Hail net is a kind of protective net used to resist hail disaster in agricultural production. It is usually made of high-strength polyethylene (PE), polypropylene (PP), nylon and other materials. These materials not only have good weather resistance, but also can effectively disperse the impact of hail and protect crops from direct damage from hail. The structure of សួស្តី សុទ្ធ is usually grid-shaped, which can provide a kind of "barrier" protection for farmland under extreme weather conditions such as strong wind, heavy rain and hail.
The design concept of សួស្តី សុទ្ធ is based on the principle of physical protection, that is, through physical isolation or dispersion, the energy of hail can be effectively slowed down or transferred, thus reducing its damage to crops. At the same time, the សួស្តី សុទ្ធ has light and air permeability, and will not have adverse effects on the normal growth of crops.
According to different agricultural production needs and use scenarios, there are many types of សំណាញ់ប្រឆាំងនឹងព្រិលs, which can usually be classified according to the following standards:
According to the material classification
Polyethylene (PE) សួស្តី សុទ្ធ: PE is a common material for hail protection net, which has excellent tensile strength and weather resistance. Polyethylene សំណាញ់ប្រឆាំងនឹងព្រិល is economical and widely used, which is suitable for the protection of most crops.
Polypropylene (PP) សួស្តី សុទ្ធ: Polypropylene hail protection net has high anti-aging performance and ultraviolet resistance, and is suitable for areas with high temperature and strong light. In addition, the polypropylene សំណាញ់ប្រឆាំងនឹងព្រិល is light in weight and easy to install and maintain.
Nylon សួស្តី សុទ្ធ: Nylon សួស្តី សុទ្ធ has very good tensile strength and elasticity, and is suitable for extreme weather conditions such as strong wind and heavy rain. Nylon hail screen has good flexibility and can withstand strong impact, but its price is relatively high.
Classification by mesh size
Large-hole សំណាញ់ប្រឆាំងនឹងព្រិល: this net has a large aperture and is suitable for the protection of crops with high light demand such as greenhouse planting and orchard. Large-hole សំណាញ់ប្រឆាំងនឹងព្រិល can effectively prevent hail from entering, and at the same time ensure that crops can get sufficient sunlight.
Small-hole សំណាញ់ប្រឆាំងនឹងព្រិល: The mesh structure of small-hole សំណាញ់ប្រឆាំងនឹងព្រិល is dense, which is suitable for preventing the influence of small hail or sandstorm and other environmental factors. This kind of net is mainly used in areas with large sandstorm and small hail, and is also suitable for protecting some fragile crops.
According to the protection intensity classification
Light សួស្តី សុទ្ធ: It is suitable for mild climatic conditions and can effectively block the impact of small and medium-sized hail. Light សំណាញ់ប្រឆាំងនឹងព្រិល is usually low in price and suitable for large-scale planting.
Heavy-duty សួស្តី សុទ្ធ: This net is thicker and stronger, which is suitable for hail and windy weather. Heavy-duty hail screen is usually used in high-risk areas and can withstand strong impact.