This standard specifies the terms and definitions, quality requirements, safe use and recycling of agricultural plastic film safety control technical specifications. This standard applies to agricultural production areas, agricultural demonstration areas, agricultural scientific experimental bases, and farmlands, vegetable plots and greenhouses using agricultural plastic film throughout the country. NY/T 1224-2006 Technical Specifications for the Safe Use of Agricultural Plastic Film NY/T1224-2006 Standard download decompression password: www.bzxz.net
This standard specifies the terms and definitions, quality requirements, safe use and recycling of agricultural plastic film safety control technical specifications. This standard applies to agricultural production areas, agricultural demonstration areas, agricultural scientific experimental bases, and farmlands, vegetable plots and greenhouses using agricultural plastic film throughout the country.

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Agricultural Industry Standard of the People's Republic of China
NY/T1224—2006
Technical specification for safety application of agricultural plastic membrane2006-12-06 Issued
2007-02-01 Implementation
Issued by the Ministry of Agriculture of the People's Republic of China
This standard is proposed and managed by the Ministry of Agriculture of the People's Republic of China. Drafting unit of this standard: Environmental Protection Research and Monitoring Institute of the Ministry of Agriculture. The main drafters of this standard: Liu Fengzhi, Xu Ying, Liu Wei, Lin Dasong NY/T1224—2006
1 Scope
Technical Specifications for the Safe Use and Control of Agricultural Plastic Films NY/T12242006
This standard specifies the terms and definitions, quality requirements, safe use and recycling of the technical specifications for the safe use and control of agricultural plastic films
This standard applies to agricultural production areas, agricultural demonstration areas, agricultural science experimental bases, and farmland, vegetable fields and greenhouses using agricultural plastic films throughout the country. 2 Normative References
The clauses in the following documents become the clauses of this standard through the use of this standard. For all dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties who reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated referenced documents, the latest versions apply to this standard. GB/T3830 Soft polyvinyl chloride calendered film and sheet GB/T4455 Polyethylene blown film for agriculture GB/T13735 Polyethylene blown agricultural ground covering film QB/T1257 Soft polyvinyl fluoride blown film QB/T2472 Soft polyvinyl chloride calendered tenter film for agriculture 3 Terms and Definitions The following terms and definitions apply to this standard Agricultural plastic membrane Agricultural plastic film refers to various plastic films used in the agricultural production process for the purposes of cold protection, heat preservation and moisture retention for seedling cultivation and crop growth, including ground film and shed film.
Uncover agricultural plastic membrane refers to the farmland operation of removing all agricultural plastic films, taking them out and collecting them in a centralized manner after the agricultural plastic films have played their heat preservation and insulation roles. 3.3
Degradable agricultural plastic membrane
Degradationable agricultural plastic membrane refers to agricultural plastic films whose various properties can meet the use requirements and remain unchanged during the storage period. After use, they can be degraded into environmentally friendly agricultural plastic films through light action, biological action or the combined action of light and biology under natural environmental conditions. According to their degradation characteristics, there are mainly the following three types: photodegradable agricultural films, biodegradable agricultural films and photo-biodegradable agricultural films. 3.4
Multi-functional agricultural plastic membraneMulti-functional agricultural plastic membrane
refers to agricultural plastic films with new functions such as high transparency, high heat preservation and drip-free elimination, and high-efficiency light conversion. Compared with ordinary agricultural plastic films, the characteristics of multi-functional agricultural plastic films are mainly reflected in aging resistance, dust prevention, anti-fog, heat preservation and long life. 4 Quality requirements
The quality of agricultural soft polyvinyl chloride calendered tenter film should meet the requirements of QB/T2472, the quality of clothing polyethylene blown film should meet the requirements of 1
NY/T1224-2006
GB/T4455, the quality of polyethylene blown agricultural ground covering film should meet the requirements of CT13735, the quality of soft polyvinyl chloride blown film should meet the requirements of QB/T1257, and the quality of soft polyvinyl chloride calendered film and sheet should meet the requirements of GB/T3830. 5 Safe use
5.1 Installation
5.1.1 Before installation and use, agricultural plastic film should be stored in a shaded, dry place to avoid sun and rain. If installed in winter, the agricultural plastic film should be placed at room temperature before installation. 5.1.2 Before opening the agricultural plastic film cover, check the ground conditions of the work site to avoid objects puncturing or scratching the film. 5.1.3 Dirty and rusty components should not be used. The surface of the scaffolding materials should be smooth. Soft materials such as hemp rope should be used for framing. Hard materials such as iron wire and aluminum wire should not be used to prevent tearing of agricultural plastic film. 5.1.4 Clothing plastic film should not be installed when the temperature is too high. 5.1.5 Avoid direct connection between agricultural plastic film and greenhouse components. If it cannot be avoided, white acrylic vinyl should be applied to the connection area, and mixed organic solvents should not be applied. 5.1.6 Avoid direct contact between crops and equipment such as irrigation and gas pipelines and agricultural plastic film. 5.1.7 When splicing agricultural plastic film, the bonding area should be increased to improve the bonding strength to avoid seam slippage during use. 5.1.8 Places with conditions should gradually eliminate ordinary agricultural plastic film, and promote the installation and use of degradable agricultural plastic film and multifunctional agricultural plastic film.
