On the role of non-woven fabric to use on greenhouse vegetable production .

As a new non-woven fabric covering insulation material used in greenhouse vegetable production, and achieved good economic results.
1, insulation: non-woven fabrics for the long-wave light transmittance lower than plastic film. Because the heat radiation area of £¦#8203;£¦#8203;the night mainly by long-wave radiation, therefore, cover the insulation effect is prominent.
2, air humidity control: a nonwoven fabric made of filaments with each other Stacking mesh, it has a high porosity, breathable, permeable, automatically adjust the humidity.
3, shading cooling: The colored non-woven fabric cover, with shading cooling effect. Non-woven fabrics of different colors of shading, different cooling effect. Shading effect is better than black, yellow better than blue.
4, anti-aging: Farm nonwoven fabric after anti-aging treatment, the lower the thicker the fabric strength loss. After Application of farmers, non-woven on greenhouse vegetable production is mainly used in the following areas:
(1) As used in grass thatch shed shed bottom surface of the "two" many shanty insulation material, not only covering the grass thatch, and grass thatch also adds a layer of non-woven bottom. According to farmers introduced by adding "two" insulation material (non-woven), can significantly improve the greenhouse insulation properties than pure grass thatch covering up 2 ¡æ -3 ¡æ, thereby facilitating the growth of vegetables. In addition, the use of rolling machines Greenhouse nonwoven applications, but also to protect the grass thatch, extending its life.
(2) used in the solar greenhouse on the wall as a "slope" of rain nonwoven material pieces stitched together the entire back wall wrapped and secured with a wire, the back wall can reduce heat loss; rain and snow can the protection wall; weeding can cover, reduce pests and diseases into the shed damage.
(3) use other applications on a multi-film covering the early spring Shed watermelon production, the nonwoven fabric may be directly coated on the inside of the small shed Shed, cold insulation effect is prominent.