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Soil remedying fertilizer and preparation method thereof

A soil repair and fertilizer technology, which is applied in the preparation of organic fertilizers, organic fertilizers, urea compound fertilizers, etc., can solve the problems of single repair function, limited use conditions, complex components, etc., to reduce soil compaction, reduce bulk density, Simple Effects of Components

Active Publication Date: 2019-04-26
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

[0004] The purpose of the present invention is to overcome the shortcomings of existing soil remediation fertilizers, such as single function of remediation of organic matter and heavy metal contaminated soil, limited use conditions, complex components, etc., thereby providing a soil remediation fertilizer and its preparation method

Method used

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  • Soil remedying fertilizer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0039] A soil repair fertilizer, consisting of the following raw materials:

[0040] Corn straw powder 40kg, urea 16kg, decomposed sawdust 15kg, modified cyclodextrin 6kg, humic acid 10kg, modified watermelon rind 5kg.

[0041] 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.

[0042] The preparation method of described modified cyclodextrin is as follows:

[0043] 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;

[0044] 2) Add epichlorohydrin and sodium hydroxide solution to the sw...

Embodiment 2

[0056] A soil repair fertilizer, consisting of the following raw materials:

[0057] Reed straw powder 50kg, urea 20kg, decomposed sawdust 10kg, modified cyclodextrin 10kg, humic acid 6kg, modified watermelon rind 8kg.

[0058] 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.

[0059] The preparation method of described modified cyclodextrin is as follows:

[0060] 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;

[0061] 2) Add epichlorohydrin and sodium hydroxide so...

Embodiment 3

[0073] A soil repair fertilizer, consisting of the following raw materials:

[0074] Corn straw powder 48kg, urea 17kg, decomposed sawdust 12kg, modified cyclodextrin 8kg, humic acid 8kg, modified watermelon rind 8kg.

[0075] The preparation method of the decomposed sawdust is as follows: sawdust, coconut shell powder and chitosan are mixed evenly in a mass ratio of 340:35:8, then add 0.7% organic material decomposing agent of the total weight of the mixture, and then adjust the moisture content It is 35%, stacked and fermented, turned over once every 3 days, decomposed after 20 days, dried and set aside.

[0076] The preparation method of described modified cyclodextrin is as follows:

[0077] 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;

[0078] 2) Add epichlorohydrin and sodium hydroxide solution to...

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Abstract

The invention relates to the technical field of agricultural fertilizers, in particular to a soil remedying fertilizer and a preparation method thereof. The soil remedying fertilizer provided by the invention comprises the following raw materials in parts by weight: straw powder, urea, thoroughly decomposed sawdust, modified cyclodextrin, humic acid and modified watermelon peel. The soil remedyingfertilizer provided by the invention is simple in components and rich in nutrition, and can effectively reduce the contents of heavy metals and organic pollutants in soil.

Description

technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to a soil repair fertilizer and a preparation method thereof. Background technique [0002] With the rapid development of modern industry and agriculture, the extensive application of chemical fertilizers and pesticides, the exploitation of mines and oil fields, and the discharge of petrochemical, pesticide and pharmaceutical production enterprises have led to the continuous deterioration of soil pollution. Among them, the pollution of soil organic matter and heavy metals has become a prominent environmental problem that cannot be ignored. Most of the soil organic pollutants are volatile and semi-volatile compound pollutants. The absorption and enrichment of metals pose a risk of serious damage to the human body. These pollutants are continuously migrated and transformed in the soil. They can enter the food chain through agricultural production and enter the human b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05F17/00C05G3/80
CPCC05C9/00C05F17/00C05G3/00C05G3/80C05F5/002C05F11/00C05F11/02C05F11/08Y02W30/40
Inventor 陈静蕊王秋林刘佳秦文婧徐昌旭杨成春
Owner INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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