In winter, especially in rainy months, the maximum use of light energy is the key to high-yield and high-efficiency greenhouse production. In the greenhouse vegetable production on the use of aluminum reduction ester film as a light curtain, can increase the light intensity of about 20%; increase the indoor temperature of about 1 °C, increase the ground temperature around 2 °C; improve the quality of seedlings, increase the quantity and efficiency.
The use of greenhouse reflective curtains:
1, time. At the beginning of November, the curtain of light curtains began to hang and the light curtains were removed in early April. The light curtains were properly kept and used again in the second year.
2, the amount. Currently, the width of reflective screens to be promoted is 1 meter wide. The length of the curtains generally needs to be 2 times the length of the back wall. The amount of 5 mu of mu is used, and the cost is about 250 yuan.
3, method. Measure two reflective screens with the same length as the back wall of the greenhouse. Use two pieces of transparent adhesive tape to form a 2 meter wide banner. It can be directly fixed on the back wall, or you can pull two east-west fine steel wires at the upper front of the column in the greenhouse, fold the upper and lower edges of the curtain back to 3 cm, and then fix it with transparent tape or paper clips.
4, attention. One is to leave a gap underneath the curtain in front of Zhongzhu to facilitate watering; the other is to place a seedling in the early stage of planting seedlings to water more properly to prevent cauterization; thirdly, nursery beds, stand beds, and seedlings. Be away from the light curtain by 50 centimeters and avoid burning too close.
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