Application of non-woven fabric in vegetable production

Non-woven fabrics are also known as harvest fabrics. It is a long-fiber non-woven fabric, which is a new covering material with good air permeability, moisture absorption and certain light permeability. Non-woven fabrics are divided into thin type, thick type and thick type. The product name is usually expressed in grams per square meter, such as 20 grams of non-woven fabric per square meter, 30 grams of non-woven fabric per square meter, and 40 grams of non-woven fabric per square meter. and many more. The thickness of the non-woven fabric is different, the water permeability, shading rate, and air permeability are different, and the covering method and use are also different. Generally, the thin non-woven fabric of 20-30 g/m² has high water permeability and air permeability, and is light in weight. It can be used for covering the floating surface in the open field and the greenhouse, and can also be used for the open field small arch shed, the large shed, the thermal insulation screen in the greenhouse, It has the function of heat preservation and can increase the temperature by 0.7～3.0℃. 40-50g/m2 non-woven fabrics for greenhouses have low water permeability, high shading rate and heavier quality. They are generally used as thermal insulation screens in large sheds and greenhouses. They can also be used instead of straw curtain covers to cover the small sheds to enhance heat preservation. . Such non-woven fabrics for greenhouses are also suitable for shade seedling cultivation and cultivation in summer and autumn. Thickened non-woven fabric (100-300 g/m2) replaces straw curtains and straw thatch, and is used with agricultural film for multi-layer coverage in greenhouses and greenhouses. According to research, the non-woven fabric used to cover the greenhouse has a better thermal insulation effect than the straw curtain, and it is lighter than the straw curtain, and it is easy to manage. It is expected to realize mechanized or semi-mechanized uncovering.


Non-woven fabrics have long been widely used in developed countries such as Japan, the United States, the Netherlands, and Canada. The introduction of non-woven technology in my country has not been long. At present, the types and specifications of the products are relatively small, the prices are relatively high, and the quality is lagging behind similar foreign products. At the same time, the research and promotion of covering technology has not been done enough. Therefore, , So far the promotion area is not large. However, with the improvement of the production technology of non-woven fabrics and the further improvement of covering technology, non-woven fabrics will be widely used in the development of vegetable off-season cultivation.