5.2 Film removal
5.2.1 Agricultural plastic film should be removed in time after covering to avoid pollution to the soil environment. 5.2.2 Rice, generally the film should be removed at the 2.5-3 leaf stage. 5.2.3 Wheat, generally the film should be kept at the seedling stage. Winter wheat film removal time should be when the temperature rises to 3℃~4C during the green period. Before removing the film, half-cover and half-remove the film to harden the seedlings for 1d~2d
5.2.4 Corn, for full film cultivation in areas above 1000m above sea level and side film cultivation in areas below 1000m above sea level, the film should be removed at the corn trumpeting stage, or in early and middle July, when the average temperature is stable above 17℃ for 5 consecutive days; for mulch corn cultivated under full film cultivation in areas below 1000m above sea level, the film should be removed at the ploughing stage, 45d after the emergence of corn seedlings, or in early and middle May. 5.2.5 Peanuts, mulch peanuts should be removed during the row closing period, or when the average temperature is 25℃ for 5 consecutive days. 5.2.6 Cotton, the time for removing the film for mulch cotton is generally from the end of June to the beginning of July, before the first irrigation in Xinjiang, weeding, ditching and fertilization, soil cultivation, and irrigation after removing the film. The time of film removal for the three types of seedlings can be postponed appropriately, but should not be later than early July. 5.2.7 Sugar beet: Generally, the film should be removed about 50 days after the sugar beet emerges or before the sugar beet enters the lush leaf cluster period. 5.2.8 Potato: Generally, the film should be removed during the tuber expansion period of potato. 5.2.9 Grape: The film removal time should be arranged when the external temperature reaches the suitable temperature for grape growth, generally when the temperature reaches 27℃~28℃ from late May to early June.
5.2.10 Firewood: Generally, the film should be removed when the temperature is stable above 15℃ and the firewood is about to expose the involucre. 5.2.11 Other crops: The specific time of film removal should be determined according to the needs of the crops. 5.2.12 After determining the best time to remove the film, the specific time to remove the film should be selected as removing the film before driving on a sunny day, removing the film in the morning on a cloudy day, and removing the film after the rain on a rainy day; if the low temperature cold wave is reversed, the film covering time should be extended, and the film should be removed after the cold wave. 6 Recycling and treatment
6.1 Recycling
After using agricultural plastic film, the agricultural film to be used again should be washed, dried, rolled up, and stored in a ventilated, dry, and light-proof place. During the storage period, it should be avoided from exposure to the sun, smoke, and fire. For the surface plastic film that cannot be reused, appropriate methods can be used for treatment or 2
It should be handed over to the recycling department for treatment in time, and should not be randomly piled up in the farmland and exposed to the sun and rain. NYT1224—2006
When using plastic film for clothing that is not easy to decompose and has pollution, after the covering function is completed, the fragments of agricultural plastic film that have been stored should be picked up and cleaned up to prevent the remaining agricultural plastic film fragments from causing harm to the agricultural environment. 6.2 Recycling methods
6.2.1 Mechanical recycling
Mechanical recycling includes: mechanical recycling of film during seedling stage, mechanical recycling after autumn, mechanical recycling of plowing layer and mechanical recycling before sowing. Specific mechanical recycling measures should be determined according to local conditions. For places with conditions, mechanical recycling of agricultural film residues should be actively promoted.
62.2 Manual collection
For farmland where mechanical recycling cannot be implemented, manual collection should be used. For places with bamboo strips, mechanical recycling and manual collection should be combined.
6.3 Treatment
Agricultural plastic film that cannot be reused after recycling can be treated by the following methods. For those that cannot be treated by themselves, they should be handed over to the recycling department for treatment in a timely manner, and should not be treated by covering or burning. 6.3.1 Regeneration
Recycle ethylene methane, propane and refine petroleum by decomposing agricultural plastic film, or add different additives to the agricultural plastic film that cannot be used again according to the different materials to form various new products. 6.3.2 Composting
For degradable agricultural plastic film, it can be mixed with some organic matter (such as leaves, poultry and livestock manure, etc.) and prepared into organic fertilizer after sufficient fermentation.
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