Effet de la date d'épandage sur l'efficience et le devenir de l'azote du lisier appliqué en prairie permanente en Haute Ardenne

Efficiency and fate of slurry N applied to permanent grass in Ardenne (Belgium) – Effect of the choice of spreading period. In Haute Ardenne and Pays de Herve, areas devoted to grass, slurry represents the main source of nitrogen; slurry is applied on permanent pasture. This paper aims to compare the nitrogen efficiency of cattle slurry with that of mineral fertilizers and to determine the influence of the choice of spreading period on N use by grasses. Results from two long terms trials and from one in micro plots using stable 15N are presented. Results show that the fertilizers applied (orga... Mehr ...