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Preparation method and application of selenium-enriched fertilizer dedicated to tea

A special-purpose, selenium-enriched fertilizer technology, applied in fertilization methods, applications, liquid fertilizers, etc., can solve the problems of high labor cost, inorganic selenium residues, low selenium conversion rate, etc., and achieve high absorption and utilization rate, increase adhesion , the effect of increasing resistance

Inactive Publication Date: 2016-10-12
AGRI RESOURCE & ENVIRONMENT RES INST GUANGXI ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages are as follows: first, the serious residue of inorganic selenium has a potential risk of toxicity; second, the conversion rate of selenium in agricultural products is low and the cost is high; The workload of spraying is heavy and the labor cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A special liquid selenium-enriched fertilizer for tea, which is prepared by the following steps:

[0029] (1) Weigh 200 grams of sodium selenite, dissolve it in 2 liters of distilled water or deionized water, and make it into the original mother solution a;

[0030] (2) Shake 2 liters of the original mother solution a with 7 liters of 15%-20% amino acid solution at 35°C-45°C at a frequency of 60-120 swings / minute, and chelate for 48-72 hours to form 9 liters of chelating solution b;

[0031] (3) Weigh 20 mg of aluminum chloride and dissolve it in 100 ml of distilled or deionized water, and then mix it with 900 ml of 5% cystine solution to obtain nutrient solution c;

[0032] (4) Mix 9 liters of chelating solution b with 1 liter of nutrient solution c to form 10 liters of chelating nutrient solution d;

[0033] (5) Add 20 grams of sodium alkylbenzene sulfonate chemically pure to 10 liters of chelating nutrient solution d as an adhesive, and then carry out fermentation ...

Embodiment 2

[0037] A special liquid selenium-enriched fertilizer for tea, which is prepared by the following steps:

[0038] (1) Weigh 160 grams of sodium selenite, dissolve it in 2 liters of distilled water or deionized water, and make it into the original mother solution a;

[0039] (2) Shake the original mother liquid a and 20% amino acid solution at 35°C-45°C, the volume ratio of the original mother liquid a to the amino acid solution is 1:3, and the oscillation frequency is 60-120 swings / minute, Chelate for 48-60 hours to form chelate solution b;

[0040] (3) Dissolve aluminum chloride in water to obtain an aluminum chloride solution with a concentration of 0.1g / l, and then mix it with a cystine solution with a mass concentration of 3% to obtain a nutrient solution c. The aluminum chloride solution is mixed with The volume ratio of cystine solution is 1:10;

[0041] (4) Mix the chelating solution b and the nutrient solution c according to the volume ratio of 8:1 to obtain the chela...

Embodiment 3

[0045] A special liquid selenium-enriched fertilizer for tea, which is prepared by the following steps:

[0046] (1) Weigh 240 grams of sodium selenite, dissolve it in 2 liters of distilled water or deionized water, and make it into the original mother solution a;

[0047] (2) Shake the original mother liquid a and 15% amino acid solution at 35°C-45°C, the volume ratio of the original mother liquid a to the amino acid solution is 1:4, and the oscillation frequency is 60-120 swings / minute, Chelate for 48-60 hours to form chelate solution b;

[0048] (3) Dissolve aluminum chloride in water to obtain an aluminum chloride solution with a concentration of 0.3g / l, and then mix it with a cystine solution with a mass concentration of 8% to obtain a nutrient solution c. The aluminum chloride solution is mixed with The volume ratio of cystine solution is 1:8;

[0049] (4) Mix the chelating solution b and the nutrient solution c according to the volume ratio of 10:1 to obtain the chela...

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Abstract

The invention provides a preparation method and application of a selenium-enriched fertilizer dedicated to tea. The preparation method comprises the following steps: dissolving sodium selenite in water to prepare an original mother solution, wherein the sodium selenite concentration is 80 to 120g / l; mixing the original mother solution and an amino acid solution of which the mass concentration is 15% to 20%, and then carrying out vibration chelation to obtain a chelated solution; mixing an aluminum chloride solution with a 3 to 8% cystine solution uniformly to obtain a nutrient solution; mixing the chelated solution with the nutrient solution uniformly to obtain a chelated nutrient solution; adding sodium alkyl benzene sulfonate into the chelated nutrient solution, and carrying out secondary chelation with an alcoholic fermentation filtrate under a 25 to 35 DEG C stirring condition, so as to obtain the selenium-enriched fertilizer dedicated to tea. According to the selenium-enriched fertilizer dedicated to tea, 90% or more of inorganic selenium is converted into organic selenium such as selenomethionine and selenocystine, so that the risk of poisoning is eliminated, the absorption and conversion rates of selenium are improved, and the consumption of sodium selenite as well as the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of agricultural fertilization, and in particular relates to a preparation method and application of a special liquid selenium-enriched fertilizer for tea. Background technique [0002] At present, the vast majority of selenium-enriched foliar fertilizers on the market generally use selenite or selenite after fermentation or complexing agents for multiple foliar sprays. If tea gardens on non-selenium-enriched soils want to achieve The tea raw materials produced meet the selenium-enriched industry standard, and need to be sprayed at least three times to realize the production of selenium-enriched agricultural products. The main disadvantages are as follows: first, the serious residue of inorganic selenium has a potential risk of toxicity; second, the conversion rate of selenium in agricultural products is low and the cost is high; The workload of each spraying is large and the labor cost is high. Contents o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00A01C21/00
CPCA01C21/00C05C11/00C05G3/00C05G5/23C05D9/00C05F5/008
Inventor 刘永贤农梦玲梁潘霞潘丽萍黄雁飞李文宝熊柳梅
Owner AGRI RESOURCE & ENVIRONMENT RES INST GUANGXI ACADEMY OF AGRI SCI
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