Study on Technique Effect of Greenhouse Environment Factors Controlling and Reasonable Environment Parameters

Test results of the greenhouse environment control technique showed that the technique effects of temperature, humidity, light, nutrient liquid and CO₂ gas controlling were mainly desirable. The reasonable control parameter of each environment factor was determined. By using this environment control system, the vegetable crops could grow well in the greenhouse in the whole year, and reach the goal of high yield, high quality and high economic return.