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

  • Antonio Carlos Saraiva Da Costa Universidade Estadual de Maringá
  • Edleusa Pereira Seidel Universidade Estadual do Oeste do Paraná
Palavras-chave: animal wastes, anion exchange capacity, nitrogen, swine manure

Resumo

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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Biografia do Autor

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.
Publicado
2010-11-29
Como Citar
Costa, A. C. S. D., & Seidel, E. P. (2010). <b>Nitrate leaching from a Latosol after application of liquid swine manures in different pH values and organic matter contents</b&gt; - doi: 10.4025/actasciagron.v32i4.10070. Acta Scientiarum. Agronomy, 32(4), 743-748. https://doi.org/10.4025/actasciagron.v32i4.10070
Seção
Solos

 

2.0
2019CiteScore
 
 
60th percentile
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2.0
2019CiteScore
 
 
60th percentile
Powered by  Scopus