The correct selection of colored agricultural film can increase crop yields, increase income, prevent disease and improve quality. If you choose the wrong color, it is often counterproductive. The use of 7 colored agricultural films is described below. The blue plastic film is also called the blue light-enhanced film. The main characteristic is that the heat preservation performance is good, the temperature rises quickly, and the light transmittance under the weak light condition is higher than that of the common agricultural film, but under the strong light condition, it is lower than the common agricultural film. Under blue light, crop photosynthesis is accelerated, which can increase crop nitrogen and carbon content and protein content, improve quality, early harvest, and increase yield. Therefore, the film is mainly used for rice breeding and is conducive to the cultivation of dwarf seedlings. Can also be used for vegetables, peanuts, cotton and other crops. At the same time, the cruciferous vegetables have a good inhibitory effect against Alternaria. In the early spring when the Yangshuo vegetables are cultivated, the light blue agricultural film can be used to pass through the blue-violet light in large quantities to promote the robustness of the seedlings. At the same time, it can absorb a lot of orange light, increase the temperature inside the film, make the seedlings grow strong, and the stems and leaves are large. The main feature of the red agricultural film is that it can transmit red light, but also can block the transmission of shades of other unfavorable crops, and meet the demand of red light for crops. Practice has shown that the rice seedlings cultivated under the red agricultural film grow vigorously, the sugar content of the sugar beet increases, the carrot straight root is thick, the leek leaves are broad and thick, the harvest is early, and the yield is high. Can fully meet the needs of rice, corn, sugar beet and other crops on the red light, making it grow vigorously. The main feature of green agricultural film is that it can reduce the visible light transmittance of plants for photosynthesis, while the increase of green light is beneficial to control weeds and increase crop yield. Mostly used for strawberries, beans, eggplant, sweet and spicy, tomatoes, melons, and other cash crops. The main feature of the yellow agricultural film is that it can increase the yellow light, through the red, yellow and orange light, eliminating the blue light and purple light. Covering the cucumber with yellow plastic film can promote bud blossom and increase the yield by 50% to 100%. Covering celery and lettuce can make the plant grow taller and extend the edible period. Covering the dwarf lentils can promote internode growth and growth. The main feature of light-turning agricultural film is that it can convert the ultraviolet light in sunlight into red-orange light, increase the intensity of photosynthesis of plants, improve the content of crop nutrients, and reduce the occurrence of pests and diseases. The suitable range is all economic crops. The use of the film to cover corn production increased by 10% to 12%, peanut production by 5% to 8%, tobacco yield by 5% to 10%, soybean production by 7% to 10%, tomato yield by 10% to 15%. The main feature of ecological agricultural film is to give full play to the effect of light quality on the rate of photosynthesis and the adjustment of crop growth, so that the picking time is ahead of schedule, the greenhouse fog is reduced, the shed temperature is increased by 1~3°C, the ground temperature is 1~3°C, and the crop is enhanced. Disease resistance. The suitable range of the film is peanut, soybean, corn, pepper, tobacco, cabbage, watermelon and the like. The main characteristics of longevity dripless film is that the light transmittance of the greenhouse increases by 10% to 15%, the greenhouse temperature increases by 2~3°C, the harvest time of the crop is advanced, the nitrate content in the fruit is reduced, and the disease resistance of the crop is improved. It is mainly used to cover crops in the cold season.
Medical protective clothing refers to the protective clothing used by medical personnel (doctors, nurses, public health personnel, cleaning personnel, etc.) and people entering specific medical and health areas (such as patients, hospital visitors, personnel entering infected areas, etc.). Its function is to isolate germs, harmful ultrafine dust, acid and alkaline solutions, electromagnetic radiation, etc., to ensure the safety of personnel and keep the environment clean.
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