Consulta: subjectFacets:"Crop rotation"
Registros recuperados: 101
Data/hora: 05/06/2024 00:51:28

Edafofauna como indicador de calidad en un suelo cumulic phaozem sometido a diferentes sistemas de manejos en un experimento de larga duración.
Provedor de dados: 32
Autores: Chocobar Guerra, Eneyda Andrea.
Los organismos del suelo contribuyen en la formación y los cambios de la estructura física del suelo e influyen en la dinámica de los nutrientes por sus efectos sobre la inmovilización y humificación de la materia orgánica. Por lo anterior, es importante estudiar la edafofauna en sistemas de larga duración (15 años) porque repercute de manera directa en el rendimiento de los cultivos y en el mejoramiento del suelo. Estas cualidades además pueden ser empleadas para crear indicadores biológicos de calidad del suelo, con el objeto de potenciar manejos agrícolas con tendencias sustentables. La investigación se enfocó en clasificar (grupo taxonómico), cuantificar (Nº individuos m-2) medir biomasa (gramos m-2) y evaluar la variación poblacional de la edafofauna...
Palavras-chave: Indicadores biológicos; Labranza; Rotación; Residuos; Biological indicator; Tillage; Crop rotation; Residues; Maestría; Edafología.
Ano: 2010
URL: http://hdl.handle.net/10521/317

Local vs. Landscape Effects of Woody Field Borders as Barriers to Crop Pest Movement
Provedor de dados: 7
Autores: Bhar, Rod; Ottawa-Carleton Institute of Biology; rbhar@ccs.carleton.ca; Fahrig, Lenore; Carleton University; lfahrig@ccs.carleton.ca.
Maintenance of woody borders surrounding crop fields is desirable for biodiversity conservation. However, for crop pest management, the desirability of woody borders depends on the trade-off between their effects at the local field scale and the landscape scale. At the local scale, woody borders can reduce pest populations by increasing predation rates, but they can also increase pest populations by providing complementary habitats and reducing movement rate of pests out of crop fields. At the regional scale, woody borders can reduce pest populations by reducing colonization of newly planted crop fields. Our objective was to develop guidelines for maximizing pest control while maintaining woody borders in the landscape. We wished to determine the...
Tipo: Peer-Reviewed Reports
Palavras-chave: Biodiversity; Crop pest; Crop rotation; Dispersal; Fencerow; Field margin; Hedgerow; Patchy population; Pest control; Shelterbelt; Simulation model; Woody border.
Ano: 1998

Corn productivity in function of surface application of lime in differents management systems and cultural preparation
Provedor de dados: 70
Autores: Narimatsu,Karem C. P.; Mello,Luiz M. M. de; Domingues,Luis A. da Silva; Chioderoli,Carlos A.; Lima,Ronaldo C.
The evaluation of technologies employed at the agricultural production system such as crop rotation and soil preparation, both associated with crop-livestock integration, is crucial. Therefore, the aim of the present study was to evaluate the incorporation of lime for three no-tillage systems and cultural managements in system of crop-livestock integration, with emphasis on corn grain yield. The experiment was conducted from January 2003 to April 2005 at Selvíria city, MS, in Dystroferric Red Latosol, clay texture. The experimental design was randomized blocks with split plots consisted of three main treatments, aimed the soil physics conditioning and the incorporation of lime: PD - No-no-tillage; CM - minimum no-tillage, and PC - conventional no-tillage;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: No tillage system; Minimum tillage; Conventional tillage; Crop-livestock integration; Crop rotation.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000200007

Physical properties of soils and soybean yields after planting cover crops
Provedor de dados: 70
Autores: SANTOS,DIEGO DOS; SOUZA,EDUARDO G. DE; NÓBREGA,LÚCIA H. P.; BAZZI,CLAUDIO L.; QUEIROZ,FERNANDO N. DE.
Cover crops are important for improving soil quality. However, soil properties usually have some spatial dependence. Thus, this study aimed to evaluate the effect of winter cover crops on physical properties of soil and soybean yields using thematic maps. Five winter treatments were used: black oats; intercropping 1 (forage turnips and black oats); intercropping 2 (forage turnips, black oats and common vetch); wheat; and control. Macroporosity, microporosity, total porosity, bulk density and water content of the soil from 0 - 0.1 m depths were evaluated after the winter cover crop management. Soybeans were sown over the entire area in the summer after the winter cover crop management, and the soybean yield was determined for each treatment. Maps for each...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil porosity; Bulk density; Crop rotation.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000200280

Desiccation time of the spring sorghum as a predecessor crop for summer soybean and autumn bean in a no-tillage system
Provedor de dados: 70
Autores: Denadai,Marcelo S.; Mello,Luiz M. M. de; Chioderoli,Carlos A.; Gazola,Rodolfo de Niro.
ABSTRACT Several authors have been questioned the desiccation interval between the coverage plants and sowing plants for the soybean crop. Therefore, this study aimed to evaluate the desiccation time of the spring sorghum as a predecessor crop for summer soybean and then for autumn bean, focusing on the straw formation for maintenance of the no-tillage system and to evaluate the yield of soybeans and beans grain, as well as analyzing the interference of sorghum straw in these cultures. The experiment was developed in the Teaching and Research Farm of FE/UNESP located in Ilha Solteira/SP where it was used an experimental design of randomized blocks with five treatments and six repetitions. The treatments consisted of five different intervals between sorghum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exudates allelochemicals; Soil cover; Desiccation interval for sowing; Crop rotation; Straw production.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000100094

Residual effect of organic fertilization on radish production
Provedor de dados: 75
Autores: Lanna,Natália BL; Silva,Priscilla Nátaly L; Colombari,Lidiane F; Corrêa,Carla Veronica; Cardoso,Antonio Ismael Inácio.
ABSTRACT this research aimed to evaluate the residual effect of doses of organic compost on the radish production, as well as its effect on soil chemical properties. experiments were conducted in two areas (“low” and “high” soil fertility). prior to this, these areas were first used to evaluate the influence of organic compost doses on endive production. after harvesting endive, radish seeds were sown into the same plots used for endive to evaluate the residual effect. the six treatments consisted of organic compost doses (0, 35, 70, 105, 140 and 175 t ha-1), evaluated in a complete block experimental design, with four replications. vegetative characteristics of radish plants (shoot, root and total fresh and dry matter weight, plant height and root...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Raphanus sativus; Crop rotation; Soil fertility; Nutrient.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000100047

Agricultura conservacionista na produção familiar no Juruá, Acre.
Provedor de dados: 14
Autores: COSTA, F. de S.; KLEIN, M. A.; CAMPOS FILHO, M. D.; SILVA, F. de A. C.; BARDALES, N. G.; SANTIAGO, A. G. C.
Conservação e preservação são conceitos interdependentes e exigem tarefas complexas para implementação nos sistemas agrícolas praticados por produtores familiares na Amazônia. Entretanto, alternativas tecnológicas existem e podem ajudar no desenvolvimento sustentável da Amazônia Brasileira. Apresentar alternativas tecnológicas ao sistema de derruba e queima no Estado do Acre é o principal objetivo deste trabalho. Safras de mandioca e milho foram cultivadas em um Argissolo Amarelo distrófico de Mâncio Lima, região do Juruá, com princípios da agricultura conservacionista no gradiente do sistema convencional da região sem adoção de tecnologia (T) até o sistema conservacionista com plantio direto, cultivo de leguminosa, adubação fosfatada e calcário (PD-MPC)....
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agricultura conservacionista; Yuca; Território da Cidadania; Vale do Juruá (AC); Mâncio Lima (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Rotación de cultivos; Suelos arcillosos.; Cero labranza; Conservación de suelos; Explotación agrícola familiar; Maíz; Prácticas de conservación de agrícolas; Rendimiento de los cultivos; Agricultura familiar; Plantio direto; Planta de cobertura; Rotação de cultura; Argissolos; Mandioca; Manihot esculenta; Milho; Zea mays; Rendimento; Conservação do solo; Agricultural conservation practice; Family farms; No-tillage; Ground cover plants; Crop rotation; Clay soils; Cassava; Corn; Crop yield; Soil conservation.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1090518

Manejo da micorriza arbuscular em sistemas integrados de lavoura e pastagens no Cerrado.
Provedor de dados: 14
Autores: MIRANDA, J. C. C. de; VILELA, L.; MIRANDA, L. N. de.
ABSTRACT: The arbuscular mycorrhizal fungi community is low in Cerrado soils and it gradually increases with soil cropping. Rotations of crops and of production systems stimulate propagation of those fungi in the soil, mycorrhiza formation and its effects in the plants. The crop-pasture integrated systems are well recommended, as pastures favors spores multiplication and crops increase the number of species of those fungi in the soil. The mycorrhizal contribution on growth of soybean and Andropogon plants, used in an integrated system, was of 50 % and 90 % respectively. Crop/pasture integration brings also environmental benefits as carbon sequestration in the soil through glomalin production and the degraded pastures recovery, through quantitative and...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Rotational cropping; Arbuscular mycorrhizal fungi; Root colonization.; Cerrado; Micorriza; Rotação de Cultura.; Crop rotation; Mycorrhizae; Spores.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571980

Recomendacoes tecnicas para a cultura da soja no Parana 1985/86.
Provedor de dados: 14
Autores: OCEPAR. Programa de Pesquisa (Cascavel, PR).
Manejo do solo; Clima; Cultivares; Populacao, densidade e epocas de semeadura; Instalacao da lavoura; Controle de plantas daninhas; Manejo de pragas; Controle de doencas; Colheita; Tratamento de sementes.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendacao tecnica; Cultivar; Rotacao; Brasil; Planta daninha; Parana; Soybean; Technical recommendation; Variety; Pest; Disease; Harvest; Weed; Seed.; Colheita; Doença; Época de Semeadura; Pratica Cultural; Praga; Semente; Solo.; Soja; Brazil; Crop rotation; Soil; Sowing date.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/448320

Agricultura racional no Acre.
Provedor de dados: 14
Autores: CAMPOS, I. S.; GOMES, T. C. de A.
A pequena propriedade rural no estado do Acre é explorada segundo o sistema itinerante de cultivo. A utilização de um sistema rotacional com leguminosas é altamente vantajoso em termos agronômicos, econômicos e sociais.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Agricultura itinerante; Acre; Amazônia Ocidental; Explotación agrícola familiar; Cultivo múltiple; Rotación de cultivos.; Agricultura familiar; Sistema de cultivo; Consorciação de cultura; Cultivo múltiplo; Rotação de cultura; Leguminosa; Family farms; Cropping systems; Crop rotation; Multiple cropping.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492148

Rotação de culturas e a incidência de patógenos da soja.
Provedor de dados: 14
Autores: HOMECHIN, M.
bitstream/item/77931/1/CNPSO-PESQ.-AND.-06-83.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Rotacao trigo; Brasil; Soybean; Fungus.; Fungo; Rhizoctonia Solani; Sclerotinia Sclerotiorum; Soja.; Fungi; Brazil; Crop rotation; Wheat.
Ano: 1983
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/444395

Manejo da adubacao fosfatada corretiva para as culturas do milho e do feijoeiro irrigado em rotacao.
Provedor de dados: 14
Autores: MIRANDA, L. N. de; AZEVEDO, J. A. de; MIRANDA, J. C. C. de; GOMES, A. C.
bitstream/CPAC-2010/22727/1/rectec-29.pdf
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: Rotacao de culturas; Brasil; Bean; Maize; Phosphate fertilizers; Solo: Adubacao.; Adubação; Cerrado; Feijão; Fosfato; Irrigação; Milho; Phaseolus Vulgaris; Zea Mays.; Crop yield; Crop rotation; Irrigation.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/566092

Rotação de culturas com a soja no norte do Estado do Paraná.
Provedor de dados: 14
Autores: GAUDENCIO, C. de A.; YORINORI, J. T.; GARCIA, A.; QUEIROZ E. F. de.
bitstream/item/77934/1/CNPSO-PESQ.-AND.-10-86.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Rotacao; Sucessao; Brasil; Parana; Soybean; Double-cropping.; Trigo; Soja.; Crop rotation; Brazil; Wheat.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445384

Artrópodes epígeos: dinâmica populacional e influência do sistema de preparo do solo e rotação de culturas.
Provedor de dados: 14
Autores: OLIVEIRA, C. M. de; RESCK, D. V. S.; FRIZZAS, M. R.
bitstream/item/75855/1/bolpd-273.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Artrópodes de solo; Savanna.; Cerrado; Pastagem.; Insecta; Crop rotation; Insects; Pastures; Soil management; Tillage.; Soil arthropods.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/899531

