@article{Safiollin2018optimum,
author={Safiollin, F.N. and Nizamov , R.. and Suleymanov , S.. and Minnullin, G..},
title={OPTIMUM SOWING NORMS OF SUNFLOWER OF RODNIK VARIETY DEPENDING OF MINERAL NUTRITION BACKGROUND ON GREY FOREST SOILS OF THE MIDDLE VOLGA REGION},
journal={Vestnik of Kazan State Agrarian University},
publisher={Kazan state agrarian University},
year={2018},
pages={49-52},
volume={13},
issue={1},
}