@article{Amirov2015assessment,
author={Amirov, M.F. and Amirov, A..},
title={ASSESSMENT OF BIOLOGICAL AND CHEMICAL FERTILIZERS INFLUENCE  ON PRODUCTIVITY OF SPRING WHEAT HARD},
journal={Vestnik of Kazan State Agrarian University},
publisher={Kazan state agrarian University},
year={2015},
pages={98-102},
volume={10},
issue={1},
}