Creating the main bonitet scale of the Gilgilchay basin soils

The Gilgilchay basin has been characterized, and three ecological (agro-ecological) zones have been divided within the basin, and the soils have been grouped within zones: water catchment, transit, accumulative; standard soils have been selected in each zone and bonitet scores of soils have been found in comparison with them and the main bonitet scale has been created. While carrying out the bonitation of soils, humus, nitrogen, phosphorus and sum of absorbed bases have been taken as the value criteria.