التفاصيل البيبلوغرافية
| العنوان: |
Physical attributes and organic matter in soils with different use/management cultivated with the main crops in the Cerrado of western Bahia, Brazil. |
| Alternate Title: |
Atributos físicos e matéria orgânica em solos com diferentes uso/manejo cultivados com as principais culturas nos cerrados da região oeste da Bahia, Brasil. (Portuguese) |
| المؤلفون: |
NUNES, Heliab Bomfim, SOARES NETO, Joaquim Pedro, ROSA, Vandayse Abades, CARVALHO, Aline dos Santos de |
| المصدر: |
Cientifica; 2020, Vol. 48 Issue 4, p386-395, 10p |
| مصطلحات موضوعية: |
ORGANIC compounds, CROP yields, AGRICULTURE, SOYBEAN analysis, SOYBEAN field experiments |
| Abstract (English): |
Given the importance of agriculture in western Bahia and the conserving natural resources, this study evaluates soil aggregation, soil organic matter, and soil density in the most important crops in that region. Seventeen areas with different management were sampled: five areas cultivated with soybean (Glycine max L.), two cultivated with maize (Zea mays L.), two cultivated with cotton (Gossypium hirsutum L.), two cultivated with eucalyptus (Eucalyptus spp.), four with pasture, one with crop-livestock integration, two cultivated with coffee (Coffea arabica L.), and two areas of preserved Cerrado. Cotton cultivation was the one that most affected soil aggregation, even under no-tillage. For soybean, no-tillage improved soil aggregation in comparison to conventional tillage. Soil density increased significantly in cultivated areas in comparison to areas in equilibrium. The no-tillage system proved to be efficient in maintaining soil organic matter in soybean growing areas. [ABSTRACT FROM AUTHOR] |
| Abstract (Portuguese): |
Dada a importância da agricultura na Região Oeste da Bahia e da conservação dos recursos naturais, objetivou--se avaliar a agregação, matéria orgânica e densidade do solo nas culturas de maior expressão nessa Região. Foram amostradas 17 áreas com diferentes manejos, sendo cinco áreas cultivadas com soja (Glycine max L.), duas cultivadas com milho (Zea mays L.), duas cultivadas com algodão (Gossypium hirsutum L.), duas cultivadas com eucalipto (Eucalyptus spp.), quatro com pasto, uma com integração lavoura pecuária, duas cultivadas com café (Coffea arabica L.) e duas áreas de cerrado preservado. O cultivo do algodoeiro foi o que mais impactou a agregação do solo, mesmo em sistema plantio direto. O cultivo da soja em sistema plantio direto proporcionou maior agregação quando comparado com o plantio convencional. A densidade do solo aumentou significativamente nas áreas cultivadas quando comparadas com as áreas em equilíbrio. O sistema plantio direto se mostrou eficiente em manter a matéria orgânica do solo nas áreas cultivadas com soja. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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