Design and experiment of closed culture system for solar greenhouse

The traditional cultivation of a solar greenhouse is to use the soil, but soil-borne diseases lead to continuous cropping obstacles, and with the fertilizer going into the soil along with water, often the environment and groundwater has been polluted, so that it is impossible to achieve sustainable development. So a closed cultivation system was presented. Traditional irrigation in the solar greenhouse was conducted in the following method: water irrigation first, then fertilizers were added for a period of time, and finally irrigation with water was again carried out. Experimental results showed that the yield of a closed culture system increased by 11.7% more than the traditional soil planting, along with saving 2% of the water and fertilizers. It was able to effectively enhance the degree of automation in greenhouse production, conserve resources, protect the environment, and promote sustainable development of the greenhouse industry.