During the use of the plastic greenhouse film, due to pollution, adhesion of water droplets and other reasons, it will greatly reduce its light transmission capacity, affect the vegetable lighting, reduce the effectiveness. Farmers should take various measures to increase the transmittance of the greenhouse film.
First, clean the film
To increase the light transmittance of the plastic film in the booth, in addition to designing a good lighting angle and promoting the use of non-drip film, the management should clean the surface of the film with clean water every 5-7 days to clean the dust and smash the grass. Can increase the transmittance of 5%-8%.
Second, dry fine soil or gypsum powder
Flatten the new agricultural film and sprinkle the fine soil or gypsum powder on it. Wipe it with a towel or cloth several times and wipe it clean. When the film is covered, the treated side faces inward, which reduces the adhesion of water droplets.
Third, spray soy flour
The soybeans are ground to a fine powder, 7.5-10 grams of soy flour per square meter of the shed film, 150 grams of water, soaked for 2 hours and then filtered with fine gauze. After removing the scum, spray the water droplets on the shed film with a sprayer. The water droplets fall quickly and keep fresh water droplets for 15-20 days.
Fourth, turn drying film
In the 15-20 days before the frost, the sheds were buckled. After about 30 days, they were selected to be free of wind and sunny at noon. The membranes were removed and turned over so that the original upwards face turned downward and then fixed, which greatly reduced the Water droplets greatly increase light transmittance.
Imported Bio-based Plastic Resin
Chemical plastic products bring people all kinds of convenience, but also bring unimaginable trouble. As some waste plastics will not degrade under natural conditions, the combustion will release harmful gases, causing difficult pollution to the ecological environment. So scientists around the world are starting to develop self-destructing, or autolytic, plastics that can break down on their own to solve the problem. Some call it "green plastic". Companies in many countries have introduced their own biodegradable plastics. Biologists at the University of Mitzgan in the United States first proposed the idea of "growing" degradable plastics. Using potatoes and corn as raw materials, they inserted the plastic's genetic material so that it could be artificially grown without harmful ingredients. Imperial Chemical Forests USES bacteria to make sugars and organic acids into biodegradable plastics. The method is similar to the fermentation process used to produce ethanol, except that the bacteria, alkaloids, turn the feed into a plastic called PHBV. Bacteria accumulate the plastic as a store of energy, just as humans and animals store fat. When the bacteria have accumulated as much as 80% of their body weight in PHBV, they break down the cells with steam to collect the plastic. PHBV has properties similar to polypropylene, a material that is stable even in humid environments after being discarded, but which degrades into carbon dioxide and water in the presence of microorganisms.
Imported Bio-Based Plastic Resin,Pla For Cup Lids,Pla Heat Performance,Easy Printability Pla
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