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Soil loss by water erosion in areas under maize and jack beans intercropped and monocultures. / Terra Lima, Pedro Luiz; Naves Silva, Marx Leandro; Curi, Nilton et al.
In: Ciência e Agrotecnologia, Vol. 38, No. 2, 03.2014, p. 129-139.Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Soil loss by water erosion in areas under maize and jack beans intercropped and monocultures
AU - Terra Lima, Pedro Luiz
AU - Naves Silva, Marx Leandro
AU - Curi, Nilton
AU - Quinton, John
N1 - Creative Commons License All the contents of www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License
PY - 2014/3
Y1 - 2014/3
N2 - Adequate soil management can create favorable conditions to reduce erosion and water runoff, consequently increase water soil recharge. Among management systems intercropping is highly used, especially for medium and small farmers. It is a system where two or more crops with different architectures and vegetative cycles are explored simultaneously at the same location. This research investigated the effects of maize intercropped with jack bean on soil losses due to water erosion, estimate C factor of Universal Soil Losses Equation (USLE) and how it can be affected by soil coverage. The results obtained also contribute to database generation, important to model and estimate soil erosion. Total soil loss by erosion caused by natural rain, at Lavras, Minas Gerais, Brazil, were: 4.20, 1.86, 1.38 and 1.14 Mg ha(-1), respectively, for bare soil, maize, jack bean and the intercropping of both species, during evaluated period. Values of C factor of USLE were: 0.039, 0.054 and 0.077 Mg ha Mg-1 ha(-1) for maize, jack bean and intercropping between both crops, respectively. Maize presented lower vegetation cover index, followed by jack beans and consortium of the studied species. Intercropping between species showed greater potential on soil erosion control, since its cultivation resulted in lower soil losses than single crops cultivation, and this aspect is really important for small and medium farmers in the studied region.
AB - Adequate soil management can create favorable conditions to reduce erosion and water runoff, consequently increase water soil recharge. Among management systems intercropping is highly used, especially for medium and small farmers. It is a system where two or more crops with different architectures and vegetative cycles are explored simultaneously at the same location. This research investigated the effects of maize intercropped with jack bean on soil losses due to water erosion, estimate C factor of Universal Soil Losses Equation (USLE) and how it can be affected by soil coverage. The results obtained also contribute to database generation, important to model and estimate soil erosion. Total soil loss by erosion caused by natural rain, at Lavras, Minas Gerais, Brazil, were: 4.20, 1.86, 1.38 and 1.14 Mg ha(-1), respectively, for bare soil, maize, jack bean and the intercropping of both species, during evaluated period. Values of C factor of USLE were: 0.039, 0.054 and 0.077 Mg ha Mg-1 ha(-1) for maize, jack bean and intercropping between both crops, respectively. Maize presented lower vegetation cover index, followed by jack beans and consortium of the studied species. Intercropping between species showed greater potential on soil erosion control, since its cultivation resulted in lower soil losses than single crops cultivation, and this aspect is really important for small and medium farmers in the studied region.
KW - Cover plants
KW - C factor
KW - soil sustainability
KW - MINAS-GERAIS STATE
KW - RAINFALL EROSION
KW - NUTRIENT LOSSES
KW - TILLAGE SYSTEMS
KW - VEGETAL COVER
KW - GREEN MANURE
KW - C-FACTORS
KW - SOUTH
KW - CORN
KW - CROP
U2 - 10.1590/S1413-70542014000200004
DO - 10.1590/S1413-70542014000200004
M3 - Journal article
VL - 38
SP - 129
EP - 139
JO - Ciência e Agrotecnologia
JF - Ciência e Agrotecnologia
SN - 1413-7054
IS - 2
ER -