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Land saline-alkaline 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 alkalization and increasing fertilizer efficiency, and achieve the effect of reducing pH value, increasing fertilizer efficiency, and increasing grain yield per unit area

Inactive Publication Date: 2006-01-25
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 improve the bad physical properties of the soil; at the same time, it can effectively overcome the imbalance of nutrient elements in the soil , improve soil fertility, loosen soil, increase fertilizer efficiency, and gradually control soil salinization

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0014] Example 1 (severe 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, 1-3 parts of potassium 1 to 4 parts of trace elements.

Embodiment 2

[0015] Embodiment 2 (moderate saline-alkali land): 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, 1~10 parts of potassium 3 parts, 1 to 4 parts of trace elements.

Embodiment 3

[0016] Embodiment 3 (mild saline-alkali land): 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, 1~10 parts of potassium 3 parts, 1 to 4 parts of trace elements.

[0017] The above raw materials are fully ground and mixed, and the fineness is required to be ≥120 mesh, and prepared into a soil salinity improver.

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

[0019] The using method of soil salinity improver of the present invention, wherein application condition is as follows:

[0020] Application time: It is more suitable to apply from the beginning of May to the end of September when the ground temperature rises significantly; it is better to apply in July to August when the temperature is higher and the rain is mo...

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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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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/06
Inventor 张继忠
Owner 张继忠
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