Increasing the efficiency of crop production during sustainble soil cultivation based on the use of new biogenic preparationsV.T. Lobkov, V.P. Naumkin, N.A. Lopachev, N.Yu. Sushenkova and S.Yu. SorokinaBIO Web Conf., 39 (2021) 04008DOI: https://doi.org/10.1051/bioconf/20213904008