Title:	Timing and distribution of fertilizer N placement for corn in a Central Amazon Oxisol: M-910B.
Authors:	MELGAR, R. J. CRAVO, M. da S. SMYTH, T. J.
Affiliation:	RICARDO J. MELGAR, N.C. STATE UNIVERSITY; MANOEL DA SILVA CRAVO, UEPAE DE MANAUS; THOMAS JOT SMYTH, N.C. STATE UNIVERSITY.
Date Issued:	1991
Citation:	In: McBRIDE, T. P. (Ed.). Tropsoils technical report, 1988-1989. Raleigh: North Carolina State University, 1991.
Pages:	p. 275-277.
Description:	Oxisols in the Central Amazon have a high permeability and a low water-holding capacity. The potential for N movement into the acid subsoil below the rooting zone is high under such conditions. Fertilizer N availability and recovery may be improved by distributing N in several applications when crop needs are high. The objectives of this study were 1) to determine the optimum rate and method of N application for com and 2) to estimate the effect and efficiency of the different N rates and application treatments on com growth, N uptake, and grain yield.
Thesagro:	Solo
Type of Material:	Parte de livro
Access:	openAccess
Appears in Collections:	Capítulo em livro técnico (CPAA)