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The monograph examines the ways of increasing productivity naturally in soils with a weak humus layer and justifies the decisive role of grain, potato, which is considered the main food crop, and clover, which is considered the main fodder plant in animal husbandry, in the rotation system, i.e., the use of gaseous nitrogen in the atmosphere to increase the productivity of agricultural plants. It is not considered appropriate to give high doses of mineral fertilizers to the soil.The monograph can be used in scientific research institutions, universities.