Recomendacoes tecnicas para o cultivo da soja: areas do Sul do Mato Grosso do Sul, Sudoeste, Norte e Oeste do Parana Zonas 15, 61, 75, 76, 77 e 92.
Provedor de dados: 14
Autores: BRASIL. Ministerio da Agricultura e Reforma Agraria.
A soja e a regiao; Manejo e conservacao do solo; Recomendacoes de cultivares e qualidade das sementes; Praticas culturais; Colheita.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Armazenagem; Planta daninha; Controle; Brasil; Parana; Sao Paulo; Mato Grosso do Sul; Soybean; Management; Conservation; Recommendation; Variety; Quality; Seed; Cultural practice; Harvest; Fertilization; Weed; Control; Disease; Loss; Pest; Adubação; Calagem; Doença; Época de Plantio; Perda; Plantio Direto; Praga; Rotação de Cultura; Semeadura; Soja; Brazil; Crop rotation; Liming; No-tillage; Soil; Sowing date; Storage.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445250

Recomendações técnicas para a cultura da soja no Paraná 1996/97.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Situacao mundial da soja; Exigencias climaticas; Rotacao de culturas; Manejo de solo; Correcao e manutencao da fertilidade do solo; Cultivares; Cuidados na aquisicao e na utilizacao da semente; Tratamento e inoculacao de sementes; Instalacao da lavoura; Controle de plantas daninhas; Manejo de pragas; Doencas e medidas de controle; Retencao foliar ("haste verde"); Colheita; Tecnologia de sementes.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Aspecto economico; Rotacao; Cultivar; Planta daninha; Inseto praga; Perdas na colheita; Brasil; Parana; Soybean; Economic situation; Variety; Seed; Weed; Insect pest; Disease; Harvesting losses.; Fertilidade do Solo; Doença; Semente; Soja.; Brazil; Crop rotation; Soil fertility.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/449558

Agricultura conservacionista: solução de inovação tecnológica e econômica para a produção diversa em solos arenosos do Juruá, Acre, Sudoeste da Amazônia - resultados integrados de 13 Anos.
Provedor de dados: 14
Autores: COSTA, F. de S.; SÁ, C. P. de; LAMBERTUCCI, D. M.; TAVELLA, L. B.; BRITO, E. de S.; KLEIN, M. A.; DICK, D. P.
A natureza intrínseca dos solos da região do Juruá e as condições atuais de manejo às quais esses solos estão submetidos aceleram ainda mais a redução contínua de sua qualidade física e química, exigindo uma solução técnica para reverter essa situação. Uma alternativa de solução técnica para as condições atuais da produção familiar no Juruá compreende o manejo das áreas já desmatadas, queimadas e cultivadas com tecnologias que permitam a recuperação e manutenção da qualidade do solo, com ganhos agronômicos, econômicos e ambientais. Um aspecto relevante é que a recuperação e manutenção da qualidade do solo podem contribuir de forma direta e/ou indireta para a redução do desmatamento e eliminação do uso do fogo na produção familiar da região. Os resultados...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Agricultura conservacionista; Suelos arenosos; Cero labranza; Cultivo mixto; Rotación de cultivos; Adopción de innovaciones; Ramal Alto Pentecostes; Mâncio Lima (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Agricultura Familiar; Solo Arenoso; Plantio Direto; Consorciação de Cultura; Rotação de Cultura; Arroz; Oryza Sativa; Feijão; Phaseolus Vulgaris; Milho; Zea Mays; Planta de Cobertura; Cobertura do Solo; Transferência de Tecnologia; Adoção de Inovações; Agricultural conservation practice; Sandy soils; No-tillage; Mixed cropping; Crop rotation; Rice; Beans; Corn; Ground cover plants; Technology transfer; Innovation adoption.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121607

Recomendações técnicas para a cultura da soja na região central do Brasil - 1994/95.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Perspectivas do aumento da oferta brasileira de soja no mercado mundial: a potencialidade dos cerrados; Recomendacoes tecnicas: Exigencias climaticas; Rotacao de culturas; Manejo do solo; Correcao e manutencao da fertilidade do solo; Cultivares; Cuidados na aquisicao e na utilizacao da semente; Tratamento de sementes; Inoculacao; Epoca de semeadura; Populacao de plantas e espacamento; Controle de plantas daninhas; Manejo de pragas; Doencas e medidas de controle; Retencao foliar (haste verde); Colheita.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultivar; Recomendacao; Brasil; Regiao central; Rotacao; Seed; Soybean; Planta daninha; Retencao foliar; Inoculation; Weed; Pest; Disease; Harvest; Retention.; Colheita; Clima; Cerrado; Doença; Inoculação; Praga; Semente; Semeadura; Soja; Solo.; Climate; Crop rotation; Brazil; Soil; Sowing.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/449263

Adubação mineral para mandioca e efeito residual no milho em rotação em solo arenoso de Mâncio Lima, Juruá, Oeste do Acre, Sudoeste da Amazônia brasileira.
Provedor de dados: 14
Autores: COSTA, F. de S.; TAVELLA, L. B.; BRAVIN, M. P.; SOUZA, J. F. de; LAMBERTUCCI, D. M.
O parcelamento da adubação mineral no manejo conservacionista do solo sincronizado com a necessidade de nutrientes da mandioca aumenta a sua produção, bem como a de culturas em rotação devido ao efeito residual dessa adubação. São apresentados os resultados dessa hipótese em dois estudos em delineamento experimental de blocos casualizados com quatro repetições. No primeiro estudo foi avaliado o desempenho agronômico da mandioca em resposta à adubação mineral em seis épocas de parcelamento: T1 (controle) - calcário; T2 - calcário + K e P 100% no plantio e com N 100% aos 30 dias após o plantio (DAP); T3 - calcário + K e P 50% no plantio e 50% aos 60 DAP e com N 50% aos 30 DAP e 50% aos 60 DAP; T4 - calcário + K e P 50% no plantio e 50% aos 90 DAP e com N 50%...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Agricultura conservacionista; Yuca; Prácticas de cultivo vegetal; Prácticas de conservación de agrícolas; Cero labranza; Rotación de cultivos; Adubo mineral; Fertilizantes minerales; Maíz; Efectos residuales; Mâncio Lima (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Mandioca; Manihot Esculenta; Milho; Zea Mays; Efeito Residual; Pratica Cultural; Solo Arenoso; Plantio Direto; Rotação de Cultura; Planta de Cobertura; Fertilizante; Cassava; Corn; Residual effects; Plant cultural practices; Agricultural conservation practice; Sandy soils; No-tillage; Crop rotation; Ground cover plants; Mineral fertilizers.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126831

PRODUÇÃO de feno, silagem e ração em sistema ILPF : estratégia para desenvolver a atividade pecuária nos cerrados do Meio-Norte brasileiro.
Provedor de dados: 14
Fenação - processo adotado; Maquinas e equipamentos para fenação em propriedades mecanizadas; Etapas da fenação; Corte e enleiramento; Recolhimento, enfardamento e armazenamento; Forrageiras utilizadas para produção de feno em propriedades de ILPF; Ensilagem ? processo adotado; Máquinas e equipamentos para ensilagem em propriedades de ILPF; Colheita, picagem e transporte do milho e do sorgo para ensilar; Enchimento mecanizado do silo-bolsa; Desensilar e distribuir silagem; Produção de ração; Produção de mistura múltipla; Algumas análises de subprodutos das fazendas e indústrias realizadas no Laboratório de Nutrição Animal da Embrapa Meio-Norte; Impactos da produção de feno, silagem e ração na produção de carne no cerrado da região Meio-Norte brasileira.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Forragem; Produção; Rotação de Cultura; Consorciação de Cultura; Pecuária; Forage production; Crop rotation; Intercropping; Livestock.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128581

Recomendações técnicas para a cultura da soja na região Central do Brasil 1996/97.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Situacao mundial da soja; Producao; Exportacoes/importacoes; Esmagamento; Estoques finais; Farelo de soja; Oleo de soja; Balanco de oferta e demanda mundial de soja; Recomendacoes tecnicas; Exigencias climaticas; Exigencias hidricas; Exigencias termicas e fotoperiodicas; Rotacao de culturas; Selecao de especies para rotacao de culturas; Planejamento da propriedade; Rotacao de culturas com a soja no sul do Maranhao; Manejo do solo; Manejo de residuos culturais; Preparo do solo; Alternancia do uso de implementos no preparo do solo; Rompimento da camada compactada; Sistema de semeadura direta; Correcao e manutencao da fertilidade do solo; Acidez do solo; Calagem; Qualidade do calcario e condicoes de uso; Correcao da acidez subsuperficial; Exigencias minerais...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendacao tecnica; Planta daninha; Cultivar; Aspecto economico; Rotacao; Brasil; Soybean; Nematode; Technical recommendation; Seed; Pest; Disease; Inoculation; Variety; Economic situation; Oil.; Colheita; Clima; Cerrado; Fertilidade do Solo; Época de Semeadura; Doença; Inoculação; Nematóide; Óleo; Pesquisa; Praga; Semente; Soja.; Crop rotation; Harvesting; Climate; Brazil; Research; Soil fertility; Sowing date; Savannas; Weeds.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/460297

Recomendações técnicas para a cultura da soja na Região Central do Brasil - 1995/96.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Perspectivas do aumento da oferta brasileira de soja no mercado mundial: A potencialidade dos cerrados; Recomendações técnicas: Exigências climáticas; Rotação de culturas; Manejo do solo; Correção e manutenção da fertilidade do solo; Cultivares; Cuidados na aquisição e na utilização da semente; Tratamento e inoculação de sementes; Época de semeadura; População de plantas e espaçamento; Controle de plantas daninhas; Manejo de pragas; Doenças e medidas de controle; Retenção foliar (haste verde); Colheita.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendacao tecnica; Cultivar; Inoculacao de semente; Planta daninha; Controle; Rotacao de culturas; Brasil; Soybean; Technical recommendation; Disease; Pest; Weed; Control; Harvest; Fertilization.; Adubação; Colheita; Clima; Cerrado; Fertilidade; Doença; Pesquisa; Praga; Semeadura; Solo.; Soja; Crop rotation; Climate; Brazil; Research; Soil fertility; Savannas; Seed inoculation; Sowing date.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/449421

Recomendações técnicas para a cultura da soja no Paraná 1989/90.
Provedor de dados: 14
Autores: OCEPAR. Programa de Pesquisa (Cascavel, PR).
Cenário da soja; Manejo do solo; Rotação de culturas; Clima; Cultivares; População e densidade de semeadura; Épocas de semeadura; Instalação da lavoura; Controle de plantas daninhas; Manejo de pragas; Controle de doenças; Colheita; Retenção foliar ("haste verde").
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendação técnica; Cultivar; Brasil; Paraná; Semeadura direta; Gesso agricola; Rotação; Planta daninha; Soybean; Technical recommendation; Cultural practice; Variety; Weed; Pest; Disease; Fungus; Harvest.; Acidez; Bactéria; Calagem; Colheita; Doença; Fungo; Praga; Pratica Cultural; Solo; Soja; Vírus.; Acidity; Crop rotation; Brazil; Gypsum; Liming; Soil; Sowing date.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/448324

Produtividade da soja em sucessão aos cultivos de outono-inverno, em Dourados, MS.
Provedor de dados: 14
Autores: RIBEIRO, L. M.; SANTOS, A. L. F. dos; MECHI, I. A.; FACHINELLI, R.; MAKINO, P. A.; CECCON, G.
bitstream/item/148579/1/36-produtividade-da-soja-em....pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Rotação de culturas.; Plantio Direto; Zea Mays.; Crop rotation; No-tillage.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1054360

