First, black film. Serious weeds or high-temperature season cultivation of summer radish, cabbage, spinach, autumn cucumbers, late tomatoes, the choice of black film is better.
Second, the purple membrane. The film is mainly suitable for the cultivation of solanaceous and green leafy vegetables in greenhouses or plastic greenhouses in winter and spring, which can improve the quality and increase the yield.
Third, the yellow film. According to tests, celery and lettuce were covered with a yellow film, the plants grew tall, bolting was postponed, and the beans grew robustly; when they were covered with cucumbers, budding and flowering were promoted, and the yield was increased by 1 to 1.5 times.
Fourth, the red film. Production practices have demonstrated that sugar beets grown under the red film have a high sugar content; carrot roots grow longer; cabbage leaves are thicker and fleshy, harvesting times are ahead of schedule, and yields increase.
Fifth, the blue film. Can be used for vegetables, cotton, peanuts, strawberries, beans, eggplant, sweet peppers, tomatoes, melons and other vegetables and other economic crops, can better play a role in weed control.
Six, silver gray film. It is mainly suitable for the cultivation of summer vegetables, melons, cotton and flue-cured tobacco, and has good disease prevention, anti-worm and whitefly effects and improves quality.
Seven, silver reflective film. It is mainly used for greenhouse vegetable cultivation. It can be hung in the greenhouse to cultivate the northern side of the loquat and improve the lighting conditions in the greenhouse.
Eight, silver and black double-sided film. The film is a composite of milk grey and black film. Covered with silver gray film on the film, black film under, with a variety of functions such as avoiding disease, preventing weeding and water retention. Mainly suitable for summer and autumn vegetables, melons and other disease-resistant heat cultivation.
Nine, black and white color film. When covered, the white is on top, and the black is on the bottom. It is mainly suitable for heat-resistant cultivation of vegetables and melons in summer and autumn. With a good effect of lowering the temperature, the water retention and weed control effects are also very good. The film is used for ground cover cultivation of cool vegetables such as radish, cabbage, and lettuce, which can grow well in summer.
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