The fertility change of the agrogray soil under the influence of different vermicomposts

The way to improve the soil fertility by using vermicomposts obtained by the environmental biotechnology method in the process of vermicomposting of the wood industry and the poultry industry wastes is considered in the article. It is shown that the highest yield of rapeseed and wheat is formed when introducing 6 t/ha of vermicomposts prepared on the basis of bark, hydrolytic lignin and bird droppings.