Evaluation of the infiltration rate in pasture-agriculture integrationsystem, using a portable sprinkler infiltrometer - DOI: 10.4025/actasciagron.v28i1.1708

• Autor(a) principal: Panachuki, Elói
• Data de Publicação: 2008
• Outros Autores: Sobrinho, Teodorico Alves, Vitorino, Antônio Carlos Tadeu, Carvalho, Daniel Fonseca de, Urchei, Mário Artemio
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Acta Scientiarum. Agronomy (Online)
• Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1708
• topic: modelo de Kostiakov-Lewis; sistemas de cultivo; simulador de chuvas; 5.03.00.00-8 Engenharia Agrícola

This study was carried out in Dourados, State of Mato Grosso do Sul, Brazil, in order to evaluate the soil water infiltration characteristics in three different tillage systems: pasture (System A), oat in minimum tillage (System B) and continuous pasture (System C). The field tests were performed by a sprinkler infiltrometer, regulated for rainfall intensities of 60 mm h-1 and 100 mm h-1. Based on the field data, the Kostiakov-Lewis and Horton models were adjusted. It was concluded that: a) System B presented the largest stable infiltration rate for the intensity of 60 mm h-1, and the lowest rate when the rainfall intensity was 100 mm h-1; b) The Horton model adjusted better to the field data, presenting determination coefficients always higher than 88.0%.