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| Registros recuperados: 44 | |
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| GARCIA, R. A.; MACHADO, L. A. Z.. |
| O consórcio de braquiária com crotalária na entressafra é uma alternativa para produção de fitomassa no Sistema Plantio Direto, com aumento na produtividade da soja em sucessão. O experimento foi conduzido na Embrapa Agropecuária Oeste, Dourados, Mato Grosso do Sul. Na entressafra de 2017, 2018 e 2019, foi cultivada Brachiaria solteira ou consorciada com Crotalaria juncea, C. spectabilis ou C. ochroleuca. A soja foi conduzida no verão nas safras 2017/2018 e 2018/2019. Utilizou-se o método da linha intercalar, com espaçamento entrelinhas entre espécies de 45 cm. A gramínea solteira teve espaçamento entrelinhas de 45 cm. A semeadura do consórcio foi em uma única operação, com as sementes de braquiária depositadas na terceira caixa, enquanto as de crotalária... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Cultivo consorciado; Planta de Cobertura; Leguminosa; Gramínea; Brachiaria; Crotalária; Intercropping; Cover crops; Grasses; Soybeans. |
| Ano: 2019 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118531 |
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| MATOS, A. P. de; JUNGHANS, D. T.; PADUA, T. R. P. de. |
| A Embrapa Mandioca e Fruticultura tem obtido diversos avanços nas linhas de pesquisa sobre cultivo de base agroecológica na última década, desenvolvendo sistemas orgânicos de produção para diversas fruteiras, entre elas, o abacaxi. A busca por tecnologias de produção mais sustentáveis no campo tem recebido cada vez mais atenção de instituições de ensino e pesquisa, bem como do setor produtivo, uma vez que a preocupação com o meio ambiente e a procura por alimentos orgânicos são elevados na atualidade. Um dos principais custos para produção de abacaxi nesse sistema de cultivo é o controle de plantas espontâneas principalmente nos primeiros meses após o plantio, que requer grande quantidade de mão de obra, a qual tem se tornado cara em muitas regiões... |
| Tipo: Folhetos |
Palavras-chave: Abacaxi; Agricultura Orgânica; Produção Orgânica; Agricultura Sustentável; Cobertura Vegetal; Vegetação; Pineapples; Organic production; Sustainable agriculture; Cover crops; Vegetation cover. |
| Ano: 2022 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1144534 |
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| GARCIA, R. A.; SILVA, C. A. da. |
| O consórcio de milho com uma leguminosa é uma alternativa para diversificar o sistema de produção. Objetivou-se com este trabalho avaliar a produtividade do milho e a produção de biomassa de Crotalaria juncea, C. ochroleuca e C. spectabilis consorciada com a cultura granífera. O experimento foi conduzido nas entressafras de 2017, 2018 e 2019 na Embrapa Agropecuária Oeste, em Dourados, Mato Grosso do Sul. Utilizou-se o método de linha intercalar. O milho solteiro, a 90 cm, foi utilizado como testemunha. A semeadura dos consórcios foi realizada em uma única operação, com a semente da crotalária depositada na terceira caixa. A produção de fitomassa das crotalárias foi avaliada por ocasião do florescimento do milho e na pré-colheita. A produtividade do milho... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Planta de Cobertura; Leguminosa; Crotalária; Cover crops. |
| Ano: 2019 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118911 |
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| Balbinot Junior,Alvadi Antonio; Veiga,Milton da; Moraes,Anibal de; Pelissari,Adelino; Mafra,Álvaro Luiz; Piccolla,Cristiano Dela. |
| The objective of this work was to evaluate the effect of winter land use on the amount of residual straw, the physical soil properties and grain yields of maize, common bean and soybean summer crops cultivated in succession. The experiment was carried out in the North Plateau of Santa Catarina state, Brazil, from May 2006 to April 2010. Five strategies of land use in winter were evaluated: intercropping with black oat + ryegrass + vetch, without grazing and nitrogen (N) fertilization (intercropping cover); the same intercropping, with grazing and 100 kg ha-1 of N per year topdressing (pasture with N); the same intercropping, with grazing and without nitrogen fertilization (pasture without N); oilseed radish, without grazing and nitrogen fertilization... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Compaction; Cover crops; Crop-livestock integration; No-tillage; Organic carbon. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011001000032 |
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| 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 |
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| Miguel,Andressa Selestina Dalla Côrt São; Pacheco,Leandro Pereira; Carvalho,Ícaro Camargo de; Souza,Edicarlos Damacena de; Feitosa,Priscilla Barros; Petter,Fabiano André. |
| Abstract: The objective of this work was to evaluate the effect of phytomass accumulation, soil cover, and nutrient cycling promoted by cultivation systems with annual and cover crops on the grain yield of soybean sown in succession in the Cerrado, in the state of Mato Grosso, Brazil. The experiment was carried out in a randomized complete block design with nine cultivation systems and four replicates, in two crop seasons. In 2014/2015, forage grasses and legumes were evaluated, besides fallow treatments. In 2015/2016, forage and legume intercropped or not with corn or sunflower and fallow were assessed; the soybean crop was evaluated following cover crops. Phytomass, soil cover, and nutrient cycling provided by cultivation systems, as well as soybean mass... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crotalaria spectabilis; Glycine max; Pennisetum glaucum; Urochloa ruziziensis; Cover crops; Decomposition. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001001119 |
