Abstract
Due to the growing demand for agricultural products, there is a need to intensify the process of growing plants and reduce their diseases. Therefore, the technical implementation of methods for controlling the functional activity of plants using electromagnetic radiation at different stages of organogenesis and their automation is an urgent task. The research aims to increase the efficiency of plant cultivation by studying electrophysical methods of controlling their productivity and implementing a computer-integrated system. To achieve this goal, a mathematical corrective model of the interaction of laser radiation with solid biological tissue, algorithms for measuring and generating control effects, methods of automatic control theory, and visual programming in LabView were used. The data were processed in MS Excel. The connections in the biotechnical plant-environment system were analysed, material flows and information channels were identified, a set of state parameters, and direct and cross relationships between them were singled out, and sources of disturbances were argued. The basic principles of the interaction of laser radiation with biological tissue are determined and the biophysical mechanism is substantiated. A set of software and hardware control and management tools for conducting experimental studies of electrophysical effects on plant biological objects has been developed. To obtain feedback from plants, new tools for diagnosing the physiological state of plant organisms were developed and a computer-integrated system for controlling the process of plant irradiation was created. The control system is based on the Arduino microcontroller software and is connected to a PC. An operator panel was created to provide automated process control and a subsystem for recording measured data. In practice, the results of this study can be applied in greenhouses in Ukraine and other countries, including in the cultivation of vegetable crops