Nitrate leaching from a Latosol after application of liquid swine manures in different pH values and organic matter contents - doi: 10.4025/actasciagron.v32i4.10070

Antonio Carlos Saraiva Da Costa; Edleusa Pereira Seidel

doi:10.4025/actasciagron.v32i4.10070

Nitrate leaching from a Latosol after application of liquid swine manures in different pH values and organic matter contents - doi: 10.4025/actasciagron.v32i4.10070

Antonio Carlos Saraiva Da Costa Universidade Estadual de Maringá
Edleusa Pereira Seidel Universidade Estadual do Oeste do Paraná

DOI: https://doi.org/10.4025/actasciagron.v32i4.10070

Keywords: animal wastes, anion exchange capacity, nitrogen, swine manure

Abstract

Liquid swine manures are produced in large volumes in the western Paraná and Santa Catarina states and are reused as a source of nutrients. This study aimed to evaluate the losses of nitrate (N-NO₃^-1) after application of liquid swine manures in three samples of a Latosol (Rhodic Eutrudox) with different levels of soil organic matter and pH collected at different depths. The experimental design was completely randomized with one soil, three levels of soil organic matter (34.09, 22.36 and 8.6 g dm^-3), four pH in CaCl₂ (4.0, 5.0, 6.0 and 7.0) conditions and three replications. Each experimental unit contained 450 cm³ of soil that received a dose of liquid swine manures equivalent to 120,000 dm^-3 ha^-1. The concentration of N-NO₃^-1 was evaluated in the leaching solution after the weekly application of water equivalent to 150 mm for a period of 35 days. The amount of N-NO₃^-1 leached increased with soil organic matter content and soil pH. The amount of nitrate leached tends to be maximum at pH close to or above 7.0.

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Author Biography

Antonio Carlos Saraiva Da Costa, Universidade Estadual de Maringá

Professor das disciplinas de Gênese, Morfologia dos Solos, Química e Mineralogia dos Solos do curso de graduação Departamento de Agronomia. Professor das disciplinas de Mineralogia dos Solos, Química dos Solos, Controle da Poluição dos Solos do curso de Pós-Graduação em Agronomia.

Published

2010-11-29

How to Cite

Costa, A. C. S. D., & Seidel, E. P. (2010). Nitrate leaching from a Latosol after application of liquid swine manures in different pH values and organic matter contents - doi: 10.4025/actasciagron.v32i4.10070. Acta Scientiarum. Agronomy, 32(4), 743-748. https://doi.org/10.4025/actasciagron.v32i4.10070

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Issue

Vol 32 No 4 (2010)

Section

Soils

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