TY  JOUR
TI  ASSESSMENT OF BIOLOGICAL AND CHEMICAL FERTILIZERS INFLUENCE  ON PRODUCTIVITY OF SPRING WHEAT HARD
KW  spring hard wheat
KW  biologics
KW  fertilizers
KW  crop yields.

JO  Vestnik of Kazan State Agrarian University
AU  Amirov, M.F.
AU  Amirov, A..
PY  2015
IS  10
PB  Kazan state agrarian University