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Method for preparing nano-selenium-containing amino acid foliar fertilizer by regulation of radix platycodonis

The technology of Platycodon grandiflorum polysaccharide and nano-selenium, which is applied in the field of fertilizers, can solve the problems of high production cost, low biological activity and safety of nano-selenium and amino acids, and achieves improved use value and economic benefit, efficient utilization, improved yield and high efficiency. The effect of decolorization rate

Inactive Publication Date: 2017-06-27
GUANGZHOU JUCHAN MODERN AGRI RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a method for regulating and preparing amino acid foliar fertilizers containing nano-selenium by platycodon polysaccharides, effectively solving the high production costs, low biological activity and safety of nano-selenium and amino acids in the prior art problems, and can effectively promote crop growth, improve crop quality, and increase crop yield

Method used

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  • Method for preparing nano-selenium-containing amino acid foliar fertilizer by regulation of radix platycodonis

Examples

Experimental program
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Effect test

Embodiment 1

[0036] A method for regulating and preparing amino acid foliar fertilizer containing nano-selenium by platycodon polysaccharide, comprising the following steps:

[0037] (1) Preparation of nano-selenium solution

[0038] Mix selenous acid and bellflower polysaccharide solution, add water and stir evenly; add ascorbic acid solution, shake and mix well, so that the molar ratio of selenous acid and ascorbic acid in the reaction system is 1:3, and the concentration of selenous acid is 0.01mmol / L, The concentration of ascorbic acid is 0.03mmol / L, the mass fraction of Campanulaceae polysaccharide is 0.02%, the reaction mixture is placed in a water bath at a temperature of 80°C for 6 hours, the solution turns red, and a solution containing red nano-selenium is obtained;

[0039] (2) Preparation of amino acid solution

[0040] A. Preparation of soybean meal compound amino acid stock solution

[0041]Dry the soybean meal to remove impurities, pass through a 40-mesh sieve, add a 5mol / ...

Embodiment 2

[0049] A method for regulating and preparing amino acid foliar fertilizer containing nano-selenium by platycodon polysaccharide, comprising the following steps:

[0050] (1) Preparation of nano-selenium solution

[0051] Mix selenous acid and bellflower polysaccharide solution, add water and stir evenly; add ascorbic acid solution, shake and mix well, so that the molar ratio of selenous acid and ascorbic acid in the reaction system is 1:5, and the concentration of selenous acid is 0.01mmol / L, The concentration of ascorbic acid is 0.05mmol / L, the mass fraction of Platycodon grandiflorum is 0.02%, the reaction mixture is placed in a water bath at 60°C for 4 hours, the solution turns red, and a solution containing red nano-selenium is obtained;

[0052] (2) Preparation of amino acid solution

[0053] A. Preparation of soybean meal compound amino acid stock solution

[0054] Dry the soybean meal to remove impurities, pass through a 40-mesh sieve, and add a 3.1mol / L sulfuric acid...

Embodiment 3

[0062] A method for regulating and preparing amino acid foliar fertilizer containing nano-selenium by platycodon polysaccharide, comprising the following steps:

[0063] (1) Preparation of nano-selenium solution

[0064] Mix selenous acid and bellflower polysaccharide solution, add water and stir evenly; add ascorbic acid solution, shake and mix well, so that the molar ratio of selenous acid and ascorbic acid in the reaction system is 1:8, and the concentration of selenous acid is 0.01mmol / L, The concentration of ascorbic acid is 0.08mmol / L, the mass fraction of Campanulaceae polysaccharide is 0.02%, the reaction mixture is placed in a water bath at a temperature of 40°C for 2 hours, the solution turns red, and a solution containing red nano-selenium is obtained;

[0065] (2) Preparation of amino acid solution

[0066] A. Preparation of soybean meal compound amino acid stock solution

[0067] Dry the soybean meal to remove impurities, pass through a 40-mesh sieve, add 7mol / L...

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Abstract

The invention discloses a method for preparing a nano-selenium-containing amino acid foliar fertilizer by regulation of radix platycodonis. The method comprises the following steps: preparing a nano-selenium solution with an ascorbic acid reduction method by taking radix platycodonis and seleninic acid as raw materials; preparing a bean pulp compound amino acid stoste with a sulphuric acid hydrolysis method by taking beam pulp as a raw material, adsorbing and decoloring the stoste with modified activated carbon treated by a 0.25% KOH solution, filtering and sterilizing filtrate with cobalt-60, so as to obtain a bean pulp compound amino acid solution; finally, uniformly mixing fulvic acid, the nano-selenium solution and the bean pulp compound amino acid solution, so as to obtain the nano-selenium-containing amino acid foliar fertilizer. The nano-selenium-containing amino acid foliar fertilizer disclosed by the invention has the advantages that the selenium content and the yield of crops can be improved, the growth of the crops is promoted, the stress resistance of the crops is enhanced, and the quality of the crops is improved; in addition, the preparation processes are simple, the operation is easy, and the production cost is comparatively low, therefore, the nano-selenium-containing amino acid foliar fertilizer has good economic and social benefits and wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a method for regulating and preparing an amino acid foliar fertilizer containing nano-selenium by platycodon polysaccharide. Background technique [0002] China is a big selenium-deficient country. Soil surveys show that 72% of my country's areas are selenium-deficient and low-selenium areas, and about two-thirds of the country's population has insufficient selenium intake to varying degrees, seriously affecting the health of local residents. Therefore, the development of selenium-enriched fertilizers and the development of selenium-enriched agricultural products have become research hotspots in the fields of agricultural science, food science and medicine. [0003] At present, the common selenium-containing fertilizers on the market are mainly inorganic selenium fertilizers. Due to the influence of soil fixation and air drift when inorganic selenium is sprayed o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05C11/00C05G3/00C05G5/20C05D9/02C05F5/002C05F11/00C05F11/10
Inventor 不公告发明人
Owner GUANGZHOU JUCHAN MODERN AGRI RES INST CO LTD