puits (1) temps (durée) (1) eau de surface (1) ruissellement (1) papier (1) gestion (1) irrigation (1) affluent (1) infiltration (1) pente (1) ferme (exploitation) (1) érosion (1) effet (1) drainage (1) contamination (1) taux (1) Rates (1) Water (1) Values (1) Tops (1) Time (1) Speed (1) Seepage (1) Runoff (1) Performance (1) Percolation (1) Paper (1) Mass (1) Management (1) Furrow irrigation (1)