Where is the greenhouse not recommended to be built?
1. Sandy loam is the most suitable for the construction of greenhouses. Such soil has high temperature and is conducive to the growth of crop roots. If the soil is too sticky, an appropriate amount of river sand should be added, and more organic fertilizers should be applied to improve it. The soil is too alkaline, and the greenhouse project must be improved by applying acid fertilizer before building the greenhouse, and it can be built after the improvement.
2. Greenhouses cannot be built on low-lying and waterlogged plots. Drainage ditches must be dug before the greenhouses can be built. On the groundwater level that is too high, it is easy to reverse slurry. Otherwise, the ground temperature is low and the soil moisture is too much, which is not conducive to the growth of crop roots.
3. The greenhouse should not be built on the tuyere to reduce heat loss and wind damage to the greenhouse.
4. The greenhouse cannot be built in the windy place. The ventilation channel should be opened before the greenhouse is built. Otherwise, the construction of the greenhouse in Shanxi will cause serious crop diseases due to poor ventilation. At the same time, too much snow in winter will also have a destructive effect on the greenhouse.