Adubação verde e tratamento químico do solo na produtividade de cenoura no Acre.
Provedor de dados: 14
Autores: NUNES, M. U. C.; MOURA, G. de M.
A incorporação de leguminosas no estadio de floração visa principalmente o aumento de matéria orgânica e nitrogênio. Essa prática beneficia as propriedades físicas, químicas e biológicas do solo, propiciando na maioria dos casos aumento de produtividade da cultura, a seguir implantada. A adubação verde no período da entressafra proporciona maior controle da erosão e da infestação de nematóides, melhora a retenção de água e adubos químicos no solo, controla as plantas daninhas e plantas hospedeiras de pragas e doenças, além dos benefícios acima citados. Em consequência reduz a utilização de insumos como herbicidas, inseticidas, fungicidas, nematicidas e fertilizantes. Os efeitos benéficos da adubação verde sobre a produtividade de diversas culturas como o...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Embrapa Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Control biológico; Enfermedades y desórdenes de las plantas; Fertilizantes orgánicos; Zanahorias.; Tratamiento químico; Suelo; Rotación de cultivos; Rendimiento de los cultivos; Propiedades fisicoquímicas; Plantación; Nemátodo parasitario de las plantas; Mucuna pruriens var utilis; Cenoura; Daucus carota; Plantio; Rendimento; Doença de planta; Controle biológico; Nematóide; Meloidoginose; Meloidogyne incognita; Tratamento do solo; Propriedade físico-química; Adubação verde; Rotação de cultura; Mucuna preta; Stizolobium aterrimum; Feijão de porco; Canavalia ensiformis; Crotalária; Cravo da índia; Campo Experimental.; Carrots; Planting; Crop yield; Plant diseases and disorders; Biological control; Crotalaria spectabilis; Plant parasitic nematodes; Soil; Chemical treatment; Physicochemical properties; Organic fertilizers; Crop rotation; Tagetes erecta; Carbofuran.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492337

Resultados econômicos de sistemas de produção de conduzidos por seis anos em Londrina, PR.
Provedor de dados: 14
Autores: GAUDENCIO, C. de A.; DOSSA, D.
bitstream/item/53985/1/43.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Rotacao; Sucessao; Brasil; Parana; Soybean; Sunflower; Lupine; Double-cropping; Cropping system.; Centeio; Girassol; Milho; Pousio; Trigo; Tremoço; Sistema de Produção; Soja.; Brazil; Crop rotation; Corn; Barley; Wheat.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445379

Atributos físicos do solo após cultivos de outono-inverno em plantio direto, Dourados, MS.
Provedor de dados: 14
Autores: RIBEIRO, L. M.; SANTOS, A. L. F. dos; MECHI, I. A.; MAKINO, P. A.; CECCON, G.
bitstream/item/148225/1/3.-atributos....pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Consórcio; Rotação de culturas; Consortium.; Compactação do Solo.; Crop rotation; Soil compaction.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1054012

Importância da rotação de culturas para a produção agrícola sustentável no Paraná.
Provedor de dados: 14
Autores: FRANCHINI, J. C.; COSTA, J. M. da; DEBIASI, H.; TORRES, E.
A rotação de culturas constitui-se em um dos requisitos para a qualidade do sistema plantio direto. Com base em resultados de pesquisa obtidos em experimentos de longa duração conduzidos em diversas regiões do Paraná, este trabalho tem como objetivo demonstrar os benefícios da rotação de culturas para a sustentabilidade da produção agrícola, de modo a contribuir para aumentar a adoção dessa prática pelos produtores, assim como auxiliar na concepção e planejamento de sistemas de rotação de culturas. Os dados obtidos têm demonstrado que os benefícios da rotação de culturas sobre a qualidade do solo, bem como sobre a dinâmica de pragas, doenças e plantas daninhas, resultam em aumentos na produtividade de todas as culturas econômicas envolvidas no sistema de...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Conservação do solo; Rotação de cultura; Soil conservation; Crop rotation.
Ano: 2011
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/897259

Manejo e conservação de solo no Agreste pernambucano.
Provedor de dados: 14
Autores: FREITAS, M. B. de; CHOUDHURY, E. N.; FARIA, C. M. B. de.
Este trabalho constituiu-se de três experimentos conduzidos por vários anos na zona fisiográfica do Agreste de pernambuco, com o objetivo de encontrar práticas de manejo e conservação de solo que proporcionassem melhores resultados ao cultivo do tomate em condições de sequeiro. O primeiro experimento continha os seguintes tratamentos: 1. Solo lavrado e com cultivo contínuo; 2. Solo lavrado e com rotação bienal; 3. Solo não lavrado e com rotação bienal. A rotação era formada do cultivo de tomate em um ano e da leguminosa feijão-de-porco em outro ano. No solo lavrada e em cultivo contínuo de tomate, ocorreram as maiores perdas de solo e a menor produtividade do tomateiro. Maior controle da erosão e maior produtividade foram obtidos no solo não lavrado e em...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Brasil; Pernambuco; Região Agreste; Management; Conservation; Erosion.; Solo; Adubação; Conservação; Erosão; Manejo; Rotação de Cultura.; Crop rotation; Fertilizer application; Soil.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132095

Recomendações técnicas para a cultura da soja no Paraná 1991/92.
Provedor de dados: 14
Autores: EMBRAPA - Empresa Brasileira de Pesquisa Agropecuária.
A agricultura e Mercosul; Manejo do solo; Rotacao de culturas; Clima; Cultivares; Populacao e densidade de semeadura; Epocas de semeadura; Instalacao da lavoura; Controle de plantas daninhas; Manejo de pragas; Controle de doencas; Colheita; Retencao foliar ("haste verde"); Tecnologia de sementes.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendacao tecnica; Cultivar; Densidade; Epoca; Planta daninha; Controle; Retencao foliar; Brasil; Parana; Soybean; Technical directions; Fertilization; Variety; Weed; Control; Pest; Disease; Fungus; Nematode; Harvest; Seed.; Adubação; Bactéria; Colheita; Doença; Fungo; Manejo; Nematóide; Pratica Cultural; População; Praga; Semeadura; Rotação de Cultura; Semente; Tecnologia; Solo; Vírus.; Soja; Density; Crop rotation; Crop management; Brazil; Population; Plant density; Soil; Sowing date.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/447056

Marcha de absorção de macronutrientes na mamoneira híbrida de porte baixo em Mato Grosso.
Provedor de dados: 14
Autores: SEVERINO, L. S.; SCHLICK, G. D. de S.; DE PAULA, M. P.; SANTOS, T. I. dos; SOUZA, E. C. S.
O óleo de mamona (Ricinus communis) tem grande demanda na indústria química mundial para ser utilizado em diversos produtos. Essa cultura é atraente para várias regiões do Brasil, principalmente por sua característica de boa tolerância à seca no cultivo em segunda safra e pelo seu efeito supressor de algumas espécies de nematoides que causam redução de produtividade em outras lavouras agrícolas. Os avanços na tecnologia de produção de mamona estão possibilitando sua expansão para novas regiões de cultivo. A mamona é principalmente uma opção para rotação de culturas no sistema soja-milho-algodão e para cultivo sob irrigação. A obtenção de altas produtividades na cultura da mamona depende da adequada nutrição da planta. O estudo da marcha de absorção e...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Mamona; Produção; Hibrido; Rotação de Cultura; Soja; Milho; Nutrição Vegetal; Biomassa; Sistema de Cultivo; Planta Oleaginosa; Castor beans; Oilseeds; Soybean products; Biomass production; Cotton; Crop rotation; Agricultural conservation practice.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135522

Milho-verde em diferentes arranjos com plantas de cobertura como opção de renda, rotação de culturas e produção de palhada para o preparo do plantio direto de hortaliças.
Provedor de dados: 14
Autores: MOTTA, I. de S.; GARCIA, R. A.; COMUNELLO, E.; TOMAZI, M.; RICHETTI, A.
Foram realizados dois ensaios com milho-verde irrigado em diferentes arranjos com plantas de cobertura. Avaliaram-se componentes de produção, produtividade, análise econômica do milho-verde e produção de fitomassa. Ensaio 1 ? Plantas de cobertura (de outono?inverno) e diferentes manejos da palhada antecedendo o cultivo do milho-verde primeira safra: A semeadura das plantas de cobertura ocorreu em 21 de maio de 2019 e as opções foram aveia-preta exclusiva e mix (aveia-preta + nabo-forrageiro + ervilhaca-peluda). Os diferentes manejos da palhada foram: trituração (com e sem aplicação posterior de herbicida); gradeação e rolo-faca. A fitomassa -1 -1 seca das plantas de cobertura variou de 4,15 t ha a 4,81 t ha . O milho-verde primeira safra foi semeado em 18...
Tipo: Folhetos
Palavras-chave: Custo de Produção; Milho Verde; Rotação de Cultura; Horticulture; Economic costs; Environmental sustainability; Crop rotation.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1138712

Recomendacoes tecnicas para a cultura da soja no Parana 1986/87.
Provedor de dados: 14
Autores: OCEPAR. Programa de Pesquisa (Cascavel, PR).
Investimentos em tecnologia: a nova realidade da nova agricultura; Manejo do solo; Clima; Cultivares; Populacao, densidade e epocas de semeadura; Instalacao da lavoura; Controle de plantas daninhas; Manejo de pragas; Controle de doencas; Colheita.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendacao tecnica; Brasil; Cultivar; Parana; Rotacao; Fertilizacao; Planta daninha; Controle; Soybean; Cultural practice; Variety; Foliar fertilization; Disease; Fungus; Nematode; Weed; Harvest; Control; Management.; Adubação Foliar; Bactéria; Colheita; Doença; Época de Semeadura; Fungo; Nematóide; Pratica Cultural; Soja; Vírus.; Solo; Brazil; Crop rotation; Soil; Sowing date.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/448321

Controle de Meloidogyne javanica em tomate-salada e feijao-de-vagem com o cultivo previo de Crotalaria spectabilis.
Provedor de dados: 14
Autores: CHARCHAR, J. M.; MOITA, A. W.
O feijão-de-vagem é uma hortaliça severamente atacada por Meloidogyne javanica quando cultivada após o tomate-salada. Para avaliar a viabilidade de cultivo do feijão-de-vagem após o tomate-salada, cultivou-se a Crotalaria spectabilis, em faixas, por período de quatro meses, previamente ao cultivo do tomateiro. Faixas cultivadas com quiabeiro, antes do cultivo com tomate-salada, foram mantidas para comparação. Nas faixas cultivadas anteriormente com C. spectabilis, com os índices de multiplicação (IM) variando de 11 a 76 por parcela e os números de ovos do nematóide de 1.500 a 6.000 por planta, as produtividades foram de 2 a 26% maiores em cultivares de tomateiro e de 6 a 31,5% maiores em cultivares de feijão-de-vagem, em comparação com as produtividades...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Feijao-de-vagem; Controle; Brasilia; Distrito Federal; Brasil; Snap bean; Control; Nematodes.; Cerrado; Lycopersicon Esculentum; Meloidogyne Javanica; Nematóide; Phaseolus Vulgaris; Rotação de Cultura; Tomate.; Crotalaria spectabilis; Brazil; Crop rotation; Tomatoes.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/767508

Teores de fósforo e nitrogênio em diferentes sistemas de produção na região subúmida argentina.
Provedor de dados: 14
Autores: MONTEIRO, L. C.; SALTON, J. C.; ALBERTO GALANTINI, J.; PEREIRA, E. de S.; DUVAL, M.; JUNQUEIRA, P. H.
bitstream/item/189972/1/ORAL15.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Manejo do Solo; Pastagem; Rotação de Cultura; Soil management; Pastures; Crop rotation.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1103297

Recomendações técnicas para a cultura da soja no Paraná 1988/89.
Provedor de dados: 14
Autores: OCEPAR. Programa de Pesquisa (Cascavel, PR).
Aspectos da comercialização da soja; Manejo do solo; Rotação de culturas; Clima; Cultivares; População e densidade de semeadura; Épocas de semeadura; Instalção da lavoura; Controle de plantas daninhas; Manejo de pragas; Controle de doenças; Colheita; Retenção foliar ("haste verde").
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendação técnica; Planta daninha; Rotação; Cultivar; Brasil; Parana; Soybean; Technical recommendation; Cultural practice; Weed; Variety; Fertilization; Disease; Pest; Nematode; Fungus; Harvest; Seed.; Adubação Foliar; Acidez; Adubação; Bactéria; Calagem; Colheita; Época de Semeadura; Doença; Fungo; Gesso; Manejo; Nematóide; Pratica Cultural; Praga; Semente; Vírus.; Soja; Solo; Acidity; Brazil; Crop rotation; Gypsum; Liming; Soil management; Sowing date.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/448323

Rendimento de grãos de trigo influenciado por sistemas de manejo de solo e de rotação de culturas.
Provedor de dados: 14
Autores: SANTOS, H. P. dos; FONTANELI, R. S.; DALMAGO, G. A.; CASTRO, R. L. de; SANTI, A.; NASCIMENTO JUNIOR, A. do; POSSEBOM, T.; ARAÚJO, E. M. de.
bitstream/item/183649/1/ID44363-2018BPD90.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Trigo; Rotação de Cultura; Plantio Direto; Manejo do Solo; Wheat; Crop rotation; No-tillage; Soil management.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1096512

