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A kind of compound fertilizer containing zinc and preparation method thereof

A compound fertilizer and masterbatch technology, which is applied to inorganic fertilizers, ammonium salt fertilizers, urea compound fertilizers, etc., to achieve the effects of easy absorption, good granulation effect, and easy control of granulation conditions

Active Publication Date: 2016-03-30
HUBEI XIANGYUN GROUP CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention mainly solves the problem that zinc in the form of inorganic salt coexists with phosphorus in the production of compound fertilizers, and can produce compound fertilizers containing zinc at low cost, while ensuring that the respective fertilizer effects of zinc and phosphorus are not affected

Method used

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  • A kind of compound fertilizer containing zinc and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 provides a kind of zinc-containing compound fertilizer that is used for wheat, comprises zinc-containing masterbatch particle and phosphorus, potassium fertilizer particle, zinc-containing masterbatch raw material: 40 parts of urea, 50 parts of ammonium chloride, 10 parts of zinc sulfate, Crush the above raw materials; heat urea to 120°C to melt, add ammonium chloride and zinc sulfate powder into the urea paddle and stir evenly. The above mixed slurry is sprayed from the top of the tower cooler, and after condensation, zinc-containing masterbatch particles are formed. The masterbatch contains 30% nitrogen and 2% zinc.

[0028] Compound fertilizer raw materials: 40 parts of urea, 30 parts of ammonium chloride, 11 parts of monoammonium phosphate, 10 parts of zinc-containing masterbatch granules, and 9 parts of potassium chloride. Grind urea, monoammonium phosphate, ammonium chloride and potassium chloride and mix them evenly, pass steam through the ammonia tu...

Embodiment 2

[0030] Embodiment 2 provides a special zinc-containing compound fertilizer for corn, including zinc-containing masterbatch particles and phosphorus and potassium fertilizer particles, zinc-containing masterbatch raw materials: 30 parts of urea, 65 parts of ammonium chloride, 5 parts of zinc sulfate, and The above raw materials are pulverized; the urea is heated to 120°C to melt. Add ammonium chloride and zinc sulfate powder into the urea slurry and stir evenly. The above mixed slurry is sprayed from the top of the tower cooler, and after condensation, zinc-containing masterbatch particles are formed. The masterbatch contains 30% nitrogen and 1% zinc.

[0031] Compound fertilizer raw materials: 30 parts of urea, 34 parts of ammonium chloride, 10 parts of monoammonium phosphate, 10 parts of zinc-containing masterbatch granules, and 16 parts of potassium chloride. Grind urea, monoammonium phosphate, ammonium chloride and potassium chloride, mix them evenly, pass steam, pass thro...

Embodiment 3

[0032] Example 3: Field application effect of adding zinc element compound fertilizer to wheat

[0033] (1) The nitrogen, phosphorus and potassium content of the test fertilizer was 40%, and the compound fertilizer containing 0.2% zinc (the fertilizer in Example 1), and the comparative fertilizer was the compound fertilizer with the same formula without zinc.

[0034] (2) The experimental site is Group 2, Zhongxin Village, Guanmiao Town, Guangshui City, Hubei Province, with sandy loam soil and medium fertility. Soil sample detection: organic matter 2.8%, alkaline hydrolyzed nitrogen 98mg / kg, available phosphorus 7.4mg / kg, available potassium 86mg / kg, available zinc 0.73, previous crop rice.

[0035] (3) Crops: wheat, variety: Zhengmai 9023.

[0036] (4) Experimental design: 2 treatments, four repetitions, the area of ​​the plot is 20㎡.

[0037] Treatment 1. Compound fertilizer 40kg / mu. (CK)

[0038] Treatment 2. Add zinc compound fertilizer 40kg / mu

[0039] Treatment 3. C...

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Abstract

The invention discloses a zinc-containing compound fertilizer and a preparation method thereof, belonging to the technical field of compound fertilizers. The compound fertilizer is prepared by mixing 10-50 weight parts of monoammonium phosphate, 9-30 weight parts of potassium chloride, phosphorus and potassium fertilizer granules prepared by granulating 5-45 weight parts of ammonium chloride and 20-40 weight parts of urea through an amino acid method, and 5-20 weight parts of zinc-containing master batch particles, wherein the source of the zinc-containing master batch particles is prepared by performing high tower granulation on 30-50 weight parts of urea, 10-65 weight parts of ammonium chloride and 5-25 weight parts of zinc sulfate. According to the compound fertilizer, the zinc sulfate is coated by the urea and ammonium chloride and is physically isolated by phosphorus, so that a chemical reaction between phosphorus and zinc is avoided. Meanwhile, a ratio of zinc to the nitrogen is scientifically prepared, the compound fertilizer is easily absorbed by crops compared with a singly applied zinc fertilizer, the two kinds of particles respectively adopt different granulation methods, the allocation principle of the raw materials in the two kinds of particles refers to allocation according to needs of physical granulation properties, and the zinc-containing compound fertilizer is simple in granulation and good in granulation effect.

Description

technical field [0001] The invention belongs to the technical field of compound fertilizers, in particular to a zinc-containing compound fertilizer and a preparation method thereof. Background technique [0002] The main nutrients in compound fertilizers are nitrogen, phosphorus and potassium. Crop growth needs 18 kinds of essential nutrients, therefore, the nutrients contained in conventional fertilizers cannot fully meet the needs of crops. At present, in my country's agricultural production, it is common for crops to lack zinc. Zinc mainly promotes cell division and reproductive growth. Lack of zinc will lead to short plants, small leaf disease, and stunted growth. The lack of zinc will have a serious impact on crop yield. [0003] Adding zinc sulfate and other zinc-containing inorganic salts directly to compound fertilizers is not effective because phosphorus in chemical fertilizers exists in the form of phosphate. Phosphate ions in phosphate salts and zinc ions in zi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00
CPCC05B7/00C05C3/00C05C9/00C05D1/02
Inventor 李斌张雄风何海勇刘若伟查炎华胡玉峰
Owner HUBEI XIANGYUN GROUP CHEM
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