Fertility ecological models of the main types of soils in Azerbaijan

Models of soil fertility of agricultural and forest lands consist of a number of blocks (agroecology, composition and properties of soils, soil regimes, agrophysics, agrochemistry, assessment of soil fertility, land reclamation, etc.). Analysis of the accumulated data shows that by compiling a model of the fertility of various soils, depending on the needs of cereals, cotton, potatoes, grapes, pastures, tea plantations and other crops, certain successes have been achieved in Azerbaijan. The results of these studies are confirmed by the data on crop yields in individual farms.