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Fulvic acid chelated fertilizer and preparation method thereof

A technology of fulvic acid and chelating agent, which is applied in the direction of ammonium orthophosphate fertilizer, alkaline orthophosphate fertilizer, phosphate fertilizer, etc., can solve the problems of negligible chelation, low humic acid content, and reduced planting yield, so as to increase Effects of fruit bulk density, easy absorption of nutrients, and improvement of soil environment

Pending Publication Date: 2020-06-26
王志
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nitrogen, phosphorus, and potassium are essential elements for plant growth, but the content of nitrogen, phosphorus, and potassium in organic fertilizers is low. If farmers use organic fertilizers instead of large-scale chemical fertilizers on a large scale, the planting yield will be greatly reduced
[0003] Therefore, chelating fertilizers came into being. Most of the chelating fertilizers in the market currently only add humic acid and other substances. Humic acid has a certain chelating effect, but the effect rate is low, and the content of humic acid in the fertilizer is not high, so it can really play a role. chelation effect is negligible

Method used

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  • Fulvic acid chelated fertilizer and preparation method thereof
  • Fulvic acid chelated fertilizer and preparation method thereof
  • Fulvic acid chelated fertilizer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0025] A fulvic acid chelated fertilizer (nitrogen, phosphorus and potassium formula 22-8-10), comprising the following raw materials in parts by weight: 38.3 parts of urea, 22.3 parts of monoammonium phosphate, 16.2 parts of potassium chloride, 18.9 parts of fulvic acid , 0.2 parts of disodium edetate, and 0.6 parts of anti-caking agent.

[0026] The method for preparing the fulvic acid chelate fertilizer by adopting the above-mentioned raw materials comprises the following steps:

[0027] (1) Add urea, monoammonium phosphate, potassium chloride, fulvic acid, and disodium ethylenediaminetetraacetate into the mixer, and stir evenly to prepare a mixture.

[0028] (2) Put the mixture into a granulator for granulation, then enter the first dryer and heat it to 210-230°C for 5-7 minutes, then cool it, pass through a fine powder sieve and a large granule sieve, and the qualified ones enter the next In one process, unqualified products enter the pulverizer to continue crushing to o...

Embodiment 2

[0035] A kind of fulvic acid chelated fertilizer (nitrogen, phosphorus and potassium formula 25-8-9), comprising the following raw materials in parts by weight: 41.5 parts of urea, 17.8 parts of monoammonium phosphate, 16.2 parts of potassium chloride, 20.2 parts of fulvic acid , 0.2 parts of disodium edetate, and 0.7 parts of anti-caking agent.

[0036] Refer to Example 1 for the method for preparing fulvic acid chelated fertilizer using the above-mentioned raw materials.

[0037] Wherein the weight ratio of the fulvic acid added in step (1) and step (4) is 7:3.

Embodiment 3

[0039] A kind of fulvic acid chelated fertilizer (nitrogen, phosphorus and potassium formula 16-10-14), comprising the following raw materials in parts by weight:

[0040] 20.9 parts of urea, 33.4 parts of monoammonium phosphate, 21 parts of potassium chloride, 20.4 parts of fulvic acid, 0.2 parts of disodium edetate, and 0.6 parts of anti-caking agent.

[0041] Refer to Example 1 for the method for preparing fulvic acid chelated fertilizer using the above-mentioned raw materials.

[0042] Wherein the weight ratio of the fulvic acid added in step (1) and step (4) is 7:3.

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Abstract

The invention provides a fulvic acid chelated fertilizer, which comprises the following raw materials in parts by weight: 20-50 parts of urea, 20-40 parts of monoammonium phosphate, 15-30 parts of potassium chloride or potassium sulfate, 18.75-25 parts of fulvic acid, 0.1-0.3 part of a chelating agent and 0.4-0.8 part of an anti-hardening agent. The invention also provides a preparation method ofthe fulvic acid chelated fertilizer. According to the invention, the fulvic acid chelated fertilizer is rich in fulvic acid, and is added with a strong chelating agent, so that the fertilizer truly plays a chelating role, and crops can absorb various trace metal nutrient elements easily; the fulvic acid chelated fertilizer contains macroelements nitrogen, phosphorus and potassium required by plantgrowth, can supplement macroelements, medium elements and trace elements required by crop growth, has the effects of resisting diseases, insects, lodging, continuous cropping, cold and drought, improving crop quality, increasing fruit volume weight and the like, and finally achieves the purposes of increasing yield and income and improving soil.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a fulvic acid chelated fertilizer and a preparation method thereof. Background technique [0002] According to the call of the Ministry of Agriculture and Rural Affairs of the People's Republic of China, it is imperative to build a beautiful China and restore the soil, so as to achieve organic green agricultural products from soil to table. Agricultural planting should reduce the use of large chemical fertilizers and promote the use of organic fertilizers. Nitrogen, phosphorus, and potassium are essential elements for plant growth, but the content of nitrogen, phosphorus, and potassium in organic fertilizers is low. If farmers use organic fertilizers instead of large-scale chemical fertilizers on a large scale, the planting yield will be greatly reduced. [0003] Therefore, chelating fertilizers came into being. Most of the chelating fertilizers in the market currently only ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/30C05G3/00C05G3/80C05G5/12C05G5/30
CPCC05B7/00C05G3/00
Inventor 王志王辅茁
Owner 王志
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