CN101885646B - Biological slow-released urea and preparation method thereof - Google Patents
Biological slow-released urea and preparation method thereof Download PDFInfo
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- CN101885646B CN101885646B CN2009101367356A CN200910136735A CN101885646B CN 101885646 B CN101885646 B CN 101885646B CN 2009101367356 A CN2009101367356 A CN 2009101367356A CN 200910136735 A CN200910136735 A CN 200910136735A CN 101885646 B CN101885646 B CN 101885646B
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- humic acid
- particle
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- urea
- slow
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000004202 carbamide Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004021 humic acid Substances 0.000 claims abstract description 35
- 241000894006 Bacteria Species 0.000 claims abstract description 24
- 239000000843 powder Substances 0.000 claims abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims abstract description 5
- 230000001070 adhesive effect Effects 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 35
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 11
- 238000012216 screening Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 239000000440 bentonite Substances 0.000 claims description 6
- 229910000278 bentonite Inorganic materials 0.000 claims description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 4
- 229920002907 Guar gum Polymers 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 4
- 239000000665 guar gum Substances 0.000 claims description 4
- 229960002154 guar gum Drugs 0.000 claims description 4
- 235000010417 guar gum Nutrition 0.000 claims description 4
- 230000003578 releasing effect Effects 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 235000013311 vegetables Nutrition 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 239000003864 humus Substances 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 239000000618 nitrogen fertilizer Substances 0.000 abstract description 12
- 235000015097 nutrients Nutrition 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 1
- 239000003337 fertilizer Substances 0.000 description 8
- 230000012010 growth Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 244000241257 Cucumis melo Species 0.000 description 2
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 2
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 208000031968 Cadaver Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 240000000359 Triticum dicoccon Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000012773 agricultural material Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004178 biological nitrogen fixation Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000000509 infertility Diseases 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 231100000535 infertility Toxicity 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Landscapes
- Fertilizers (AREA)
Abstract
The invention relates to a wrapped type biological slow-released urea and a preparation method thereof. Biological bacteria, large granular urea, humic acid and betonite are used as raw materials. The preparation method comprises the following steps: in proportion, the biological bacteria is absorbed and melted in the smashed humic acid; materials preparation is successively carried out according to the proportion of large granular urea to humic acid to biological bacteria to betonite of 60-70: 25-20:10-5:5-5 in parts by weight; and an adhesive is used to cover the humic acid powders containing the biological bacteria on the surface of the large granular urea on a granulating disc to prepare the biological slow-released urea. The biological slow-released urea contains 30-35% of nitrogen element, 30-40% of humic acid, 5-8% of betonite and 1% of biological bacteria. The nitrogen fertilizer has high content of humic acid and more comprehensive and richer nutrients; and due to the adhesive coated slow-released function of the biological bacteria, the release of the nitrogen fertilizer can be effectively and slowly controlled, thus the applying amount of the nitrogen fertilizer can be reduced and the plant cost is lowered. The application of the biological slow-released urea of the invention can not only improve the yield of crops but also promote the quality of crops.
Description
Technical field
The present invention relates to a kind of biological slow-released urea and preparation method thereof.
Background technology
At present, in the plantation of farm crop, often excessive applied nitrogen makes farm crop excessive growth in early stage, later stage take off fertilizer, has also caused the decline of crops quality simultaneously, and not fragrant such as the rice wheat, melon and fruit is sweetless and outward appearance lopsided, and this mainly is the unbalance result of corps nutrient.In order to solve " high yield not high-quality, product price is low " problem, effective means is to use the biological organic nitrogenous fertilizer with slow release that contains humic acid, but the similar fertilizer of releasing on the agricultural materials market at present, the content that lacks essential microorganism and humic acid is all low, generally about 25%, the humic acid nitrogenous fertilizer of these sterile low levelss can not satisfy farm crop to the demand of high-content humic acid nitrogenous fertilizer.Simultaneously, nitrogenous fertilizer belongs to quick-acting fertilizer, and crop applying generally is excessive growth in early stage, later stage to take off fertilizer.The technique that biological slow-released urea utilizes physical property tackiness agent parcel form to combine with the biological nitrogen fixation bacterium makes the granular urea surface have one deck to contain the humic acid film of bacterium, this layer film not only plays the control slow release action of nitrogenous fertilizer but also humic acid is mated in nitrogenous fertilizer, also be applied in biological bacteria and humic acid in the soil in the process that granular urea is slowly discharged in soil, and the release rate of this kind product and crop regulation of fertilizer requirement match, nutrient supply is balanced sufficient, release period can reach 90 days, this effect can make crop not excessive growth in early stage, later stage is not taken off fertilizer, the time of infertility is effective, and utilization rate of nitrogen fertilizer can improve more than 50%.
