Agrotechnical measures during winter wheat growing

absorption de substances nutritives agronomia agronomie agronomy consumo de energia crop yield cropping systems cultivos de invierno culture d'hiver date de semis energy consumption energy value ensemencement fecha de siembra fertilisation fertilizer application labranza nutrient uptake rendement des cultures rendimiento de cultivos siembra sistemas de cultivo sowing sowing date tillage travail du sol triticum aestivum winter crops