Method for rapidly providing medium and microelement nutrients to granular fertilizer

A technology of medium and trace elements and granular fertilizers, applied in fertilizer mixtures, ammonium orthophosphate fertilizers, layered/coated fertilizers, etc., can solve problems affecting chlorophyll synthesis, nitrate accumulation, and restricting agricultural development, and achieve flexible formula switching , Add the effect of minimalist process

Inactive Publication Date: 2017-11-24
HUBEI FORBON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3. Magnesium participates in the conversion process of phosphoric acid, without magnesium, the output cannot be formed
3. Sulfur is not a component of chlorophyll, but it affects the synthesis of chlorophyll
2. Manganese deficiency inhibits protein synthesis, causing nitrate to accumulate in plants, making plants harmful
2. When molybdenum is deficient, molybdenum protein cannot be synthesized, resulting in the accumulation of nitrate in plants, making plant food harmful
3. Molybdenum deficiency affects nitrogen fixation by nitrogen-fixing bacteria
[0018] However, fertilizer companies have encountered a problem in the process of producing fertilizers containing medium and trace elements: among the 10 trace elements required by crops, except for sulfur and boron, the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0038] Provide zinc and sulfur elements for urea granules, the target is: urea + 0.8% Zn + 1% S (the mass fraction of urea granules is 0.8% zinc and 1% sulfur)

[0039] Medium and trace element nutrient formula:

[0040] Zinc oxide powder 25% + sulfur powder 25% + 38% water + 1% sodium naphthalenesulfonate formaldehyde condensate + 5% ethylene glycol + 1% dextrin + 1.5% ethanol + 3% bentonite + 0.5% brilliant blue pigment.

[0041] Coating step:

[0042]In the disc coating machine, add 40 kg of the above-mentioned medium and trace element coating agent to 1 ton of urea granules, and stir quickly until the surface of all urea is uniformly blue, that is, the formula is urea + 0.8% Zn +1% S granular urea fertilizer product containing medium and trace elements.

Embodiment example 2

[0044] Provide boron element for granular compound fertilizer. The target is: compound fertilizer +0.16% B (the mass fraction of boron element wrapped in compound fertilizer particles is 0.16%).

[0045] Medium and trace element nutrient formula:

[0046] 600 mesh boron oxide powder 50%+36% water+5% sodium lignosulfonate+3% ethylene glycol+2% dextrin+0.5% ethanol+3% bentonite+0.5% lemon yellow pigment.

[0047] Coating steps:

[0048] In the disc coating machine, add 20 kg of the above-mentioned medium and trace element coating agent to 1 ton of compound fertilizer granules, and stir quickly until the surface of all compound fertilizers is uniformly blue, and the formula is compound fertilizer+ 0.16% B granular compound fertilizer product containing medium and trace elements.

Embodiment example 3

[0050] Provides zinc and sulfur elements for diammonium phosphate (DAP). The goal is: DAP+1.6%Zn+3%S (1.6% zinc and 3% sulfur are wrapped around the DAP particles)

[0051] Medium and trace element nutrient formula:

[0052] Zinc oxide powder 20% + sulfur powder 30% + 39% water + 2% sodium polyacrylate + 2% sodium dioctyl sulfosuccinate + 2% dextrin + 1.5% ethanol + 3% bentonite + 0.5% brilliant blue pigment.

[0053] Coating steps:

[0054] In the mixer, add 100 kg of the above medium and trace element coating agent to 1 ton of diammonium phosphate particles, and stir quickly until the surface of all the diammonium phosphate is uniformly blue, that is, the formula is DAP+1.6% Zn+3%S granular diammonium phosphate fertilizer product containing medium and trace elements.

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PUM

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Abstract

The present invention relates to a method for rapidly providing medium and microelement nutrients to a granular fertilizer, the method is characterized in that the granular fertilizer is placed in mixing equipment, and the surface of the granular fertilizer is sprayed directly with a layer of medium and microelement nutrient agent according to measurement requirements. The medium and microelement nutrient agent comprises 33% to 76.3% by mass of the medium and trace element nutrients, 1% to 5% by mass of a dispersant, 1% to 5% by mass of a wetting agent, 1% to 5% by mass of a film-forming agent, 0.5% to 5% by mass of a film-forming aid, 0.1% to 5% by mass of a filler, 20% to 40% by mass of water and 0.1% to 2% by mass of a pigment. The method has the advantages that a medium and microelement nutrient layer is rapidly and efficiently formed on the surface of the fertilizer so as to effectively separate the replacement reaction of metal elements and ions in the fertilizer system to ensure the effectiveness of the added medium and microelements, the method is more suitable for BB fertilizer blending; no additional drying is added; the adding process is extremely simple; the method is free of back materials and flexible in formula switching; when the granular fertilizer is marked by colors, and the medium and microelement nutrients are coated, the granular fertilizer can carry different colors, is different from a common fertilizer, also can better meet color marking requirements of BB fertilizers (bulk blend fertilizers).

Description

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Claims

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Application Information

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Owner HUBEI FORBON TECH
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