Drawing up of the open and total bonitet scales in the Mugan plain soils from Azerbaijan

Author have performed an evaluation of the Mugan plain soils and drawn up main, open and total bonitet scales and analysed the total bonitet score comparatively. Main soil signs (humus, nitrogen, phosphorus) were use on different soils (dark grey-brown, ordinary grey-brown, bright grey-brown, meadow grey-brown, boggy meadow, alluvial meadow soils) of Mugan plain. Prepositional bonitet scale is one the first example in Azerbaijan and can be used as scientific-theoretical and practical base during objective and comparative valuation of the soils fertility in the investigated zone and rational use from the soil resources. This bonitet scale will be instructive example for investigates other regions of Azerbaijan.