Summary of the invention
The first purpose of the present invention provides a kind of high biological slow-released urea of content of humic acid that wraps up form.
The second purpose of the present invention provides this biological slow-released urea preparation method.
For the first purpose that realizes inventing; the biological slow-released urea that provides; comprise with silica gel, granular urea, humic acid, biological bacteria and wilkinite; it is granular urea according to ratio of weight and number: the ratio of humic acid: biological bacteria: wilkinite-60-70: 25-20: 10-5: 5-5; after getting the raw materials ready successively, the humic acid powder packets that will contain biological bacteria with tackiness agent on granulating disc makes on the granular urea surface.This biological slow-released urea contains the nitrogen element of 30%-35, the humic acid of 30--40, the wilkinite of 5-8% and 1% biological bacteria, and the content of this kind fertilizer humic acid is high, and slow release effect is arranged.
Be to increase the slow release effect of biological slow-released urea particle, parcel binder wt part also is provided is 1 in the proportioning raw materials of the biological slow-released urea that provides, through carboxymethyl cellulose, guar gum, xylogen, the vegetables oil of hydrolysis.
For the second purpose that realizes inventing, the preparation method of the biological slow-released urea that provides comprises the steps: successively
A, pulverizing: respectively humic acid, wilkinite granularity are crushed to 100 orders-150 order;
B, absorption: according to weight ratio with 1% biological bacteria be ground into 100 purpose humic acid and fully stir, biological bacteria is all adsorbed and melts in the humic acid powder and (contain 0.2 hundred million of biological bacteria in the finished product in every gram solids).
C, mixed adhesive: be silica gel according to ratio of weight and number: carboxymethyl cellulose: guar gum: evenly mixes with vegetables oil after the xylogen hydrolysis, form tackiness agent;
D, enwrapped granule: first granular urea and bentonite in powder are sent into the one-level granulating disc with fluid jetting head, tackiness agent evenly is sprayed on granular urea and the bentonite in powder, forming granularity is the particle of 2.0mm-3.0mm, these particles are poured the humic acid powder into when the second granulating disc, forming granularity is the particle of 2.5mm---3.5mm, the particle skin has formed the humus acid integument like this, has formed the particle with slowly-releasing effect;
E, first drying: be 50 ℃-70 ℃ cylinder low temp dryer oven dry 2 minutes-3 minutes with the particle temperature, making the water content of particle is 8%-10%, makes work in-process;
F, screening: work in-process are sieved for twice, the screen-aperture that sieves for the first time is 2mm, filter out granularity and deliver to the D step less than the small-particle of 2mm, the screen-aperture that sieves for the second time is 3.5mm, filter out granularity and deliver to after treatment the D step greater than the macrobead of 3.5mm, remaining particle is the screening particle;
W, secondary drying: will screening particle, to send into temperature be 40 ℃-50 ℃ hot blast conveying belt, carries oven dry 20 seconds-50 seconds, makes water content and be not higher than 5% biological slow-released urea particle.
