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Prospects of two key products for agricultural plastics

Prospects of two key products for agricultural plastics

Agricultural film is a product used in agricultural production to protect plants from water loss and other measures. With the advancement of science and technology, the requirements for agricultural films are becoming higher and higher, and various new films are constantly emerging. In economically developed countries, the amount of agricultural plastic film accounts for more than 50% of all agricultural polymer products.

The agricultural film (the main component is PE) is an important agricultural production material after seeds, fertilizers and pesticides. Its application has brought a revolution to agricultural production, and has made important contributions to agricultural efficiency and farmers' income. Agricultural films mainly include modern agricultural covering materials such as shed film and mulch film, forage film, shading nets, and insect nets. It is understood that China's agricultural film output has ranked first in the world. In 2009, agricultural film output reached 960,600 tons, which is 1.6 times the total of other countries in the world. The comparison between 2013 and 2009 almost doubled to 1.873 million tons. At present, the annual amount of various shed films in China is about 1.5 million tons, and the annual update demand is about 700,000 tons. Commonly used films are polyvinyl chloride film, polyvinyl chloride non-drop film, polyethylene film, polyethylene non-drop film, polyethylene multifunctional composite film, and EVA multifunctional composite film. Among them, China ’s mulching film covers an average annual increase of about 666,700 hectares. At present, it covers more than 13 million hectares. The actual consumption of mulching film is about 450,000 tons per year, ranking first in the world. About 37 million hectares of farmland covered by plastic film are suitable for promotion in China. With the rapid development of agricultural science and technology, the demand for mulch film will continue to grow.

At present, the country's high-grade agricultural film accounts for only 2% of the total agricultural film production, mid-range agricultural film accounts for 20%, low-grade agricultural film accounts for 78%, and over-supply of low-grade agricultural film products. 50%, low-grade agricultural film products account for only 30% of the horizontal distance. Modern agriculture is developing towards intensification, industrialization, internationalization, and specialization. The layout of China's agricultural industry will also develop toward regionalization and specialization. The industrial center will continue to develop into advantageous production areas. Intelligent. At the same time, China has a continental monsoon climate and is suitable for the development of facility horticulture. The diversification of cultivation and horticulture will become a new growth point for the horticulture industry. By 2014, the area of horticultural facilities nationwide will increase to 3 million hectares, the proportion of functional shed film will account for more than 40% of the annual sales of shed film, and the cultivation area covered with plastic film will be expanded to Above 20 million hectares, the annual consumption of mulch film will increase to about 780,000 tons; the area of special greenhouses for animal husbandry and aquatic products will be expanded to about 100,000 hectares, and the annual demand for ammoniating, silage, and wrapping film will reach about 300,000 tons.

With the continuous expansion of the agricultural film market and the needs of the industry, from the initial single PE film, a variety of thin films have been continuously developed, mainly including high-light energy series agricultural films, rare earth-to-light agricultural films, high-efficiency dimming ecological films, and more. Functionally degradable liquid film, modified agricultural plastic greenhouse film, new environmentally friendly liquid agricultural film, paper film, etc.

Prospects of agricultural films in the development of modern agriculture

 With the rapid development of many information technologies, such as computer technology, communication technology, and microelectronics technology, and the rapid promotion of system applications in agriculture, in the process of China's agricultural transformation to modern agriculture, information technology has been more effective and efficient in developing and Utilizing agricultural information resources, enhancing agricultural competitiveness, and promoting the sustainable development of agricultural economy play an increasingly important role. At present, China's agricultural film market is showing an accelerated development trend, and its application scope is gradually expanding. The promotion and use of high-grade functional films has become a climate. The product structure of shed film will develop to multi-layer composite, and its performance will be highly functional, such as high light transmission, high thermal insulation, high strength, long life and continuous drip period, anticorrosion period, light conversion period, dustproof period, and antibacterial period. Development in the direction of integration; mulching film will develop functions such as protection of moth, warming, weeding, and insect control; special agricultural films for different varieties will also develop. According to reports, more than half of the planting area suitable for agricultural film coverage in the country is still blank; the proportion of functional film accounts for only 30%, compared with 80% in foreign countries; and the output of high and middle-grade agricultural film cannot meet the market needs. It can be seen that the development prospects of China's agricultural film industry are very broad and the market potential is huge.

Key issues urgently to be resolved, recycling issues need to focus on R & D

With the large-scale application of mulching film and drip irrigation technology in field crops, recycling has become an urgent problem to be solved. The rapid development of agricultural mulching film and drip irrigation water-saving markets has driven the use of two products very much. The mulching film and drip irrigation belt are basically products used for one year. If the crop is not recycled in time, the impact on the crop will be extremely serious, which will definitely affect the use in the coming year.

 Recycling of agricultural film has attracted more and more attention in recent years. However, due to the small amount of recovery or incomplete manual recovery, the residual film buried in the ground has become an important unfavorable factor affecting the soil quality and subsequent crop growth. How to solve the problem of agricultural film recycling and reuse is a problem that has begun to be taken seriously at the national level, and new standards and development directions have been discussed. At present, research directions on the market include increasing the thickness of the film to achieve reliable recycling and avoiding the generation of residual film. The other direction is to use degradable mulch to reduce the possible adverse impact of residual film on the environment.

If the drip irrigation belt remains in the soil, it will also affect the soil structure and crop growth. The recovery and reuse of the drip irrigation belt is an important measure to reduce the investment of drip irrigation and save costs, and it also has positive significance for soil protection. At present, the recovery of drip irrigation belts is mainly manual recovery, which requires a large amount of labor and low operating efficiency, which increases the corresponding recovery cost. Moreover, the recovered coils are loose, which is not conducive to removal and storage. Solving the recovery of drip irrigation belt is the key to the long-term and sustainable application of drip irrigation belt technology. It is also a major issue related to the use of land productivity and the benefit of future generations.

Agricultural PVC pipes need standard development

Among plastic pipes, the amount of agricultural PVC pipes has been far ahead. It is mainly used in drip irrigation and agricultural film laying. As the main water supply pipe, it is buried underground and requires a 50-year warranty period. Drip irrigation pipes and agricultural films are used for one year. The use period requires continuous recycling and utilization to avoid environmental pollution.

It is worth noting that there are still many problems that need to be solved in the PVC pipeline industry. As PVC pipe technology is relatively mature, investment in product innovation has been modest in recent years, and relatively few new products have been made. There are many general products in the market, but few high-tech and high-value-added products. Similar general-purpose products and low-end products of the middle grade account for the majority. The inadequacy of industry and product publicity and popular science has affected the reasonable use and expansion of the scope of plastic pipes. The market is not standardized, and the quality of some companies' products is poor, which affects the healthy development of the industry. Some buyers are not the end users of the products, they do not pay attention to the brand and quality, and often the products with low price differences occupy the largest market share. PVC-U pipes are particularly severe. Of the cost of PVC-U pipelines, the material cost often accounts for about 70%. Some companies reduce product costs by reducing wall thickness and increasing the amount of calcium carbonate added, resulting in poor product quality, harming the rights and interests of users and deteriorating To improve the image of the industry, it is necessary to improve industry management and rectification.

 Agriculture is the primary industry related to national economy and people's livelihood. Plastic products supporting agriculture have made significant contributions to increasing agricultural production, off-season sales, and improving the quality of agricultural products. In the future, the agricultural application market will continue to bring huge development opportunities for the plastics industry. Producing high-quality products and providing high-quality and reliable products for the agricultural market is not only the fundamental prerequisite for the sustainable long-term stable development of the agricultural plastics industry, but also the conscience of each manufacturer or business.

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