(NfOSFOR OSNOWNYH TIPOW PO^W sssr (B/s - (NgINZBURG(B, (NkLARA eFREMOWNAs; (NiNSTITUT AGROHIMII I PO^WOWEDENIQ an sssrs; (NpO^WENNYJ INSTITUT IM(B. (Nw(B.(Nw(B. (NdOKU^AEWAs ((NmOSKWA (B:s (NnAUKA(B,s, 1981)
Keywords: (NfOSFOR W PO^WAHs -- (Nsssrs