TY JOUR TI SOME QUESTIONS ABOUT HEAT SUPPLY IN THE SOIL-PLANT–AIR SYSTEM KW heat supply of plants KW bifurcation points KW growth JO Vestnik of Kazan State Agrarian University AU Maksimov, I.I. AU Valiev, A.R. AU Alekseev, E.P. AU Maksimov, N.V. AU Lukina, I.V. PY 2024 IS 19 PB Kazan state agrarian University