Cover of the work “Scientific aspects of optimizing the cultivation of grain crops in the system of grain-fallow crop rotations of the Lower Volga region”. Author: Zakharov, Pyotr Yakovlevich. Degree: Doctor of Sciences. Year: 1998

Scientific aspects of optimizing the cultivation of grain crops in the system of grain-fallow crop rotations of the Lower Volga region

Volgograd

372 pp.

Scientific aspects of optimizing the cultivation of grain crops in the system of grain-fallow crop rotations of the Lower Volga region — Zakharov, Pyotr Yakovlevich — 1998 — Russian Dissertation Library