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Chloride-based slow-release complex fertilizer and production process thereof

A compound fertilizer and slow-release technology, which is applied in the direction of inorganic fertilizers, urea compound fertilizers, and fertilizer mixtures, can solve the problems of reducing the nutrient content of a large number of elements, low total nutrients in fertilizers, and inconvenient application, so as to increase the total nutrient content, Improved soil structure and low production cost

Active Publication Date: 2012-09-05
KINGENTA ECOLOGICAL ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the research on organic polymer-coated controlled-release fertilizers at home and abroad has developed to a relatively high level, the process technology has become increasingly mature, the performance of nutrient controlled release is good, and the problem of high production cost has been initially solved, but it is far away from the field. The widespread application of crops still needs to further reduce production costs; the price of sulfur-coated fertilizers is low, but this process will greatly reduce the nutrient content of a large number of elements, making the total nutrients of fertilizers low; stable fertilizers such as urease inhibitors and nitrification inhibitors cannot It meets the requirements of slow and controlled release performance, and there are problems of uneven mixing and inconvenient application. Therefore, it is of great practical significance to develop a slow and controlled release fertilizer that is easy to apply and suitable for the promotion of field crops.

Method used

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  • Chloride-based slow-release complex fertilizer and production process thereof
  • Chloride-based slow-release complex fertilizer and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 Making 45% (15-15-15) chlorine-based slow-release compound fertilizer. Take each component by the following parts by weight:

[0036] Urea 20

[0037] Monoammonium phosphate 30

[0038] Potassium chloride 25

[0039] weathered coal 12

[0040] The above-mentioned solid components crushed to 80-100 mesh are sent into a mixer to stir evenly, and the uniformly stirred material is sent to a granulator, and sprayed with a slow-release binder (8 parts by weight) for granulation (Φ=2.0 -4.75mm), send the granulated material to the dryer for drying, and then sieve, the unqualified large-grained material is crushed and then returned to the granulator for re-granulation with fine powder, and the qualified material is cooled, measured and packaged. The finished product of 45% (15-15-15) chlorine-based slow-release compound fertilizer is obtained.

Embodiment 2

[0041] Example 2 Making 44% (12-17-15) chlorine-based slow-release compound fertilizer. Take each component by the following parts by weight:

[0042] Ammonium chloride 25

[0043] Monoammonium phosphate 38

[0044] Potassium chloride 25

[0045] Chicken manure + bean cake 8 (2 parts of chicken manure, 6 parts of bean cake)

[0046] Above-mentioned crushing to each solid component of 80-100 purpose, send into mixer and stir evenly, send the evenly stirred material into granulator, and spray slow-release binder (6 parts by weight) to carry out granulation (Φ= 2.0-4.75mm), send the granulated material to the dryer for drying, and then sieve, the unqualified large-grained material is crushed and then returned to the granulator for re-granulation with fine powder, and the qualified material is cooled, measured and packaged A finished product of 44% (12-17-15) chlorine-based slow-release compound fertilizer is obtained.

Embodiment 3

[0047] Example 3 Making 40% (16-8-16) chlorine-based slow-release compound fertilizer. Take each component by the following parts by weight:

[0048] Urea 15

[0049] Ammonium chloride 20

[0050] Monoammonium phosphate 17.5

[0051] Potassium chloride 27.5

[0052] Peat + distiller's grains 10 (5 parts of peat and 5 parts of distiller's grains)

[0053] Above-mentioned crushing to each solid component of 80-100 purpose, send into mixer and stir evenly, send the evenly stirred material into granulator, and spray slow-release adhesive (7 parts by weight) to carry out granulation (Φ= 2.0-4.75mm), send the granulated material to the dryer for drying, and then sieve, the unqualified large-grained material is crushed and then returned to the granulator for re-granulation with fine powder, and the qualified material is cooled, measured and packaged The finished product of 40% (16-8-16) chlorine-based slow-release compound fertilizer is prepared.

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Abstract

The invention discloses chloride-based slow-release complex fertilizer which comprises the following components in parts by weight: 15 to 20 parts of carbamide, 17 to 38 parts of monoammonium sulfate, 20 to 28 parts of potassium chloride, 6 to 8 parts of slow-release agglomerant and 8 to 12 parts of organic fertilizer. The organic fertilizer is added to the chloride-based slow-release compound fertilizer, and the organic fertilizer is rich in humic acid, which can improve the soil structure, is the catalytic agent and irritating agent for crop growth; the organic fertilizer can also activate nutrient, increase the contents of the available nitrogen, phosphorus and potassium in the soil, and improve the ratio of solid phase, liquid phase and gas phase in the soil; and the fertilizer use efficiency is improved, the agricultural non-point source pollution is reduced, the stress resistance of plants is enhanced, and the crop quality is improved.

Description

technical field [0001] The invention belongs to the field of fertilizer production, and relates to a chlorine-based slow-release compound fertilizer and a production process thereof. Background technique [0002] my country's chemical fertilizer consumption accounts for about 20-30% of the world's total chemical fertilizer consumption, ranking first in the world. The average seasonal utilization rate of chemical fertilizers in developed countries is 50-60%, while the average seasonal utilization rate of chemical fertilizers in my country is only 30-35% %. The loss and waste of a large number of nutrients not only bring huge economic losses to the society, but also cause serious environmental pollution. It is particularly important to improve fertilizer utilization efficiency, reduce fertilizer application, and save fertilization labor. Slow / controlled release fertilizer can basically synchronize with crop nutrient absorption through the regulation of nutrient release rate, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G3/04C05C9/00C05B7/00C05D1/02C05G3/80
CPCY02P60/21
Inventor 解玉洪陈剑秋陈德清李广涛
Owner KINGENTA ECOLOGICAL ENG GRP