Ecological nitrogen fertilizer and preparation method thereof

A nitrogen fertilizer and ecological technology, applied in nitrogen fertilizer, organic fertilizer, fertilization device and other directions, can solve the problem of low utilization rate of urea, improve the cultivation soil, simplify the granulation process, and improve the effect of absorbing nutrients

Inactive Publication Date: 2009-11-04
安徽省文胜生物工程股份有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0009] In order to solve the problem of low utilization rate of urea, the present invention adopts multi-elem

Method used

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  • Ecological nitrogen fertilizer and preparation method thereof

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Effect test

Embodiment Construction

[0048] Get 550kg of urea, 400kg of peat (water content 30%), 150kg of additives, 50kg of medium and micro fertilizers, 3kg of chitin, and 0.1kg of root-promoting agent.

[0049] (1) Activation treatment of peat and weathered coal

[0050] Add 15% activator to peat and weathered coal and let it stand for 3 days.

[0051] (2), medium and trace element chelation reaction

[0052] The inorganic salts of medium and trace elements are reacted with humic acid to form chelates of medium and trace elements.

[0053] (3), mixing, granulation

[0054] Add urea into the mixer, add chitin solution and trace element chelate in humic acid, wrap small granules of urea and send them to granulation tray for granulation and throwing garden treatment.

[0055] (4), drying, cooling

[0056] The ecological nitrogen fertilizer that has been pelleted is sent to the dryer by the belt conveyor, and the air inlet temperature is adjusted to 110 degrees, and the outlet air temperature is 45 degrees, f...

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Abstract

The invention relates to an ecological nitrogen fertilizer and a preparation method thereof, solving the problem of lower utilization rate of urea. In the invention, a multi-element integrating technology is adopted, chitin is used as a wrapping agent due to the film-forming property and excellent stickiness, organic matter containing humic acid is used as an urea adsorbent, medium trace elements are used as a balance agent of plant nutrient elements, and a root-promoting agent capable of promoting the root growth of plants is added to generate the multi-element multifunctional ecological nitrogen fertilizer by using the urea as a main raw material. The ecological nitrogen fertilizer is characterized in that the water-soluble chitin is used as the wrapping agent, and the medium trace fertilizer wrapped small granular urea and substances rich in the humic acid, such as weathered coal, grass carbon, and the like are mixed; and the raw materials has the following mixture ratio: 550 to 750 of urea, 200 to 400 of grass carbon (containing 30 percent of water), 80 to 200 of additive, 30 to 90 percent of medium trace fertilizer, 1 to 5 of chitin and 0.5 to 0.20 of root-promoting agent.

Description

Technical field: [0001] The invention belongs to the field of nitrogen fertilizer production, in particular to an ecological nitrogen fertilizer and a preparation method thereof. Background technique: [0002] Urea is the most important nitrogen fertilizer variety at home and abroad, and it is also the nitrogen fertilizer with the largest production and usage in the world today, accounting for more than 60% of the total nitrogen fertilizer. Urea is an amide nitrogen fertilizer with a nitrogen content of up to 46%. Urea is a non-acid root nitrogen fertilizer that does not compact and acidify the soil, and is suitable for many crops and soils. However, after being applied to the soil, under the action of urease, it is decomposed into ammonium nitrogen and is easily lost. The seasonal utilization rate of urea is 30%. If the application technique is improper, the utilization rate will be lower, and it is also the most likely to cause ecological environmental pollution. Therefor...

Claims

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Application Information

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IPC IPC(8): C05G3/08C05F11/02C05C9/00C05G3/90
Inventor 李文胜邵建华郑向阳
Owner 安徽省文胜生物工程股份有限公司
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