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https://locus.ufv.br//handle/123456789/30143
Tipo: | Artigo |
Título: | Long-term wheat-soybean successions affecting the cover and soil management factor in USLE, under subtropical climate |
Autor(es): | Silva, Tiago Stumpf da Cassol, Elemar Antonino Levien, Renato Eltz, Flávio Luiz Foletto Schmidt, Marcelo Raul |
Abstract: | Vegetation cover and soil management influence the magnitude of soil losses. In the Universal Soil Loss Equation (USLE), cover and management are represented by the C factor, as it is the easiest factor to manage to reduce loss of soil and water in agricultural areas. This study aimed to determine the C factor of a succession of wheat (Triticum aestivum L.) followed by soybean (Glycine max) under conventional tillage, reduced tillage, and no-tillage. For this, data of soil losses obtained in the field, under natural rainfall conditions, in a long-term experiment that lasted for 13 years were used. The cycle of both crops was divided into five stages with different time intervals between winter and summer, which resulted in ten periods per year constituting the succession. The C factor values varied widely among the treatments and the stages during the crop cycle, and they were influenced mainly by the rainfall distribution of the region, growth of the vegetation and soil disturbance level. By the end of the 13 years of experimentation, the C factor of the wheat-soybean succession under conventional tillage was 0.1576, 0.0407 under reduced tillage, and 0.0368 under no-tillage. |
Palavras-chave: | C factor erosion soil losses soil tillage crop systems |
Editor: | Sociedade Brasileira de Ciência do Solo |
Citação: | Silva TS, Cassol EA, Levien R, Eltz FLF, Schmidt MR. Long-term wheat-soybean successions affecting the cover and soil management factor in USLE, under subtropical climate. Rev Bras Cienc Solo. 2020;44:e0190180. |
Tipo de Acesso: | Creative Commons Attribution License |
Identificador DOI: | https://doi.org/10.36783/18069657rbcs20190180 |
URI: | https://locus.ufv.br//handle/123456789/30143 |
Data do documento: | 14-Mai-2020 |
Aparece nas coleções: | Solos - Artigos |
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