Batata-doce (Ipomoea batatas (L.) Lam.).
Provedor de dados: 14
Autores: MIRANDA, J. E. C. de; FRANÇA, F. H.; CARRIJO, O. A.; SOUZA, A. F.
bitstream/item/74851/1/CNPH-DOCUMENTOS-3-BATATA-DOCE-FL-07810.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Batata-doce; Cultivar; Propagacao; Controle; Classificacao; Soqueira; Rotacao; Feeding; Fertilization; Propagation; Spacing; Diseases; Control; Pest insects; Fungus; Nematodes; Harvest.; Adubação; Alimento; Calagem; Clima; Colheita; Doença; Embalagem; Espaçamento; Época de Plantio; Fertilizante; Fungo; Inseto; Irrigação; Ipomoea Batatas; Nematóide; Praga; Solo; Sistema de Produção; Variedade; Vírus.; Crop rotation; Cropping systems; Farming systems; Fertilizers; Climate; Classification; Liming; Irrigation; Packaging; Planting date; Sweet potatoes; Soil; Varieties.
Ano: 1987
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/768390

Manejo de insetos pragas na sucessão trigo-soja em Passo Fundo, RS.
Provedor de dados: 14
Autores: MARSARO JÚNIOR, A. L.; PEREIRA, P. R. V. da S.; PIRES, J. L. F.; STRIEDER, M. L.; DE MORI, C.; SCARPARO, A. P.; LAU, D.; PANIZZI, A. R.
bitstream/item/163034/1/ID44102-2017DO169.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: MIP; Rio Grande do Sul; Manejo integrado.; Rotação de cultura.; Crop rotation.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1074471

Aumento da rentabilidade em sistemas de produção de cria.
Provedor de dados: 14
Autores: CARNEIRO JUNIOR, J. M.
A atividade de cria pode ser considerada uma das mais importantes fases na produção de bovinos de corte. A razão para isso está no fato dessa etapa ser a responsável pelo principal produto que irá abastecer toda a cadeia produtiva – o bezerro. A correta adoção e gestão desses procedimentos possibilitam a manutenção de um rebanho em constante melhoria genética, com a substituição de vacas improdutivas, inférteis ou que desmamam bezerros leves, por novilhas de melhor valor genético. Adicionalmente, propiciam a produção de lotes de bezerros uniformes e mais pesados com a maximização do potencial genético e melhor retorno econômico na atividade.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Estação de monta; Manejo sanitário; Boas práticas agrícolas; Peso à desmama; Inseminação artificial a tempo fixo (IATF); Pasture quality; Ganado; Producción animal; Eficacia reproductora; Rentabilidad; Buenas prácticas agrícolas; Terneros; Peso al destete; Cruce de animales; Rotación de cultivos; Inseminación artificial.; Pecuária; Eficiência Reprodutiva; Rotação de Cultura.; Transferência de Tecnologia; Gado Nelore; Bezerro; Melhoramento Genético Animal; Pastagem; Rentabilidade; Qualidade; Produção Animal; Animal breeding; Crop rotation; Artificial insemination.; Calves; Weaning weight; Livestock; Animal production; Reproductive efficiency; Profitability; Good agricultural practices; Technology transfer; Nellore.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131727

Natural incidence of egg parasitoids of Edessa meditabunda (F.) (Hemiptera: Pentatomidae) on Crotalaria spectabilis in Campo Novo do Parecis, MT, Brazil
Provedor de dados: 82
Autores: Golin,V; Loiácono,MS; Margaría,CB; Aquino,DA.
Egg parasitoids of the stink bug Edessa meditabunda (F) were studied on rattlepod Crotalaria spectabilis used in soybean crop rotation in Campo Novo do Parecis, Mato Grosso state, central western Brazil. Seven species of parasitoids were found: two Encyrtidae, one Eurytomidae, and four Platygastridae. The occurrence of Trissolcus euchisti (Ashmead) and Trissolcus elimatus Johnson (Platygastridae) on eggs of E. meditabunda is recorded for the first time. Moreover, this is the first record of T. elimatus and T. euchisti from Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop rotation; Rattlepod; Encyrtidae; Eurytomidae; Platygastridae.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000500015

Pigeonpea Variety ICPL 151
Provedor de dados: 30
Palavras-chave: Pigeonpeas; Wheats; Genotypes; Segregation; Grain legumes; Millets; Crop rotation; Cropping systems; Land management; Yields.
Ano: 1993
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3841

Residual effects of superficial liming on tropical soil under no-tillage system
Provedor de dados: 86
Autores: Costa,Claudio Hideo Martins da; Crusciol,Carlos Alexandre Costa; Ferrari Neto,Jayme; Castro,Gustavo Spadotti Amaral.
Abstract The objective of this work was to evaluate the long-term effects of the surface application of lime on soil fertility and on the mineral nutrition and grain yield of soybean, and of black oat and sorghum in crop succession. The experiment was carried out on a clayey Oxisol, in a randomized complete block design, with four replicates. Treatments consisted of lime the rates of 0, 1,000, 2,000, and 4,000 kg ha-1, applied in October 2002 and November 2004. Soil samples were collected at five soil layers, down to 0.60-m depth. Surface liming was effective in reducing soil acidity and increasing Ca2+ and Mg2+ contents in the subsurface. Moreover, it increased available phosphorus contents and soil organic matter in the long term (48 to 60 months after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop rotation; Long-term experiment; Plant nutrition; Soil fertility; Subsurface soil acidity; Yield components.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000901633

Fusarium wilt incidence and common bean yield according to the preceding crop and the soil tillage system
Provedor de dados: 86
Autores: Toledo‑Souza,Eliane Divina de; Silveira,Pedro Marques da; Café‑Filho,Adalberto Corrêa; Lobo Junior,Murillo.
The objective of this work was to evaluate the effects of preceding crops and tillage systems on the incidence of Fusarium wilt (Fusarium oxysporum f. sp. phaseoli) and common bean (Phaseolus vulgaris) yield. The cultivar BRS Valente was cultivated under center‑pivot irrigation in the winter seasons of 2003, 2004 and 2005, after several preceding crops established in the summer seasons. Preceding crops included the legumes Cajanus cajan (pigeon pea), Stylosanthes guianensis, and Crotalaria spectabilis; the grasses Pennisetum glaucum (millet), Sorghum bicolor (forage sorghum), Panicum maximum, and Urochloa brizantha; and a consortium of maize (Zea mays) and U. brizantha (Santa Fé system). Experiments followed a strip‑plot design, with four replicates....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fusarium oxysporum; Phaseolus vulgaris; Crop‑livestock integration; Crop rotation; No‑tillage; Soilborne pathogen.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000800002

Soil aggregation according to the dynamics of carbon and nitrogen in soil under different cropping systems
Provedor de dados: 86
Autores: Seben Junior,Getulio de Freitas; Corá,José Eduardo; Lal,Rattan.
Abstract The objective of this work was to evaluate total soil carbon and nitrogen, as well as their contents in particulate and mineral-associated C fractions; to determine C stock and sequestration rates in the soil; and to verify the effect of C and N contents on soil aggregation, using different crop rotations and crop sequences under no-tillage. The study was carried out for nine years in a clayey Oxisol. The treatments consisted of different cropping systems formed by the combination of three summer crops (cropped until March) - corn (Zea mays) monocropping, soybean (Glycine max) monocropping, and soybean/corn rotation - and seven second crops (crop successions). Soil samples were taken at the 0.00-0.10-m layer for physical fractionation of C and N,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbon sequestration; Carbon stocks; Cover crops; Crop rotation; Soil aggregates; Soil organic matter.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000901652

Agronomic performance of soybean grown in succession to winter cover crops
Provedor de dados: 86
Autores: Krenchinski,Fábio Henrique; Cesco,Victor José Salomão; Rodrigues,Danilo Morilha; Albrecht,Leandro Paiola; Wobeto,Katle Samaya; Albrecht,Alfredo Júnior Paiola.
Abstract: The objective of this work was to evaluate the effect of winter cover crop species on the agronomic performance of soybean (Glycine max) cropped in succession, under a no-tillage system. The study was conducted during three crop seasons (2011/2012, 2012/2013, and 2013/2014), with the following cover crops: white oat (Avena sativa), black oat (Avena strigosa), ryegrass (Lolium multiflorum), vetch (Vicia sativa), forage radish (Raphanus sativus), the intercrop black oat + forage radish, and wheat (Triticum aestivum) as the standard management. Forage radish and the intercrop black oat + forage radish provided greater soil cover rates after 30 days of planting, as well as dry matter production in the three crop seasons. After 45 and 90 days from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Crop rotation; Mulching; No-tillage; Soil cover.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000800909

Organic compounds from plant extracts and their effect on soil phosphorus availability
Provedor de dados: 86
Autores: Pavinato,Paulo Sergio; Merlin,Alexandre; Rosolem,Ciro Antonio.
The objective of this work was to evaluate the effect of organic compounds from plant extracts of six species and phosphate fertilization on soil phosphorus availability. Pots of 30 cm height and 5 cm diameter were filled with Typic Hapludox. Each pot constituted a plot of a completely randomized design, in a 7x2 factorial arrangement, with four replicates. Aqueous extracts of black oat (Avena strigosa), radish (Raphanus sativus), corn (Zea mays), millet (Pennisetum glaucum), soybean (Glycine max), sorghum (Sorghum bicolor), and water, as control, were added in each plot, with or without soluble phosphate fertilization. After seven days of incubation, soil samples were taken from soil layers at various depths, and labile, moderately labile and nonlabile P...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Raphanus sativus; Cover crops; Crop rotation; Labile phosphorus; Low-molecular-weight organic acids; Phosphorus fractionation.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008001000017

Effect of management practices on mycorrhizal infection, growth and dry matter partitioning in field-grown bean
Provedor de dados: 86
Autores: Oliveira,Antonio Alberto Rocha; Sanders,Francis Edward.
The experiment was carried out on unsterilized field soil with low phosphorus availability with the objective of examining the effect of cultural practices on mycorrhizal colonization and growth of common bean. The treatments were: three pre-crops (maize, wheat and fallow) followed by three soil management practices ("ploughing", mulching and bare fallow without "ploughing" during the winter months). After the cultural practices, Phaseolus vulgaris cv. Canadian Wonder was grown in this soil. Fallowing and soil disturbance reduced natural soil infectivity. Mycorrhizal infection of the bean roots occurred more rapidly in the recently cropped soil than in the fallow soil. Prior cropping with a strongly mycorrhizal plant (maize) increased infectivity even...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Arbuscular mycorrhizal fungi; Soil management practices; Crop rotation.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999000700018

Ruzigrass affecting soil-phosphorus availability
Provedor de dados: 86
Autores: Merlin,Alexandre; He,Zhenli Li; Rosolem,Ciro Antonio.
The objective of this work was to evaluate the effectiveness of ruzigrass (Urochloaruziziensis) in enhancing soil-P availability in areas fertilized with soluble or reactive rock phosphates. The area had been cropped for five years under no-till, in a system involving soybean, triticale/black-oat, and pearl millet. Previously to the five-year cultivation period, corrective phosphorus fertilization was applied once on soil surface, at 0.0 and 80 kg ha-1 P2O5, as triple superphosphate or Arad rock phosphate. After this five-year period, plots received the same corrective P fertilization as before and ruzigrass was introduced to the cropping system in the stead of the other cover crops. Soil samples were taken (0-10 cm) after ruzigrass cultivation and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachiaria ruziziensis; Urochloa ruziziensis; Cover crops; Crop rotation; P cycling; Phosphorus fractionation.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013001200007

Duration of the effects of scarification and raised bed associated with vegetation cover on soybean yield on an Alfisol
Provedor de dados: 86
Autores: Fin,Silvana Spaniol; Marchesan,Enio; Gubiani,Paulo Ivonir; Farenzena,João Alberto Pedroso; Murari,Marcos Stefanello; Coelho,Lucas Lopes; Cargnelutti Filho,Alberto; Aramburu,Bruno Behenck.
Abstract: The objective of this work was to determine the duration of the effects of the mechanical interventions scarification and raised bed on soybean (Glycine max) grain yield on an Alfisol, as well as to evaluate, through physical indicators, if the use of cover plants during winter increases the duration of these effects. The experimental design was a complete randomized block with four replicates. Two factors were evaluated. The first consisted of types of soil preparation systems: SC14, scarification in November 2014; SC15, scarification in November 2015; RB14, raised bed built in November 2014; and RB15, raised bed built in November 2015. The second consisted of the type of cover crop used: winter fallow, oat, ryegrass, and wheat. From November...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Crop rotation; Rice areas; Soil compaction; Soil preparation.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001101230

