(NpOWY[ENIE KA^ESTWA OPYTNOJ RABOTY S UDOBRENIQMI NA POLQH KOLHOZOW I SOWHOZOW (B:s (NsBORNIK NAU^NYH TRUDOW (B/s - (NdERVAWIN(B, (Nl(B.(Nm(B.s; (NmINISTERSTWO SELXSKOGO HOZQJSTWA sssrs; (NwSESO@ZNOE PROIZWODSTWENNO(B-(NNAU^NOE OB_EDINENIE PO AGROHIMI^ESKOMU OBSLUVIWANI@ SELXSKOGO HOZQJSTWA (B"(NsO@ZSELXHOZHIMIQ(B"s; (NcENTRALXNYJ INSTITUT AGROHIMI^ESKOGO OBSLUVIWANIQ SELXSKOGO HOZQJSTWAs ((NmOSKWA (B:s (Nb(B. (NI(B.,s, 1981)
Keywords: (NuDOBRENIQs