TY BOOK TI The efficiency of organic and mineral fertilizers when cultivating crops in the fodder crop rotation in the Komi Republic KW agrochemistry KW northern agriculture KW organic and mineral fertilizers KW potatoes KW annual herbs KW dry matter KW crude protein KW sod-podzolic soils AU Chebotarev, N.T. AU Lebedeva, S.S. AU Yudin, A.A. AU Kokovkina, S.V. AU Romanov, G.G. PY 2023 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"