SOIL CHANGES AND YIELD OF MAIZE FERTILIZED WITH SWINE WASTEWATER
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Data
2019-01-01
Autores
Goncalves de Souza Lima, Carlos Jose
Pereira, Laercio da Silva [UNESP]
Silva Santos, Theuldes Oldenrique da
Pinto, Samia Natacia
Rodrigues, Artenisa Cerqueira
Pinheiro Leal Nunes, Luis Alfredo
Título da Revista
ISSN da Revista
Título de Volume
Editor
Univ Fed Rural Semi-arido-ufersa
Resumo
Swine wastewater can be used as a biofertilizer and promote significant improvements in soil physical-chemical attributes and yield. The objective of this study was to evaluate the effects of swine wastewater application on soil and maize yield. The experiment was conducted at the Agricultural Sciences Center of the Federal University of Piaui, in Teresina, Piaui, Brazil, from August to November 2015. The experimental design used completely randomized blocks in split-plot scheme, with five doses of swine wastewater (0, 25, 50, 75 and 100 m(3) ha(-1)) in the plots and two soil depths (0.20 and 0.40 m) in the subplots, with four replications. Exchangeable contents of calcium, magnesium, phosphorus, potassium and sodium, electrical conductivity, pH, sum of bases, base saturation, potential acidity and cation exchange capacity, and crop yield were evaluated. Results showed calcium, magnesium, sum of bases and cation exchange capacity increased with elevated levels of swine wastewater. Potassium and sodium contents however decreased with doses of 51.58 and 52.28 m(3) ha(-1), respectively. Except for potassium and potential acidity, variables showed higher values at the 0-0.20 m depth.
Descrição
Palavras-chave
Organic waste, Soil attributes, Zea mays
Como citar
Revista Caatinga. Mossoro: Univ Fed Rural Semi-arido-ufersa, v. 32, n. 1, p. 167-178, 2019.