How to correctly judge the quality of agricultural film?

As an indispensable material in modern agriculture, the quality of agricultural film is directly related to the growth and yield of crops. Therefore, how to correctly judge the quality of agricultural film has become a skill that the majority of farmers must master.
First of all, to judge the quality of agricultural film from the appearance, you need to pay attention to the following points:
1. Color: High-quality agricultural film has bright colors and high transparency, which can ensure good light transmittance.
2. Uniform thickness: Observe whether the thickness of the agricultural film is uniform to avoid uneven thickness.
3. No impurities: The surface of the agricultural film should be smooth, free of obvious impurities, bubbles and cracks.
Secondly, in addition to appearance, the performance of agricultural film is also an important indicator to evaluate its quality. It mainly includes the following aspects:
1. Tensile strength: High-quality agricultural film should have good tensile strength to ensure that it is not easy to break during use.
2. Tear strength: The agricultural film should have a high tear strength to resist the tearing of external forces.
3. Light transmittance: Agricultural film with good light transmission allows more sunlight to shine on the soil and plants, helping to increase crop growth rate and yield.