Soil and water losses in different soil tillage systems on a hapludox under simulated rainfall

arado arados de discos artificial precipitation cero-labranza charrue à disques disc ploughs erosión por el agua gestion du sol glycine max gradagem manejo del suelo nitosol nitosoles nitosols nitossolo non-travail du sol precipitación artificial précipitation artificielle soil management soja soybeans water erosion zero tillage érosion hydrique