TY  JOUR
TI  INFLUENCE OF SINGLE AND MIXED CROPS OF PERMANENT GRASS  ON SOIL ENZYMIC ACTIVITY IN THE CONDITIONS  OF FOREST-STEPPE OF THE MIDDLE VOLGA REGION
KW  crops
KW  herbs
KW  soils
KW  bacteria
KW  activity
JO  Bulletin Samara State Agricultural Academy
AU  Markovskaya, G.K.
AU  Guseva, S.A.
PY  2019
IS  4
PB  Samara State Agrarian University