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vol.32 issue1CO-INOCULATION OF GROWTH PROMOTING BACTERIA AND Glomus clarum IN MICROPROPAGATED CASSAVA PLANTSORGANIC MATTER AND SOIL FERTILITY IN DIFFERENT SUCCESSIONAL STAGES OF SEASONAL SEMIDECIDUAL FOREST author indexsubject indexarticles search
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Revista Caatinga

Print version ISSN 0100-316XOn-line version ISSN 1983-2125

Abstract

LIMA, Carlos José Gonçalves de Souza et al. SOIL CHANGES AND YIELD OF MAIZE FERTILIZED WITH SWINE WASTEWATER. Rev. Caatinga [online]. 2019, vol.32, n.1, pp.167-178.  Epub May 09, 2019. ISSN 0100-316X.  http://dx.doi.org/10.1590/1983-21252019v32n117rc.

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 Piauí, in Teresina, Piauí, 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 m3 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 m3 ha-1, respectively. Except for potassium and potential acidity, variables showed higher values at the 0-0.20 m depth.

Keywords : Organic waste; Soil attributes; Zea mays.

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