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| Registros recuperados: 106 | |
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| 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 < 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... |
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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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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... |
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Palavras-chave: Indicadores biológicos; Labranza; Rotación; Residuos; Biological indicator; Tillage; Crop rotation; Residues; Maestría; Edafología. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/317 |
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| 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 |
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| 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 |
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| 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 |
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| 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: Folhetos |
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 |
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| Registros recuperados: 106 | |
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