APPLICATION OF ECONOMIC-MATHEMATICAL METHODS IN FIELD RESEARCH OF CEREAL CROPS IN THE CONDITIONS OF CLIMATE CHANGES IN UKRAINE IN THE SECOND HALF OF THE 19th – AT THE BEGINNING OF THE 21st CENTURIES

It has been established that the use of effective technologies for growing cereal crops in different soil-climatic conditions of Ukraine is of great importance in the modern conditions of climate change and other stress factors. Such technologies ensure the systematic and comprehensive use of science-based measures affecting the solution of global social problems of humanity, which were caused by climate change and the rf's full-scale war in Ukraine. For this purpose, the wide application of economic-mathematical methods is provided, which ensure the accuracy of obtaining the results of field research, the identification of previously unknown regularities for the favorable growth and development of cereal crops, especially in modern conditions of climate change and other stressful factors. With the use of dispersion analysis, the dynamics of the mutual influence of the main technological factors: varieties and hybrids of cereal crops, crop rotations, tillage, fertilization, plant protection and weather conditions on the productivity of cereal crops in the conditions of climatic changes in Ukraine during the second half of the 19th – the beginning of the 21st centuries were evaluated. The share of mutual influence of the main technological factors and weather conditions on the productivity of the leading cereal, legumes and technical crops in Ukraine is calculated. It was found that the analysis of mathematically verified results of field studies contributes to increasing the reliability of conclusions, better assessment of the essence and solving of scientific-practical problems, establishing new urgent tasks for solving in the future.