@article{Safin2018optimal,
author={Safin, R.I. and Amirov, M.F. and Suleymanov , S.. and Gilyazov, M..},
title={OPTIMAL METHODS OF FORAGE CROPS OF CROPS ON THE CALCULATED BACKGROUND  OF MINERAL NUTRITION IN THE SOIL-CLIMATIC CONDITIONS OF FOREST-STEPPE  OF THE MIDDLE VOLGA},
journal={Vestnik of Kazan State Agrarian University},
publisher={Kazan state agrarian University},
year={2018},
pages={72-76},
volume={13},
issue={4},
}