@article{Kobyakova2019efficiency,
author={Kobyakova, T.I.},
title={Efficiency of phosphorition of the chernozem soils of northern forest-steppe of Kurgan region},
journal={Agrarian Bulletin of the},
publisher={Ural State Agrarian University},
year={2019},
pages={8-18},
volume={188},
issue={9},
}