What is the standard of greenhouse film? How to choose suitable greenhouse film

1. greenhouse membrane standard is what?

Greenhouse film is a large plastic film used to cover agricultural production, which can provide heat preservation and moisture retention and prevent crops from being affected by bad weather. According to different uses, the greenhouse film has different materials and specifications, mainly including polyethylene greenhouse film, EVA greenhouse film, PO greenhouse film, etc.

The standard of greenhouse film has the following aspects:

1. Light transmittance: The light transmittance of the greenhouse film must reach the agricultural practical standard, generally about 80%-90%, to meet the needs of normal crop growth.

2. Thickness: The thickness of the greenhouse film determines its durability and tensile strength. The general thickness is 0.08 mm-0.2mm. The specific thickness selection needs to vary according to the environment in which the greenhouse is used and the crops planted.

3. Anti-aging: The durability of the greenhouse film is also one of the factors that need to be paid attention to when purchasing. It generally has the characteristics of anti-ultraviolet and anti-aging, which can improve its service life to a certain extent.

2. how to choose suitable for the greenhouse film?

1. According to the use of greenhouse environment selection: the primary consideration of the purchase of greenhouse film is the use of greenhouse environment, such as climatic conditions, temperature range. Generally speaking, the cold climate needs to choose the greenhouse film with heat preservation and cold resistance effect, while the hot climate needs to choose the greenhouse film with high temperature resistance and aging resistance effect.

2. According to the crop selection: for different crops, the selection of greenhouse film should be different. For example, tropical fruits and vegetables such as eggplants and peppers need to choose a more transparent greenhouse film to provide sufficient sunlight and temperature, while crops such as grapes that need to be pruned regularly need to choose a more durable greenhouse film to avoid tearing and affecting the pruning effect.

3. Pay attention to the quality of the greenhouse film: When purchasing the greenhouse film, choose a regular manufacturer to ensure the quality and effect of the product. At the same time, in order to avoid buying fake and shoddy products, it is recommended to see clearly the manufacturer, model, production date and other relevant information of the product when purchasing.