Development of Sclerotium rolfsii sclerotia on soybean, corn, and wheat straw, under different soil temperatures and moisture contents
Provedor de dados: 86
Autores: Pinheiro,Victor dos Reis; Seixas,Claudine Dinali Santos; Godoy,Cláudia Vieira; Soares,Rafael Moreira; Oliveira,Maria Cristina Neves de; Almeida,Álvaro Manuel Rodrigues.
The objective of this work was to evaluate the effect of moisture and temperature on the development of Sclerotium rolfsii on soybean, corn, and wheat straw. Wheat straw produced the lowest number of sclerotia. Intermediate soil moisture level (70% of field capacity), and temperatures ranging between 25-30ºC favored sclerotia development. No sclerotia were formed at temperatures between 30-35ºC, on any type of straw.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Glycine max; Crop rotation; No-tillage; Sclerotium blight.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000300014

Watermelon cultivation in regeneration areas of a sugarcane field under different soil managements
Provedor de dados: 86
Autores: Araújo,Humberto Sampaio de; Branco,Roberto Botelho Ferraz; Moraes,Carolina Cinto de; Calori,Alex Humberto; Rós,Amarílis Beraldo; Purquerio,Luis Felipe Villani.
Abstract: The objective of this work was to evaluate watermelon (Citrullus lanatus) cultivation in regeneration areas of a sugarcane field, under different soil management systems and N fertilization regimes. Two experiments were carried out in the 2014/2015 and 2015/2016 harvest seasons, in areas of sugarcane plantation in Andradina, in the state of São Paulo, Brazil. Cultivations were performed in a randomized complete block design, with plots and subplots, and four replicates. The plots represented the tillage systems (conventional, minimum tillage, and no-tillage), and the subplots, the different N fertilization rates (0, 100, 200, and 300 kg ha-1) applied as topdressing. In 2014/2015, the minimum tillage system resulted in the highest commercial yield...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrullus lanatus; Conservational system; Crop rotation; Nitrogen fertilization.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102500

Physical quality of an Oxisol under no-tillage subjected to different cropping systems
Provedor de dados: 86
Autores: Seben Junior,Getulio de Freitas; Corá,José Eduardo; Lal,Rattan.
Abstract The objective of this work was to evaluate the physical quality of an Oxisol under no-tillage subjected to different crop rotations and crop sequences. The experiment was carried out in a clayey Oxisol, during six years, in a randomized complete block design, with strip plots and three replicates. The following physical indicators of soil quality were evaluated: soil density and carbon content, as well as mean weight diameter and tensile strength of aggregates. Treatments consisted of three summer crop rotations - corn/corn (Zea mays), soybean/soybean (Glycine max), and soybean/corn - and of seven second crops (crop sequences) - corn, sunflower (Helianthus annuus), oilseed radish (Raphanus sativus), pearl millet (Pennisetum americanum), pigeon pea...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbon sequestration; Crop rotation; Diameter of aggregates; Soil density; Soil organic carbon; Tensile strength.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000901568

SELECTION OF HERBICIDES TARGETING THE USE IN CROP SYSTEMS CULTIVATED WITH SHOWY CROTALARIA
Provedor de dados: 87
Autores: BRAZ,G. B. P; OLIVEIRA JR,R. S; CONSTANTIN,J.; TAKANO,H. K.; CHASE,C. A.; FORNAZZA,F. G. F.; RAIMONDI,R. T.
ABSTRACT The increase in the area planted with Crotalaria spectabilishas occurred by several factors, highlighting the potential to reduce the nematodes, nitrogen fixation and the high production of biomass. By becoming a species sown as a crop, it is necessary to control the weeds that coexist with showy crotalaria. This change in the use of this crop creates the possibility of this specie becoming a weed. The aim of this study was to assess the potential use of herbicides applied in preemergence and postemergence of C.spectabilisfor different purposes (control of volunteer and selectivity plants). Three experiments were installed in a greenhouse (two with herbicides applied in preemergence - in soils with distinct textural categories; and one experiment...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Selectivity; Control of volunteer plants; Crop rotation; Crotalaria spectabilis.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000300521

Carryover effect of fomesafen, applied on edible bean, on sucessional maize
Provedor de dados: 87
Autores: Cobucci,Tarcísio; Silva,.João B.; Prates,Hélio T.
Carryove reffects of fomesafen on successional maize were studied in clay soil. Fomesafen was applied as postemergence at Five rate s (0; 0.12 5: 0.25 ; 0.37 5, and 0.5 kg/ha-1) to edible beans. Maize was planted 198 and 65 days after fomesafen application in 1992 and 212 and 65 days after fomesafen application in 1993. Fomesafen residues were detected in soils up to 20cm depth but residue concentration was higher in 0-10 cm soil depth. Fomesafen residues reduced leaf chlrophyll content and root volume of 10 days old maize when planted 65 days after application but were not affected when planted 212 days after application. However, the decreases in leaf chlorophyll and root volume did not affect the maize yield.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diphenyl ether herbicide; Herbicide persistence; Crop rotation; Phaseolus vulgaris; Zea mays.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581997000200011

Phytosociology in agricultural areas submitted to distinct wintercropping management
Provedor de dados: 87
Autores: Concenço,G.; Ceccon,G.; Sereia,R.C.; Correia,I.V.T.; Galon,L.
Studies related to weed dynamics are essential for agricultural sustainability in tropical soils, as their interference can cause significant yield losses, especially in crops with lower competitive ability. This study aimed to assess the composition of weed communities in the third cropping season in areas submitted to distinct wintercroppings for two consecutive years. Evaluations were made in terms of species composition, level of infestation, and severity of occurrence of each weed species in relation to the others within the same area. The wintercropping management systems were: (1) Brachiaria ruziziensis; (2) corn intercropped with B. ruziziensis; (3) corn and (4) cowpea. Plant communities under these wintercrop systems were evaluated in the third...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Weeds; Population dynamics; Allelopathy; Crop rotation; Light quality.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582012000200008

Combinatorial optimisation of a large, constrained simulation model: an application of compressed annealing
Provedor de dados: 31
Autores: Doole,   Graeme J.; Pannell,   David J.
Simulation models are valuable tools in the analysis of complex, highly constrained economic systems unsuitable for solution by mathematical programming. However, model size may hamper the efforts of practitioners to efficiently identify the most valuable configurations. This paper investigates the efficacy of a new metaheuristic procedure, compressed annealing, for the solution of large, constrained systems. This algorithm is used to investigate the value of incorporating a sown annual pasture, French serradella (Ornithopus sativa Brot. cv. Cadiz), between extended cropping sequences in the central wheat belt of Western Australia. Compressed annealing is shown to be a reliable means of considering constraints in complex optimisation problems in...
Tipo: Conference Paper or Presentation
Palavras-chave: Combinatorial optimisation; Crop rotation; Simulated annealing; Research Methods/ Statistical Methods; C63; Q15.
Ano: 2007
URL: http://purl.umn.edu/10438

Market Impacts of Adopting Herbicide-Resistant Rice in the Southern United States
Provedor de dados: 31
Autores: Fuller,   Frank H.; Annou,   Mamane Malam; Wailes,   Eric J.
Herbicide-resistant (HR) rice varieties offer U.S. rice producers a powerful tool for control of red rice infestations.  However, improved weed control can shorten crop rotations and boost yields, resulting in expanded rice production and lower domestic market prices.  Declining market returns diminish the benefits of HR rice adoption and substantially reduce net returns for nonadopters.  More competitive prices increase U.S. rice exports, causing a slight decline in world rice prices.  The dependence of the rice marketing loan program on world prices prevents loan deficiency payments from adequately offsetting producers’ market revenue losses.  U.S. consumers gain from lower rice prices.
Tipo: Journal Article
Palavras-chave: Biotechnology; Crop rotation; Herbicide resistant; Red rice; Rice; Simulation models; Technology adaptation; Q11; Q16; Q18; O33; C53.
Ano: 2003
URL: http://purl.umn.edu/37859

Accounting for agronomic rotations in crop production: A theoretical investigation and an empirical modeling framework
Provedor de dados: 31
Autores: Carpentier,   Alain; Gohin,   Alexandre; Letort,   Elodie.
As far as crop acreage choices are concerned, a consensus seems to exist among agricultural scientists and extension agents: crop rotation effects and the related constraints are major determinants of farmers’ crop choices. Crop rotation effects are inherently dynamic. They are generally ignored in multicrop models with land as an allocable input found in the literature since most of these models are developed within a static framework. The aim of this paper is twofold (i) to propose a new approach and tools for investigating dynamic crop acreage choices accounting for crop rotation benefits and constraints and (ii) to illustrate the impacts of crop rotation effects and constraints on farmers’ acreage choices through simulation examples. The models...
Tipo: Conference Paper or Presentation
Palavras-chave: Crop rotation; Dynamic programming; Acreage choice; Crop Production/Industries; Land Economics/Use; Q12; D21; D24; D92.
Ano: 2011
URL: http://purl.umn.edu/103431

MANAGING PEST RESISTANCE: THE POTENTIAL OF CROP ROTATIONS AND SHREDDING
Provedor de dados: 31
Autores: Babcock,   Bruce A.; Secchi,   Silvia.
The current debate over resistance management plans mandated by the Environmental Protection Agency for transgenic crops ignores management practices that are complementary to refuge schemes.  A dynamic production model is developed that measures the costs and benefits of crop rotation and shredding in terms of delaying resistance to Bt corn.
Tipo: Conference Paper or Presentation
Palavras-chave: Biotechnology; Common property resource; Crop rotation; European Corn Borer; Externalities; Insecticide resistance; Integrated pest management; Intertemporal optimization; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 1999
URL: http://purl.umn.edu/21597

A Dynamic Optimal Crop Rotation Model in Acreage Response
Provedor de dados: 31
Autores: Cai,   Ruohong; Bergstrom,   John C.; Mullen,   Jeffrey D.; Wetzstein,   Michael E.
This paper presents a dynamic crop rotation model that shows how crop yield and price volatility could impact crop mix and acreage response under crop rotation considerations. Specifically, a discrete Markov decision model is utilized to optimize producers’ crop rotation decision within a finite horizon. By maximizing net present value of expected current and future profits, a modified Bellman equation helps develop optimum planting decisions. This model is capable of simulating crop rotations with different lengths and structures. Specifically, the corn-soybeans rotations were simulated using the crop rotation model.
Tipo: Working or Discussion Paper
Palavras-chave: Crop rotation; Acreage response; Bellman equation; Crop Production/Industries; Research Methods/ Statistical Methods.
Ano: 2011
URL: http://purl.umn.edu/103949

Canola-Wheat Rotation versus Continuous Wheat for the Southern Plains
Provedor de dados: 31
Autores: Duke,   Jason C.; Epplin,   Francis M.; Vitale,   Jeffrey D.; Peeper,   Thomas F.
Crop rotations are not common in the wheat belt of the Southern Plains. After years of continuous wheat, weeds have become increasingly difficult and expensive to manage. Yield data were elicited from farmers and used to determine if canola-wheat-wheat rotations are economically competitive with continuous wheat in the region.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop rotation; Wheat; Canola; Elicited yield distributions; Crop Production/Industries; Farm Management; Q10; Q12.
Ano: 2009
URL: http://purl.umn.edu/46620

THE INFLUENCES OF LAND TENANCY AND ROTATION SELECTION ON CRAWFISH FARMERS’ ADOPTION OF BEST MANAGEMENT PRACTICES
Provedor de dados: 31
Autores: Nyaupane,   Narayan P.; Gillespie,   Jeffrey M.
This study investigates factors influencing the adoption of best management practices in Louisiana crawfish production. Probit results show acreage, years farming, portion of income from farming, technology adoption tendencies, hunting leases and a stream running through the farm to influence adoption. The most frequently used BMP was irrigation water management.
Tipo: Conference Paper or Presentation
Palavras-chave: Best Management Practices (BMPs); Technology adoption; Crawfish; Probit; Tenancy; Crop rotation; Production Economics.
Ano: 2008
URL: http://purl.umn.edu/46174

