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Novel composite mineral fertilizer and its production process

A compound fertilizer and mineral technology, applied in the direction of fertilization device, fertilizer mixture, application, etc., can solve the problems of weakening fertilizer adsorption capacity, preventing pests and harmful bacteria, affecting performance, etc., to prevent pests and diseases, inhibit pests and diseases, and have good water permeability sexual effect

Inactive Publication Date: 2003-03-19
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the adsorption active sites on the surface of diatom shells and clay minerals, including surface hydroxyl groups, Bronsted acid sites, and Lewis acid sites, are often covered by adsorbed water molecules at room temperature, thus weakening their ability to absorb fertilizers. Adsorption capacity
Therefore, directly using diatomaceous earth as a compound fertilizer carrier will undoubtedly affect the full play of its performance.
On the other hand, the compound fertilizers described in the above two patents do not add antibacterial components, which is not conducive to the control of pests and harmful bacteria.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Using diatomite white clay in Shengxian County, Zhejiang Province as raw material, the carrier of diatomite fertilizer is obtained after simple sedimentation and purification, and its chemical composition

[0027] And the content (weight%) is SiO 2 , 65.24; Al 2 o 3 , 15.96; Fe 2 o 3 , 3.12; CaO, 0.50; MgO,

[0028] 1.66;K 2 O, 1.17; Na 2 O, 0.29; TiO 2 , 0.56; MnO 2 , 0.01; loss on ignition, 10.46. mine

[0029] The quartz content in the material composition is 8.85%. Weigh 5kg of this carrier, calcinate it at 700°C for 1h, and then pulverize it to

[0030] Below 80 mesh.

[0031] (2) Spray 1.5 L of 5% copper sulfate solution on the diatomaceous earth carrier, and stir evenly.

[0032] (3) Weigh 4kg of urea, 4kg of heavy calcium and 2kg of potassium chloride, and mix them evenly in a ball mill. then with diatoms

[0033] The soil carrier is mixed evenly, granulated, and the diatomite compound fertilizer is obtained after drying. The di...

Embodiment 2

[0036] (1) With Guangdong Buchang diatomite as raw material, its chemical composition and content (weight %) are SiO 2 , 70.40; Al 2 o 3 ,

[0037] 8.62; Fe 2 o 3 , 2.05; CaO, 0.32; MgO, 0.84; K 2 O, 0.13; Na 2 O, 0.11; TiO 2 , 0.40;

[0038] MnO 2 , 0.01; loss on ignition, 8.48. The quartz content in the mineral composition is 9.98%. Weigh this carrier 5kg,

[0039] Calcined at 800°C for 1 hour, then crushed to below 80 mesh.

[0040] (2) Spray 1.5 L of copper sulfate solution with a concentration of 5% on the diatomite carrier, and stir evenly.

[0041] (3) Weigh 4.5kg carbon amine, 4.2kg normal calcium and 2kg potassium chloride, and mix and stir evenly in a ball mill. then with

[0042] The diatomite carrier is mixed evenly, granulated, and the diatomite compound fertilizer is obtained after drying. The diatomite carrier: Cu 2+ : Carbon amine:

[0043] Normal calcium: potassium chloride is 25:0.15:22.5:21:10.

[0044] The novel mineral compou...

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PUM

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Abstract

The novel composite mineral fertilizer includes diatomite as carrier, antiseptic metal salt, nitrogen fertilizer, phosphate fertilizer and potash fertilizer. The production process of the fertilizer includes: dressing and purifying; activation and crushing of diatomite carrier; addition of antiseptic metal salt; mixing and crushing nitrogen fertilizer, phosphate fertilizer and potash fertilizer; mixing diatomite carrier with nitrogen fertilizer, phosphate fertilizer and potash fertilizer in certain proportion, pelletizing and drying. The activated diatomite has powerful adsorption capacity, and the composite fertilizer is ventilative, moisture maintained and delay released, has the functions of loosening soil, inhibit pests and diseases, and may be used for several kinds of crops.

Description

technical field [0001] The invention relates to a novel mineral compound fertilizer and a preparation method thereof, in particular to a novel mineral compound fertilizer which has good water permeability, moisture retention, air permeability and slow-release properties, and has the characteristics of loosening the soil and inhibiting pests and diseases, and its preparation method. Preparation. Background technique [0002] Long-term application of chemical fertilizers can easily cause soil compaction, and at the same time make chemical fertilizers easy to decompose, volatilize or lose with water in the soil, resulting in reduced fertilizer efficiency. Therefore, for a long time, people have been exploring ways to prolong the fertilizer efficiency and improve its utilization rate. The methods that have been adopted are such as wrapping slow-dissolving substances on the outside of fertilizer granules, but this method has been proved to be ineffective, and the cost is high an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 袁鹏王德强
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI