Apparent recovery of surface applied nitrogen fertilizer by a coastcross pasture.

Apparent recovery of surface applied nitrogen fertilizer by a coastcross pasture.

Nitrogen recoveries from fivel levels of urea and ammonium nitrate surface-applied on coastcross pasture, grown on a dark red lotosol (Hapludox), in Sao Carlos, SP, Brazil under tropical altitude climate, were estimated. Significant differences occurred within periods (P<0.05), depending on climatic conditions. Under adequate plant growth conditions, mean N recovery from urea was about 67%, sometimes reaching 80% of that from ammonium nitrate. Recovery of ammonium nitrate varied from 45 to 68% of applied N.

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Bibliographic Details
Main Authors: PRIMAVESI, A. C. P. de A., PRIMAVESI, O. M. A. S. P. R., CORREA, L. de A., CANTARELLA, H., SILVA, A. G.
Other Authors: 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 SILVA, CPPSE.
Format: Artigo de periódico biblioteca
Language:Ingles
English
Published: 2001-02-19
Subjects:Cybodon dactylon cv, coastcross, Pasture, Recovery, ammonium nitrate, urea,
Online Access:http://www.alice.cnptia.embrapa.br/alice/handle/doc/45243
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Summary:Nitrogen recoveries from fivel levels of urea and ammonium nitrate surface-applied on coastcross pasture, grown on a dark red lotosol (Hapludox), in Sao Carlos, SP, Brazil under tropical altitude climate, were estimated. Significant differences occurred within periods (P<0.05), depending on climatic conditions. Under adequate plant growth conditions, mean N recovery from urea was about 67%, sometimes reaching 80% of that from ammonium nitrate. Recovery of ammonium nitrate varied from 45 to 68% of applied N.

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