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RuСельскохозяйственные мелиорации
Материалы по теме
The development of virgin and fallow lands in the Irkutsk region in 1950-1960-ies.
| The development of virgin and fallow lands in the Irkutsk region in 1950-1960-ies. 2015. |
Saline soils in Western Siberia
| Orlovsky, Nikolay Vasilyevich. Saline soils in Western Siberia. |
Experimental field of the Ministry of Agriculture and State Property. The Hungry Steppe
| Prokudin-Gorskii, Sergei Mikhailovich (1863-1944). Opytnoe pole Ministerstva Zemledieliia i Gosudarstvennykh Imushchestv. Golodnaia step '. [between 1905 and 1915]. |