Purpose: to develop an algorithm for correcting water delivery to a rice field and a model for using a system of algorithms, as well as a computer program that improves the rational use of water resources in rice systems.
Materials and methods. The program was developed in MS Excel and is intended for calculating the water supply and discharge value during the growing season. Regulatory and methodological sources were used as source materials.
Results and discussion. When calculating water delivery values for rice crop rotations, agricultural producers often use inflated water requirements. This leads to an increase in unproductive discharges and soil degradation. To prevent such negative consequences, an algorithm for calculating the water supply and disposal values for the entire growing season has been developed. This algorithm consists of two blocks: initial data and calculated parameters. The first block can be conditionally divided into two components: the choice of crops in rice crop rotation and the characteristics of soil conditions. In the second block, water demand rates, water supply and water disposal values are calculated for each field (check). The rice irrigation rate is calculated by the water balance equation of the check. The calculation is performed for each field and in total for the entire crop rotation.
Conclusion. The use of the algorithm made it possible to calculate water demand norms with higher accuracy, due to the ability to set parameters for each check, based on the basic soil-reclamation and agroclimatic conditions of rice crop rotations, such as moisture ratio, particle size distribution, salinity level and groundwater level. The process of applying the algorithm has been brought to automation, which makes it possible to speed up water management calculations by 15 %. The program has a Certificate of State Registration.
modern irrigation technologies, efficient use of water resources, rice growing, Proletarian irrigation system, algorithm, water supply, rice systems
Ponomarenko T. S., Ryzhakov A. N. Algorithm for automating the calculation of water delivery and discharge value in a rice field during the growing season. Ways of Increasing the Efficiency of Irrigated Agriculture. 2024;92(1):147–159. (In Russ.).
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