Sostojanie agrokhimicheskikh issledovanijj do 1970 goda i trebovanija ikh razvitija na fone planov cnavzhenija sel'skogo khozjajjstva mineral'nymi udpbrenijami do 1985 goda
EN
The present state of chemical and agricultural investigations up to 1970, and the stipulated trends of development basing upon plants of fertilizers delivery for agriculture up to 1985