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Type: Artigo de periódico
Title: Spatialization Of Least Limiting Water Range In An Oxisol Under Two Sugarcane Harvesting Systems [espacialização Do Intervalo Hídrico ótimo De Um Latossolo Vermelho Em Dois Sistemas De Colheita De Cana-de-açúcar]
Author: Araujo F.S.
De Souza Z.M.
De Souza G.S.
Matsura E.E.
Barbosa R.S.
Abstract: The objective of this work was to evaluate the least limiting water range of an Oxisol under a sugarcane cultivation with mechanical and manual harvesting, and to establish the spatial variability relationship between this attribute and crop productivity. The work was conducted in two areas cultivated with sugarcane, one of which was mechanically harvested without burning since 1996, and the other was manually harvested after burning since 1973. The least limiting water range was evaluated by determining the soil resistanceto penetration at 0.002, 0.006, 0.01, 0.03, 0.05, 0.1, 0.5 and 1.5 MPa soil-water potentials. The least limiting water range varied with soil management changes in both studied systems, which indicates a greater soil degradation and lower water content in the area under manual harvesting. The greater crop yield concentrates in regions of higher least limiting water range.
Rights: aberto
Identifier DOI: 10.1590/S0100-204X2013000600011
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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