Method for producing liquid mulching film for tobacco by using tobacco waste humic acid

Abstract

The invention relates to a method for producing liquid mulching film for tobacco by using tobacco waste humic acid, which comprises the following production material components by mass percent: 35-65% of tobacco waste humic acid, 1-2.5% of activation modifier, 10-35% of filmogen, 2-8% of crosslinking agent, 2-10% of biological insecticide and 2-10% of herbicide. The produced liquid mulching film for tobacco can meet the application requirements of tobacco cultivation, has the characteristics of simple production method, lower production cost and full biodegradability, not only realizes the recycling utilization of tobacco waste, but also protects ecological environment, and meets the harmless requirements of mulching cultivation of mulching film for tobacco.

Description

technical field [0001] The invention relates to a method for producing tobacco mulch, in particular to a method for producing tobacco liquid mulch from tobacco waste humic acid. Background technique [0002] Plastic film mulching cultivation technology is the third largest agricultural production and income increasing technology after chemical fertilizers and pesticides. Plastic mulching cultivation technology for tobacco is one of the main technical measures to increase the yield, income and quality of tobacco leaves. The use of plastic mulch in tobacco cultivation can increase the ground temperature, and has the functions of drought prevention, water retention and moisture conservation. However, due to the non-degradable material of the widely used polyethylene mulch film for tobacco, it is difficult to recycle it due to the aging and fragmentation of the mulch film after it is applied to tobacco cultivation, forming what is often called "white pollution", and correspondi...

AI Technical Summary

Problems solved by technology

The early so-called biodegradable mulch film was starch-modified polyethylene mulch film, which was only partially degraded and could not completely eliminate white pollution.

CN1651495A discloses a biodegradable plastic film for cigarettes and its preparation method, which is prepared by modifying starch and polyvinyl alcohol, but because it uses chemically synthesized polyvinyl alcohol, the production cost is relatively high, and the addition of Other chemical modifiers, product promotion and application are inevitably limited

CN1277228 introduces a production method of liquid mulch, which uses petroleum asphalt and residual oil as raw materials, and the raw materials for the production of mulch are petrochemical materials, the source of which is limited, and will cause harm to the soil to a certain extent

CN1459471A introduces a biodegradable liquid mulch film, which has the disadvantages of inconvenient transportation and relatively high production cost due to its liquid state

CN101445731A introduces a degradable liquid mulch film and its manufacturing method, which uses chemicals, which will cause certain harm to cultivated crops and soil after application

CN101481508A introduces a humic acid multifunctional and degradable black mulch film. Although the liquid mulch film has good application effect, it needs to be melted with hot water, which is not convenient for use in mountainous areas, and the raw materials used are mainly non-renewable resources weathered coal, Lignite and peat, to which chemical pesticides and herbicides are added, can also have certain effects on crops and soil

CN1459471 discloses a liquid mulch film made of straw-humic acid as the main material, which biodegrades into fertilizer and does not pollute the soil, but it has certain deficiencies in the practical application performance of water and moisture conservation

And there is no report about the special liquid film technology for tobacco cultivation