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Compound liquid fertilizer with high suspension degree, and preparation method and application thereof

A compound liquid, high suspension technology, applied in the application, fertilizer mixture, fertilization device and other directions, can solve the problems of low nutrient content of suspended fertilizer, poor stability and suspension, easy precipitation, etc. Good fluidity and stability, excellent effect of stability

Active Publication Date: 2015-02-25
SOUTH CHINA AGRI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as Chinese Patent Application No. 200910214354.5 "High Nitrogen Organic Suspension Liquid Compound Fertilizer and Its Preparation Method", Chinese Patent Application No. 200910192150.6 "Suspension Type Liquid Compound Fertilizer and Its Preparation Method" and Chinese Patent Application No. 200910214269.9 "An Organic Liquid Compound Fertilizer and Its Preparation Method" Its preparation method ", these patents have only reported the fertilizer that cellulose and bentonite etc. are produced as suspending agent, this method has only carried out 1 suspending action, and suspending agent consumption is big, every 1000 parts by weight needs about 20-120 weight of suspending agent parts, greatly increasing the cost of fertilizer
Moreover, because only one suspension is carried out, the suspension time of the produced suspension fertilizer is limited, and it is easy to settle for a long time, and the stability and suspension performance are poor. When encountering fertilizers with high salt content, the suspension effect is poor, and it is difficult to produce high-concentration suspension fertilizers.
Therefore, most of them can only produce some organic suspension liquid compound fertilizers with low nutrient concentration, and it is difficult to meet the high-concentration nutrient standards of suspension liquid compound fertilizers. These patents exist: 1. The amount of suspension agent is large; 2. Suspension fertilizer Poor stability; 3. Few times of suspension; 4. Low nutrient content of suspended fertilizer; 5. No penetrating agent, wetting agent, spreading agent, synergist and other additives were added to the suspended fertilizer when spraying the leaves, which made the suspension fertilizer The market effect is poor, it is difficult to promote the application

Method used

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  • Compound liquid fertilizer with high suspension degree, and preparation method and application thereof
  • Compound liquid fertilizer with high suspension degree, and preparation method and application thereof
  • Compound liquid fertilizer with high suspension degree, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]1) Fully pulverize macronutrient and micronutrient fertilizers and pass through a 20-mesh sieve to obtain fertilizers with a particle size of 0.85mm;

[0039] 2) Pour 353 parts of urea, 472 parts of ammonium nitrate and 175 parts of water into the mixer, control the temperature at 45°C, and keep stirring for 35 minutes to obtain a 32% nitrogen solution;

[0040] 3) Dissolve 11 parts of sodium alginate, 1 part of syrup, 5 parts of xanthan gum, 1 part of diatomaceous earth, 2 parts of sepiolite and 240 parts of tap water at 50°C and fully stir to obtain suspension I;

[0041] 4) In step 3), add 800 parts of the nitrogen solution prepared in step 2), 120 parts of potassium dihydrogen phosphate, 100 parts of potassium nitrate, 10 parts of boric acid and 10 parts of EDTA-Zn, and fully dissolve to obtain a suspended I-composite Fat;

[0042] 5) Adjust the temperature of the suspended I-compound fertilizer in step 4) to 20°C, add 0.5 parts of sodium naphthalene acetate, 0.5 pa...

Embodiment 2

[0044] 1) Same as step 1) in Example 1;

[0045] 2) Same as step 2) in Example 1;

[0046] 3) Fully stir and dissolve 4 parts of sodium alginate, 7 parts of syrup, 1 part of chitosan, 1 part of diatomaceous earth, 1 part of attapulgite and 241 parts of tap water at 60°C to obtain suspension I;

[0047] 4) In step 3), add 880 parts of the nitrogen solution prepared in step 2), 120 parts of potassium dihydrogen phosphate, 132 parts of potassium chloride, 100 parts of ammonium dihydrogen phosphate, and 20 parts of boric acid, fully dissolve, and obtain suspension I - compound fertilizer;

[0048] 5) Adjust the temperature of the suspended I-compound fertilizer in step 4) to 30°C, add 0.5 parts of sodium naphthalene acetate, 0.5 parts of DA-6, 0.5 parts of gibberellin, 1 part of Span, 1 part of methanol, and 2 parts of coconut Oleamide Betaine. Mix well, add 3 parts of carboxymethylcellulose and 4 parts of sodium hydroxyethyl cellulose, keep stirring, and bottle it after 90 min...

Embodiment 3

[0050] 1) Same as step 1) in Example 1;

[0051] 2) Same as step 2) in Example 1;

[0052] 3) Fully stir and dissolve 6 parts of syrup, 2 parts of chitosan, 1 part of sodium bentonite and 251 parts of tap water at 55°C to obtain suspension I;

[0053] 4) In step 3), add 460 parts of the nitrogen solution prepared in step 2), 140 parts of potassium dihydrogen phosphate, 201 parts of potassium nitrate, 160 parts of ammonium dihydrogen phosphate, and 20 parts of EDTA-Zn, fully dissolve and obtain a suspension I - compound fertilizer;

[0054] 5) Adjust the temperature of the suspended I-compound fertilizer in step 4) to 28°C, add 0.5 parts of DA-6, 0.5 parts of brassinolide, 0.5 parts of triacontanol, 2 parts of glycerin, 1 part of ethanol, 1 Parts of alkylphenol polyoxyethylene ether. Fully stir and mix, add 10 parts of hydroxypropyl methylcellulose, keep stirring, after 60 minutes, bottle it, and obtain the high-suspension compound liquid fertilizer III (such as figure 1 A-...

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Abstract

The invention discloses a compound liquid fertilizer with high suspension degree, and a preparation method and an application thereof, and belongs to the liquid fertilizer industry field. The preparation method comprises the steps: adding macromolecule organic sugar into a clay material to be used as a basal suspending agent I, and carrying out first suspension chelation of a major element and a trace element at the temperature of 40-60 DEG C; followed by controlling the temperature at 20-30 DEG C, slowly adding a plant growth regulator and a surface active material, fully mixing uniformly, finally adding macromolecule cellulose and an analog thereof as a suspending agent II, carrying out second suspension chelation, and fully stirring to obtain the compound liquid fertilizer with high suspension degree. The prepared compound liquid fertilizer with high suspension degree has comprehensive nutrients, high content, low cost, good liquidity, good stability and good dissolvability, and is beneficial for crops to efficiently absorb and utilize. The preparation method is simple in process and easy to implement. The compound liquid fertilizer is an ideal fertilizer source for water and fertilizer integration for drip irrigation, sprinkler irrigation, water flushing and the like.

Description

technical field [0001] The invention belongs to the field of liquid fertilizer industry, and in particular relates to a high-suspension composite liquid fertilizer and its preparation method and application. Background technique [0002] With the rapid development of the fertilizer industry, the development trend of high-concentration, liquefied, compounded and slow-acting fertilizers is becoming more and more obvious. Especially in some agricultural developed countries, such as the United States, Israel, Japan, Canada, etc., almost more than half of them are mainly based on the development of high-concentration liquid compound fertilizers. According to relevant information, generally speaking, every 10% increase in fertilizer concentration can reduce fertilizer packaging, storage, transportation and management costs by about 20%. Liquid fertilizer is a typical high-concentration fertilizer with a fluid appearance. Generally, it can be divided into two categories, one is l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00
Inventor 傅友强沈宏沈坚列
Owner SOUTH CHINA AGRI UNIV
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