Water-soluble compound fertilizer synergist and preparation method thereof

A technology of compound fertilizer and synergist, applied in fertilization device, fertilizer mixture, application and other directions, can solve the problems of easy leakage of K element, easy volatilization of N element, easy fixation of P element, etc., so as to improve the utilization rate of fertilizer, increase the Fertilizer efficiency, the effect of large adsorption capacity

Inactive Publication Date: 2014-09-24
青岛超越生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the defects that N element is easy to volatilize, P element is easy to fix, and K element is easy to leak when the current water-soluble compound fertilizer with complex components is used, the present invention provides a water-soluble compound fertilizer synergist. The agent is composed of fine gel particles polymerized by inorganic matrix and carboxylic acid and amide materials, which are quickly dispersed in water in the form of fine gel particles, which can absorb and carry N, P and K in water-soluble compound fertilizers , and attached to the roots of plants, providing a local microcirculation system, promoting the absorption of nutrients by plants and preventing nutrient loss

Method used

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  • Water-soluble compound fertilizer synergist and preparation method thereof
  • Water-soluble compound fertilizer synergist and preparation method thereof
  • Water-soluble compound fertilizer synergist and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) 50 parts by weight of silica gel was stirred by microwave oscillation to make a suspension with a concentration of 10wt%, and then added sodium tripolyphosphate with a mass of 0.2% of silica gel to disperse for 20-30 minutes;

[0038] (2) Under the condition of 65°C, the silica gel suspension obtained in step 1) was stirred and acidified with 25 parts by weight of acetic acid for 1 hour, and then aged for 24 hours;

[0039] (3) Polymerize the acidified compound obtained in step 2) with 5 parts by weight of formamide and 3 parts by weight of catalyst sodium thiosulfate in an enamel reactor. The polymerization conditions in the reactor are: pressure 5MPa, temperature 100°C, paddle The stirring speed is 150rpm, and the stirring reaction time is 30min, so that the acidified silica gel and formamide are polymerized into polyaminocarboxylate silica gel, and then filtered to dry;

[0040] (4) Disperse and coat 1 part by weight of α-cyclodextrin, 0.5 parts by weight of ethy...

Embodiment 2

[0042] (1) Under stirring state, 55 parts by weight of attapulgite was stirred by microwave oscillation to make a suspension with a concentration of 10wt%, and then 0.5% sodium pyrophosphate of attapulgite was added to disperse for 25 minutes;

[0043] (2) Under the condition of 80°C, the suspension obtained in step 1) was stirred and acidified with 30 parts by weight of pimelic acid for 2 hours, and then aged for 48 hours;

[0044] (3) Polymerize the acidified product obtained in step 2) with 10 parts by weight of urea and 5 parts by weight of catalyst sodium bisulfite in an enamel reactor. The polymerization conditions in the reactor are: pressure 7MPa, temperature 85°C, paddle stirring The speed is 200rpm, and the stirring reaction time is 60min, so that the acidified inorganic matrix and urea material are polymerized into polyaminocarboxylic acid inorganic material, and then filtered to dry;

[0045] (4) 2 parts by weight of acrylamide, 1 part by weight of diethylenetriami...

Embodiment 3

[0050] (1) 60 parts by weight of lithium magnesium silicate was stirred by microwave oscillation to make a suspension with a concentration of 10 wt%, and then sodium hexametaphosphate with a mass of 0.3% of lithium magnesium silicate was added to disperse for 20 minutes;

[0051] (2) Under the condition of 70°C, the suspension obtained in step 1) was stirred and acidified with 25 parts by weight of succinic acid for 1.5 hours, and then aged for 24 hours;

[0052] (3) Polymerize the acidified product obtained in step 2) with 15 parts by weight of acetamide and 4 parts by weight of catalyst sodium sulfite in a reactor. The polymerization conditions in the reactor are: pressure 6 MPa, temperature 80-100 ° C, paddle stirring speed 100-200rpm, stirring reaction time 35min, make the acidified inorganic matrix and acetamide material polymerized into polyaminocarboxylate magnesium lithium silicate, and then filter dry;

[0053] (4) Disperse and coat 3 parts by weight of hydroxypropyl ...

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Abstract

The invention discloses water-soluble compound fertilizer synergist. The water-soluble compound fertilizer synergist is fine gel particle formed by polymerizing an inorganic substrate, carboxylic acid and an amide material and comprises the following components in parts by weight: 50-60 parts of inorganic substrate, 25-30 parts of carboxylic acid, 5-15 parts of amide material, 3-5 parts of catalyst, 1-3 parts of tackifier and 0.5-1 part of amino acid compound. The synergist is formed through gel-type inorganic substrate material acidification, amide polymerization and fine coating; the fine gel particle can be rapidly dispersed in water; the synergist has the efficacy of chelate adsorption, is capable of enriching and adsorbing various fertilizer nutrients and has the effects of adsorbing and collecting ammonia, ammonium nitrogen, nitrate, soluble phosphorus and potassium ions; the synergist is attached to roots of plants and has the advantages of providing a local microcirculation system, promoting the nutrient absorption of the plants, preventing the nutrient loss, avoiding the defects that N element is easy to volatilize, P element is easy to fix and K element is easy to leak at the same time and improving the effect of water-soluble compound fertilizers by a large margin.

Description

technical field [0001] The invention relates to the field of fertilizer synergists, in particular to a water-soluble compound fertilizer synergist and a preparation method thereof. Background technique [0002] When using fertilizers, the nutrients necessary for plants such as N, P, and K can be provided by increasing the amount of fertilizers. However, only part of the fertilizer nutrients applied to the soil is actually absorbed by the plants, and a considerable part of the nutrients is not absorbed, but enters the groundwater or volatilizes into the atmosphere. Therefore, simply relying on excessive fertilization to increase fertilizer efficiency will not only cause waste of fertilizers, but also cause environmental pollution. Slow-release fertilizers prevent the loss of fertilizer efficiency through slow release, but due to the slow fertilizer effect and slow effect, they cannot meet the needs of high-efficiency agriculture. In recent years, water-soluble fertilizers h...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/08C05G3/90
Inventor 陈庆曾军堂
Owner 青岛超越生物科技有限公司
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