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Yellow humic acid-potassium dihydrogen phosphate compound fertilizer and preparation method thereof

A technology of fulvic acid potassium dihydrogen phosphate and compound fertilizer, which is applied in urea compound fertilizer, ammonium orthophosphate fertilizer, alkaline orthophosphate fertilizer, etc., can solve the problems of poor performance of potassium fulvate and achieve lodging resistance Enhancement, quality improvement, yield and quality improvement effects

Pending Publication Date: 2019-01-29
INST OF SOIL & FERTILIZER XINJIANG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing potassium fulvic acid has poor performance in regulating soil acidity and alkalinity and frost resistance, and the existing fulvic acid fertilizer has a role in improving fertilizer efficiency, improving nutrient distribution, improving soil compaction, nitrogen fixation, phosphorus release, and slow release of potassium. It also needs to be further improved

Method used

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  • Yellow humic acid-potassium dihydrogen phosphate compound fertilizer and preparation method thereof
  • Yellow humic acid-potassium dihydrogen phosphate compound fertilizer and preparation method thereof
  • Yellow humic acid-potassium dihydrogen phosphate compound fertilizer and preparation method thereof

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Effect test

Embodiment 1

[0056] Embodiment one: a kind of preparation method of fulvic acid potassium dihydrogen phosphate compound fertilizer

[0057] The preparation method of fulvic acid potassium dihydrogen phosphate compound fertilizer of the present invention comprises the steps:

[0058] (1) Put water, ethylamine, and KOH into the reaction vessel in sequence.

[0059] (2) Stir the materials in step (1) evenly and heat to above 65°C.

[0060] (3) add urea, boric acid, ZnSO in the solution after step (2) heating again 4 , MnSO4, liquid fulvic acid and phosphoric acid.

[0061] (4) Stir the material in step (3) at a constant speed for 1h-3h, adjust the pH value to 6.2-6.5, and the specific gravity to 1.28-1.31.

Embodiment 2

[0062] Embodiment two: a kind of fulvic acid potassium dihydrogen phosphate compound fertilizer

[0063] Utilize the preparation method of the fulvic acid potassium dihydrogen phosphate compound fertilizer that embodiment one provides, comprise making according to the raw material of following table 1 weight part:

[0064] Table 1: Fulvic acid potassium dihydrogen phosphate compound fertilizer formula table:

[0065]

[0066] In the present invention, KOH is 99% pure KOH.

[0067] In the present invention, the nitrogen content of urea is not less than 46.2%.

[0068] In the present invention, the content of liquid fulvic acid is not less than 27% of fulvic acid.

Embodiment 3

[0069] Embodiment three: compound fertilizer preparation method of the present invention

[0070] In the present invention, water, ethylamine, and KOH are put into the reaction vessel in sequence, and then the materials are heated to above 70°C-75°C.

[0071] In the present invention, all heated water, ethylamine, KOH, urea, boric acid, ZnSO 4 , MnSO 4 1. After adding liquid fulvic acid and phosphoric acid, stir at a constant speed for 2 hours, adjust the pH value to 6.3-6.5, and the specific gravity to 1.28-1.30.

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Abstract

The invention discloses a yellow humic acid-potassium dihydrogen phosphate compound fertilizer and a preparation method thereof. The compound fertilizer comprises the following raw materials in part by weight: 610-660 parts of water, 350-390 parts of ethylamine, 120-140 parts of KOH, 160-200 parts of urea, 19-22 parts of boric acid, 15-21 parts of ZnSO4, 16-20 parts of MnSO4, 550-650 parts of liquid yellow humic acid, and 17-21 parts of phosphoric acid. The compound fertilizer of the invention has the functions of balanced nutrients, high fertilizer efficiency, improved quality and increased yield, has the functions of nitrogen fixation, phosphorus dissolving, slow release of potassium, and improving of the fertilizer utilization rate, has the unique functions of regulating soil pH and improving soil hardening and the like, can promote plant growth and improve plant drought resistance and anti-freezing ability, can increase a walnut single-fruit weight from 10.6 g to 13.1 g, an oleic acid content from 15.7% to 20%, and a yield by 7.3%, and reduces phosphorus fixation, promotes phosphorus absorption and increase the phosphorus utilization rate by using yellow humic acid to protect awater-soluble phosphorus fertilizer or a phosphorus-based compound fertilizer.

Description

technical field [0001] The invention relates to a production method of compound fertilizer, belonging to the field of organic-inorganic compound fertilizer. Background technique [0002] Fulvic acid is a gray-black powdery substance soluble in water. It is a broad-spectrum plant growth regulator, which can promote plant growth, especially properly control the opening of crop leaf stomata, reduce transpiration, play an important role in drought resistance, improve plant stress resistance, increase yield and improve quality. The main application objects are wheat, corn, sweet potato, millet, rice, cotton, peanut, rapeseed, tobacco, sericulture, melon and fruit, vegetables, etc. [0003] Fulvic acid is extracted from low-grade coal (peat, lignite and weathered coal), and its composition structure is relatively simple, mainly aromatic hydroxycarboxylic acids, which are acidic and stable in the natural environment. Ions are easy to flocculate. Biochemical fulvic acid, also know...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/00C05G3/80
CPCC05B7/00C05G3/00C05G3/80C05C9/00C05D9/02C05F11/02
Inventor 王新勇孟阿静杨自莹王冰邓浩潘今战董刚山
Owner INST OF SOIL & FERTILIZER XINJIANG ACAD OF AGRI SCI
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