How to use non-woven fabric in greenhouses?
May 29, 2023
As a new kind of covering and insulation material, non-woven fabric has been used in vegetable production in shed and obtained better economic benefits.
1. Heat preservation.Non-woven fabric for long - wave light transmittance is lower than plastic film.Because the heat dissipation of the radiant area at night mainly depends on the long-wave radiation, so the covering insulation effect is outstanding.
2. Breathable and moisture-adjusted.Non-woven fabric is composed of long filament interlayed into a network, has a high voidage, breathable, permeable, automatic humidity regulation.
3, shading and cooling.Colored non - woven cloth covering, with shading and cooling effect.Different colors of non-woven fabric shading, cooling effect is different.Black is better than yellow, and yellow is better than blue.
4, anti-aging.Agricultural non-woven fabric after anti-aging treatment, the thicker the cloth strength loss rate is lower.
Through the application practice of vegetable farmers, non-woven fabric is mainly used in the following aspects in vegetable production in shed:
➤ Serve as the "two path" insulation material at the bottom of straw mat.The greenhouses of many shanty houses are not only covered with straw mat, but also add a layer of non-woven fabric at the bottom of it.According to vegetable farmers, by adding "two" insulation material (non-woven fabric), can obviously improve the shed insulation performance, than simply cover grass mat is 2℃-3℃ higher, thus conducive to vegetable growth.In addition, the application of non-woven fabric on the shed using the curtain machine can also protect the grass mat and extend its service life.
➤ Serve as "slope protection" in the rear wall of greenhouses.The whole back wall is wrapped up with a number of non-woven fabric stitched together, and fixed with steel wire, which can reduce the heat loss of the back wall;Can prevent rain and snow, protect the wall;Can cover weeding, reduce pests and diseases into the shed harm.
➤ Other apps.Used in the production of multi-film covered watermelon in the early spring arch shed, the non-woven fabric can be directly covered on the small arch shed in the arch shed, heat preservation and cold prevention effect is outstanding.
