Greenhouse cultivation is now more and more common. It can not only provide a good and suitable growing environment for crops, but also does not need to be like open-air planting. Plants often encounter wind and rain, which has a very negative impact on growth. However, greenhouses are planted in the winter with less sunshine and have their shortcomings. Mainly due to insufficient light intensity and insufficient length of sunshine, it also affects the growth of crops, so it is necessary to take some measures to improve the light intensity of greenhouse vegetables.
First, the structure of the greenhouse should be done well
1, the greenhouse film is best to use no drop film, if you want to use ordinary film, then polyethylene film is better.
2. Appropriately increase the height of the greenhouse, whitewash the building materials and walls, and use the reflective to improve the lighting conditions in the shed.
3. The orientation of the greenhouse and the angle of the shed should be adjusted according to the time of use of the greenhouse, the purpose of production and the requirements of the crop for the lighting conditions.
Second, a reasonable layout
1. When planting different kinds of vegetables in the greenhouse, the principle of “Northern High and Low South†should be followed. The order of the height of the plants should be neat and orderly, and the plants should not be laid out at random, so that the vegetables are blocked from light.
2, the same kind of vegetable transplanting, it is best that the vegetable seedlings are the same size, so that the plants grow neatly and reduce the shading between the plants.
3. Strengthening cultivation management is also conducive to improving the lighting conditions in the shed.
Third, keep the shed film clean and properly cover the straw curtain
1. The water droplets and dust on the shed film should be cleaned and cleaned frequently.
2, after snowing, clear the snow on the greenhouse, greenhouse film, do not let the snow cover the light.
3. Under the premise of ensuring warmth, cover the straw curtain properly.
Fourth, do a good job of plant sorting and artificial fill light
1. Timely management of pruning, snoring, tying vines, and old leaves are conducive to ventilation and light transmission conditions in the shed.
2. The sling in the shed should be colorless and transparent.
3, in the case of severe winter and other lack of light, artificial light fill.
The above are some effective measures to improve the light intensity in greenhouses with poor lighting. Although greenhouse cultivation is also affected by fluctuations such as weather, there are ways to overcome difficulties. If all the measures are done, the effect will definitely be greatly improved.
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