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A kind of soil conditioner for alkaline soil

A soil conditioner and alkaline soil technology, applied in soil conditioning materials, applications, other chemical processes, etc., can solve the problems of increasing material and labor costs, increasing the environmental burden of alkaline soil, and excessive use of desulfurization gypsum, and achieving improved improvement effects. The effect of improving soil permeability and reducing pH value

Active Publication Date: 2019-12-20
华清农业开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, at present, one of the bottlenecks that hinders the further expansion of the use of desulfurized gypsum is the excessive dosage. The amount of conventional desulfurized gypsum varies according to the degree of salinity. Excessive dosage will not only increase the cost of materials and labor, but also increase the burden on the alkaline soil environment and cause soil pollution. risks of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The soil conditioner for alkaline earth of the present invention comprises the following components by weight: 80 parts of desulfurized gypsum, 17 parts of ferrous sulfate, and 3 parts of citric acid.

[0024] The test area is located in Wuyuan County, Inner Mongolia, and the cultivated crop is edible sunflower. The measured soil pH value is 9.0, and the salt content is 5.1g / kg; the soil conditioner for alkaline soil of the present invention is 1250kg / mu, and the amount of desulfurization gypsum is 1000kg / mu. In the same plot, the conventional desulfurization gypsum application rate is 1500kg / mu (set as contrast), and the soil conditioning for alkaline soil of the present invention reduces the desulfurization gypsum application rate by 33.33% compared with the conventional mode. The rest of the field water and fertilizer management measures were the same. Actual tests show that under other identical conditions, after applying the soil conditioner for alkaline soil acc...

Embodiment 2

[0026] The soil conditioner for alkaline earth of the present invention comprises the following components by weight: 89 parts of desulfurized gypsum, 9 parts of ferrous sulfate, and 2 parts of citric acid.

[0027] The test area is located in Da'an, Jilin, and the cultivated crop is rice. The measured soil pH value is 9.8, and the salt content is 6.2g / kg; the soil conditioner for alkaline soil of the present invention is applied at 2247kg / mu, and the amount of desulfurized gypsum is 2000kg / mu. In the same plot, the conventional desulfurization gypsum application rate is 2800kg / mu (set as contrast), and the soil conditioning for alkaline soil of the present invention reduces the desulfurization gypsum application rate by 28.57% compared with the conventional mode. The rest of the field water and fertilizer management measures were the same. Actual tests show that under other identical conditions, after applying the soil conditioner for alkaline soil according to the above meth...

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PUM

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Abstract

The invention discloses a soil conditioner used for alkaline earth. The soil conditioner used for alkaline earth is prepared from, by weight, 16 to 90 parts of desulfurized gypsum, 1 to 20 parts of ferrous sulphate, and 1 part of citric acid. The soil conditioner used for alkaline earth is capable of reducing pH value of alkaline earth, promoting ion exchange, improving soil structure, improving soil permeability, and improving soil fertility; action speed and efficiency of the soil conditioner in improving alkaline earth are improved; cost is low; the soil conditioner is safe for the ecological environment; large area application can be realized; the dosage of desulfurized gypsum can be reduced, and the dosage of desulfurized gypsum can be reduced by 40% at most; and improvement effect is improved.

Description

technical field [0001] The invention relates to a soil conditioner for alkaline soil, which belongs to the field of alkaline soil improvement. Background technique [0002] Saline-alkali soil is one of the most widely distributed barrier soil types in my country. Among them, alkaline soil or alkalized soil refers to the soil in which the soil colloid absorbs more exchangeable sodium and shows a strong alkaline reaction. According to incomplete statistics, my country's alkaline soil area exceeds 100 million mu, mainly distributed in the Songliao Plain in the northeast, and the desert and semi-desert areas in Xinjiang, Gansu, Ningxia and other places in the northwest. [0003] Chemical methods are the most effective means to improve alkaline soil, by directly or indirectly providing divalent cations to replace the exchangeable Na in soil colloids. + . Among them, desulfurization gypsum is one of the main alkaline soil improvement materials that have emerged in recent years,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C09K101/00C09K109/00
CPCC09K17/40C09K2101/00C09K2109/00
Inventor 赵永敢王淑娟李彦刘嘉王婧禚玉群徐立珍孙振涛
Owner 华清农业开发有限公司
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