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Method for preparing nano soil

A production method and soil technology, applied in botany equipment and methods, planting substrates, gardening, etc., can solve the problems of airtightness, slow absorption, easy soil compaction, etc., and achieve the goal of reducing pests and diseases, reducing impact, and pollution-free soil environment Effect

Active Publication Date: 2019-08-16
HEBEI MILSON TITANIUM DIOXIDE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Aiming at the situation that the soil is easy to harden, airtight, and crops absorb various fertilizers and other trace elements slowly, the present invention provides a method for making nano-soil, which can significantly improve the performance of soil cultivation

Method used

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  • Method for preparing nano soil
  • Method for preparing nano soil

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Embodiment 1～6 and comparative example 1～2

[0025] In present embodiment 1~6 and comparative example 1~2:

[0026] The titanium dioxide used is anatase titanium dioxide produced by Hebei Meisen Titanium Dioxide Co., Ltd., with an average particle size of ≤3 μm, a mass content of Fe of 0.05-0.08%, and TiO 2 Mass content ≥ 98%, anatase TiO 2 Mass content ≥ 99%, heavy metal mass content ≤ 5ppm.

[0027] The soil used is moist brown loam in the plow layer with a depth of 0-20cm in the Hebei Plain. Let it be air-dried naturally under the condition of ventilation and avoiding light. , dead branches and fallen leaves and other sundries, after laying flat, wait for it to further air-dry slowly, and when the soil sample is completely air-dried, pass it through a 10-mesh sieve.

[0028] The composition and mass ratio of the inorganic compound fertilizer used are ammonium nitrate:potassium dihydrogen phosphate:magnesium nitrate:zinc borate:superphosphate:copper nitrate=1:1:0.2:0.1:0.1:0.05.

[0029] The bio-organic fertilizer u...

Embodiment 1

[0042]A. Dissolve 500kg of titanium dioxide and soil in 700L of water at a mass ratio of 1:800 to obtain a soil suspension with a concentration of 714.3g / L. Then, while stirring at a speed of 300rpm, add a mass concentration of 10% Ammonia, adjust the pH of the solution to be 7.0, then add the dispersant sodium hexametaphosphate, the addition amount is 0.1% of the mass of titanium dioxide and add disodium EDTA, the addition amount is 0.01% of the soil mass, and then continue to stir at the same speed 10min;

[0043] B, in the soil suspension prepared in step A, add inorganic compound fertilizer, addition is 0.1% of soil quality, then continue with the rotating speed of 300rpm, stir 10min, make the soil suspension containing inorganic compound fertilizer;

[0044] C, with the soil suspension prepared in step B, utilize a horizontal sand mill to carry out cyclic and repeated wet sand grinding until the particle size of the suspended matter in the solution is less than 0.1 μm to ...

Embodiment 2

[0048] A. Dissolve 500kg of titanium dioxide and soil in 650L of water at a mass ratio of 1:850 to obtain a soil suspension with a concentration of 769.2g / L, and then stir at a speed of 400rpm while adding a mass concentration of 10%. Ammonia, adjust the pH of the solution to be 7.2, then add the dispersant sodium hexametaphosphate, the addition is 0.1% of the mass of titanium dioxide and add disodium EDTA, the addition is 0.02% of the soil mass, and then continue to stir at the same speed 15min;

[0049] B, in the soil suspension prepared in step A, add inorganic compound fertilizer, addition is 0.2% of soil quality, then continue with the rotating speed of 400rpm, stir 15min, make the soil suspension containing inorganic compound fertilizer;

[0050] C, with the soil suspension prepared in step B, utilize a horizontal sand mill to carry out cyclic and repeated wet sand grinding until the particle size of the suspended matter in the solution is less than 0.1 μm to obtain a na...

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Abstract

The invention relates to a method for preparing nano soil, and belongs to the technical field of nano preparation. The preparation process specifically comprises the following steps: dissolving titanium dioxide and soil in a mass ratio of 1:(800-1000) in water to obtain a soil suspension solution with a concentration of 700-800 g / L, then adding ammonia water while stirring, adjusting the pH valueof the solution to 7-7.5, then adding a dispersant and an EDTA disodium, continuing to stir for 10-20min at the same speed, then adding an inorganic compound fertilizer, continuing to stir for 10-20 min, performing repeated wet sanding until the particle size of the suspended matter in the solution is less than 0.1 [mu]m, then performing spray drying and jet milling, and then physically mixing with a bio-organic fertilizer to obtain the nano soil. The nano soil prepared in the invention has good gas permeability and is not easy to harden, and can promote photosynthesis and pest resistance of crops and accelerate absorption of various fertilizers and other micronutrients by crops, thereby effectively improving the yield and the quality of the crops.

Description

technical field [0001] The invention belongs to the technical field of nanometer preparation, and in particular relates to a method for making nanometer soil, which can greatly improve the performance of soil, be more conducive to the growth of crops and improve the quality of agricultural products. Background technique [0002] Nanotechnology is a cutting-edge and interdisciplinary science. At present, its rapid development has become the mainstream of the development of science and technology in the world. The rapid development of high technology has higher and higher requirements for high-performance materials, and the preparation technology of nano-materials provides a new way for the development of high-performance new materials and the improvement of the performance of existing materials. [0003] Soil is one of the main natural resources that human beings rely on for survival. With the frequent cultivation of soil, various pollutants are input into soil through variou...

Claims

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Application Information

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IPC IPC(8): A01G24/10A01G24/20A01G24/30A01G24/00
CPCA01G24/00A01G24/10A01G24/20A01G24/30
Inventor 张千张川张建平
Owner HEBEI MILSON TITANIUM DIOXIDE
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