Erosividade média e o calendário agrícola da microrregião sudoeste do Estado de Goiás

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2016

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Resumo

Aimed to estimate and map the erosivity average (EI30) monthly and annual correlating with planting and harvesting calendar to main crop of Goias state southwestern region. Historical rainfall data (1980-2000) were used from thirty weather stations. The erosivity were correlated not only with land use and land cover maps but also with the planting and harvesting calendar of soybean, corn, sorghum, cotton and sugarcane. Smallest EI30 occurred between May and September period, which corresponded the harvest of corn (2nd harvest), sorghum, cotton and sugarcane. On the other hand, November to March period showed the greatest EI30, were occur the planting soybeans, corn (1st and 2nd harvest), sorghum, cotton and sugarcane, and the harvest of soybeans and corn (1st and 2nd harvest). January, most erosive month of the year, soybean, corn and cotton may be the most affected by erosivity high levels. In order to reduce soil losses, it is recommended especially for soil preparation and seeding of crops period, in the spring and summer seasons, the no-tillage system.

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Erosão pluvial, Planejamento agrícola, Cerrado goiano, Grandes culturas, Erosivity, Agricultural planning, Savanna of Goiás, Crop

Citação

ALMEIDA, Rherison Tyrone Silva; CASAROLI, Derblai. Erosividade média e o calendário agrícola da microrregião sudoeste do Estado de Goiás.GeoFocus, Madrid, v. 17, p. 26-43, 2016. Disponível em: https://www.geofocus.org/index.php/geofocus/article/view/426. Acesso em: 18 nov. 2024.