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Nano saline alkali soil improvement agent and preparation technology thereof

A technology of saline-alkali soil and conditioner, applied in soil conditioning materials, organic fertilizers, fertilizer mixtures, etc., can solve problems such as poor ability and small contact surface, and achieve the effects of low preparation cost, easy purchase, and stimulation of plant biological activity.

Inactive Publication Date: 2013-09-11
INST OF SOIL FERTILIZER & WATER SAVING AGRI GANSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it solves the problem that the calcium preparation in the existing salinized soil improver has a smaller contact surface with the soil particle due to larger particles and the Ca in the improver 2+ Replacement of Na in soil colloid + Poor ability and other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A nano saline-alkali soil improver, the formula is: phosphogypsum 90 wt%, boric acid 1 wt%, zinc sulfate 1 wt%, urea phosphate 2 wt%, potassium fulvic acid 4 wt%, TiO 2 Mixture 2 wt % with ZnO in mass ratio 1:1.

[0035] Its preparation process comprises the following steps:

[0036] 1) Grind the phosphogypsum of the formulated amount into powder with a pulverizer or a ball mill, and set aside;

[0037] 2) Fully mix the phosphogypsum powder obtained in step 1) with the nano-catalyst of the formula, irradiate and accumulate under ultraviolet light with a wavelength range of 190nm for 30 days, stir once every 3-5 days for accumulation, and stir for a total of 2- 5 times;

[0038] 3) Stir and mix the mixture obtained in step 2) with boric acid, zinc sulfate, urea phosphate, and potassium fulvic acid at room temperature.

Embodiment 2

[0039] Example 2: ZnO, TiO 2 , Fe 3 o 4 , SiO 2

[0040] A nano saline-alkali soil improver, the formula is: phosphogypsum 70 wt%, boric acid 5 wt%, zinc sulfate 10 wt%, urea phosphate 2 wt%, potassium fulvic acid 8 wt%, ZnO 5 wt%.

[0041] Its preparation process comprises the following steps:

[0042] 1) Grind the phosphogypsum of the formulated amount into powder with a pulverizer or a ball mill, and set aside;

[0043] 2) Fully mix the phosphogypsum powder obtained in step 1) with the nano-catalyst of the formula, irradiate and accumulate under ultraviolet light with a wavelength range of 400nm for 10 days, stir once every 3-5 days for accumulation, and stir for a total of 2- 5 times;

[0044] 3) Stir and mix the mixture obtained in step 2) with boric acid, zinc sulfate, urea phosphate, and potassium fulvic acid at room temperature.

Embodiment 3

[0046] A nano saline-alkali soil improver, the formula is: phosphogypsum 48 wt%, boric acid 5 wt%, zinc sulfate 10 wt%, urea phosphate 30 wt%, potassium fulvic acid 3 wt%, Fe 3 o4 4 wt%.

[0047] Its preparation process comprises the following steps:

[0048] 1) Grind the phosphogypsum of the formulated amount into powder with a pulverizer or a ball mill, and set aside;

[0049] 2) Fully mix the phosphogypsum powder obtained in step 1) with the nano-catalyst of the formula, irradiate and accumulate under ultraviolet light with a wavelength range of 200nm for 15 days, stir once every 3-5 days for accumulation, and stir for a total of 2- 5 times;

[0050] 3) Stir and mix the mixture obtained in step 2) with boric acid, zinc sulfate, urea phosphate, and potassium fulvic acid at room temperature.

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Abstract

The invention discloses a nano saline alkali soil improvement agent. The nano saline alkali soil improvement agent comprises the following components according to a formula: 48-92wt% of ardealite, 0.001-5wt% of boric acid, 0.01-10wt% of zinc sulphate, 2-30wt% of urea phosphate, 1-35wt% of potassium fulvic acid and 0.001-5wt% of nano photocatalyst. The nano saline alkali soil improvement agent contains the nano photocatalyst, and heavy metal content in ardealite can be reduced by utilizing photochemical characteristics of the nano photocatalyst; soil source microorganisms of disease are killed by utilizing sterilization characteristic of a nano material; besides, surface activation performance of the nano material is utilized for improving ion exchange performance of the improvement agent and improving fertilizer efficiency of the improvement agent; and meanwhile, the problems that a contact area between a calcium preparation and soil particles is small as particles of a calcium preparation are larger and the capacity for replacing Na<+> in soil colloid by virtue of Ca<2+> is poorer in an existing salinity soil improvement agent are solved.

Description

technical field [0001] The invention relates to a saline-alkali soil improver. Background technique [0002] According to incomplete statistics from the United Nations, there are about 1 billion hectares of saline soil in the world, and about 1.2×10 5 ha irrigated land loses productivity due to salinization. Therefore, the study of saline-alkali soil amendments is an important guarantee to ensure that the red line of 1.8 billion mu of cultivated land in my country will not be affected. [0003] At present, there have been a large number of research results and products in the research and production of soil conditioners at home and abroad. There are many single improvers such as zeolite, fly ash, sludge, green manure, and polyacrylamide, which have been studied more in salinized soil improvers, but they have problems such as incomplete improvement effects or negative impacts to varying degrees. In order to further improve the improvement effect of soil amendments and redu...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K101/00
Inventor 郭全恩车宗贤曹诗瑜高源李忠葛洪俊
Owner INST OF SOIL FERTILIZER & WATER SAVING AGRI GANSU ACAD OF AGRI SCI
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