LED cultivated Eruca sativa morphogenesis and productivity in different soil mixtures

The main purpose of work was to assess how different soil mixtures could affect the productivity of plants with other conditions being equal and find the most productive treatment. The other purpose was to show that the addition of fertilizer could be more efficient in comparison with hydroponics methods. The methods used in this work include LEDs light sources development, morphometric parameters estimation, and statistical analysis. In our research, we used mixtures based on universal soil, sand, sapropel and the Zion universal ion-exchange nutrient substrate in various proportions. 100% soil was used as a control. The plants were grown under white light (WW) with an intensity of 300 μmol m-2 s-1 and RGB range percent ratio R33:G41:B26. Results. The highest values of fresh weight, total leaf area, and plant leaves number were achieved under the Soil + Zion conditions, respectively. Under the Soil + Sand + Zion and Soil + Zion conditions, the total leaf area, wet weight and leaves number were increased in comparison with the control. The highest productivity was reached in the Soil + Zion experiment. The results demonstrated that the use of a universal ion-exchange nutrient substrate resulted in improved performance in most of the experimental mixtures in comparison with other experiments and control. Soil mixtures with ion-exchange nutrient substrates has advantages to other soil mixtures and can be used to optimize the quality and timing of plant growth.