Peat humic acid degradable liquid mulching film containing rare-earth micro-element fertilizers and anti-freezing agents

Abstract

The invention discloses a preparing method and application of a peat humic acid degradable liquid mulching film containing rare-earth micro-element fertilizers and anti-freezing agents. The preparing method includes the technological steps that after fine selection and sundry removal are carried out on peat humic acid, the peat humic acid is smashed into powder ranging from 80 meshes to 400 meshes, raw materials are evenly stirred according to the weight ratio that the peat humic acid: mulching film-forming agents: cross-linking agents: the anti-freezing agents: rare earth: annexing agents: water = 3-10:1-5:0.2-1:0.5-1:0.1-1:0.2-0.5:30-60, the raw materials are reacted for 0.5 hours-2 hours at 20 DEG C-90 DEG C, and the peat humic acid degradable liquid mulching film containing the rare-earth micro-element fertilizers and the anti-freezing agents is generated. The peat humic acid degradable liquid mulching film has the good warming performance and the good low-temperature-resistant performance; when hot water cannot be provided due to condition limitation, cold water can be directly used to be evenly stirred with the raw materials to be sprayed to form the mulching film, and complete degradation can be achieved after the peat humic acid degradable liquid mulching film is used for 2-3 months.

Description

technical field [0001] The invention provides a peat humic acid degradable liquid mulch film containing rare earth micro-fertilizer and antifreeze, which belongs to the field of agricultural production application. Background technique [0002] In order to achieve the purpose of increasing agricultural production and income, the cultivation technology of using plastic mulch has been adopted by farmers. However, the "white pollution" problem of agricultural plastic mulch residues is difficult to solve, which seriously threatens the safety and sustainable development of agriculture. The most feasible way to reduce the residue of farmland mulch film, protect the ecological environment of farmland, and eliminate the white pollution of plastic mulch film is to develop and Use biodegradable mulch. As a liquid mulch film with great market application prospects, it has aroused great research interest. [0003] Humic acid is an organic macromolecular compound that exists widely in ...

AI Technical Summary

Problems solved by technology

However, no matter whether it exists in a liquid state or is made into a powder that is easy to transport, there are still some problems that need to be improved. For example, it needs to be heated to a higher temperature or use hot water during the reaction, which brings certain difficulties to the actual operation; when used in spring , the low temperature at night is likely to cause membrane rupture; the heating performance needs to be further improved, etc.