Temperature and light are the most basic requirements for crop growth. However, when greenhouse vegetables are grown in winter, there will be insufficient light filling, which will largely nutrient the quality of vegetables. How do the greenhouse vegetables fill light? Let's let Xiaobian introduce it to everyone.
How to make light in greenhouse vegetables in winter
First, the use of mechanical roller blinds: the use of mechanical roller blinds in winter, not only can save manpower, reduce labor intensity, and can significantly shorten the time to expose, cover grass curtains (or insulation), effectively extend the vegetable lighting time in the greenhouse.
Second, the choice of light film: the use of light film film shed, can increase the light intensity in the shed, is very beneficial to the growth of vegetables in the shed.
Third, keep the shed film clean: dust and dirt on the shed film will cause its light transmittance to drop significantly. Therefore, it is necessary to clean the dust and dirt on the shed frequently. The snow should be removed at any time during the snowy day to keep the film surface clean and keep the permeable film as high as possible.
Fourth, the ground cover mulch: cover the mulch vegetable floor mulch, not only to improve the ground temperature, reduce the air humidity inside the shed, cover the reflective light formed after the film, can also enhance the light intensity of the base of the vegetable to make up for the lack of direct light at the base.
5. Hanging reflective screen: The reflective curtain is placed on the inner wall of the greenhouse, which can obviously enhance the light intensity of the vegetables near the back wall and increase the vegetable yield in the area.
Sixth, artificial fill light: In case of continuous rainy and snowy weather, if conditions permit, turn on the electric light or ignite the biogas light to fill the light, help the vegetables to tide over the difficulties, and prevent the vegetables from dying due to long-term lack of light.
Seven, reasonable pruning and threshing: timely pruning, snoring, knocking out old leaves, diseased leaves, dead leaves, also have a significant effect on improving the light conditions of vegetables in the shed and increasing vegetable yield.
After reading the above introduction, do you have a certain understanding of the vegetable light in the greenhouse in winter? In order to promote the high yield and harvest of greenhouse vegetables, we must do a good job of filling the greenhouse vegetables.
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