TY  JOUR
TI  Spring wheat productivity forecasting  in the forest steppe zone of Volga by least squares method
KW  arable land
KW  productivity
KW  spring wheat
KW  mineral and organic fertilizers
KW  moving average
KW  analysis of variance
KW  least squares method
JO  Vestnik of Kazan State Agrarian University
AU  Avvakumov, O..
PY  2014
IS  8
PB  Kazan state agrarian University