Data/hora: 29/06/2024 11:13:45

Biblioteca(s): 	Epagri-Sede.	
Tipo da produção científica: 	Artigo em Periódico Indexado	
Circulação/Nível: 	-- - --	
Data corrente: 	01/04/2011	
Data da última atualização: 	01/04/2011	
Autoria: 	VEIGA, M. da; REINERT, D. J.; REICHERT, J. M.	
Afiliação: 	Epagri	
Título: 	Tillage systems and nutrient sources affecting soil cover, temperature and moisture in a clayey oxisol under corn.	
Ano de publicação: 	2010	
Fonte/Imprenta: 	Revista Brasileira de Ciência do Solo, Viçosa, v. 34, n. 6, p. 2011-2020, 2010.	
Idioma: 	Inglês	
Notas: 	ISSN, 0100-0683	
Conteúdo: 	Tillage affects soil physical properties, e.g., porosity, and leads to different amounts of mulch on the soil surface. Consequently, tillage is related to the soil temperature and moisture regime. Soil cover, temperature and moisture were measured under corn (Zea mays) in the tenth year of five tillage systems (NT = notillage; CP = chisel plow and single secondary disking; CT = primary and double secondary disking; CTb = CT with crop residues burned; and CTr = CT with crop residues removed). The tillage systems were combined with five nutrient sources (C = control; MF = mineral fertilizer; PL = poultry litter; CS = cattle slurry; and SS = swine slurry). Soil cover after sowing was greatest in NT (88 %), medium in CP (38 %) and lowest in CT treatments (< 10 %), but differences decreased after corn emergence. Soil temperature was related with soil cover, and significant differences among tillage were observed at the beginning of the growing season and at corn maturity. Differences in soil temperature and moisture in the surface layer of the tilled treatments were greater during the corn cycle than in untilled treatments, due to differences in intensity of soil mobilization and mulch remaining after soil management. Nutrient sources affected soil temperature and moisture in the most intense part of the corn growth period, and were related to the variation of the corn leaf area index among treatments.	
Palavras-Chave: 	Conservation tillage; Conventional tillage; Manure; No-tillage.	
Categoria do assunto: 	--	
URL: 	http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_563.pdf	
Registro original: 	Epagri-Sede (Epagri-Sede)	
Exemplares: 	Epagri-Sede - (77924-1) - UPC - AP - -- -  -  -  - DIS