Saline-alkaline land modifier

A technology of improver and soil, applied in the direction of soil conditioning materials, organic fertilizers, fertilizer mixtures, etc., can solve the problems of reducing alkalinity and increasing fertilizer efficiency, and achieve the effect of reducing pH value, increasing fertilizer efficiency, and simple treatment methods

Inactive Publication Date: 2004-04-07
张继忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main technical problem to be solved by the present invention is to apply the soil salinity improver to replace the exchangeable sodium in the soil with chemical improvement, eliminate soda, reduce the degree of alkalization, and improv

Method used

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  • Saline-alkaline land modifier
  • Saline-alkaline land modifier
  • Saline-alkaline land modifier

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0014] Example 1 (Heavy saline-alkali land): 40-60 parts of calcium sulfate dihydrate, 5-10 parts of anhydrous calcium sulfate, 1-5 parts of pyrite, 5-10 parts of oxalic acid, 5-8 parts of phosphorus, and 1-3 parts of potassium Parts, 1 to 4 parts of trace elements.

Example Embodiment

[0015] Example 2 (moderate saline-alkali soil): 20-40 parts of calcium sulfate dihydrate, 5-10 parts of anhydrous calcium sulfate, 1-5 parts of pyrite, 5-10 parts of oxalic acid, 5-8 parts of phosphorus, 1~ potassium 3 parts, 1 to 4 parts of trace elements.

Example Embodiment

[0016] Example 3 (slightly alkaline soil): 10-20 parts of calcium sulfate dihydrate, 5-10 parts of anhydrous calcium sulfate, 1-5 parts of pyrite, 5-10 parts of oxalic acid, 5-8 parts of phosphorus, 1~ potassium 3 parts, 1 to 4 parts of trace elements.

[0017] The above-mentioned raw materials are fully ground and mixed uniformly, and the fineness is required to be ≥120 meshes, and the soil saline-alkali improver is prepared.

[0018] The above-mentioned trace elements are zinc, molybdenum, manganese, boron, and selenium, which are added according to the results of soil analysis and testing and the characteristics of crops.

[0019] The application conditions of the soil saline-alkali improver of the present invention are as follows:

[0020] Application time: From the beginning of May to the end of September when the ground temperature rises significantly, it is more suitable, especially in July to August when the temperature is higher and the rain is more, the improvement effec...

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Abstract

The saline-alkaline land modifier consists of dehydrated calcium sulfate 10-60 weight portions, anhydrous calcium sulfate 5-10 weight portions, pyrite 1-5 weight portions, oxalic acid 5-10 weight portions, phosphorus 5-8 weight portions, potassium 1-3 weight portions, and trace elements 1-4 weight portions. All the materials are ground to 120 meshes and mixed into the saline-alkaline land modifier. The saline-alkaline and modifier can reduce soil pH value, balance nutritive elements, improve soil fertility, loosen soil, increase fertilizer effect and absorb and release water to regulate moisture of soil, so that it may be used to increase yield, tackle saline-alkaline land, improve ecological environment.

Description

(1) Technical field [0001] The invention belongs to soil improver, in particular to a soil salinity improver. (2) Background technology [0002] Datong Basin is a typical soda-type saline-alkali land, which has the dual characteristics of salinization and alkalization. The salt content of the topsoil layer is greater than 0.6%, the soil pH is 9-10, and the exchangeable sodium ions account for more than 20% of the total cations. Carbonate, Bicarbonate accounts for more than 50% of the total anions, the groundwater table is shallow, the salinity is 4-5g / L, and some are greater than 10g / L, the soil properties deteriorate, the compaction is serious, the tillability is poor, and the soil nutrients are low. Due to the hazards of soil salinization, large areas of soil cannot be cultivated, the land is barren, and there is no organism to moisten. The saline-alkali land is in a vicious cycle. [0003] For the treatment of saline-alkali land, water washing method is generally used, a...

Claims

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Application Information

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IPC IPC(8): C09K17/06
Inventor 张继忠
Owner 张继忠
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