Data/hora: 11/06/2024 18:50:36

Provedor de dados: | 91
País: | Brazil
Título: | Water erosion and soil water infiltration in different stages of corn development and tillage systems
Autores: | Carvalho,Daniel F. de; Eduardo,Eliete N.; Almeida,Wilk S. de; Santos,Lucas A. F.; Alves Sobrinho,Teodorico.
Data: | 2015-11-01
Ano: | 2015
Palavras-chave: | Soil loss; Infiltration rate; Soil tillage; Rainfall simulator.
Resumo: | ABSTRACTThis study evaluated soil and water losses, soil water infiltration and infiltration rate models in soil tillage systems and corn (Zea mays, L.) development stages under simulated rainfall. The treatments were: cultivation along contour lines, cultivation down the slope and exposed soil. Soil losses and infiltration in each treatment were quantified for rains applied using a portable simulator, at 0, 30, 60 and 75 days after planting. Infiltration rates were estimated using the models of Kostiakov-Lewis, Horton and Philip. Based on the obtained results, the combination of effects between soil tillage system and corn development stages reduces soil and water losses. The contour tillage system promoted improvements in soil physical properties, favoring the reduction of erosion in 59.7% (water loss) and 86.6% (soil loss) at 75 days after planting, and the increase in the stable infiltration rate in 223.3%, compared with the exposed soil. Associated to soil cover, contour cultivation reduces soil and water losses, and the former is more influenced by management. Horton model is the most adequate to represent soil water infiltration rate under the evaluated conditions.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015001101072
Editor: | Departamento de Engenharia Agrícola  - UFCG
Relação: | 10.1590/1807-1929/agriambi.v19n11p1072-1078
Formato: | text/html
Fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental  v.19 n.11 2015
Fonte: | info:eu-repo/semantics/openAccess