@article{Shevchenko2026optimization, author={Shevchenko, V.A. and Popova, N.P. and Bondareva, G.I. and Solovyev, A.M.}, title={Optimization of the content of easily hydrolyzable nitrogen in the cultivation of narrow-leaved lupine on unproductive lands}, journal={INTERNATIONAL AGRICULTURAL JOURNAL}, publisher={Electronic science}, year={2026}, pages={743-747}, volume={}, issue={5}, }