Strategic level of agrocenoses state management

Abstract

The aim of the work is to develop a theoretical basis for solving the problem of managing the state of agrocenoses, which contain crops of the main crop and weeds. The solution to this problem is aimed at eliminating the limitations of the existing paradigm of separate management of the state of crops and weeds. The application of mineral fertilizers simultaneously stimulates the growth and development of plants, crops and weeds, and herbicide treatments simultaneously suppress the growth of both crop plants and weeds. As a result, this leads to significant crop losses and overconsumption of fertilizers and herbicides. The proposed theory and methodology is based on taking into account the relationship between the state of crops and weeds, and their overall effect on the content of nutrients in the soil. For this, a system of mathematical models has been proposed, in which these relationships and yield losses are taken into account when the parameters of the chemical state of the soil deviate from the optimal values for crop rotation and from the effect of herbicide treatments on crop sowing. The result of solving the problem is the optimal strategies for the introduction of mineral fertilizers, ameliorants and herbicides by years of crop rotation. These strategies ensure that yield losses are minimized for all crops, rotation and agrochemical consumption. They are the main tool for planning agricultural technologies and standardizing technological operations carried out for individual years of crop rotation. The results obtained are new, since such tools are currently lacking.