Technology of Anti-freezing and restoring growth of Flower seedlings in greenhouse and greenhouse

The cold resistance of most of the flower seedlings cultivated in greenhouse and greenhouse is poor, and the growth is slow and the aboveground part is frozen after heavy snow and freezing rain. Through the use of greenhouse and greenhouse heat preservation and heating, the temperature gradually rises, combined with the implementation of pruning and fertilization techniques to promote the growth of flower seedlings.

Technical introduction

1. Clean the snow and frost on the roof in time, strengthen the support, and prevent the greenhouse and greenhouse from collapsing.

2. The seedlings, potted flowers and some annual flowers, precious flowers and green seedlings under cultivation should enter the greenhouse and greenhouse for heat preservation as far as possible, and cover the double-layer greenhouse film and heat preservation quilt in time to prevent cold air from invading.

3. in the haze, freezing and rainy weather, pay attention to heating and replenishing light in time, the light intensity is maintained at about 20000 lux, and the light time is controlled according to the growth characteristics. For the temperature-loving flower seedlings originating in the tropics and subtropics, the temperature should be kept above 12 ℃, while the temperature of other flower seedlings should be kept at about 8 ℃, with the lowest not less than 5 ℃.