First, what is the qualified standard of agricultural mulch?
Agricultural mulch film is an important agricultural planting material. Qualified agricultural mulch film not only ensures a good growing environment for crops, but also saves the cost of water and pesticides. According to the national standard GB/T 17643-2011 “Ground Film”, the main quality indexes of agricultural ground film include the following:

1. Thickness: generally required between 0.008mm-0.03mm, the thickness of different specifications of agricultural mulch film varies.

2. Tensile properties: the maximum tensile force of the specimen before rupture is required to be certain, while also having a certain degree of extensibility.

3. Light transmission performance: agricultural film must have a certain degree of light transmission to meet the photosynthetic needs of crops.

4. Airtightness: the airtightness of the agricultural film must be good to prevent soil moisture loss.

5. Thermal shrinkage: after the specimen is preheated in the oven, the degree of retraction must not exceed 29%.

Second, how to select high-quality agricultural film?
Selection of high quality agricultural mulch film is vital to the growth of crops, the following are a few key points you need to pay attention to when you buy agricultural mulch film:

1. Thickness: according to the needs of different crops to choose a different thickness of agricultural film. Usually buy the film thickness to 0.015mm-0.025mm is appropriate.

2. Light transmittance: light transmittance is also one of the important performance indicators, good light transmittance of the film is conducive to crop growth, it is recommended to buy light through the agricultural film.

3. Air tightness: better air tightness of the film is not easy to crack, leakage and other problems, can better maintain soil moisture.

4. Brand: most of the high-quality agricultural film from well-known brands, it is recommended to purchase brand-name products with credibility assurance.

5. After-sales service: If there is a quality problem after the purchase of agricultural film, you need to get after-sales service and support, it is recommended to buy a brand with perfect after-sales service.

In short, choosing a high-quality agricultural film can not only improve crop yields, but also have a positive impact on the environment.

Translated with DeepL.com (free version)