Soil improvement agent, and preparation method thereof

A soil improver and modification technology, which is applied in the direction of soil conditioning materials, chemical instruments and methods, and other chemical processes, can solve the problems of soil nutrient element imbalance and soil compaction, so as to improve acidity, reduce soil compaction, and enrich nutrients Effect

Active Publication Date: 2019-01-11
INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem that adding a large amount of inorganic components, such as quicklime, zeolite powder, etc., in the existing acidic soil improver can easily cause soil compaction, and then lead to the imbalance of soil nutrient elements, and then provide a new soil improver and its preparation method

Method used

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  • Soil improvement agent, and preparation method thereof
  • Soil improvement agent, and preparation method thereof
  • Soil improvement agent, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A soil conditioner consisting of the following raw materials:

[0037] 60kg of corn stalk powder, 15kg of walnut shell powder, 20kg of decomposed sawdust, 8kg of modified cyclodextrin, and 2kg of sodium secondary alkyl sulfonate.

[0038] The preparation method of the decomposed sawdust is as follows: sawdust, coconut shell powder and chitosan are mixed uniformly in a mass ratio of 300:30:5, then add 0.6% organic material decomposing agent of the total weight of the mixture, and then adjust the moisture content 30%, stacked and fermented, turned once every 3 days, decomposed after 20 days, dried and set aside.

[0039] The preparation method of described modified cyclodextrin is as follows:

[0040] 1) Mix and swell the bagasse fiber with 0.1mol / L sodium hydroxide solution, the mass ratio of the bagasse fiber to the sodium hydroxide solution is 1:20, swell for 1 hour, and filter to obtain the swollen bagasse fiber;

[0041] 2) Add epichlorohydrin and sodium hydroxide ...

Embodiment 2

[0048] A soil conditioner consisting of the following raw materials:

[0049] 70kg of wheat straw powder, 25kg of walnut shell powder, 15kg of decomposed sawdust, 12kg of modified cyclodextrin, and 5kg of sodium secondary alkyl sulfonate.

[0050] The preparation method of the decomposed sawdust is as follows: sawdust, coconut shell powder and chitosan are mixed evenly in a mass ratio of 400:40:12, then add 0.8% organic material decomposing agent of the total weight of the mixture, and then adjust the moisture content 40%, stacked and fermented, turned over once every 2 days, decomposed after 15 days, dried and set aside.

[0051] The preparation method of described modified cyclodextrin is as follows:

[0052] 1) The kiwifruit fiber is mixed and swollen with 0.1mol / L sodium hydroxide solution, the mass ratio of the kiwifruit fiber to the sodium hydroxide solution is 1:25, swollen for 1h, and filtered to obtain the swollen kiwifruit fiber;

[0053] 2) Add epichlorohydrin and...

Embodiment 3

[0060] A soil conditioner consisting of the following raw materials:

[0061] Wheat straw powder 67kg, walnut shell powder 20kg, decomposed sawdust 18kg, modified cyclodextrin 10kg, sodium secondary alkyl sulfonate 4kg.

[0062] The preparation method of the decomposed sawdust is as follows: sawdust, coconut shell powder and chitosan are mixed evenly in a mass ratio of 330:37:9, then add 0.7% organic material decomposing agent of the total weight of the mixture, and then adjust the moisture content It is 33%, stacked and fermented, turned over once every 2 days, decomposed after 15 days, dried and set aside.

[0063] The preparation method of described modified cyclodextrin is as follows:

[0064] 1) The kiwifruit fiber is mixed and swollen with 0.1mol / L sodium hydroxide solution, the mass ratio of the kiwifruit fiber to the sodium hydroxide solution is 1:25, swollen for 1h, and filtered to obtain the swollen kiwifruit fiber;

[0065] 2) Add epichlorohydrin and sodium hydrox...

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Abstract

The invention belongs to the technical field of agricultural fertilizer, and more specifically relates to a soil improvement agent, and a preparation method thereof. The soil improvement agent comprises following raw materials, by weight, straw powder, walnut shell powder, decomposed sawdust, modified cyclodextrin, and seconary alkane sulphonate sodium. The soil improvement agent is simple in composition, and abundant in nutrients, is capable of improving the acidity of acid soil effectively, reducing crop aluminium poisoning risk, promoting absorption and utilization of crops on nutrients, and increasing fertilizer utilization rate.

Description

technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to a soil conditioner and a preparation method thereof. Background technique [0002] As an important aspect of soil degradation, soil acidification directly affects soil quality. In recent years, various unreasonable human activities, such as increasing acid rain deposition and excessive use of ammonium nitrogen fertilizers, have led to intensified soil acidification, and the area of ​​acidic soil in cultivated land is increasing. Soil acidification directly affects the physical, chemical, and biological characteristics of soil, not only causing a large loss of soil mineral nutrients, reducing nutrient activity, inhibiting soil microbial activity, and reactivating toxic heavy metals, but also endangering the ecological environment of soil and water bodies. Seriously restrict the sustainable development of agriculture. Therefore, it is of great significance for th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/32C05G3/00C05G3/04C09K109/00C09K101/00C05G3/80
CPCC05F11/00C05G3/00C05G3/80C09K17/32C09K2101/00C09K2109/00
Inventor 陈静蕊王秋林刘佳秦文婧徐昌旭杨成春吕丰娟
Owner INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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