Biological slow-released urea provided by the present invention not only contains the content of the needed nitrogen element of plant growth, biological bacteria but also humic acid up to 30%-40%, because having slow-release function, solved nitrogenous fertilizer excessive growth in early stage, later stage and taken off fertile deficiency.Because of increasing substantially of utilization rate of nitrogen fertilizer, can effectively reduce rate of fertilizer application, reduced planting cost.Use biological slow-released urea provided by the present invention, not only can improve the output of farm crop, and can promote its quality, such as wheat increase yield 10%-15%, increasing production of rice 10%-25%, peanut yield increasing 10%-35%, corn yield increasing 15%-19%, Yield Increase In Cotton 10%-15%, melon and fruit is fragrant and sweet and stature is even.Adopt oven drying at low temperature among the preparation method twice, compared with traditional first drying, improved production efficiency.
Embodiment
A, pulverizing: respectively humic acid, wilkinite granularity are crushed to 100 orders-150 order; Humic acid derives from Huo Lin river, Inner Mongol, the pure content of humic acid in its composition: 〉=60%;
B. absorption: according to weight ratio with 1% biological bacteria be ground into 100 purpose humic acid and fully stir, be that biological bacteria is all adsorbed and incorporated in the humic acid powder.This biological bacteria is fixed nitrogen type genus bacillus.
C, mixed adhesive: be silica gel according to ratio of weight and number: carboxymethyl cellulose: guar gum: each equal portions elder generation water of xylogen dissolves it, and rear vegetables oil with parts by weight 10% is evenly concocted, the formation tackiness agent;
D, enwrapped granule: first granular urea and bentonite in powder are sent into the one-level granulating disc with large oral fluid body shower nozzle, tackiness agent evenly is sprayed on granular urea and the bentonite in powder, forming granularity is the particle of 2.0mm-3.0mm, these particles spray into the humic acid powder when the second granulating disc, forming granularity is the particle of 2.5mm---3.5mm, the particle skin has formed the humus acid integument like this, has formed the particle with slowly-releasing effect;
E, first drying: be 50 ℃-70 ℃ cylinder low temp dryer oven dry 2 minutes-3 minutes with the particle temperature, making the water content of particle is 8%-10%, makes work in-process;
F, screening: work in-process are sieved for twice, the screen-aperture that sieves for the first time is 2mm, filter out granularity and deliver to the D step less than the small-particle of 2mm, the screen-aperture that sieves for the second time is 3.5mm, filter out granularity and deliver to after treatment the D step greater than the macrobead of 3.5mm, remaining particle is the screening particle;
W, secondary drying: will screening particle, to send into temperature be 40 ℃-50 ℃ hot blast conveying belt, carries oven dry 20 seconds-50 seconds, makes water content and be not higher than 5% biological slow-released urea.
Claims (1)
1. the preparation method of a biological slow-released urea is characterized in that comprising the steps: successively
A, pulverizing: respectively humic acid, wilkinite granularity are crushed to 100 orders-150 order;
B, absorption: according to weight ratio 1% biological bacteria and the humic acid that is ground into more than 100 orders are fully stirred, make biological bacteria all adsorb and melt in the humic acid powder, described biological bacteria is fixed nitrogen type genus bacillus;
C, mixed adhesive: be silica gel according to ratio of weight and number: carboxymethyl cellulose: guar gum: each equal portions elder generation water of xylogen dissolves it, evenly concoct the formation tackiness agent with vegetables oil 10% afterwards;
D, enwrapped granule: first granular urea and bentonite in powder are sent into the one-level granulating disc with fluid jetting head, tackiness agent evenly is sprayed on granular urea and the bentonite in powder, forming granularity is the particle of 2.0mm-3.0mm, these particles spray into the humic acid powder when the second granulating disc, forming granularity is the particle of 2.5mm-3.5mm, the particle skin has formed the humus acid integument like this, has formed the particle with slowly-releasing effect;
