%0 Journal Article %T Development of a method for assessing the state of land fertility based on modeling the productivity of agricultural crops in natural zones of the Altai region %A Pochyomin, N.M. %A Morkovkin, G.G. %A Shapovalov, D.A. %A Maximova, N.B. %K soil fertility indicators, crop yield, natural zones, modeling, Random Forest, ERA5-Land, NDVI, SoilGrids, Altai Region %J INTERNATIONAL AGRICULTURAL JOURNAL %D 2025 %N 0 %P 4 %I Electronic science