Assessing the Effects of Climate Change on Farm Production and Profitability: Dynamic Simulation Approach
Provedor de dados: 31
Autores: Cai,   Ruohong; Bergstrom,   John C.; Mullen,   Jeffrey D.; Wetzstein,   Michael E.
In this paper, a dynamic optimization model was developed to simulate how farm-level realized price and profitability respond to yield change which was induced by climate change. Producers' acreage response was included in the dynamic model considering crop rotation effect. In the crop rotation model, a modified Bellman equation was used to dynamically optimize the net present value of farm profit for a five-year interval. This simulation process was repeated through the year 2050. Then yield, price, and acreage response were compiled to generate realized profit. Results generally indicated that reduction in crop yields due to climate change results in reduced farm profitability for most of the states studied. Predicted climate change is more likely to...
Tipo: Conference Paper or Presentation
Palavras-chave: Dynamic simulation model; Acreage response; Crop rotation; Expected price; Realized price; Agricultural Finance; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Production Economics; Productivity Analysis; Risk and Uncertainty.
Ano: 2011
URL: http://purl.umn.edu/103420

The Dynamics of Farm Land Allocation - Short and Long Run Reactions in Long Micro Panel
Provedor de dados: 31
Autores: Arnberg,   Soren; Hansen,   Lars Garn.
This study develops a dynamic multi-output model of farmers’ crop allocation decisions that allows estimation of both short-run and long-run adjustments to a wide array of economic incentives.  The method can be used to inform decision makers on a number of issues including agricultural policy reform and environmental regulation.  The model allows estimation of dynamic effects relating to price expectations adjustment, investment lags, and crop rotation constraints.  Estimation is based on micro-panel data from Danish farmers that includes acreage, output, and variable input utilization at the crop level.  Results indicate that there are substantial differences between the short- and long-run land allocation behavior of Danish farmers and that there are...
Tipo: Conference Paper or Presentation
Palavras-chave: Land allocation; Crop rotation; System of dynamic equations; Micro panel data; GMM; Land Economics/Use; C33; Q12; Q15.
Ano: 2007
URL: http://purl.umn.edu/9978

A STOCHASTIC DOMINANCE ANALYSIS OF ALTERNATIVE SUGAR BEET- AND NAVY BEAN- BASED CROP ROTATIONS IN MICHIGAN
Provedor de dados: 31
Autores: Gebremedhin,   Berhanu; Schwab,   Gerald; Harwood,   Richard R.; Christenson,   Donald; Bricker,   Calvin.
Sugar beets (Beta vulgaris L.) and navy beans (Phaseoulus vulgaris L.) have been important target crops in the crop rotation systems of many Michigan growers, particularly in the Saginaw Valley and the Thumb region.  The recent decline in sugar beet yields combined with the erratic navy bean yields have led to concern about the optimal crop rotation for the East Central region in Michigan.  Risk is an important consideration in a farmer's choice of cropping systems.  This study uses 20 years of experimental data from the Michigan State University Saginaw Valley Research Farm to determine the risk efficiency of alternative sugar beet- and navy bean- based crop rotations that included corn (Zea mays L.), oats (Avena sativa L.), and alfalfa (Medicago sativa...
Tipo: Working or Discussion Paper
Palavras-chave: Crop rotation; Cropping system; Risk; Stochastic dominance analysis; First-degree stochastic dominance; Second-degree stochastic dominance.; Crop Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/11509

The persistence of drought impacts across growing seasons: a dynamic stochastic analysis
Provedor de dados: 31
Autores: Peck,   Dannele E.; Adams,   Richard M.
Agricultural producers throughout much of the United States experienced one of the most severe droughts in the last 100 years during the years 1999-2006.  The prolonged nature of this drought highlights a need to better understand the impacts and management of drought across growing seasons, rather than just within a growing season.  Producers express specific concern about the tendency of drought impacts to persist even after drought itself has subsided.  The persistence of drought impacts has received limited attention in the economics literature.  The objectives of this study are two-fold: 1) to determine whether inter-year dynamics, in the form of agronomic constraints and financial flows, can cause persistence of a drought's impact in years subsequent...
Tipo: Conference Paper or Presentation
Palavras-chave: Drought; Preparedness; Response; Uncertainty; Dynamics; Discrete stochastic programming; Agriculture; Irrigation; Eastern Oregon; Row crops; Crop rotation; Crop Production/Industries; Risk and Uncertainty.
Ano: 2007
URL: http://purl.umn.edu/9253

Evaluation of EPIC for Three Minnesota Cropping Systems
Provedor de dados: 31
Autores: Chung,   S.W.; Gassman,   Philip W.; Huggins,   David R.; Randall,   G.W.
The Erosion Productivity Impact Calculator (EPIC) model was tested using four years of field data collected at a site near Lamberton, Minnesota, under three different crop rotations: continuous corn (Zea mays L.) or CC, soybean (Glycine max L.)-corn (SC), continuous alfalfa (Medicago sativa L.) or CA. The model was evaluated by comparing measured versus predicted subsurface drainage flow (tile flow), nitrate-nitrogen (NO3-N) loss in tile flow, residual NO3-N in the soil profile, crop N uptake, and yield. Initially, EPIC was run using standard Soil Conservation Service (SCS) runoff curve numbers (CN2) suggested for the soil type at the site. Two different SC runs were performed with a nitrogen fixation parameter denoted as parm(7) set at either 1.0 or 0.3,...
Tipo: Working or Discussion Paper
Palavras-chave: Modeling; Water quality; Crop rotation; Tile drainage; Nitrate leaching; Fertilizer; Crop Production/Industries.
Ano: 2000
URL: http://purl.umn.edu/18479

Physical properties of an Alfisol and no-till soybean yield
Provedor de dados: 90
Autores: Tavares Filho,João; Guimarães,Maria de Fátima; Curmi,Pierre; Tessier,Daniel.
It is known that any kind of soil management causes changes in the soil physical characteristics and can affect agricultural yield. The purpose of this study was to evaluate soil properties of an Alfisol and soybean yield under different management systems for no-tillage annual crops, no-tillage with chiseling and no-tillage crop rotation. The 11-year experiment was initiated in the 1998/99 growing season, on 100 x 30 m plots (11 % slope). Soil samples (5 per management system) were systematically collected (0-25 cm layer) in the summer growing season, to quantify soil organic matter, bulk density, macroporosity and flocculation, as well as soybean yield. The highest values for soil bulk density and organic matter content and the lowest for macroporosity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: No tillage; Soil physical properties; Organic matter; Crop rotation.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000100026

Physical properties of a humic cambisol under tillage and cropping systems after twelve years
Provedor de dados: 90
Autores: Andrade,Andréia Patrícia; Mafra,Álvaro Luiz; Baldo,Gizele Rejane; Piccolla,Cristiano Dela; Bertol,Ildegardis; Albuquerque,Jackson Adriano.
Soil is the basis underlying the food production chain and it is fundamental to improve and conserve its productive capacity. Imbalanced exploitation can degrade agricultural areas physical, chemical and biologically. The objective of this study was to evaluate some soil physical properties and their relation with organic carbon contents of a Humic Dystrudept under conventional tillage (CT) and no-tillage (NT), for 12 years in rotation (r) and succession (s) cropping systems. The experiment was carried out in Lages, SC (latitude 27 º 49 ' S and longitude 50 º 20 ' W, 937 m asl), using crop sequences of bean-fallow-maize-fallow-soybean in conventional tillage rotation; maize-fallow in conventional tillage succession; bean-oat-maize-turnip-soybean-vetch in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop rotation; Crop succession; No-tillage; Soil management.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000100022

Crop response to organic fertilization with supplementary mineral nitrogen
Provedor de dados: 90
Autores: Ciancio,Nathalia Riveros; Ceretta,Carlos Alberto; Lourenzi,Cledimar Rogério; Ferreira,Paulo Ademar Avelar; Trentin,Gustavo; Lorensini,Felipe; Tiecher,Tadeu Luis; De Conti,Lessandro; Girotto,Eduardo; Brunetto,Gustavo.
Animal manure is applied to the soil as a nutrient source, especially of nitrogen, to plants. However, manure application rates can be reduced with the use of N fertilizer in topdressing. The aim of this study was to evaluate crop responses to different application rates of animal manure sources, used alone and supplemented with mineral N topdressing, in a no-tillage system. The study was carried out from 2005 to 2008 on a Hapludalf soil. The treatments consisted of rates of 10, 20 and 30 m³ ha-1 of pig slurry (PS), and of 1 and 2 t ha-1 of turkey manure (TM), applied alone and supplemented with topdressed N fertilizer (TNF), as well as two controls, mineral fertilization (NPK) and one control without fertilizer application. Grain yield in common bean and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal manure; Crop rotation; No-tillage cropping system.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000300023

Congo grass grown in rotation with soybean affects phosphorus bound to soil carbon
Provedor de dados: 90
Autores: Merlin,Alexandre; He,Zhenli L.; Rosolem,Ciro Antonio.
The phosphorus supply to crops in tropical soils is deficient due to its somewhat insoluble nature in soil, and addition of P fertilizers has been necessary to achieve high yields. The objective of this study was to examine the mechanisms through which a cover crop (Congo grass - Brachiaria ruziziensis) in rotation with soybean can enhance soil and fertilizer P availability using long-term field trials and laboratory chemical fractionation approaches. The experimental field had been cropped to soybean in rotation with several species under no-till for six years. An application rate of no P or 240 kg ha-1 of P2O5 had been applied as triple superphosphate or as Arad rock phosphate. In April 2009, once more 0.0 or 80.0 kg ha-1 of P2O5 was applied to the same...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop rotation; No-till; Organic P; Phosphorus fractionation.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000300020

Effect of cropping systems in no-till farming on the quality of a Brazilian Oxisol
Provedor de dados: 90
Autores: Seben Junior,Getulio de Freitas; Corá,José Eduardo; Lal,Rattan.
The no-till system with complex cropping sequences may improve the structural quality and carbon (C) sequestration in soils of the tropics. Thus, the objective of this study was to evaluate the effects of cropping sequences after eight years under the no-till system on the physical properties and C sequestration in an Oxisol in the municipality of Jaboticabal, Sao Paulo, Brazil. A randomized split-block design with three replications was used. The treatments were combinations of three summer cropping sequences - corn/corn (Zea mays L.) (CC), soybean/soybean (Glycine max L. Merryll) (SS), and soybean-corn (SC); and seven winter crops - corn, sunflower (Helianthus annuus L.), oilseed radish (Raphanus sativus L.), pearl millet (Pennisetum americanum (L.)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Crop rotation; Winter crops; Soil aggregates; Least limiting water range; Bulk density.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400023

Physical properties and particle-size fractions of soil organic matter in crop-livestock integration
Provedor de dados: 90
Autores: Tirloni,Carolina; Vitorino,Antonio Carlos Tadeu; Bergamin,Anderson Cristian; Souza,Luiz Carlos Ferreira de.
Crop-livestock integration represents an interesting alternative of soil management, especially in regions where the maintenance of cover crops in no-tillage systems is difficult. The objective of this study was to evaluate soil physical and chemical properties, based on the hypothesis that a well-managed crop-livestock integration system improves the soil quality and stabilizes the system. The experiment was set up in a completely randomized design, with five replications. The treatments were arranged in a 6 x 4 factorial design, to assess five crop rotation systems in crop-livestock integration, and native forest as reference of soil undisturbed by agriculture, in four layers (0.0-0.05; 0.05-0.10; 0.10-0.15 and 0.15-0.20 m). The crop rotation systems in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop rotation; No-tillage system; Soil quality; Soil carbon; Aggregate stability.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000400024

Crop sequences in no-tillage system: effects on soil fertility and soybean, maize and rice yield
Provedor de dados: 90
Autores: Marcelo,Adolfo Valente; Corá,José Eduardo; Fernandes,Carolina; Martins,Márcio dos Reis; Jorge,Ricardo Falqueto.
Decomposing crop residues in no-tillage system can alter soil chemical properties, which may consequently influence the productivity of succession crops. The objective of this study was to evaluate soil chemical properties and soybean, maize and rice yield, grown in the summer, after winter crops in a no-tillage system. The experiment was carried out in Jaboticabal, SP, Brazil (21 ° 15 ' 22 '' S; 48 ° 18 ' 58 '' W) on a Red Latosol (Oxisol), in a completely randomized block design, in strip plots with three replications. The treatments consisted of four summer crop sequences (maize monocrop, soybean monocrop, soybean/maize rotation and rice/bean/cotton rotation) combined with seven winter crops (maize, sunflower, oilseed radish, pearl millet, pigeon pea,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Winter crops; Crop rotation; Cover crops; Soil management.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000200019

