TY  JOUR
TI  PHOTOSYNTHETIC ACTIVITY OF SWEET CLOVER OF THE SECOND YEAR OF LIFE
KW  assimilating leaf surface
KW  cover crop
KW  sowing methods
KW  varieties
KW  seeding rate
KW  photosynthetic activity
KW  net productivity.
JO  Vestnik of Kazan State Agrarian University
AU  Grigor'ev, K.V.
AU  Shashkarov, L..
PY  2018
IS  12
PB  Kazan state agrarian University