SP report, 14: Surface runoff, erosion and loss of phosphorus at two agricultural soils in Denmark, plot studies 1989-92 [erodibility index, rill erosion, top soil]

agricultural soils aradura automne autumn azote barbecho contenido de agua en el suelo crops cultivos danemark denmark deterioro del suelo dinamarca eau de ruissellement escorrentia esfuerzo del suelo fallow field experimentation fosforo grosseur des particules harrowing hersage hiver infiltration invierno labour lluvia loam soils mouvement de l'eau dans le sol movimiento del agua en el suelo nitrogen nutrientes nutrients particle size permeabilidad permeability phosphore phosphorus plante de culture ploughing pluie porosidad porosity primavera printemps rain rastreo runoff sandy soils sediment sedimentation sedimento soil deterioration soil sorption soil strength soil temperature soil water content soil water movement sol agricole sol sableux sol sablolimoneux sorption du sol spring substance nutritive suelo arenoso suelo franco temperatura del suelo teneur en eau du sol water erosion winter