Study On The Performance And Application Of The New Type Of Inner Thermal Insulation Solar Greenhouse

By making comparation with the new type of inner thermal insulation solar greenhouse and ordinary solar greenhouse in performance indicator such as light intensity, temperature, relative humidity and the physical indicator and the yield of cucumber, leafy vegetables(lettuce. rape, leaf lettuce, spinach), draw the following conclusions.1. Light intensity of the new type of inner thermal insulation solar greenhouse, especially the rear illumination greenhouse was higher than ordinary solar greenhouse. Lighting conditions throughout the year improved much than ordinary solar greenhouse.2. When the outdoor temperature reached to a minimum of-21.1℃, the minimum temperature of the new type of inner thermal insulation solar greenhouse was3.3℃, which was1.8℃higher than ordinary solar greenhouse.3. The fruit quality and yield indicators of cucumber of the new type of inner thermal insulation solar greenhouse were better than the ordinary solar greenhouse, cucumber production improved to15.43%compared with ordinary solar greenhouse. Photosynthetic rate, chlorophyll content of cucumber leaves and content of fruit Vc, total soluble sugars, starch, soluble protein, soluble solids in the new type of inner thermal insulation solar greenhouse were higher than ordinary solar greenhouse.4. Physiological indexes of the new type of inner thermal insulation solar greenhouse were better than ordinary solar greenhouse in winter production of the leafy vegetables; yield was slightly higher than the ordinary sunlight greenhouse. Both of the two types of greenhouses were no freeze to death.In summary, the light intensity, temperature and humidity conditions of the new type of inner thermal insulation solar greenhouse could meet the needs of the autumn and winter production of cucumber and leafy vegetables in Hohhot, yield and quality of vegetables made improvement compared with ordinary solar greenhouse.