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Novel efficient granular boron fertilizer and preparation method

A granular and new technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of inability to quickly replenish boron in soil, low utilization rate of boron elements, easy to volatilize with water vapor, etc. Boron condition, good fluidity effect

Active Publication Date: 2014-12-17
大连亚农农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main boron fertilizer products used in China mainly include: (1) Borax decahydrate, with a pure boron content of about 10.9%, is a colorless transparent crystal or powder, and is the most commonly used boron supplement product in my country. The method of use is soil-based application , there is also spraying, the disadvantage is that the aqueous solution is alkaline, it cannot be mixed with most pesticides, the utilization rate of boron is low, and the effect of boron supplementation is limited
(2) Boric acid, containing boron in acid state, is expensive, not easy to be absorbed by plants, easy to volatilize with water vapor, easy to lose, easy to cause burns and boron poisoning
(3) Boron-magnesium mixed fertilizer has low boron content and poor solubility, so it cannot quickly replenish the boron needed by soil and crops
(4) Granular boron fertilizer, by using the mixture of sulfuric acid and borax as a binder, granulating the powdery borax and boric acid powder mixture, the granular boron fertilizer obtained, see patent number CN101585720A, has low activity and is easy to Loss, single fertilizer efficiency, low utilization rate, high cost

Method used

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  • Novel efficient granular boron fertilizer and preparation method
  • Novel efficient granular boron fertilizer and preparation method
  • Novel efficient granular boron fertilizer and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 500 kg of sodium borate mineral powder crushed to 60 mesh-120 mesh, 200 kg of borax, 200 kg of boric acid, 100 kg of methylene urea (N40%), mix them evenly as a powdery mixture, and use 5% sulfuric acid solution As the liquid phase, in the disc granulator (50 rev / min), gradually add the mixed powdery mixture into the granulation pan, first infiltrate with a small amount of acidic medium solution, and then add the powdery mixture, While spraying acidic medium solution and water vapor, keep the granulation temperature at 85 degrees, and granulate until the particles reach the required particle size. Drying, cooling, and sieving to obtain the finished product: B 2 o 3 The mass content accounts for 36.9% of the total content, and the N mass content accounts for 4% of the total content, 2-4mm, and the strength is 30N.

Embodiment 2

[0030] Weigh 300 kg of sodium borate mineral powder crushed to 60 mesh-120 mesh, 400 kg of borax, 200 kg of boric acid, 100 kg of methylene urea (N40%), mix them evenly as a powdery mixture, and use 10% phosphoric acid solution As the liquid phase, in the disc granulator (55 rev / min), gradually add the mixed powdery mixture into the granulation pan, first infiltrate with a small amount of acidic medium solution, and then add the powdery mixture, While spraying acidic medium solution and water vapor, keep the granulation temperature at 75 degrees, and granulate until the particles reach the required particle size. Carry out drying, cooling, and sieving to obtain the finished product. Product specification: B 2 o 3 The mass content accounts for 40.1% of the total content, and the N mass content accounts for 4% of the total content, 2-4mm, and the strength is 28N.

[0031] Examples of citrus applications:

[0032] In 2013, a citrus orchard of a farmer in Chongqing was selecte...

Embodiment 3

[0036] Weigh 600 kg of sodium borate mineral powder crushed to less than 0.5 mm, 250 kg of borax, 100 kg of boric acid, and 50 kg of methylene urea (N40%), mix them evenly as a powdery mixture, and use 10% citric acid solution As the liquid phase, in the disc granulator (60 rev / min), gradually add the mixed powdery mixture into the granulation pan, first infiltrate with a small amount of acidic medium solution, and then add the powdery mixture, While spraying acidic medium solution and water vapor, keep the granulation temperature at 65 degrees, and granulate until the granules reach the required particle size. Carry out drying, cooling, and sieving to obtain the finished product. Product specification: B 2 o 3 The mass content accounts for 36.85% of the total content, and the mass content accounts for 2% of the total content of N, 2-4mm, and the strength is 35N.

[0037] Application example of rapeseed

[0038] In 2012, a rapeseed field of a farmer in Huaining County, Anh...

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Abstract

The invention relates to granular boron fertilizer. A novel efficient granular boron fertilizer is prepared by mixing the following raw materials in parts by weight: 30 to 60 parts of natroborocalcite mineral powder, 0 to 40 parts of borax, 0 to 20 parts of boric acid, and 5 to 10 parts of methylene ureas which are treated as powdered mixed materials, and then polymerizing and granulating in the presence of acid medium under a temperature of 60 to 90 DEG C, wherein the acid medium is prepared from one or a plurality of concentrated sulfuric acid, phosphoric acid and citric acid. According to the novel efficient granular boron fertilizer and the preparation method, natroborocalcite mineral powder, borax, boric acid and methylene ureas are polymerized and granulated based on corresponding ratio in the presence of the acid medium and under a certain temperature, thus the prepared granules are uniform and smooth, and high in intensity and high in mobility flowability; quick-acting, intermediate-acting and long-acting nutrients in the granules are balanced to release, thus the demand of crops on boron nutrient in the whole growth period is fully met; the fertilizer efficiency is high, and the economic benefit is obvious.

Description

technical field [0001] The invention relates to a novel boron fertilizer, which belongs to the field of fertilizer processing, and also relates to a manufacturing method of the boron fertilizer. Background technique [0002] Globally, most boron resources are distributed in the Western Hemisphere, the United States, Turkey, Russia, Chile, Peru, etc. Relatively concentrated, my country's boron ore has three shortcomings: small amount, low grade, and high impurity content. my country's boron resources are seriously insufficient, and a large area of ​​arable soil is deficient in boron, while field crops require a large amount of boron, such as rape, cotton, sugar beet, and fruits. At present, the main boron fertilizer products used in China mainly include: (1) Borax decahydrate, with a pure boron content of about 10.9%, is a colorless transparent crystal or powder, and is the most commonly used boron supplement product in my country. The method of use is soil-based application...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 张浩
Owner 大连亚农农业科技有限公司
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