Black Oats
Mostrando 13-24 de 26 artigos, teses e dissertações.
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13. Variation on the amount of winter cover crops residues on weeds incidence and soil seed bank during an agricultural year
This study analyzed possible interferences associated to the amount of crop residues produced by the black oats and the consortium of black oats, common vetch and forage turnip on weeds incidence and soil seed bank. It was a field trial with seven treatments and five replications. The cover crop was sown at throwing, cut at 100 days and residues were put on
Brazilian Archives of Biology and Technology. Publicado em: 2011-08
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14. Exchangeable basic cations and nitrogen distribution in soil as affected by crop residues and nitrogen
In this work, a greenhouse experiment was conducted to study the effects of N fertilization and residues of pearl millet, black oats and oilseed radish on pH and Ca, Mg, K, NO3-, and NH4+ distribution within the profile of a Distroferric Red Latosol. The equivalent of 8 t ha-1 of plant residues were placed on soil surface. Lime was applied on the soil surfac
Brazilian Archives of Biology and Technology. Publicado em: 2011-06
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15. Temporal genotypic diversity of Schizaphis graminum (Rondani 1852) (Hemiptera: Aphididae) in a black oats (Avena strigosa) field
Os estudos de diversidade genética de afídeos em escala temporal podem contribuir para a compreensão dos padrões de migração e dispersão desse grupo de insetos. Este trabalho teve como objetivo quantificar a variação da diversidade clonal em Schizaphis graminum durante o ciclo fenológico da aveia-preta (Avena strigosa). Marcadores RAPD foram utiliz
Brazilian Archives of Biology and Technology. Publicado em: 2010-08
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16. Imobilização de nitrogênio em solo cultivado com milho em sucessão à aveia preta nos sistemas plantio direto e convencional / Nitrogen immobilization in soil cropped with maize in sequence to black oats in conventional and in no-till systems
O presente trabalho teve como objetivos avaliar a quantidade de nitrogênio imobilizado e a sua remineralização, nos sistemas plantio direto (SPD) e convencional (SC), ao longo do ciclo do milho. Para tal, foram coletadas amostras da camada de 0-5cm de solo semeado com milho em sucessão à aveia preta, sob os sistemas convencional e plantio direto, no dia
Publicado em: 2010
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17. Manejo da cultura da soja e plantas invasoras sob cobertura vegetal de aveia preta e consÃrcio de aveia preta, ervilhaca comum e nabo forrageiro
The adjustment of a cover crop to the agricultural system, with species whose chemical composition has substances able to control weeds, is a promising alternative to decrease herbicides application in agriculture. So, this trial aimed at analyzing the interference of black oats residues as well as black oat, common vetch and forage turnip consortium on weed
Publicado em: 2009
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18. Gesso agrícola na produção de milho e soja em solo de alta fertilidade e baixa acidez em subsuperfície em plantio direto
There are doubts about the conditions in which a favorable effect of the application of gypsum on the yield of grain crops can be expected. In order to evaluate the influence of gypsum application in the soil chemical attributes, in mineral nutrition of maize (Zea mays L.) and soybean (Glycine max L. Merrill) yield in no-till system, an experiment was carrie
Publicado em: 2009
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19. Controlled disposal of effluent domestic sewage in the ground a study of the reduction of fecal coliforms / Disposição no solo de efluentes de esgoto tratado visando a redução de coliformes termotolerantes
The indiscriminate launching in the water courses of sewers domestic without treatment, or exactly treat, but without appropriate disinfection, contributes with significant amount of organisms of the called "coliform group", between which specific agents of illnesses of water propagation can be present. The application of the effluent in the ground, instead
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/09/2008
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20. MESOFAUNA EDÁFICA E A TAXA DE DECOMPOSIÇÃO DA RESTEVA DE TRÊS SUCESSÕES DE CULTURA EM SISTEMA PLANTIO DIRETO
The mesofauna soil is composed primarily of Mite and Collembola (75 to 97% of total arthropod fauna of the soil) is one of the few groups of human beings who show enormous diversity of forms, habitat and behavior, being found in almost all places accessible to wildlife because they live in regions epi, hemispheric and euedáficas. The components of mesofauna
Publicado em: 2008
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21. Uso de resíduos vegetais em solos ácidos sob sistema de plantio direto
The Brazilian soils are characterized by low natural fertility, where the main chemical limitations are high acidity and low basic exchangeable cation saturation that can affect the majority of cash crop productions. Liming is the principal practice to reduce soil acidity and to increase basic cations in these soils with high pH-dependent cation exchangeable
Publicado em: 2007
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22. Manejo da podridão de Sclerotinia (Sclerotinia sclerotiorum) e Míldio (Bremia lactucae) na cultura de alface
Lettuce is the highest consumed vegetable in Brazil. It can however be severely affected by the fungus Sclerotinia sclerotiorum, Sclerotinia minor and Bremia lactucae; diseases considered to be ground and aerial part, respectively. The objective of this experiment was to evaluate the effect of different mulches, fungicides and one foliar fertilizer on the in
Publicado em: 2007
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23. Dinâmica do nitrogênio na cultura do milho (Zea mays L.), em cultivo sucessivo com aveia preta (Avena strigosa), sob implantação do sistema plantio direto / Nitrogen dynamics in maize (Zea Mays L) and black oats (Avena srigosa) successive cropping under the introduction of the no-tillage system
The general objective of this work was to study the dynamics of nitrogen in the soil-plant system of two maize crops with a black oats one in between, introducing the no-tillage system. Besides, fertilizing the first maize crop with 15N enriched nitrogen fertilizer, it was also objective of this work to assess the total and the derived from fertilizer nitrat
Publicado em: 2006
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24. COMPACTAÇÃO EM LATOSSOLOS E ARGISSOLO E RELAÇÃO COM PARÂMETROS DE SOLO E DE PLANTAS / COMPACTAÇÃO EM LATOSSOLOS E ARGISSOLO E RELAÇÃO COM PARÂMETROS DE SOLO E DE PLANTAS
Soil compaction is closed related to agriculture as well as animal production management. Soil quality improvement has not been always achieved with use of soil conservation practice as no-tillage or use of animal production integrated to agriculture management. Agricultural traffic and soil management effects on soil compaction are not well known, specially
Publicado em: 2005