The program for maintaining food security is, first of all, a set of measures consisting of systemic, mathematically based models, taking into account the largest number of factors, signs, indicators and criteria that affect the stability of production. Stability of agricultural production directly depends not only on the degree of use of advanced technologies by the region and the economy (optimal crop rotations together with ecological adaptive technology for processing crop rotation fields, selection achievements, the use of modern mineral and organic fertilizers, the use of advanced herbicides, pesticides and others agrochemicals), technical equipment with modern domestic and/or foreign agricultural machinery, but also on the degree of optimization of using available resources on farms. The article uses a probabilistic model of the process of reducing the cost of planned reclamation measures. Within the framework of the proposed model, the optimization problem of finding the cost of activities that ensure the maximum profit for the farm has been solved. A numerical iterative algorithm for solving it has been performed. The solved problem will allow the development of calculation scenarios and control of the rice irrigation system based on mathematical modeling using modern computing facilities.

Ignoring the specific soil and climatic conditions of the Lower Kuban against the background of irrevocable water use and constant increase in production intensification using new, little-studied pesticides and herbicides without studying the mechanism of its environmental impact, has led to serious environmental and economic problems. In this regard, there was needed to study and analyze environmental problems, establish mechanism for its origin and develop a concept and recommendations for overcoming the environmental crisis in which the Lower Kuban, including Azov and Black Seas ecosystems. The article has processed perennial data and our own research results into dynamics of the qualitative and quantitative indicators of the Lower Kuban delta zone basin for more than 70 years. The results of the ionic composition research of estuary water and collector-drainage water were obtained and analyzed. The causal relationships of catastrophic changes in the water ecosystem of the river delta are established and specific recommendations are developed to improve the ecological environment in line with modern standards. The estuaries ichthyofauna composition is analyzed and the reasons for the reduction in fish productivity are identified, ways to solve this are proposed.

Non-linearity account of the soil at a geotechnical calculation allows looking after the plastic strains in the overstress places.

The article proposes the construction of a new generation rice card. The results of a new generation rice card’s construction and operation in “Agrofirm Achuyevskaya” LLC in the Slavyansk region of the Krasnodar Territory are presented. This map makes it possible to highly efficiently control the groundwater level, which, in turn, allows to maintain the required parameters of soil moisture with the necessary and sufficient accuracy. A mathematical model to reduce the price of rice irrigation system construction has been developed, based on the integrated approach to the managerial decisions’ formation in the process of choosing the best option for the construction of an ameliorative system with predicted system’s operational parameters. It helps to quantify the influence strength and direction of the factors taken into account, to perform the multivariate forecast calculations based on the resources available at the construction time, scientific and technical level, construction technologies and materials. The economic effect of this rice map introduction made it possible to increase the yield of green mass of alfalfa to 650 c / ha, and corn to 720 c / ha. An increase in rice crop and the associated rice crop rotation was obtained. The decrease in groundwater levels has improved the ecological and reclamation condition of the rice fields’ soils. Optimization of the managerial decision-making process during the irrigation system construction allowed to reduce the amount of labor costs by 5%, energy resources by 20%. The increase in rice yield amounted to 15%, while reducing its cost by 5%.

The aim of the research is to develop a new method of rice production using environmentally friendly resource and energy saving cultivation technologies. In solving the tasks set to improve the methods of rice irrigation, standard methods and technologies for irrigating rice and alfalfa were used in rice crop rotations. As a result of the Евразийский Союз Ученых (ЕСУ) # 4 (61), 2019 53 research, various methods of moisture-saving soil treatment technologies were developed and recommendations were given to the employees of the agro-industrial complex on the implementation of an ecological-adaptive complex of technological agro-measures.