Soil nitrate level variation under intensive nitrogen fertilized coastcross pasture.

AUTOR(ES)
FONTE

INTERNATIONAL GRASSLAND CONGRESS

DATA DE PUBLICAÇÃO

2011

RESUMO

Nitrate levels in soil profile after the first N application on coastcross pasture, grown on a dark red latosol (Hapludox), in Sao Carlos, SP, Brazil, under tropical altitude climate, were measured at 7-day intervals, to monitor possible losse in depth. Soil nitrate rates varied with high rates of N-ammonium nitrate (200kg ha per cutting) in surface layers. Danger of environmental impact was low in the studied conditions.

ASSUNTO(S)

ammonium nitrate cynodom dactylon cv coastcross pasture soil nitrate urea

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