Data/hora: 01/06/2024 07:39:19

Biblioteca(s): | Epagri-Sede.
Data corrente: | 06/06/2011
Data da última atualização: | 06/06/2011
Autoria: | DORTZBACH, D.; LÉIS, C. M.; COMIN, J. J.; BELLI FILHO, P.; PEREIRA, M. G.
Afiliação: | Epagri
Título: | Leaching of nitrate to the fertilization with litter of swine bed depping liquid swine manure and chemical fertilizer.
Ano de publicação: | 2010
Fonte/Imprenta: | In: WORLD CONGRESS OF SOIL SCIENCE, 19., 2010, Brisbane, Austrália. [Proceedings...]. Brisbane, Austrália: International Union of Soil Sciences, 2010.
Idioma: | Inglês
Conteúdo: | The successive application of high doses of pig manure can lead to contamination of nitrate, due to the high nitrogen concentrations in these wastes, related primarily to the composition of the diet of pigs. This study evaluated changes in levels of N-NO3- in an Ultisol, typical in the city of Braço do Norte, SC, during the cycle of culture of the maize in a tillage system, in function to the fertilization with litter of swine bed depping, liquid swine manure and chemical fertilizer, with application of the appropriate dosage of N and twice the recommended dosage for the maize. The evaluations were made at depths of 0-15, 15-30, 30-45 and 45-60 cm at six dates during the maize cycle. There were increases in the levels of NO3- in the soil, with variation of values during the cycle of the culture. The highest value was observed in the treatment fertilized with pig slurry 2x in the depth of 45-60 cm. The results indicate the occurrence of leaching of NO3-, but these elements are not yet present at critical levels in the soil.
Palavras-Chave: | Swine percolation fertilization.
Categoria do assunto: | --
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_2547.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
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