The application of solar greenhouse for flowers in the winte

The sunlight greenhouse is using the sunlight as the energy to heating the crops. Until now, it is popular among the growers.
In the winter, the flowers will be damaged by the low temperature. The damaged flowers in winter will be languished from lack of water. Here are four effective ways to solve this problem. First, lower the greenhouse temperature little by little. Then it can gradually strengthen the resistance to cold. Second, the crops should be irrigated regularly. Increasing the phosphorus potassium can improve the resistance to low temperature. Third, cultivate the cold-resistant crops. Fourth, change the local climate of the greenhouse. The flowers characteristics should be considered when using above methods. Generally, in temperate and subtropical regions, the crops could be healthy when the temperature is over 5℃.
Some suggestions for using sunlight greenhouse:
1>. To prevent continuous cloudy and low temperature days, the sunlight greenhouse must increase temporary heating fire well.
2>. 4 or 5 mercury thermometer should be suspend in the greenhouse for daily observation.
3>. It had better using aging-resistant and anti-drop film. The light transmittance will be reduced 2 or 3 year later, then it need to change in time.
4>. The film should be lift timely to get more sunshine, reducing heat dissipation.
5>. Everyday, keeping film tent surface clean can delay the film aging, and increase the light transmittance and absorb more heat.

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