Special weather-proof perforated mulching film for full-film covering and double-ridge furrow sowing

Abstract

The invention relates to a special weather-proof perforated mulching film for full-film covering and double-ridge furrow sowing, which is manufactured by the following raw materials according to weight percent: 60 to 80 percent of Linear low-density polyethylene (LLDPE), 5 to 15 percent of low-density polyethylene (LDPE), 4 to 8 percent of high-density polyethylene (HDPE), 7 to 15 percent of metallocene polyethylene (mPE) and 3 to 6 percent of aging-proof mother stock; and the production process of the perforated mulching film comprises the following steps of: mixing the aging-proof mother stock, the LLDPE, the LDPE, the HDPE and the mPE according to a proportion, plasticizing, extruding, blowing up, drawing, cooling, tightening, spreading, perforating, slitting, rolling, checking and packaging so as to obtain the special weather-proof perforated mulching film for the full-film covering and the double-ridge furrow sowing. According to the special weather-proof perforated mulching filmfor the full-film covering and the double-ridge furrow sowing, the requirement of a weather-proof mulching film that one film is used for two years is met. The service life of the special weather-proof perforated mulching film for the full-film covering and the double-ridge furrow sowing reaches 12 to 18 months. Compared with a common mulching film in covering cultivation, the increase of the yield is as high as 30 to 40 percent. Moreover, the operation of planting is directly carried out according to holes by a user after a film is laid. The time and the labor are saved, and the production cost is lowered. The special weather-proof perforated mulching film for the full-film covering and the double-ridge furrow sowing is a novel product which is beneficial to agricultural tillage.

Description

technical field [0001] The invention relates to an agricultural ground covering film, in particular to a special weather-resistant perforated film suitable for full-film covering double-furrow sowing technology. Background technique [0002] The application of plastic film in agricultural production is an epoch-making progress in the use of solar energy by human beings. It has made great contributions to the realization of the "food and clothing project" and "vegetable basket project" in my country, and has become an indispensable means of production in the two high and one excellent . According to the statistics of relevant departments, the annual consumption of plastic film in my country is more than 1.25 million tons, the covered cultivation area is more than 350 million mu, and the area suitable for plastic film covering cultivation is 700 million mu, and the usage is increasing year by year. However, with the extensive use of medium and low-grade plastic mulch, the thic...

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Problems solved by technology

However, the pollution it forms does not match the principles and policies of sustainable development, energy conservation and emission reduction, and harmonious development advocated by the central government.

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