Soil remediation agent for saline-alkali soil and preparation method thereof

A soil remediation agent and a technology for saline-alkali land, applied in the field of saline-alkali land remediation, can solve problems such as reducing saline-alkali land and need to be further improved, and achieve the effects of increasing soil fertility, improving soil salinization, and improving fertility

Pending Publication Date: 2019-07-23
乐清市华尊电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The Chinese invention patent with the application number CN201010131080.6 discloses a green microbial saline-alkali soil improver for agriculture, including citric acid, wood acid, fulvic acid, fumaric acid, humic acid, pyrophosphoric acid, malic acid, etc. The improvement effect on saline-alkali land is good, easy to use, and low in cost, but it only uses various acids to reduce the pH value of saline-alkali land, and its effect of reducing salt, pressure and alkali and improving the soil rational structure need to be further improved

Method used

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  • Soil remediation agent for saline-alkali soil and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0034] A soil remediation agent for saline-alkali land, the soil remediation agent for saline-alkali land comprises the following components in parts by weight: 80 parts of fermentation products, 10 parts of inorganic nutrients and 5 parts of modified lignin, and the fermentation products consist of 30 parts of wheat straw, 40 parts of Pig manure and 1 portion of fermented strains are mixed and fermented. The fermented strains are Bacillus, yeast, and lactic acid bacteria. The inorganic nutrients are a mixture of calcium nitrate, potassium chloride, and superphosphate. Calcium nitrate, potassium chloride, and superphosphate The weight ratio of calcium is 1:1:1, and the modified lignin is prepared from lignin, phenol, sodium sulfite and formaldehyde.

[0035] The above raw materials are used to prepare a soil remediation agent for saline-alkali land, and the preparation method of the soil remediation agent for saline-alkali land comprises the following steps:

[0036] (1) Add 5...

Embodiment 2

[0040] A soil remediation agent for saline-alkali land, the soil remediation agent for saline-alkali land comprises the following components in parts by weight: 85 parts of fermentation products, 15 parts of inorganic nutrients and 8 parts of modified lignin, and the fermentation products consist of 35 parts of crop straw, 45 parts of It is made by mixing and fermenting poultry manure and 1.5 parts of fermentation bacteria. The fermentation bacteria are photosynthetic bacteria, actinomycetes and bifidobacteria, the poultry manure is cow manure and sheep manure, and the crop straw is cotton straw and corn straw. It is a mixture of calcium nitrate, potassium chloride and superphosphate, the weight ratio of calcium nitrate, potassium chloride and superphosphate is 1.5:1:1.5, and the modified lignin is composed of lignin, phenol, sodium bisulfite and formaldehyde Prepared.

[0041] The above raw materials are used to prepare a soil remediation agent for saline-alkali land, and the...

Embodiment 3

[0046] A soil remediation agent for saline-alkali land, the soil remediation agent for saline-alkali land includes the following components in parts by weight: 90 parts of fermentation products, 20 parts of inorganic nutrients and 10 parts of modified lignin, the fermentation products are composed of 40 parts of crop straw, 55 parts It is produced by mixing and fermenting poultry manure and 2 parts of fermentation bacteria. The fermentation bacteria are nitrogen-fixing bacteria, potassium-dissolving bacteria and phosphorus-dissolving bacteria. The poultry manure is pig manure, cow manure and sheep manure, and the crop straw is wheat straw, cotton straw and Corn straw, the inorganic nutrient is a mixture of calcium nitrate, potassium chloride and superphosphate, the weight ratio of calcium nitrate, potassium chloride and superphosphate is 2:1:2, and the modified lignin is composed of lignin, phenol, hydroxyl Prepared from sodium methanesulfonate and formaldehyde.

[0047] The a...

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Abstract

The invention discloses a soil remediation agent for saline-alkali soil and a preparation method thereof. The soil remediation agent comprises the following components: a fermented product, an inorganic nutrient and a modified lignin. The preparation method for the soil remediation agent comprises the following steps: preparing the modified lignin; preparing the fermented product; adding the inorganic nutrient and the modified lignin into the fermented product, uniformly mixing, airing, smashing and pelletizing, thereby acquiring soil remediation agent for saline-alkali soil. Under a synergistic effect of the sulfonic acid group in the modified lignin, the humic acid in the fermented product and calcium ions in the inorganic nutrient in the soil remediation agent, the content of soluble salt and alkalinity in the saline-alkali soil can be obviously reduced, the fertility of saline-alkali soil can be promoted and an excellent growth environment can be created for the development of plant root systems. An experimental result shows that the soil poured with the soil remediation agent prepared according to the invention is characterized by obviously reduced degree of alkalization and salt content and obviously increased contents of organics, nitrogen, phosphorus and potassium in the soil.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land restoration, in particular to a soil restoration agent for saline-alkali land and a preparation method thereof. Background technique [0002] With the rapid increase of population and the deteriorating climate conditions, the salinization of land is a worldwide ecological problem. An important limiting factor for the sustainable development of world agriculture. The area of ​​salinized cultivated land in my country is about 34.67 million hm 2 (520 million mu), ranking fourth in the world, second only to Australia, Mexico, and Argentina. my country's saline-alkali land is mainly distributed in 17 provinces including northeast, north, northwest and coastal areas. In order to ensure the safety of food production in our country, improve the ecological environment, and realize the sustainable utilization of resources, it is imminent to accelerate the development of saline-alkali land impr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
CPCC05B1/02C05G3/80C05G5/12C05C5/04C05D1/02C05F3/00C05F11/00C05F11/02C05F11/08
Inventor 辛钧意
Owner 乐清市华尊电气有限公司
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