@article{Shakirov2020change,
author={Shakirov, R.S. and Bikmuhametov, Z.M. and Hisamiev, F.F. and Safiollin, F.N.},
title={CHANGE IN FERTILITY INDICATORS OF GRAY FOREST SOIL AND CROP PRODUCTIVITY IN THE CROP ROTATION LINK WHEN APPLYING FERTILIZERS},
journal={Vestnik of Kazan State Agrarian University},
publisher={Kazan state agrarian University},
year={2020},
pages={59-65},
volume={15},
issue={2},
}