TY  JOUR
TI  Improving crop production efficiency by optimizing the timing of field work
KW  terms of sowing and harvesting of grain crops
KW  conditions of grain maturation
KW  spring and winter wheat
KW  field history book
KW  accounting for the terms of field work 
KW  income
KW  price
KW  profitability
KW  economic efficiency.
JO  Agrarian Bulletin of the
AU  Stepnyh, N.V.
AU  Nesterova, E.V.
AU  Gilev, S.D.
AU  Zargaryan, A.M.
PY  2020
IS  197
PB  Ural State Agrarian University