Title:	Effect of sources and rates of nitrogen on nutrients extraction in coastcross pastures.
Authors:	PRIMAVESI, A. C. P. de A. PRIMAVESI, O. M. A. S. P. R. CORREA, L. de A. CANTARELLA, H. SILVA, A. G. da FREITAS, A. R. de
Affiliation:	ANA CANDIDA PACHECO DE A PRIMAVESI, CPPSE; ODO MARIA ARTUR S P R PRIMAVESI, CPPSE; LUCIANO DE ALMEIDA CORREA, CPPSE; H. CANTARELLA, IAC; ALIOMAR GABRIEL DA SILVA, CPPSE; ALFREDO RIBEIRO DE FREITAS, CPPSE.
Date Issued:	2001
Citation:	In: INTERNATIONAL GRASSLAND CONGRESS, 19., 2001, São Pedro, SP. Proceedings... Piracicaba: FEALQ, 2001.
Pages:	p. 192-193.
Description:	The contents and the extraction of mineral nutrients were determined in a coastcross pastures established on a dark red lotosol (Hapludox), in Sao Carlos, SP, Brazil, under tropical altitude climate, receving five rates of urea and ammonium nitrate, applied on surface. There weredifference (P<0.05) among sources and rates of N. Nutrients extractionincreased with the nitrogen lelves. Especial high werw total N (319 and 446 kg ha) and K (341 and 467 kg ha) extraction. When forage yield was high (treatment with 500 kg of N ha) and for both fertilizers, macronutrientns extraction was greater for K and, followed by Ca, S. PandMg. Micronutrients extraction ocurred in the following decreasing order: Fe, Mn Zn and Cu.
NAL Thesaurus:	ammonium nitrate urea
Keywords:	Mineral extraction cynodon dactlon cv Surface application Extracao mineral Coastcross Aplicacao de superficie Nitrato de amonia
Type of Material:	Artigo em anais e proceedings
Access:	openAccess
Appears in Collections:	Artigo em anais de congresso (CPPSE)