Biodegradable mulch with compound function

Abstract

The invention relates to biodegradable mulch with a compound function, which takes the biodegradable mulch as a carrier. A functional preparation is sprayed on one surface of the mulch so as to form the functional biodegradable mulch; and the biodegradable mulch comprises the following components based on weight percentage: 33-68% of master batches, 30-65% of 7042 and 5-7% of 1F7B, and the functional preparation is insecticide or herbicide or nutrient solution. The biodegradable mulch has the positive effects as follows: the surface of the biodegradable mulch can be directly compounded with an oily, milky and / or humid powder functional preparation; the mulch can effectively and slowly release the insecticide, the herbicide and the nutrient solution so as to achieve better effects in killing insects, weeding and providing nutrition for crops; the mulch can adapt to different climate and soil environments, and meet the requirements of heat preservation and soil moisture conservation of different crops; after completing functional actions, the mulch can be automatically degraded without pollution; and the mulch has the advantages of convenient use and lower cost, thus obviously improving the agricultural production efficiency.

Description

【Technical field】 [0001] The invention relates to the technical fields of chemical engineering and biological materials, and relates to the preparation of a functional biodegradable plastic film, specifically, a biodegradable plastic film with composite functions. 【Background technique】 [0002] Insecticide, weeding and fertilization of crops are necessary field operations. These field operations all have certain time and condition restrictions, such as the restrictions of season, temperature and rain. During the mulching period of ordinary plastic film, limited by the persistence of insecticides and herbicides, it is impossible to effectively kill the pests in the hatching stage and the weeds in the seedling stage in the farmland soil. If the functions of insecticide, weeding and fertilization can be directly compounded on the biodegradable mulch, because it can avoid the erosion of rainwater and the strong volatilization under the sun, it can make insecticides, herbicides...

AI Technical Summary

Problems solved by technology

[0003] Since the current mulch films are all polyethylene mulch films, it is impossible to compound insecticides, herbicides, and nutrient solutions on their surfaces with oily, milky, and wet powders, so it is impossible to produce functional mulch films with the above effects

However, the functional mulch film based on biodegradable mulch film is difficult to manufacture, and there are no mature biodegradable mulch film products with composite functions on the market.

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