Postharvest nitrous oxide emissions from a subtropical oxisol as influenced by summer crop residues and their management
Provedor de dados: 90
Autores: Escobar,Luisa Fernanda; Amado,Telmo Jorge Carneiro; Bayer,Cimélio; Chavez,Luis Fernando; Zanatta,Josiléia Acordi; Fiorin,Jackson Ernani.
Nitrous oxide (N2O) is the most important non-CO2 greenhouse gas and soil management systems should be evaluated for their N2O mitigation potential. This research evaluated a long-term (22 years) experiment testing the effect of soil management systems on N2O emissions in the postharvest period (autumn) from a subtropical Rhodic Hapludox at the research center FUNDACEP, in Cruz Alta, state of Rio Grande do Sul. Three treatments were evaluated, one under conventional tillage with soybean residues (CTsoybean) and two under no-tillage with soybean (NTsoybean) and maize residues (NTmaize). N2O emissions were measured eight times within 24 days (May 2007) using closed static chambers. Gas flows were obtained based on the relations between gas concentrations in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Global warming; Subtropical soils; Greenhouse gases; Soil tillage; Crop rotation.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000200024

Stabilization of soil hydraulic properties under a long term no-till system
Provedor de dados: 90
Autores: Lozano,Luis Alberto; Germán Soracco,Carlos; Buda,Vicente S.; Sarli,Guillermo O.; Filgueira,Roberto Raúl.
The area under the no-tillage system (NT) has been increasing over the last few years. Some authors indicate that stabilization of soil physical properties is reached after some years under NT while other authors debate this. The objective of this study was to determine the effect of the last crop in the rotation sequence (1st year: maize, 2nd year: soybean, 3rd year: wheat/soybean) on soil pore configuration and hydraulic properties in two different soils (site 1: loam, site 2: sandy loam) from the Argentinean Pampas region under long-term NT treatments in order to determine if stabilization of soil physical properties is reached apart from a specific time in the crop sequence. In addition, we compared two procedures for evaluating water-conducting...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infiltration; Crop rotation; Water-conducting porosity; No tillage; Texture.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400024

Pig slurry and nutrient accumulation and dry matter and grain yield in various crops
Provedor de dados: 90
Autores: Lourenzi,Cledimar Rogério; Ceretta,Carlos Alberto; Brunetto,Gustavo; Girotto,Eduardo; Tiecher,Tadeu Luis; Vieira,Renan Costa Beber; Cancian,Adriana; Ferreira,Paulo Ademar Avelar.
Pig slurry (PS) represents an important nutrient source for plants and using it as fertilizer makes greater nutrient cycling in the environment possible. The aim of this study was to assess how PS application over a period of years can affect grain yield, dry matter production and nutrient accumulation in commercial grain and cover crops. The experiment was carried out in an experimental area of the Universidade Federal de Santa Maria, in Santa Maria, RS, Brazil, from May 2000 to January 2008. In this period, 19 grain and cover crops were grown with PS application before sowing, at rates of 0, 20, 40 and 80 m³ ha-1. The highest PS rate led to an increase in nutrient availability over the years, notably of P, but also of nutrients that are potentially toxic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Manure; Yield; Crop rotation.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000300027

Least limiting water range in soil under crop rotations and chiseling
Provedor de dados: 90
Autores: Calonego,Juliano Carlos; Rosolem,Ciro Antonio.
Soil water availability to plants is affected by soil compaction and other variables. The Least Limiting Water Range (LLWR) comprises soil physical variables affecting root growth and soil water availability, and can be managed by either mechanical or biological methods. There is evidence that effects of crop rotations could last longer than chiseling, so the objective of this study was to assess the effect of soil chiseling or growing cover crops under no-till (NT) on the LLWR. Crop rotations involving triticale (X Triticosecale) and sunflower (Helianthus annuus) in the fall-winter associated with millet (Pennisetum glaucum), sorghum (Sorghum bicolor) and sunn hemp (Crotalaria juncea) as cover crops preceding soybean (Glycine max) were repeated for three...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cover crops; Crop rotation; Soil compaction; No till; Soil water.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000300012

Inter-relation between soybean yield and soil compaction under degraded pasture in Brazilian Savannah
Provedor de dados: 90
Autores: Queiroz,Rienni de Paula; Lazarini,Edson; Santos,Marcio Lustosa; Carvalho,Morel de Passos e; Santos,Cristiano.
The Cerrado (Brazilian Savannah) plays an important economic and financial role in the nation, since the pastures of this biome feed cattle for half of the domestic bovine meat productivity, and its agricultural fields produce a third of the country's grain. The variability and spatial dependence between the soil physical attributes and soybean yield were evaluated in a crop rotation planted on a degraded brachiaria pasture, on a dystroferric Red Latosol of an experimental farm of the State University of São Paulo (UNESP), in the 2005/2006 growing season. The linear and spatial correlations between these attributes were also studied, to determine conditions that would allow increased agricultural productivity. In the above pasture area, a grid was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil conservation; Crop rotation; Pasture management; Glycine max (L.) Merrill; Spatial variability.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000500012

No-tillage system participatory quality index
Provedor de dados: 91
Autores: Telles,Tiago S.; Righetto,Ana J.; Lourenço,Marco A. P.; Barbosa,Graziela M. C.
ABSTRACT The no-tillage system participatory quality index aims to evaluate the quality and efficiency of soil management under no-tillage systems and consists of a weighted sum of eight indicators: intensity of crop rotation, diversity of crop rotation, persistence of crop residues in the soil surface, frequency of soil tillage, use of agricultural terraces, evaluation of soil conservation, balance of soil fertilization and time of adoption of the no-tillage system. The aim of this study was to assess the extent to which these indicators correlate with the no-tillage system participatory quality index and to characterize the farmers who participated in the research. The data used were provided by ITAIPU Binacional for the indicators of the no-tillage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Farmers; Conservation agriculture; Crop rotation; Soil and water conservation; Sustainable agriculture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000200128

Carbon stocks of an Oxisol after thirty-eight years under different tillage systems
Provedor de dados: 91
Autores: Magalhaes,Sulamirtes S. de A.; Ramos,Fabricio T.; Weber,Oscarlina L. dos S.
ABSTRACT Soil carbon (C) stock determination can subsidize discussions on the continuity of an agricultural management. This study aimed to evaluate the stocks of total organic C (STOC) and labile C (SLC), and the indices of C lability (CLI), C compartment (CCI) and C management (CMI), and correlate them with chemical and physical attributes of a Red Yellow Latosol (Oxisol) managed for 38 years with different tillage systems in a Cerrado region of Mato Grosso, Brazil. Disturbed and undisturbed soil samples were collected in three layers (0-0.05, 0.05-0.10 and 0.10-0.20 m). The CMI (CLI x CCI) showed higher STOC possibly as the tillage depth decreased, because none of the tillage systems conserved STOC and SLC in the layers of 0-0.05 and 0.05-0.10 m,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil conservation; Crop rotation; Soil organic matter.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000100085

Impact of pig slurry application on soil and water losses: Comparison with a historical series
Provedor de dados: 91
Autores: Bandeira,Douglas H.; Bertol,Ildegardis; Vázquez,Eva V.; Ramos,Júlio C.; Bertol,Camilo.
ABSTRACT Water erosion in soil is influenced by several factors, including rain, relief, cover, and management and conservation practices. Also, erosion is affected by pig slurry (PS) applied to the soil as a fertilizer. The objectives of this research were i): to evaluate water erosion in a Humic Cambisol cultivated with Zea mays L., Avena strigosa, Glycyne max L., and Raphanus sativus in rotation after PS dispersal under different tillage treatments, namely: no-tillage (NT), minimum tillage (MT), rotation tillage (RT) and conventional tillage (CT) , and ii): to compare erosion before and after PS application in a single dose of 50 m3 ha-1 in each crop, soon after the germination of the crops. NT had lower soil and water loss, which were reduced by 81 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation tillage; Erosivity; Crop rotation; Organic fertilization.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000600425

Grain yield of corn at different population densities and intercropped with forages
Provedor de dados: 91
Autores: Nascimento,José M. do; Furlani,Carlos E. A.; Chioderoli,Carlos A.; Queiroz,Renata F. de; Bertonha,Rafael S.; Cavichioli,Fabio A.
ABSTRACT The no-tillage system optimizes agricultural areas, maintaining the supply of straw and promoting crop rotation and soil conservation. The aim of the present study was to evaluate sowing quality and grain yield of corn intercropped with three forage species of the Urochloa genus associated with two corn population densities. The experiment was conducted at the São Paulo State University (UNESP), in Jaboticabal-SP, Brazil. The experimental design was randomized blocks in a 2 x 3 factorial scheme with four replicates. The treatments consisted of two corn densities (55,000 and 75,000 plants ha-1) intercropped with three forages (Urochloa brizantha, Urochloa decumbens and Urochloa ruziziensis) sown between rows of corn in the V4 stage. The following...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: No-tillage system; Crop-livestock integration; Crop rotation.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015001201143

Soil compaction in areas of maize used for silage with the application of wastewater
Provedor de dados: 124
Autores: Melo,Dirceu de; Nóbrega,Lúcia Helena Pereira; Maggi,Marcio Furlan; Gnoatto,Estor; Marchetti,Ivair.
ABSTRACT The mechanical resistance of the soil to penetration (RP) was evaluated over two consecutive years in areas where off-season maize is produced for silage. Removal of the aerial part of the maize during the ensiling process leaves the soil exposed and subject to compaction, which may compromise a no-till system (NTS). The aim of this study therefore, was to monitor the RP of a soil under plant cover associated with the application of wastewater from pig farming (WPF) in areas of maize ensiling under NTS. The study was conducted in Matelândia, in the State of Paraná, employing seven management systems: soybean/silage/oats and turnip (SSOT); soybean/oats and turnip (SOT); soybean/silage/scarification + oats and turnip (SSSOT); soybean/silage and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mechanical resistance of the soil to penetration; Crop rotation; Systems of soil management.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000200205

Economic evaluation of cereal cropping systems under semiarid conditions: minimum input, organic and conventional
Provedor de dados: 63
Autores: Pardo,Gabriel; Aibar,Joaquín; Cavero,José; Zaragoza,Carlos.
Cropping systems like organic farming, selling products at a higher price and promoting environmental sustainability by reducing fertilizer and pesticides, can be more profitable than conventional systems. An economic evaluation of three cropping systems in a seven year period experiment was performed, using a common rotation (fallow-barley-vetch-durum wheat) in a semi-arid rainfed field of Spain. The minimum input system included mouldboard ploughing, cultivator preparation, sowing and harvest. The conventional system involved mineral fertilizer and herbicide treatments, while the organic system involved composted manure and mechanical weed control. The resulting economic margins were highest with the minimum input system, followed by the organic and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Profitability; Organic agriculture; Crop rotation.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000500005

Soil phosphorus dynamics as affected by Congo grass and P fertilizer
Provedor de dados: 63
Autores: Rosolem,Ciro Antonio; Merlin,Alexandre; Bull,Júlio Cesar Longo.
Some plant species can change soil phosphorus (P) availability and this may be an important tool in managing tropical high fixing phosphorus soils. An experiment was conducted to evaluate phosphorus transformations in the soil and phosphatase activity during periods of Congo grass (Brachiaria ruziziensis, Germain et Evrard) growth in two tropical soils receiving 20, 40, 80, 160 mg dm-3 of inorganic P. Plants were grown for 84 days in 8-L pots. Acid phosphatase activity, P in the microbial mass, soil organic and inorganic P and P accumulation by Congo grass were evaluated. Phosphorus fertilization increased soil P availability, Congo grass yields and P accumulation in the plant. On average, less labile P forms in the soil were not changed by Congo grass;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phosphatase; Soil fertility; Crop rotation; Brachiaria.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000400008

Progress report on applied experiments
Provedor de dados: 106
Autores: Sakamoto, Haruhiko; Somrak Noradechanon.
7 ill., 9 tables
Palavras-chave: Corn; Maize; Sorghum; Intensive irrigation; Seed storage; Seed germination; Fertilizers; Plant population; Varieties; Crop rotation; Reddish brown lateritic; Yields; Agronomic characters; ข้าวโพด; ข้าวฟ่าง; การให้น้ำ; การทดสอบผลผลิต; การผลิต.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4112

ประชากรแมลงพาหะ (Matsumuratettix hiroglyphicus (Matsumura)) และการเกิดโรคใบขาวอ้อยในระบบการปลูกข้าวไร่สลับกับอ้อย และระบบปลูกอ้อยเชิงเดี่ยว
Provedor de dados: 106
Autores: Itsarapong Voraphab; Yupa Hanboonsong.
Tipo: PhysicalObject
Palavras-chave: Leafhopper; Matsumuratettix hiroglyphicus; Insect vectors; Phytoplasma; Sugarcane white leaf disease; Mono cropping; Crop rotation; Disease epidemiology; เพลี้ยจักจั่น; แมลงพาหะนำโรค; โรคใบขาวอ้อย; เชื้อไฟโตพลาสมา; การสำรวจแมลงพาหะ; อ้อย; ข้าวไร่; ระบบการปลูกพืช; การปลูกพืชเชิงเดี่ยว; การปลูกพืชหมุนเวียน; การระบาดของโรคพืช.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5831

