Film mulching cultivation can obtain good results of early maturity, high quality and high efficiency. As the plastic film on the market now comes from different manufacturers, the thickness and price are quite different, the quality is also uneven, and some plastic films have quality problems. Therefore, farmers must pay attention to selecting good quality plastic film when purchasing. How to choose?
A look at the certificate and production date to buy plastic film, not only depends on the product certification, but also see the shelf life, agricultural film effective quality assurance period of 1 year, try to buy a film closer to the date of production. Because the agricultural film will age over a long period of time, it will shorten its service life and even lose its protective effect.
Second, look at the appearance of the quality of the market, some plastic film due to the aging of production equipment, raw materials failed, technology and other reasons, resulting in non-uniform thickness of the film, in the use of thin areas prone to damage, affect the insulation effect; some plastic film Watermarks or cloud-like markings may occur during production, and even air bubbles, perforations, cracks, etc. may be damaged, and these defects in the mulching film may seriously affect the insulation effect of the mulch. Therefore, when choosing a plastic film, check whether its thickness is uniform and whether the pleats are damaged. The film with good quality has a uniform, uniform, silvery white color, consistent transparency, smooth and bright appearance, uniform thickness, and good horizontal and vertical tensile forces.
Three look at the width of the film to measure the width of the film. Because of different crops, different covering methods require different widths of plastic film, which is too wide to waste and too narrow to be used.
Four to see the thickness of the film should be used thin. Because the thickness of the mulching film has little to do with the effect of increasing production, choosing a thick mulch film will increase the investment cost, and a thin mulch film should be used to reduce the investment cost.
The reflection of five plastic film users must pay attention to the purchase of plastic film, it is necessary to pay attention to the purchase of users generally reflect the use of good, brand-name manufacturers have quality assurance brand plastic film. When buying mulch film, you should ask for an invoice and keep it in order to prevent accidents and protect your rights.
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