Wind erosion of soil - protective effect of farm crops in the control of wind erosion

abonos verdes cultivation cultivo engrais vert erosion control estructura del suelo gramineas graminee grasses green manures grosseur des particules leguminosae mouvement du sol movimiento del suelo particle size plant soil relations pratique culturale relaciones planta suelo relation plante sol rompeviento soil soil movement soil structure soil types sol structure du sol suelo type de sol velocidad velocity vent viento vitesse wind erosion windbreaks winds