ผลของการปลูกพืชหมุนเวียนต่อความอุดมสมบูรณ์ของดินและผลผลิตข้าวนาขั้นบันได
Provedor de dados: 106
Autores: Suttakarn Jaikawin; Pitchanan Kanghair; Apiwat Hantanapong; Silawan Chantharabut.
Problem of low soil fertility is one reason of low yield in rice terraces because of the soil was less clay mineral content, less total soil density, soil acidity and low soil nutrients are not sufficient for the growth of rice. The crop rotation is one approach to solving this problem. The experiment aims to study the effect of crop rotation on soil fertility and yield in rice terraces. This experiment was conducted the main crop is rice cv. Sew Mae Jan and the experimental design was randomize complete block design with 4replications and4 treatments: 1) rice-lablab bean rotation 2) rice-wheat rotation 3) rice- cabbage rotation 4) rice (check). The results revealed that the crop rotation 4 treatments had not difference of soil fertility between before and...
Tipo: PhysicalObject
Palavras-chave: Rice; Rice terraces; Rice production; Crop rotation; Soil fertility; Increase productivity; ข้าว; นาขั้นบันได; การผลิตข้าว; การปลูกพืชหมุนเวียน; ถั่วแปยี; ข้าวสาลี; กะหล่ำปลี; ความอุดมสมบูรณ์ของดิน; การเพิ่มผลผลิต.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5664

Influence of sulphur in crop rotation pattern (Maize-Mungbean)
Provedor de dados: 106
Autores: Pradit Boonampol; Wiroj Wajananawat.
7 tables
Palavras-chave: Corn; Maize; Mungbeans; Cropping systems; Sulphur; Crop rotation; ข้าวโพด; ถั่วเขียว; การปลูกพืชหมุนเวียน; กำมะถัน.
Ano: 1989
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4360

Performance of fall and winter crops in a no tillage system in west Paraná State
Provedor de dados: 1
Autores: Albrecht, Leandro Paiola; Krenchinski, Fábio Henrique; Gomes, Alcides de Oliveira; Albrecht, Alfredo Junior Paiola; Mattiuzzi, Mateus Dalpubel; Cassol, Marcelo.
The long-term exploitation of natural resources by agricultural activities has resulted in the need for alternative measures to restore degraded soil. The cultivation of cover crops can generate great benefits for agricultural systems, enabling the exploitation of natural resources, including water, light and nutrients, as well as the recovery of degraded soils. This work aimed to assess the coverage rate, fresh mass and dry mass of cover crops from fall and winter as well as the floristic composition of the weeds. The work was conducted in field conditions in soil classified as eutroferric Red Oxisol in the region of the city of Palotina, Paraná State, Brazil, using a random block experimental design with four replications. The treatments consisted of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.01.03.01-6 natural resources; Crop rotation; Weeds. Manejo e Tratos Culturais.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/34999

Sistemas de cultivo e uso de diferentes adubos na produção de silagem e grãos de milho - doi: 10.4025/actasciagron.v33i1.766
Provedor de dados: 1
Autores: Castoldi, Gustavo; FCA/UNESP; Costa, Mônica Sarolli Silva de Mendonça; UNIOESTE; Costa, Luiz Antonio de Mendonça; UNIOESTE; Pivetta, Laércio Augusto; FCA/UNESP; Steiner, Fábio; FCA/UNESP.
O presente trabalho teve por objetivo avaliar o desempenho do milho para produção de silagem e grãos, cultivado em diferentes sistemas e adubações. O delineamento experimental adotado foi de blocos inteiramente casualizados, em esquema fatorial 2 x 3, composto por dois sistemas de cultivo (sucessão e rotação de culturas) e três fontes de adubação (orgânica, mineral e organomineral), com quatro repetições. Para produção de silagem de planta inteira, os sistemas e as adubações não diferiram estatisticamente entre si (p &lt; 0,05). Para produção de silagem de grão úmido, o sistema em sucessão e a adubação mineral mostraram-se superiores aos demais, produzindo 10.823 e 10.815 kg ha-1, respectivamente, não incrementando, contudo, qualidade à silagem. Já na...
Palavras-chave: 5.01.03.00-8 sistema plantio direto; Rotação de culturas; Adubação orgânica FITOTECNIA no-tillage; Crop rotation; Organic fertilization.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/766

Performance of fall and winter crops in a no tillage system in west Paraná State
Provedor de dados: 1
Autores: Albrecht, Leandro Paiola; Krenchinski, Fábio Henrique; Gomes, Alcides de Oliveira; Albrecht, Alfredo Junior Paiola; Mattiuzzi, Mateus Dalpubel; Cassol, Marcelo.
The long-term exploitation of natural resources by agricultural activities has resulted in the need for alternative measures to restore degraded soil. The cultivation of cover crops can generate great benefits for agricultural systems, enabling the exploitation of natural resources, including water, light and nutrients, as well as the recovery of degraded soils. This work aimed to assess the coverage rate, fresh mass and dry mass of cover crops from fall and winter as well as the floristic composition of the weeds. The work was conducted in field conditions in soil classified as eutroferric Red Oxisol in the region of the city of Palotina, Paraná State, Brazil, using a random block experimental design with four replications. The treatments consisted of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Natural resources; Crop rotation; Weeds.; Manejo e Tratos Culturais.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/34999

Soil conservation practices in a watershed in Southern Brazil
Provedor de dados: 42
Autores: TELLES,TIAGO S.; LOURENÇO,MARCO A.P.; OLIVEIRA,JOSÉ F.; COSTA,GUSTAVO V.; BARBOSA,GRAZIELA M.C.
Abstract: The aim of this study was to determine how often rural farmers in a watershed use no-tillage systems combined with crop rotation, contour farming and agricultural terraces. The study area was Paraná Watershed III (PB3) in the western region of Paraná State, and data from the 2006 Agricultural Census of the Brazilian Institute of Geography and Statistics were used. A frequency distribution analysis of farms as a function of the no-tillage (NT) area was conducted in combination with a cluster analysis of soil and water conservation practices (adoption of crop rotation, contour farming and agricultural terrace practices). The results showed that the farms in PB3 adopt adequate soil and water conservation practices, with 73% adopting NT combined with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Contour farming; Agricultural terraces; Crop rotation; Conservation agriculture.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500866

Yield response to fertilization strategies in no-tillage soybean, corn and common bean crops
Provedor de dados: 52
Autores: Pauletti,Volnei; Serrat,Beatriz Monte; Motta,Antonio Carlos Vargas; Favaretto,Nerilde; Anjos,Adilson dos.
Two research fields were conducted on a Haplohumox from 1998 and to 2005. The study aimed to evaluate the strategies for starter fertilizer application on corn, soybean and common bean yield as well as the accumulation of earlier dry matter for corn in a no-tillage crop rotation system in south of Brazil. There was no increase in the yield of soybean with phosphorus and potassium application for at least seven seasons, while corn and common bean showed increased yields with phosphorus, potassium and nitrogen application. For soybean, corn and common beans in no-tillage systems with high levels of phosphorus and medium of potassium, the starter fertilizer can be applied in any of the methods evaluated and in any of the period considered. The presence or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Starter fertilizer; Application technique; Fertilizer management; Crop rotation; No-till.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000300009

Monitoring and evaluation of need for nitrogen fertilizer topdressing for maize leaf chlorophyll readings and the relationship with grain yield
Provedor de dados: 52
Autores: Silva,Maria Anita Gonçalves da; Muniz,Antonio Saraiva; Mannigel,Anny Rosi; Porto,Simone Maria Altoé; Marchetti,Marlene Estevão; Nolla,Antonio; Grannemann,Ivan.
The study was carried out for two years in maize in succession to the wheat using no tillage system in a distroferric Red Latosol (Hapludox). Methods of management nitrogen fertilizer (120 kg ha-1) with ammonium sulphate were studied; the fertilizer was applied in maize sowing or in maize topdressing, and N with previous application in wheat sowing. In addition, leaf chlorophyll reading was used as an indicator for the need for topdressed nitrogen fertilizer. Nitrogen supply index (NSI) was shown to be effective at predicting need for topdressed nitrogen fertilizer for maize. The application of N improved the yield of the maize independent of the management system. The flowering stage was carried out at the appropriate time in order to estimate the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen fertilized; Leaf chlorophyll; Crop rotation; No till; Zea mays; Triticum aestivum.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400004

Soil enzyme activities under long-term tillage and crop rotation systems in subtropical agro-ecosystems
Provedor de dados: 58
Autores: Balota,Elcio Liborio; Kanashiro,Miriam; Colozzi Filho,Arnaldo; Andrade,Diva Souza; Dick,Richard Peter.
Agricultural practices that reduce soil degradation and improve agricultural sustainability are needed particularly for tropical/subtropical soils. No-tillage planting causes minimal soil disturbance and combined with crop rotation may hold potential to meet these goals. Soil enzyme activities can provide information on how soil management is affecting the potential to perform the processes in soils such as decomposition and nutrient cycling. Soil enzyme activities were investigated in a split-plot experiment (3 replications) where tillage (no till and conventional) was the main plot and crop rotation (soybean/wheat, S/W; maize/wheat, M/W or cotton/wheat, C/W) was the subplot. The experiment was established in 1976 in southern Brazil. Soil samples were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enzyme activities; Tillage systems; Crop rotation; Soil management; Soil quality.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000300006

Organic Versus Conventional Methods of Fertilization and Weed Control in a Long Term Rotation of Cereals in Semiarid Spain
Provedor de dados: 117
Autores: Pardo,Gabriel; Aibar,Joaquín; Ciria,Pilar; Lacasta,Carlos; Lezaún,Juan Antonio; Zaragoza,Carlos.
Under semiarid conditions the response of cereal crops to chemical fertilizers and weed control practices with herbicides is often reduced. In fact, the economic profitability of agricultural production in many dryland regions is critically affected by high costs of inputs and low crop yields. As a solution, cropping systems like organic farming, obtaining similar yields and promoting environmental sustainability by reducing fertilizer and herbicides, could be an alternative to conventional systems. In this study, 23 trials were performed in five semiarid regions of Spain during 5 yr to compare different fertilizers and weed control methods on durum wheat (Triticum durum Desf.) and barley (Hordeum vulgare L.) yields. The following rotation pattern was...
Tipo: Journal article
Palavras-chave: Sustainability; Ecological agriculture; Crop rotation; Compost; Flex-tine harrow.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200002

Chemical properties of volcanic soil affected by seven-year rotations
Provedor de dados: 117
Autores: Hirzel,Juan; Undurraga,Pablo; González,Jorge.
Long-term crop rotation systems can benefit soil chemical-physical properties and crop productivity. The lack of information on the effect of long-term crop rotations on soil chemical-physical properties for volcanic soils in Chile could restrict reaping real benefits, and make it difficult to take agricultural management decisions, which could lead to possible negative consequences on some soil chemical-physical properties and the environment. The development of information associated with the effect on soil chemical-physical properties with respect to long-term rotation systems and their fertilization management contribute to improving agronomic management decisions for these soils. A study was carried out to assess the effect of six rotation systems...
Tipo: Journal article
Palavras-chave: Crop rotation; Andisol; Nutrient management; Soil fertility.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200016

Grazing height targets for Alexandergrass pastures under continuous stocking in integrated crop-livestock system
Provedor de dados: 65
Autores: Soares,André Brugnara; Schmitt,Daniel; Migliorini,Francisco; Assmann,Tangriani Simioni; Assmann,Alceu Luís.
ABSTRACT:  The aim of this experiment was to identify grazing height targets for Alexandergrass pastures under continuous stocking in integrated crop-livestock system (ICLS). For this purpose, twelve pastures were cultivated into an ICLS area, and maintained at 10, 20, 30, or 40 cm using grazing goats. The following variables were analyzed: leaf and herbage mass, accumulation rate, and allowance; leaf:stem ratio; chemical composition of hand-plucked samples; stocking rate; average daily gain and gain per area. The data were submitted to regression and correlation analysis. Significance was set at 5% (P≤0.05). The main results were: i) herbage and leaf lamina mass increased linearly with grazing height, and pastures maintained at 20 cm already presented the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop rotation; Grazing intensity; Goats; Urochloa plantaginea.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100651