The use of various closed agrobiotechnological systems (ecosystems) in crop production and agricultural biotechnology is of considerable scientific and practical interest for solving both fundamental (photosynthesis and plant variability) and applied (search for growth regulators and development of biotechnologies) issues in conducting research. The paper presents the results of biological and technological tests in a series of experiments on modeling the influence of plant growth parameters and various technologies for growing salad crops using a prototype of a software-digital device of a closed agrobiotechnological system of the synergotron class of the ISR 1.01 model