%0 Journal Article %T EFFICIENCY OF SULFUR BENTONITE AND AMMONIUM SULFATE IN THE NUTRITION SYSTEM OF SUNFLOWER HYBRIDS ON TYPICAL GRAY FOREST SOILS OF THE REPUBLIC OF TATARSTAN %A Tahaviev, I.D. %K sunflower, sulfur, sulfur bentonite, ammonium sulfate, nitrogen-phosphorus-potassium background, gray forest soils, yield, hybrid. %J Agrobiotechnologies and digital farming %D 2026 %N 5 %P 6 %I Kazan state agrarian University