Title:	Nutrient balance for cropping systems based on legume green manures in oxisols and ultisols.
Authors:	BOULDIN, D. CAHN, M. CRAVO, M. da S.
Affiliation:	DAVID BOULDIN, CORNELL UNIVERSITY; MICHAEL CAHN, CORNELL UNIVERSITY; MANOEL DA SILVA CRAVO, UEPAE DE MANAUS.
Date Issued:	1991
Citation:	In: McBRIDE, T. P. (Ed.). Tropsoils technical report, 1988-1989. Raleigh: North Carolina State University, 1991.
Pages:	p. 116-117.
Description:	The objectives of this study are 1) to develop cropping sequences using legume green manures which keep losses of Ca, Mg, K, and N03 to economically and environmentally sound levels, and 2) to develop models that describe the losses of Ca, Mg, K, and N03 under different soil and climatic regimes and to define the input data required for these models.
Thesagro:	Solo
Type of Material:	Parte de livro
Access:	openAccess
Appears in Collections:	Capítulo em livro técnico (CPAA)