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Type: Artigo de periódico
Title: Soil attributes under pasture system with and without irrigation
Author: Pereira, AL
Campos, MCC
de Souza, ZM
Cavalcante, IHL
da Silva, VA
Martins, MV
Abstract: The livestock production is one of the most important economic activities in the Brazilian savanna and its success depends on the management system used as well as the use of grasses adapted to the edaphoclimatic conditions of the region. Therefore, the aim of this work was to evaluate the soil attributes under pasture with Tanzania grass (Panicum maximum Jacq. cv. Tanzania) and bread grass [Brachiaria brizantha (Hochst ex A. Rich.) Stapf. cv. Marandu], with and without irrigation, in the municipality of Rio Verde, Goias State, Brazil. The experiment was carried out on an oxisol soil at the Comigo Technological Center, in 16 plots of 450m(2) each. The experimental design used was the completely randomized blocks with four replications. The treatments consisted of two grass species, Tanzania grass (Panicum maximum) and bread grass (Brachiaria brizantha) and two irrigation treatments, with and without irrigation. The following attributes were determined: aggregate stability, pH, calcium, magnesium, potassium, phosphorus, potential acidity, cation exchange capacity, base saturation, and organic matter content. The chemical attributes varied in both layers mainly due to the liming and fertilization of the soil, independently of the irrigation system. The treatments with Tanzania grass and bread grass without irrigation presented the highest organic matter content and the highest values of DMG. Most of the aggregates had a diameter larger than 2.0 mm. The irrigation management did not affect the dry mass of the grasses studied.
Subject: Pasture
Tanzania grass
bread grass
aggregate stability
Country: Brasil
Editor: Univ Federal Lavras-ufla
Rights: aberto
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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