Abstract:

The purpose is to realize scientific planting, centralized management and standardized production of vegetables in solar greenhouse, and explore an effective planting pattern. The article studied the variation of temperature, humidity and light in different planting areas by monitoring and analyzing air temperature, ground temperature, humidity and illumination intensity of different planting locations. And the influence on the yield of lettuce at different planting locations was studied by measuring the yield of different lettuce varieties. The results indicated that the temperature, humidity, and light intensity of the greenhouse were different at different planting locations. The air temperature and ground temperature gradually increased from south to north, and the light intensity first increased and then decreased. Due to the difference of temperature and light conditions, the growth trend of lettuce at the north and south sides was uneven. The yield of different lettuce varieties presented a relatively consistent regularity from south to north, that is, the yield of lettuce in the north was higher, and the yield of lettuce in the southernmost was significantly different from that at other locations. The experiment studied the changing law of environmental conditions such as temperature and light at different planting locations, which could provide a theoretical basis for the scientific planting of greenhouse vegetables.

Key words: solar greenhouse, lettuce, planting location, temperature, light