MODELING THE PROCESS OF COMBINED IRRIGATION USING ELECTROCHEMICALLY ACTIVATED WATER IN GREENHOUSES
Abstract and keywords
Abstract (English):
The article discusses the modeling of the combined irrigation process using electrochemically activated water in greenhouses. It is proposed to maintain the greenhouse microclimate using an automated control system, which includes a programmable logic controller and specialized sensors for measuring pH levels, soil moisture and temperature, as well as air temperature and humidity. Drip irrigation and misting systems are used for watering. Electrochemically activated water, containing catholyte and anolyte, is used as irrigation water. To assess the influence of catholyte on soil pH, an experiment was conducted in which the pH level was measured in various soil layers (0-10 cm, 10-25 cm, 25-40 cm, 40-55 cm) over a period of 144 hours. The obtained data were analyzed, and a computer program was developed based on them, simulating the changes in soil pH levels in the greenhouse using a second-order aperiodic model with delay and a neural network model. Both models demonstrated high accuracy in predicting soil pH changes, which was confirmed by the calculated determination coefficient R². The irrigation model using catholyte, developed in MatLab/Simulink, reproduced the transient process of soil pH changes, confirming the adequacy of the experimental data. The research results showed that the use of catholyte significantly affects soil acidity, while not significantly altering soil moisture and the air humidity levels in the greenhouse

Keywords:
Automated control system, electrochemically activated water, greenhouse microclimate, soil pH, modeling, algorithm, experiment
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