Effect of organic, organo-mineral and mineral fertilizer systems on the yield of grain-row crop rotation crops and the fertility of southern heavy loamy chernozem in the arid Volga region
Ostrovskaya, Elena Nikolaevna, 1993, Candidate of Sciences dissertation
Effect of organic, organo-mineral and mineral fertilizer systems on the yield of grain-row crop rotation crops and the fertility of southern heavy loamy chernozem in the arid Volga region — Ostrovskaya, Elena Nikolaevna — 1993 — Russian Dissertation Library