TY JOUR TI PRODUCTIVITY POTENTIAL OF CHICKPEA VARIETIES IN KAMA REGION OF THE REPUBLIC OF TATARSTAN KW chickpea (Cicer arietinum) KW variety KW crop KW climatic conditions KW productivity KW yield JO Agrobiotechnologies and digital farming AU Sabirova, R.M. AU Akenshaeva, A.Z. PY 2026 IS 4 PB Kazan state agrarian University