Whether the shed film is suitable to directly affect the coloration of eggplant, the correct selection of shed film is an important part of the production of overwintering eggplant. At present, the market sales of the film is generally divided into four categories: namely, no drip film (PVC film), drip film, composite film and purple film (vinyl acetate light film). Farmers should choose purple film, composite film or no drip film, can not use drip film. Purple light film can absorb and reflect purple light, purple light can inhibit the growth of eggplant stems and leaves, promote eggplant coloring; composite film is currently on the market sales of high-tech products, composed of three layers, which focus on dust, anti-aging, non-dried three major Advantages: Specific gravity, thickness and price are close to that of non-drip film. It is an ideal film for winter vegetable production. However, it must be face up in order to receive good results. No drip film, no drip drop under film Falling, good light transmission, humidity in the shed is small, and the temperature in the shed is 3°C-5°C higher than that of the dripping film. It is resistant to aging and can be used continuously for more than 2 years. It is very beneficial to the production of winter eggplant and safe wintering. The back wall of the greenhouse can be hung with a reflective film to fill the light, which can directly reflect the sunlight to increase the light in a certain range in the greenhouse. The reflected light shines from the rear of the greenhouse to the front, which improves the overall light environment in the greenhouse. Sunlight greenhouses hang reflective film, can effectively improve the microclimate conditions in the greenhouse, significantly enhance light, increase temperature, reduce disease, increase production. At the same time, the reflective film also reduces the heat storage capacity of the greenhouse back wall, reducing the temperature in the greenhouse in the early morning, generally hanging reflective film on the back wall of the greenhouse, and conditions can try to use up and down the reflective film can change the area of ​​light This will make the rear wall heated evenly and increase the heat storage capacity of the back wall without causing the temperature in the greenhouse to drop too early in the morning. After using a good translucency or non-drop film, it is also necessary to scrub and clean the film in time, and it is generally cleaned every two weeks in winter. Even in the coldest days, we must properly expose the light. Dehydrated Potato,Dehydrated Potato Powder,Dehydrated Potato Chips,Dehydrated Potato Strips Xinghua Lvwei Foods Co.,Ltd , https://www.lvweifoods.com