TY JOUR TI INCREASING THE EFFICIENCY OF THE CROP MANAGEMENT SYSTEM BASED ON DIGITAL TECHNOLOGIES KW digitalization KW management system KW digital technologies KW efficiency KW crop production KW digital system JO Vestnik of Kazan State Agrarian University AU Klychova, G.S. AU Zakirova, A.R. AU Valiev, A.R. AU Yusupova, A.R. AU Husainova, A.S. PY 2021 IS 16 PB Kazan state agrarian University