Application of Non-woven Fabric in Vegetable Greenhouses

Agriculture non-woven fabric, as a new type of covering and thermal insulation material, is used in the production of shed vegetables and have achieved good economic benefits.

Ⅰ. The characteristics of non-woven fabric applications

1. Heat preservation

Non-woven fabrics have lower transmittance to long-wave light than plastic films. Because the heat dissipation in the radiation area at night mainly relies on long-wave radiation, the heat preservation effect is outstanding.

2. Breathable and humidity control

The non-woven fabric is made of filaments stacked on each other into a net shape, has a high porosity, is air-permeable, water-permeable, and automatically adjusts the humidity.

3. Shading and cooling

It is covered with colored non-woven fabric, which has the effect of shading and cooling. Different colors of non-woven fabrics have different shading and cooling effects. Black is better than yellow, and yellow is better than blue.

4. Anti-aging

The agriculture non-woven fabric has undergone anti-aging treatment, and the thicker the fabric, the lower the strength loss rate.

Ⅱ. Application of agriculture non-woven fabrics in the production of vegetables in the greenhouse after the practice of vegetable farmers

1. Used at the bottom of the grass thatch as a "secondary" thermal insulation material

Many shanty houses not only covered the grass thatch, but also added a layer of non-woven fabric to the bottom of the grass thatch. According to the vegetable grower, by adding "two-layer" thermal insulation material (non-woven fabric), the thermal insulation performance of the shed can be significantly improved, which is 2°C-3°C higher than that of the simple covering grass thatch, which is conducive to the growth of vegetables. In addition, the application of agriculture non-woven fabrics on the shed using the roller shutter machine can also protect the grass thatch and prolong its service life.

2. Used on the back wall of the greenhouse as a "slope protection" rainproof material

Use multiple non-woven fabrics to stitch together to wrap the entire back wall and fix it with steel wires to reduce heat loss in the back wall; it can prevent rain and snow and protect the wall; it can be covered and weeded to reduce pests and diseases entering the shed.

3. Other applications

Used in the production of early spring arched watermelon covered by multiple membranes, agricultural non-woven fabrics can be directly covered on the small arched sheds in the arched sheds, which has outstanding thermal insulation and cold-proof effects.