Title:	Sources and rates of Phosphorus in improving degraded pasture in brazilian West Amazon.
Authors:	PAULINO, V. T. COSTA, N. de L. TOWNSEND, C. R. MAGALHAES, J. A. PEREIRA, R. G. de A.
Affiliation:	V. T. PAULINO, INSTITUTO DE ZOOTECNIA; NEWTON DE LUCENA COSTA, CPAF-AP; CLAUDIO RAMALHO TOWNSEND, CPAF-RO; JOAO AVELAR MAGALHAES, CPAMN; RICARDO GOMES DE ARAUJO PEREIRA, CPAF-RO.
Date Issued:	2001
Citation:	In: INTERNATIONAL GRASSLAND CONGRESS, 19., 2001, São Pedro, SP. Grassland ecosystems: an outlook into the 21st century: proceedings. Piracicaba: SBZ: FEALQ, 2001.
Description:	The effects of phosphorus sources (triple superphosphate – TSP, single superphosphate – SSP and partially acidulated rock phosphate – PARP) and rates (0, 50 and 100 kg/ha of P2O5 on dry matter (DM) yields and chemical composition of a degraded Brachiaria brizantha cv. Marandu pasture were evaluated in a cutting trial. Phosphorus fertilization, irrespective of sources and rates, showed an effective agronomic technique for pasture recuperation. The grass DM yields and potassium contents were significantly improved by phosphorus application, while weed DM yields were depressed. Irrespective of sources and rates, crude protein, phosphorus, and calcium contents were not affected by phosphorus fertilization. The application of 100 kg of P2O5 /ha, as TSP, provided the highest grass yields, while for PARP it was observed the least effect of phosphorus fertilization.
NAL Thesaurus:	Calcium Crude protein Potassium Magnesium
Keywords:	Dry matter
Type of Material:	Artigo em anais e proceedings
Access:	openAccess
Appears in Collections:	Artigo em anais de congresso (CPAF-AP)