Abstract

At the plant field level traditional definitions of water use efficiency (WUE) contain nonbeneficial component of water consumed – evaporation. This is one of the reason for the very big difference between WUE at the leaf and cenosis level (up to 30 times). That is why, without a doubt, the main way to increase WUE at the cenosis level must be due to the practices that reduce the soil water evaporation. Other component of WUE is yield and seed productivity per unit of plant leaf surface. For soybean local introducing of suspension of Bradyrhizobium japonicum with clay minerals in soil not only at sowing, but also at reproductive stages of ontogenesis, may be promising tool of yield increasing

Keywords

soybean, water use efficiency, Bradyrhizobium japonicum