(NrEGULIROWANIE PLODORODIQ PO^WY (B/s - (NkUK(B, (NdV(B.(Nu(B.s; (N{KONDE(B, (N|(B.(Ni(B.s ((Nm(B. :s (NkOLOS(B,s, 1970)
Keywords: (NpLODORODIE I TOKSI^NOSTX PO^Ws