A kind of mulching film preparation method used in fruiting period of crisp pear

Abstract

The invention discloses a preparation method of mulching film for the crisp pear fruiting period. The preparation method comprises the following steps that irradiation degradation is carried out on polylactic acid, air exhaust and degassing are carried out, sepiolite and a silane coupling agent are added, grinding is carried out, then polyvinyl chloride wax is added, and stirring is carried out toobtain a prefabricated material; the prefabricated material and polyethylene succinate are stirred and then warmed up, a plasticizer, a cross-linking agent and a heat stabilizer are added for continuous stirring, then warming is carried out, a photoinitiator and filler are added for continuous stirring, then the stirring state is reduced to the room temperature, and film blowing is carried out toobtain the mulching film for the crisp pear fruiting period. The mulching film has the advantages that the tear resistance, shock resistance and mechanical property are excellent, the cultivation effect of sand field mulching can be simulated, the evaporation loss of soil moisture is effectively reduced, the growth of pear trees is promoted, the accumulation of sugar in crisp pears is effectivelypromoted, the quality of the crisp pears is improved, the mulching film can be fully degraded under the natural condition, the degraded components can serve as manure to return to nature and improvesoil, a loose and porous structure is formed, and the breathability and water permeability of the soil are improved.

Description

technical field [0001] The invention relates to the technical field of agricultural mulching film, in particular to a method for preparing a mulching film used in the fruiting period of crispy pears. Background technique [0002] Suli pears are originally produced in Dangshan, Anhui. They are the oldest local pear varieties. They are juicy and crisp, rich in nutrition and pollution-free. Suli pears contain sugar, minerals, organic acids and various vitamins, and are extremely nutritious. It is a rare and good product among fruits. Besides being eaten fresh, it can also be processed into pear wine, pear paste, pear sugar and canned food, etc. It is an important raw material for the food industry. [0003] Pears are rich in B vitamins, which can protect the heart, reduce fatigue, enhance myocardial vitality, and lower blood pressure; glycosides and tannic acid contained in pears can eliminate phlegm and cough, and have a maintenance effect on the throat; Pears also have more ...

AI Technical Summary

Problems solved by technology

[0004] The planting of pears has a special dependence on the soil. Sustained development of pears and stable growth of productivity must first ensure the persistence of good soil. Planting pears should try to choose soil with deep soil, fertile soil, and loose soil. And the use of sandy soil covering cultivation can effectively reduce the evaporation loss of soil water, alleviate the inhibitory effect of poor water on the growth of fruit trees, and promote the healthy growth of fruit trees. Sandy soil covering can also increase the temperature difference, effectively increase the accumulation of sugar in the fruit, and promote fruit growth. The quality is improved, but the sandy soil cover is not only a large project, but also the covered sand is easy to lose due to natural disasters. If it encounters windy, rainy and other harsh environments, the sandy soil will be lost, which will directly lead to a decrease in the yield of crispy pears, and the taste of the crispy pears obtained is also very poor.

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