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A kind of degradable soil consolidation agent and its preparation method and transplanting method of plant seedlings

A technology of consolidating agent and plant seedlings, applied in the direction of soil conditioning materials, chemical instruments and methods, fertilizer mixtures, etc., can solve the problems of non-degradable, difficult to coat evenly, pollute the environment, etc., achieve high production efficiency and good transplanting effect , the effect of simple operation

Active Publication Date: 2019-04-09
中国林业科学研究院华北林业实验中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the organism of seedlings is quite different from the biomedical organisms, such as the growth temperature of seedlings, the requirements of different seedlings for the pH value of the root soil, the requirements for the moisture of the root soil, and the requirements for the air permeability of the root soil, etc., are determined by It can be seen that biomedical biodegradable adhesives cannot be directly applied to the field of seedling transplanting
Natural polymer material hot melt adhesives such as starch glue, vegetable protein glue and rice bran are also biodegradable, but these biodegradable adhesives are mainly used in wood processing fields such as bonding plywood and fiberboard, so natural polymer materials are hot Melt glue can not be directly applied to the field of seedling transplanting
[0006] Existing soil curing agents are generally used in engineering construction, and are single-item curing for soil, that is, the greater the consolidation strength of the soil, the better, and the firmer the better. If the existing soil curing agents are applied to seedling transplanting , the existing disadvantages are (1) belong to one-way solidification and cannot be degraded; (2) most of the raw materials of soil solidification agent are environmentally unfriendly materials, which will have adverse effects on the growth of seedlings and groundwater;
[0007] The organic solvents used in the existing solvent-based adhesives will directly volatilize into the atmosphere during use to pollute the environment and endanger human health; although the existing hot-melt adhesives do not use solvents, the existing hot-melt adhesives are too fast to bond. It solidifies within a few seconds, and its adhesiveness is higher after melting, so the wettability is poor, and it is difficult to coat evenly, and it is not suitable for large-scale coating and bonding of soil.
In addition, most of the existing hot melt adhesives are non-degradable hot melt adhesives.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] First dissolve 3.08g (1.5%) of KGM in 200ml of 1% glacial acetic acid, make it dissolved and prepare KGM solution, then add 3.20g (1.5%) of CA and 200ml of 1% glacial acetic acid into the KGM solution in turn , the blending temperature was 30° C., the pH was adjusted to 4.06 by adding a 10% NaOH solution, and the blending was stopped after stirring for 40 minutes. The blended solution was poured into a beaker, and the resulting KGM-CA blend was found to be a homogeneous, opaque white gel.

[0060] Using a DV3 viscometer (spindle No. 62, 25°C, 50r / min), the viscosity of the blended solution measured was 696.0mPa·s.

[0061] Fill loose loam to the 3 / 4 place of beaker with the beaker of 500ml, the seedling of a creeper is planted in the beaker, the soil surface is treated flat, then the prepared copolymer solution is directly poured on the surface of the soil. Place the beaker in a laboratory with no wind and no light. Through the side wall of the beaker, it can be seen t...

Embodiment 2

[0063] First 2.04g (1.0%) of KGM was dissolved in 200ml of 1% glacial acetic acid, and then it was dissolved to prepare KGM solution, then 2.12gCA (1.0%) was added to the KGM solution, and the blending temperature was 30°C. The pH was adjusted to 4.07 by adding NaOH solution, and the blending was stopped after fully stirring the reaction for 30 minutes. The blended solution was poured into a beaker, and it was found that the obtained KGM-CA blend was uniform, opaque, with a small amount of white gel, and the solution was slightly yellow and contained a large number of bubbles inside. It can be eliminated after 30 minutes by ultrasonic defoaming.

[0064] Using a DV3 viscometer (spindle No. 62, 25°C, 50r / min), the viscosity of the blended solution measured was 1272.0mPa·s.

[0065] Mix the loose soil with environmentally friendly bentonite cat litter, fill a 500ml beaker with loose loam to 3 / 4 of the beaker, plant a creeper seedling in the beaker, smooth the soil surface, and ...

Embodiment 3

[0067] The KGM of 3.08g (1.5%) is dissolved in the glacial acetic acid of 200ml 1% earlier, is mixed with KGM solution after making it dissolve, then the CA of 3.20g (1.5%) is joined in the KGM solution, blending temperature is 30 °C, adjust the pH to 4.06 by adding NaOH solution with a concentration of 10%, and stop the blending after stirring for 40 minutes. The blended solution was poured into a beaker, and the resulting KGM-CA blend was found to be a homogeneous, opaque white gel.

[0068] Using a DV3 viscometer (spindle No. 62, 25°C, 50r / min), the viscosity of the blended solution measured was 2696.0mPa·s.

[0069]Fill loose loam to the 3 / 4 place of beaker with the beaker of 500ml, the seedling of a creeper is planted in the beaker, the soil surface is treated flat, then the prepared copolymer solution is directly poured on the surface of the soil. Place the beaker in a laboratory with no wind and no light. Through the side wall of the beaker, it can be seen that the cop...

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Abstract

The invention relates to the field of soil consolidation agents, specifically to a degradable soil consolidation agent and a preparation method thereof and a plantling transplanting method. The preparation method of the degradable soil consolidation agent comprises the following steps: dissolving konjac glucomannan and chitosan under an acidic condition, regulating pH to 2.25-4.1, and stirring, wherein the weight ratio of konjac glucomannan to chitosan is 1: 1-1.1. The preparation method of the degradable soil consolidation agent comprises steps of dissolving environment-friendly chitosan andkonjac glucomannan, which are used as main raw materials, under the acidic condition, and regulating to appropriate pH and stirring. The environment-friendly degradable synthesis raw materials are used to synthesize the degradable adhesive (the degradable soil consolidation agent) which is nontoxic to the environment, is pollution-free and can bond soil; and the whole preparation process is greenand safe, is simple to operate, is low-cost, and has high production efficiency.

Description

technical field [0001] The invention relates to the field of soil consolidation agents, in particular to a degradable soil consolidation agent, a preparation method thereof, and a method for transplanting plant seedlings. Background technique [0002] With the aggravation of urban air pollution in our country, increasing the possession of urban green trees will help to improve the urban ecological environment and improve the quality of life of the people. In urban greening work, the survival rate of transplanted seedlings is one of the important criteria for evaluating the quality of afforestation and greening projects. At present, the method of transplanting trees with soil balls is the method with the highest survival rate in transplanting garden seedlings. Yet it is a difficult work again that nursery stock especially big seedling (or big tree) takes seedling with soil. In landscaping, the transplanting of large trees or seedlings with a DBH of 10 cm or more is generall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/32A01G23/04A01G9/029C09K101/00
CPCA01G9/0299A01G23/04C09K17/32C09K2101/00
Inventor 王少丽王然孙丽芳王海霞辛学兵魏东禄杨绪平
Owner 中国林业科学研究院华北林业实验中心