TY  JOUR
TI  CHANGE IN FERTILITY INDICATORS OF GRAY FOREST SOIL AND CROP PRODUCTIVITY IN THE CROP ROTATION LINK WHEN APPLYING FERTILIZERS
KW  yield
KW  productivity
KW  crop rotation
KW  fertilizers
KW  efficiency
KW  green manure
KW  droppings
KW  manure
JO  Vestnik of Kazan State Agrarian University
AU  Shakirov, R.S.
AU  Bikmuhametov, Z.M.
AU  Hisamiev, F.F.
AU  Safiollin, F.N.
PY  2020
IS  15
PB  Kazan state agrarian University