Tillage and mulch effects on soil physical environment, root growth, nutrient uptake and yield of maize and wheat on an alfisol in north-west India

absorption de substances nutritives crecimiento croissance crop yield cubrimiento del suelo growth inde india labranza luvisol luvisoles luvisols mulching nutrient uptake paillage racine rendement des cultures rendimiento de cultivos roots soil chemicophysical properties tillage travail du sol triticum aestivum zea mays