Study of agrochemical and physical-chemical properties gray-brown soils of the Karabakh Plain

Research is conducted at the Terter Regional Experimental Station of the Research Institute for Agriculture. In order to improve the fertility of gray-brown soils and obtain high-quality crop yields, we studied the agrochemical and physical–chemical properties of the experimental plot. Thus, the analysis of gray–brown soils showed that, according to the gradation adopted in Azerbaijan, these soils are poorly supplied with nutrients, in an easily digestible form of plants. Therefore, it is necessary to make in these soils together organic and mineral fertilizers