Wherein, described granular urea: humic acid: biological bacteria: bentonitic ratio of weight and number is 60-70: 25-20: 10-5: 5-5;
E, first drying: be 50 ℃-70 ℃ cylinder low temp dryer oven dry 2 minutes-3 minutes with the particle temperature, making the water content of particle is 8%-10%, makes work in-process;
F, screening: work in-process are sieved for twice, the screen-aperture that sieves for the first time is 2mm, filter out granularity and deliver to the D step less than the small-particle of 2mm, the screen-aperture that sieves for the second time is 3.5mm, filter out granularity and deliver to after treatment the D step greater than the macrobead of 3.5mm, remaining particle is the screening particle;
W, secondary drying: will screening particle, to send into temperature be 40 ℃-50 ℃ hot blast conveying belt, carries oven dry 20 seconds-50 seconds, makes water content and be not higher than 5% biological slow-released urea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101367356A CN101885646B (en) | 2009-05-14 | 2009-05-14 | Biological slow-released urea and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101367356A CN101885646B (en) | 2009-05-14 | 2009-05-14 | Biological slow-released urea and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN101885646A CN101885646A (en) | 2010-11-17 |
| CN101885646B true CN101885646B (en) | 2013-03-06 |
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| CN2009101367356A Expired - Fee Related CN101885646B (en) | 2009-05-14 | 2009-05-14 | Biological slow-released urea and preparation method thereof |
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| CN102584412A (en) * | 2011-01-10 | 2012-07-18 | 河南农飞生物科技有限公司 | Biological organic-inorganic mixed fertilizer |
| CN102653484B (en) * | 2011-03-01 | 2014-02-26 | 张希纯 | Controlled release potash fertilizer and preparation method thereof |
| CN102653483B (en) * | 2011-03-01 | 2014-02-26 | 张希纯 | Controlled-release nitrogen potash fertilizer and preparation method thereof |
| CN102153425A (en) * | 2011-05-17 | 2011-08-17 | 邢志胜 | Slow-releasing organic microbial urea and preparation method thereof |
| BRPI1106423B1 (en) * | 2011-10-14 | 2018-03-06 | Ecoplus Consultoria E Assessoria Tecnológica Ltda Me | Encapsulated nitrogen fertilizer composition with fire extinguishing and blocking action, manufacturing process and application process |
| CN103204726A (en) * | 2012-01-11 | 2013-07-17 | 党剑 | Nitrogen fixation urea |
| CN102731215B (en) * | 2012-07-12 | 2013-09-25 | 湖北富邦科技股份有限公司 | Method for using granulating agent for preparing large-particle potassium sulfate or ammonium chloride |
| CN103073350A (en) * | 2013-01-10 | 2013-05-01 | 山西昌鑫生物农业科技有限公司 | Slow-release humic acid and urea compound fertilizer and preparation method thereof |
| CN104058898B (en) * | 2014-06-18 | 2016-05-11 | 燕山大学 | A kind of humic acid coated urea and production method |
| CN104193506B (en) * | 2014-08-11 | 2016-06-08 | 武汉中农国际贸易有限公司 | Production of compound fertilizer system and production technique |
| CN106008118A (en) * | 2016-05-17 | 2016-10-12 | 深圳市芭田生态工程股份有限公司 | Multifunctional sustained-release compound fertilizer for planting of fruit trees and preparation method of sustained-release compound fertilizer |
| CN107652134A (en) * | 2017-10-30 | 2018-02-02 | 宁夏天瑞产业集团现代农业有限公司 | A kind of sustained-controll-release fertiliser coating agent and preparation method thereof |
| CN111662129B (en) * | 2020-06-30 | 2022-04-12 | 成都市植物园 | Special fertilizer for flowers and preparation method thereof |
| CN114507104B (en) * | 2022-03-15 | 2024-05-10 | 黑龙江省依唯科生物技术研发有限公司 | Organic fertilizer and production process thereof |
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- 2009-05-14 CN CN2009101367356A patent/CN101885646B/en not_active Expired - Fee Related
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| CN1283600A (en) * | 1999-08-10 | 2001-02-14 | 王为民 | Coated urea humate and its preparing process |
| WO2004002921A1 (en) * | 2002-07-01 | 2004-01-08 | Ecotech (Aust) Pty Ltd | Fertilisation of soil |
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| CN101885646A (en) | 2010-11-17 |
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