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| Rocha,Omar Cruz; Ramos,Maria Lucrécia Gerosa; Veiga,Adriano Delly; Guerra,Antonio Fernando; Bartholo,Gabriel Ferreira; Rodrigues,Gustavo Costa; Silva,Juliano Escobar da. |
| Abstract The objective of this work was to evaluate the effect of irrigation and of the presence of brachiaria (Urochloa decumbens) between coffee (Coffea arabica) rows on coffee yield and on chemical and hydrophysical attributes of a Typic Haplustox. The study was conducted in the Cerrado region in Planaltina, Brasília, DF, Brazil, in a randomized complete block design, arranged in split-split plots, with four replicates. Water regimes (irrigated or rainfed) were assigned to the main plots, inter-row management systems to the subplots, and soil layers to the sub-subplots. The following soil attributes were determined: total organic carbon, total nitrogen, C/N ratio, carbon and nitrogen stocks, bulk density, aggregate stability, total porosity,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica; Urochloa decumbens; Cover crops; Soil physical quality; Soil porosity; Water availability. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000901476 |
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| Balbinot Junior,Alvadi Antonio; Santos,Julio Cezar Franchini Dos; Debiasi,Henrique; Yokoyama,Anderson Hideo. |
| Abstract: The objective of this work was to evaluate the effect of roots and straw of palisade grass (Urochloa brizantha) and Ruzi grass (U. ruziziensis), used as cover crops in autumn-winter, on soybean performance. Seven treatments were evaluated in a randomized complete block design, with four replicates: fallow, during autumn-winter; straw of U. ruziziensis or U. brizantha 'BRS Piatã', distributed in plots kept under fallow in the winter, without roots; plots only with roots of U. ruziziensis or U. brizantha, without straw; and plots with straw and roots of U. ruziziensis or U. brizantha. The grass species were planted during the 2014/2015 crop season, and treatments were evaluated at the end of the 2015/2016 crop season, without drought during the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Urochloa brizantha; Urochloa ruziziensis; Cover crops; No-tillage.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000800592 |
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| 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 |
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| PETTER,F.A.; SIMA,V.M.; FRAPORTI,M.B.; PEREIRA,C.S.; PROCÓPIO,S.O.; SILVA,A.F.. |
| The present study evaluated the effects of cover crops (Pennisetum glaucum, Crotalaria spectabilis and Urochloa ruziziensis) associated with the application of herbicides {glyphosate; (glyphosate + haloxyfop-R); (glyphosate + fluazifop-p-butyl); (glyphosate + imazethapyr) and (glyphosate + imazaquin)} in soybean desiccation management for volunteer RR® corn control. The experiment was conducted under field conditions at Sinop-MT, during the 2013/2014 crop season, in a randomized complete blocks design with factorial scheme and four replications. The following parameter were evaluated: dry matter of cover crops and ground coverage rate, control of volunteer RR® corn present at the time of desiccation, dry matter, height and intoxication level on soybean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Glycine max; Cover crops; Herbicides. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000100119 |
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| Nascente,A.S.; Guimarães,C.M.; Cobucci,T.; Crusciol,C.A.C.. |
| The correct management of cover crops in no-tillage aims to obtain greater benefits with its introduction in agricultural systems. The use of forage species such as Brachiaria, due to the large amount of biomass and for persisting longer on the ground, has become a good option. In this sense, an important point is the time interval between the cover desiccation with glyphosate and planting of rice in order to obtain higher operating income in the sowing, greater availability of nutrients, greater presence of straw on the soil surface, and lower release of possible allelopathic substances. The objective of this study was to assess the effect of the management of B. ruziziensis, with or without herbicide, preceding the crop planting, in the yield components... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil management; Straw; Cover crops; No tillage system; Glyphosate. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582012000400006 |
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| SOUZA,M.; COMIN,J.J.; KURTZ,C.; LOVATO,P.E.; LIMA,A.P.; KUHNEN,S.. |
| ABSTRACT: The identification of compounds with allelopathic potential produced by cover crops can assist in selecting species for weed management purposes in no-tillage systems. This study aimed to identify the main phenolic compounds with allelopathic potential in the shoot of rye (Secale cereale L.) and oilseed radish (Raphanus sativus L.) cover crops, as well as evaluate whether the cultivation system and phenological stage may influence secondary metabolite production and weed emergence. Samples of the shoot of these cover crops were collected at 60, 80, and 100 days after sowing (DAS) and 15 and 30 days after lodging (DAL) under field conditions. Weed emergence was evaluated at 45, 75, and 100 DAL of cover crops. The main compounds in rye were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cover crops; Allelopathy; Quercetin; BOA; MBOA. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100287 |
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| Registros recuperados: 44 | |
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