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Xinjiang saline-alkali oil improvement method using desulphurization gypsum

A technology for desulfurizing gypsum and saline-alkali land, applied in the fields of land preparation methods, applications, agricultural machinery and implements, etc., can solve the problems of high water resource dependence, long planting process, low agricultural yield, etc. The effect of nutrients

Active Publication Date: 2017-09-22
朱拥军 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And because it is located in an inland closed environment, the rich salt substances can only circulate in the area, resulting in strong residual soil salt accumulation and modern salt accumulation processes, which are the main factors causing low agricultural production in Xinjiang
[0005] In order to develop agricultural production in Xinjiang, relevant scientific research teams have improved saline-alkali land in Xinjiang based on their technical achievements. The improvement of saline-alkali land still mainly adopts two methods: (1) Draining by leaching the soil Salt, although this method has transformed tens of thousands of acres of land into fertile fields, it is not a long-term solution due to its high dependence on water resources, and Xinjiang is extremely short of water. (2) Planting halophytes , use halophytes to absorb salt, but the planting process is long and the investment is large

Method used

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Embodiment 1

[0031] A method for improving saline-alkali land in Xinjiang with desulfurized gypsum, comprising the following steps:

[0032] S1. Grinding the humic acid-containing raw material to 100 mesh, the humic acid-containing raw material is lignite, adding water, the weight ratio of the humic acid-containing raw material to water is 1:5, performing wet ball milling, precipitation, separation, supernatant The liquid is an aqueous solution containing fulvic acid, and the precipitate is a mixture of brown humic acid and black humic acid;

[0033] S2. In August, plow the soil to 27cm deep, spray diammonium hydrogen phosphate on the unturned soil surface, the amount of diammonium hydrogen phosphate is 2kg / mu, spread desulfurization gypsum, and CaSO in desulfurization gypsum 4 2H 2 The weight content of O is >82%, and the dosage of desulfurized gypsum is 1900kg / mu;

[0034] S3. Mix the turned up soil with the mixture of brown humic acid and black humic acid, cinder and coconut bran obta...

Embodiment 2

[0038] A method for improving saline-alkali land in Xinjiang with desulfurized gypsum, comprising the following steps:

[0039] S1. Grinding the humic acid-containing raw material to 50 mesh, the humic acid-containing raw material is lignite, adding water, the weight ratio of the humic acid-containing raw material to water is 1:2, performing wet ball milling, sedimentation, separation, supernatant The liquid is an aqueous solution containing fulvic acid, and the precipitate is a mixture of brown humic acid and black humic acid;

[0040] S2. In August, plow the soil to 25cm deep, spray diammonium hydrogen phosphate on the unturned soil surface, the dosage of diammonium hydrogen phosphate is 0.5kg / mu, spread desulfurization gypsum, and CaSO in desulfurization gypsum 4 2H 2 The weight content of O is >82%, and the dosage of desulfurized gypsum is 1500kg / mu;

[0041] S3. mix the turned up soil with the mixture of brown humic acid and black humic acid obtained in step S1, coal ci...

Embodiment 3

[0045] A method for improving saline-alkali land in Xinjiang with desulfurized gypsum, comprising the following steps:

[0046]S1. Grinding the raw material containing humic acid to 200 mesh, the raw material containing humic acid is lignite, adding water, the weight ratio of raw material containing humic acid and water is 1:10, carrying out wet ball milling, precipitation, separation, supernatant The liquid is an aqueous solution containing fulvic acid, and the precipitate is a mixture of brown humic acid and black humic acid;

[0047] S2. In August, plow the soil to 25cm deep, spray diammonium hydrogen phosphate on the unturned soil surface, the dosage of diammonium hydrogen phosphate is 3kg / mu, spread desulfurization gypsum, and CaSO in desulfurization gypsum 4 2H 2 The weight content of O is >82%, and the dosage of desulfurization gypsum is 2000kg / mu;

[0048] S3. mix the turned up soil with the mixture of brown humic acid and black humic acid obtained in step S1, coal c...

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Abstract

The invention discloses a Xinjiang saline-alkali oil improvement method using desulphurization gypsum. The method comprises the following steps of S1, soaking a row material with humic acid, and obtaining a water solution with fulvic acid and a mixture of hymatomalenic acid and pyrotomalenic acid; S2, deeply turning soil to 25-40 cm, spraying diammonium hydrogen phosphate on the soil surface which is not turned, wherein the usage amount of the diammonium hydrogen phosphate is 0.5-3 kg per mu (a unit of area, equal to 0.0667 hectare), and covering the soil surface with the desulphurization gypsum; S3, mixing the turned soil, the mixture of the hymatomalenic acid and the pyrotomalenic acid, coal cinder with coconut coir evenly, and covering the desulphurization gypsum with the mixture after being evenly mixed; S4, spraying the water solution with the fulvic acid on the soil surface; S5, rotatably tilling and turning soil to 25-40 cm. According to the Xinjiang saline-alkali oil improvement method using the desulphurization gypsum, the improvement speed of the saline-alkali soil is improved through multiple substances, nutrients in the soil are added, and therefore agricultural development in the Xinjiang region is greatly promoted.

Description

technical field [0001] The invention relates to the field of soil improvement, in particular to a method for improving saline-alkali land in Xinjiang with desulfurized gypsum. Background technique [0002] For farmers in Xinjiang, the saline-alkali land is their nightmare. Many plants cannot be grown on the saline-alkali land, which has become the biggest obstacle restricting farmers from increasing production and income. [0003] Soil salinization refers to the phenomenon or process of soluble salt accumulation on the soil surface. Saline-alkali soil can be divided into pine-salt soil mainly containing sulfate and chloride and alkaline soil mainly containing carbonate. It is reflected in the reduction or failure of crops, affecting the growth of vegetation and indirectly causing the deterioration of the ecological environment. [0004] Xinjiang is the largest saline-alkali soil area in China. Most of the severely salinized land cannot be used for a long time, which serious...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 张豫朱拥军
Owner 朱拥军
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