Soil fertilizer as an antropogenic factor of the increase potential in biological fixation of nitrogen

An application of mineral fertilizers is considered the main method of provision of agriculture plants with nitrogen. However, the plant need for nitrogen can’t be always wholly satisfied because of the energetic crisis and expensiveness of nitrogen fertilizers. In this regard, biological nitrogen is of great importance. Use of the biological nitrogen creates a favorable background for agriculture and allows to spend economically mineral fertilizers.