TY  JOUR
TI  METHOD OF CROP ENERGY CALCULATION, LOST BECAUSE OF THE NEGATIVE IMPACT OF TRACTOR’S PROPELLER ON THE SOIL
KW  tractor
KW  propellers
KW  impact of propellers on soil
KW  crop losses
KW  the theory of similarity
KW  similarity criteria
KW  soil density
KW  soil hardness.

JO  Vestnik of Kazan State Agrarian University
AU  Khafizov, R..
PY  2015
IS  10
PB  Kazan state agrarian University