Special ecological fertilizer for saline-alkali soil and preparation method thereof

A saline-alkali soil and ecological fertilizer technology, applied in the field of slow-release fertilizers, can solve the problems of unsatisfactory improvement of soil fertility, soil root system and soil microbial living environment system, unsuitable for large-scale industrial production, and low utilization rate of biological fertilizers. , to achieve the effect of improving ion adsorption capacity, increasing water permeability, and improving soil alkaline environment

Inactive Publication Date: 2015-09-09
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Chinese Patent Publication No. CN1631857A discloses a saline-alkali soil improvement fertilizer and its preparation method, including microbial composite bacteria liquid and dry material. Actinobacillus mobilis, but its source of raw materials is less, the preparation method is complicated, and it is not suitable for large-scale industrial production
[0006] At present, most of the special fertilizers for saline-alkali soil use com

Method used

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Examples

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Effect test

Embodiment 1

[0029] A kind of ecological fertilizer special for saline-alkali soil, its raw material composition by weight is as follows: 30 parts of reeds, 30 parts of Spartina, 15 parts of sweet potato flour residue, 20 parts of citric acid industrial waste residue, 25 parts of dried chicken manure, 1 part of starter, sulfuric acid 20 parts of ammonium, 10 parts of calcium dihydrogen phosphate, 10 parts of potassium humate, 5 parts of trace elements, 3 parts of guar gum, 5 parts of esterified starch, and 10 parts of soil conditioner; wherein the soil conditioner consists of bentonite, biochar, Calcium chloride and cetyltrimethylammonium bromide are composed of 3:2:1:0.1 by mass ratio, and its preparation method comprises:

[0030] (1) Refining bentonite and activated carbon to 20-30 meshes, then adding 15% dilute sulfuric acid for acidification treatment, the amount of sulfuric acid added is 5 times that of the solid reactant, the reaction temperature is 40°C, and the reaction is carried ...

Embodiment 2

[0039] A kind of ecological fertilizer special for saline-alkali soil, its raw material composition by weight is as follows: 30 parts of reeds, 30 parts of Spartina, 15 parts of sweet potato flour residue, 30 parts of citric acid industrial waste residue, 35 parts of dried chicken manure, 2 parts of starter, sulfuric acid 5 parts of ammonium, 10 parts of calcium dihydrogen phosphate, 15 parts of potassium humate, 6 parts of trace elements, 5 parts of guar gum, 6 parts of esterified starch, and 12 parts of soil conditioner; wherein the soil conditioner consists of bentonite, biochar, Calcium chloride and cetyltrimethylammonium bromide are composed of 5:2:1:0.1 by mass ratio, and its preparation method comprises:

[0040] (1) Refining bentonite and activated carbon to 20-30 mesh, then adding 15% dilute sulfuric acid for acidification treatment, the amount of sulfuric acid added is 5 times that of the solid reactant, the reaction temperature is 60°C, and the reaction is carried ou...

Embodiment 3

[0049] A kind of ecological fertilizer special for saline-alkali soil, its raw material composition by weight is as follows: 40 parts of reeds, 20 parts of Spartina, 20 parts of sweet potato flour residue, 20 parts of citric acid industrial waste residue, 25 parts of dried chicken manure, 3 parts of starter, sulfuric acid 20 parts of ammonium, 15 parts of calcium dihydrogen phosphate, 15 parts of potassium humate, 8 parts of trace elements, 5 parts of guar gum, 10 parts of esterified starch, and 15 parts of soil conditioner; wherein the soil conditioner consists of bentonite, biochar, Calcium chloride and cetyltrimethylammonium bromide are composed of 5:3:2:0.5 by mass ratio, and its preparation method comprises:

[0050] (1) Refining bentonite and activated carbon to 20-30 meshes, then adding 20% ​​dilute sulfuric acid for acidification treatment, the amount of sulfuric acid added is 3 times that of the solid reactant, the reaction temperature is 40°C, and the reaction is carr...

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Abstract

The invention belongs to the field of fertilizer for crops and particularly relates to a special ecological fertilizer for saline-alkali soil and a preparation method thereof. The special ecological fertilizer is characterized by being composed of reed, common cordgrass, sweet potato powder residue, citric acid industrial residue, dry chicken manure, ammonium sulfate, monocalcium phosphate, potassium humate, trace elements, guar gum, esterified starch and a soil conditioner. The special ecological fertilizer is mainly composed of organic fertilizer, is rich in organic matters and humic acid and is added with a small amount of acidic inorganic fertilizer in a compounded way; therefore, the special ecological fertilizer is comprehensive in nutrition and is capable of well meeting the nutrition demands for growth of crops; the soil conditioner in the special ecological fertilizer is capable of improving the soil environment, reducing the pH value of alkali soil, lowering the content of soluble salt and increasing the content of N, P and K in soil and thus the utilization rate of the fertilizer can be improved.

Description

technical field [0001] The invention belongs to the field of slow-release fertilizers, in particular to a special ecological fertilizer for saline-alkali soil and a preparation method thereof. Background technique [0002] Saline-alkali soil is a type of soil in which the concentration of soluble salts or exchangeable sodium ions in the soil reaches a certain level, which makes the pH of the soil high and makes it difficult for crops to grow. The problem of soil salinization is widespread in the world. In the arid, semi-arid and coastal areas of northern my country, due to the lack of precipitation and strong evaporation, the salt-rich groundwater rises and accumulates on the surface, causing the accumulation of salt in the soil plow layer. Coupled with the long-term unreasonable application of inorganic fertilizers, the soil pH will eventually increase and the soil will become salinized. Studies have shown that saline-alkali soils have high salinity and high alkalinity, whi...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/80
Inventor 陈庆孙丽枝
Owner CHENDU NEW KELI CHEM SCI CO LTD
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