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 salam 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 salam 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 salam 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 doň garşy tors, which can usually be classified according to the following standards:
According to the material classification
Polyethylene (PE) salam: PE is a common material for hail protection net, which has excellent tensile strength and weather resistance. Polyethylene doň garşy tor is economical and widely used, which is suitable for the protection of most crops.
Polypropylene (PP) salam: 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 doň garşy tor is light in weight and easy to install and maintain.
Nylon salam: Nylon salam 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 doň garşy tor: 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 doň garşy tor can effectively prevent hail from entering, and at the same time ensure that crops can get sufficient sunlight.
Small-hole doň garşy tor: The mesh structure of small-hole doň garşy tor 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 salam: It is suitable for mild climatic conditions and can effectively block the impact of small and medium-sized hail. Light doň garşy tor is usually low in price and suitable for large-scale planting.
Heavy-duty salam: 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.