Structure of the microbial complex in wheat rhizosphere under herbicide stress

The use of mathematical analysis made it possible to show that prometryn applied in pot experiments affected indirectly (via plants) the microbial community in the spring wheat rhizosphere. On the one hand, prometryn inhibited photosynthesis and reduced plant productivity, resulting in a decrease in the amount of root exudates and the number of their consumers. On the other hand, it promoted dying off of root tissues and activated fresh organic matter decomposition with participation of fast growing heterotrophs at first, and at the final stages of the microbial succession, cellulolytic microorganisms appeared. Against this background, the biologically active substrate intensified the soil microbiological processes, reduced the adverse effect of prometryn on the development of plants, and created more favorable conditions for the functioning of microorganisms.