pieces Uncovery spend too much work. In recent years, the use of long fiber nonwoven trials found little in the greenhouse, shed stamped on the non-woven insulation, better than the multilayer film coverage. Greenhouse a good non-woven insulation effect. Using non-woven fabric (size 80-100 g / m) + plastic film covering, usually within crop layer insulation above 8 ℃. Specific methods: Qimian with mulch, ditch covered with straw, then take the shed or in the shed in the greenhouse according melon, eggplant and other vegetables, plant size, evening the first layer of non-woven cover, then cover top layer of film, or first and then covered with non-woven cover film. As outdoor winter minimum temperature at 0 ℃ to minus 2 ℃, small, medium can be maintained for at least shed more than 8 ℃. If you encounter a special cold, can be stamped on top and a thin film layer of non-woven fabrics, even outdoor extreme low temperature dropped to below minus 5 ℃, small in the shed still remain above 5 ℃. Second, the non-woven absorbent strong. Non-woven, no water droplets on the leaves