The use of bird droppings, mineral and organomineral fertilizers in solving the issue of increasing productivity of agricultural lands of the Trans-Urals
Studies conducted to study the effect of the use of combinations of bird droppings and mineral fertilizers, organic fertilizers on the yield of grain crops in a crop rotation showed that this technique can significantly increase the productivity of arable land.On average, over three years of research, the increase in the use of mineral fertilizers