Snow has certain benefits to crops, but it has a great impact on the glass greenhouse. Snow directly affects the light in the greenhouse, which causes the temperature of the glass greenhouse to decrease, resulting in slow growth of vegetables, and severe frost damage. So how should glass greenhouse deal with rain and snow?
1. Get planting and listing in time, and timely seeding and listing should be grabbed in time for some frost -free vegetables to reduce the loss of snow disaster.
2. When planting vegetables in the open field, clean up ditch in time, eliminate the accumulation of water in the field, reduce the groundwater level, reduce the damage to the environment, promote the healthy growth of the root system, and help improve the cold resistance of crops. Take anti -freezing treatment to cover measures covering small arched sheds, plactin, dry straw, leaf surface ash and other measures. Combined with farming and rollover, remove the dead leaves and apply 0.2%potassium dihydrogen phosphate 0.2%urea to pursue one -time rhizome.
3. Remove snow in the field in time, especially the snow in the shed. At the same time, do a good job of cleaning and drainage work to reduce the groundwater level and prevent water accumulation. Try to avoid damaging the shed film when snowing; damage the shed film and strengthen the frame facilities. In particular, the shed film time must be tightened and the glass greenhouse framework must be strengthened. The bottom membrane around the greenhouse should be tightened with soil, and the holes on the greenhouse must be filled with tape to reduce the invasion of cold air, increase temperature, maintain warmth, and prevent frozen frost.
In order to improve temperature and warmth, insulation measures such as covering grass curtains, shading nets, or multi -layer coverage should be taken to prevent cold and frost. If necessary, take temporary temperature compensation measures to temporarily use electric heating fans and air heating lines to improve the temperature in the glass greenhouse.
