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Material for reclamation of saline-alkali soil and application thereof

A saline-alkaline soil and soil improvement technology, applied in the direction of soil conditioning materials, applications, organic fertilizers, etc., can solve the problems of reducing plant essential nutrients, nutrient element decline, plant germination obstacles, etc., to achieve improved chemical properties, high continuous effect, Reduces the effect of salt accumulation

Inactive Publication Date: 2012-08-22
INST OF AGRI ENVIRONMENT & RESOURCE SHANXI ACAD OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that saline-alkali soil will cause obstacles to plant germination due to its dense and hard characteristics, and high pH will reduce the essential nutrients of plants and reduce the potential nutrients such as carbon and nitrogen in the soil. A kind of saline-alkali soil improvement material, and the application of the saline-alkali soil improvement material in improving soil salinity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A saline-alkali soil improvement material, comprising the following components in parts by weight:

[0038] Sulfur 15, Humic Acid 40, Chaff Residue 40.

[0039] Wherein the chaff residue is the residue produced during the wheat whitening process.

[0040] Mix the above three components, use a stirring mixer, and use a dry extrusion granulator to form granules. The optimum conditions for granulation are: the amount of water added to the granulation (external number) is 2%, the composition of the finished product is 8.5%, and the outlet temperature of the granulator is 48°C. The physical properties of the product: the hardness is 2.5kg / cm2, and the pH value of the finished product is 4.96.

[0041] A. On-the-spot demonstration test: use the soil improvement material obtained above, apply to the saline-alkali soil with a pH value of 8.7, and carry out the following application effect confirmation test.

[0042] Application amount: the actual amount is 125kg / 1.5 mu. The...

Embodiment 2

[0091] A saline-alkali soil improvement material, comprising the following components in parts by weight:

[0092] Sulfur 20, Humic Acid 60, Chaff Residue 35, Trace Elements, 1.

[0093] Among them, chaff residues are residues of rice, barley, wheat, and millet; trace elements are Fe, Mn, and Cu.

[0094] The application rate is 50kg / 1.5 mu.

Embodiment 3

[0096] A saline-alkali soil improvement material, comprising the following components in parts by weight:

[0097] Sulfur compounds 55, humic acids 15, chaff residue 35, trace elements 2.

[0098] Among them, chaff residues are soybean, wheat, and millet residues; trace elements are Fe, Mn, Cu, Zn, and Mo.

[0099] The application rate is 100kg / 1.5 mu.

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Abstract

The invention discloses a material for reclamation of saline-alkali soil and an application thereof, which belong to the technology of soil reclamation, and the problems that injuries brought to sprouting of a plant due to the characteristics of density and hardness of saline-alkali soil, necessary nutrients for the plant are reduced by high pH of saline-alkali soil, and potential nutrient elements of carbon, nitrogen and the like are reduced are solved. The material for reclamation of saline-alkali soil comprises the following components by weight parts: 15-60 parts of sulfur, 15-60 parts of humic acids, and 15-40 parts of chaff type residue. The material disclosed by the invention can be widely applied to reclamation of saline-alkali soil, particularly for saline-alkali soil with pH value higher than 8.0, the chemical and physical properties of soil can be improved, concentration of salts on the surface of soil can be alleviated, since the pH value of soil is lowered, the yield and the quality of cultured crops in high saline-alkali soil can be greatly increased.

Description

technical field [0001] The invention belongs to soil improvement technology, and relates to a saline-alkali soil improvement material and a saline-alkali soil improvement method using the material. Background technique [0002] Saline-alkali soil with a soil pH of 8.0 or higher will have a bad effect on the physical properties and nutrient characteristics of the soil. Due to poor growth or difficulty in growing crops, various soil improvement methods have been proposed from the perspective of effective soil utilization. But there is not a very effective saline-alkali soil improvement method used in practice. [0003] Patent 99112075.2 discloses an agricultural soil improver, which is composed of borax, magnesium sulfate, zinc sulfate, copper sulfate, gypsum, molybdenum ammonium acid, manganese sulfate, sulfur, and ferrous sulfate in a certain proportion by weight. Soil structure, but in effect instability. 200910035391.X discloses a biological soil conditioner containing p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K101/00C09K109/00
Inventor 陈明昌张强日高伸
Owner INST OF AGRI ENVIRONMENT & RESOURCE SHANXI ACAD OF AGRI SCI
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