Bio-organic fertilizer capable of efficiently degrading full-biodegradable mulching film with PBAT and starch as raw materials and preparation method of bio-organic fertilizer

Abstract

The invention provides a bio-organic fertilizer for efficiently degrading a full-biodegradable mulching film using PBAT and starch as raw materials and a preparation method of the bio-organic fertilizer, and the bio-organic fertilizer is prepared from the following raw materials in parts by weight: 20-30 parts of animal waste, 15-20 parts of straw, 5-8 parts of zymophyte, 10-20 parts of a functional fungicide, 3-5 parts of urea, 1-2 parts of trace elements, 0.5-1 part of an antiviral agent, 4-5 parts of a pH regulator. According to the invention, microorganisms capable of promoting degradation of the full-biodegradable mulching film are added into the bio-organic fertilizer, so that the bio-organic fertilizer capable of efficiently degrading the full-biodegradable mulching film which takes PBAT and starch as raw materials is finally obtained. The agricultural wastes are converted into nutrients which can be provided for crops, meanwhile, degradation of the full-biodegradable mulching film covering the farmland is promoted, the physicochemical property of farmland soil is improved, a proper growth environment is provided for the crops, and certain theoretical basis and technical support are provided for practical application of the full-biodegradable mulching film.

Description

technical field [0001] The invention relates to the field of preparation of bio-organic fertilizers in degradable bio-degradable plastic films, in particular to the preparation and development of bio-organic fertilizers that can efficiently degrade bio-degradable plastic films using PBAT and starch as raw materials. Background technique [0002] Fully biodegradable mulch is a type of plastic mulch that can be completely degraded into carbon dioxide, water and other inorganic salts under natural conditions. It is usually made of polybutylene adipate / terephthalate (PBAT), polylactic acid (PLA), Made of polycaprolactone (PCL), polyhydroxybutyrate (PUB), starch and other raw materials, it has the characteristics of heat preservation, moisture retention, moisture retention, improvement of soil physical and chemical properties, fertilizer retention, and weeding. Fully biodegradable mulch can be completely degraded into CO under natural conditions 2 , water and inorganic salts, be...

AI Technical Summary

Problems solved by technology

[0006] In view of the above defects, the present invention provides a preparation and development plan for a bio-organic fertilizer that can efficiently degrade the fully biodegradable mulch film using PBAT and starch as raw materials, so as to solve the problem that the degradation rate of the fully biodegradable mulch film in the above background cannot be degraded. control, high recycling cost, and affecting the quality of farmland soil

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