Peanut-specific double-effect in-one degradable mulch film

Abstract

The invention discloses a special double-effect in-one degradation film for peanuts. The degradable film is prepared by mixing the base resin of the film and a special double-effect in-one degradation additive for peanuts at a mass ratio of 100:4.315-11.42; the special double-effect in-one degradation additive for peanuts The autoxidation component A-soybean oil containing more than 80% unsaturated fatty acid, the oxidation-promoting component B-partially neutralized maleic anhydride-potassium acrylate or sodium salt, the oxidation catalyst component C-potassium permanganate fine powder , degradation control component D-benzoxazole-based fluorescent whitening agent OB and infrared blocking component E-Mg 3 Si 4 o 10 (OH) 2 constitute. The invention can make the bare exposed part of the mulch film have a degradation induction period, and the buried light-shielded part can have long-term sustainable degradability, which is beneficial to the growth and development of peanuts and the environmental protection of soil.

Description

technical field

[0001] The invention relates to the field of agricultural applications, in particular to a double-effect-in-one degradable mulch special for peanuts. Background technique

[0002] Peanut is an oil crop with high economic value. Since 2008, the planting area of ​​peanut in the west of Jilin Province has continued to expand, with an annual growth rate of 40% to 50%. .

[0003] During the growth period of peanuts, it is necessary to maintain sufficient ground temperature and good moisture to meet the growth and development needs of peanuts. The degradation induction period of about 90 days is required for the degradation of plastic film. It can be seen that the control of the degradation time of the mulch film is important.

[0004] The resin raw material used in the mulch film is mainly polyethylene. It takes hundreds of years to decompose naturally in the natural environment. The accumulation of residual film in the soil has caused the pollution of farmland ...