PE (polyethylene) or PP (polypropylene) resin mulching film hollow plastic spheres for arid and semi-arid region and using method of hollow plastic spheres

Abstract

The invention discloses PE (polyethylene) or PP (polypropylene) resin mulching film hollow plastic spheres for an arid and semi-arid region and a using method of the hollow plastic spheres. A main rawmaterial of the mulching film hollow plastic spheres is PE or PP resin, a certain amount of carbon black is added to the resin, heat-absorbing and thermal-insulating effects can be realized, the thermal-insulating effect of a mulching film is improved, and a certain quantity of paraffin, a light stabilizer and an antioxidant are added, so that the degradation cycle is prolonged; the mulching filmhollow plastic spheres are uniformly arranged and buried in the farmland by a feeding machine to form the mulching film, a thermal-insulating layer is formed, the mulching film can prevent evaporation of moisture, reduce volatilization amount of moisture and guarantee soil moisture, has a function of inhibiting weed growth and saves construction cost of the farmland; the plastic spheres can be convenient to recycle without microplastic residues, the pesticide spraying link is omitted, the pollution problem of pesticide residues is solved, the long-term investment is low, and the cost is low.

Description

technical field [0001] The invention relates to the field of agricultural production, in particular to a polyethylene or polypropylene resin mulched hollow plastic ball used in arid and semi-arid areas and a use method thereof. Background technique [0002] In China's northern agricultural production areas, the biggest problems are water shortage and weed control. The lack of water means that there is little rain; the second is the lack of effective water sources; the third is that the evaporation is too large, often greater than the rainfall, leading to drought, and this part of the ecosystem is very fragile. For weed control, the efficiency of manual weeding is low, and it is easy to kill weeds; the second is that chemical weeding has unreasonable application and residual problems, and is limited by natural conditions; the third is that biological weeding is expensive and has a narrow range of application. [0003] The above problems have caused the production in the nort...

AI Technical Summary

Problems solved by technology

However, due to the non-degradability of polyethylene mulch, it has brought serious troubles after use. One is the visible residue of the mulch, the other is the problem of invisible microplastics, and the third is that there are still invisible organic chemicals in the farmland. - plasticizer

Although the government tries to recycle the residues of plastic film, but due to cost and technology constraints, there is basically no good way to completely solve the problem of agricultural film residues

[0005] In the future, polyethylene mulch will continue to be used. First, the microplastics formed by polyethylene mulch will gradually enter the cycle of the biological world. The future environmental risks cannot be assessed for the time being. Second, with the continuous accumulation of microplastics in farmland, it is likely to cause soil waste. Cultivated land will gradually lose its farming value