CN101898918A - Chelated controlled-release compound fertilizer and preparation method thereof - Google Patents
Chelated controlled-release compound fertilizer and preparation method thereof Download PDFInfo
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- CN101898918A CN101898918A CN 201010233704 CN201010233704A CN101898918A CN 101898918 A CN101898918 A CN 101898918A CN 201010233704 CN201010233704 CN 201010233704 CN 201010233704 A CN201010233704 A CN 201010233704A CN 101898918 A CN101898918 A CN 101898918A
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Abstract
The invention belongs to the technical field of agricultural fertilizers, in particular relates to a chelated controlled-release compound fertilizer and a preparation method thereof. The compound fertilizer is obtained by chelating the following raw materials: urea, monoammonium phosphate, potassium chloride, pumice, bentonite, attapulgite, liquid-state polymer resin, concentrated sulphuric acid, zinc sulfate, manganese sulfate, ferric sulfate, magnesium sulfate and copper sulfate. The chelated controlled-release compound fertilizer is added with parts of medium and trace elements to improve the utilization of mass elements to different degrees based on reasonable proportion of nitrogen, phosphor and magnesium, play an important role in relieving diseases of crops caused by insufficient trace elements; by adopting the fertilizer of the invention, the molecular structure of the fertilizer is stable, nutrition cannot be lost easily, the absorption utilization of the fertilizer is improved, the manufacture process is environment-friendly and simple and has small energy consumption, thus the fertilizer has wide application and popularization value.
Description
(1) technical field
The invention belongs to the agricultural fertilizer technical field, particularly a kind of chelated controlled-release compound fertilizer and preparation method thereof.
(2) background technology
China is a large agricultural country, also is chemical fertilizers production and use big country.A large amount of uses of chemical fertilizer have promoted the raising of China's grain yield, have greatly promoted China's Agricultural Development.But in the process of using chemical fertilizer, most people think that the composite fertilizer that contains N.P.K is exactly omnipotent fertilizer by mistake, have therefore ignored the use of other fertilizer.The consequence of doing like this is that soil compaction is serious, and the pH value exceeds standard, and crops quality descends, increased peasant's farming cost, needed other elements of plant growth lack in a large number, thereby make the output of crop not reach the fertilising expected volume, or occur disease and pest easily in the late growing stage process.Therefore, develop new chelated controlled-release compound fertilizer material, on the basis that guarantees nitrogen, phosphorus, potassium rational proportion, replenish the trace element that other crops need, be necessary very much thereby alleviate for want of micro-disease that causes of crop.
(3) summary of the invention
The object of the present invention is to provide a kind of chelated controlled-release compound fertilizer,, thereby alleviate for want of micro-disease that causes of crop with nitrogen, phosphorus, potassium and the middle trace element that provides crop to need.
The technical solution used in the present invention is as follows:
A kind of chelated controlled-release compound fertilizer, its raw material by following weight part (prescription 1) chelating is made:
Urea 200-250 part, monoammonium phosphate 300-350 part, Repone K 230-260 part, pumice sand 50-70 part, wilkinite 70-90 part, attapulgite hybrid 8-12 part, liquid polymerization resin 6-10 part, vitriol oil 0.1-1 part; Also contain middle trace element materials simultaneously, count: zinc sulfate 5-6 part with the form of its vitriol; Manganous sulfate 3.5-4.0 part; Ferric sulfate 1.3-1.6 part, sal epsom 1.8-2.0 part, copper sulfate 2.0-2.2 part.
Perhaps make by raw material (prescription 2) chelating of following weight part:
Urea 500-550 part, monoammonium phosphate 250-300 part, Repone K 120-150 part, wilkinite 10-30 part, attapulgite hybrid 8-12 part, liquid polymerization resin 25-30 part, vitriol oil 0.1-1 part; Also contain middle trace element materials simultaneously, count: zinc sulfate 6.0-6.5 part with the form of its vitriol; Manganous sulfate 2.5-3.0 part; Ferric sulfate 1.2-1.6 part; Sal epsom 1.6-2.0 part; Copper sulfate 6-10 part.
Perhaps make by raw material (prescription 3) chelating of following weight part:
Urea 630-680 part, Repone K 120-150 part, pumice sand 30-50 part, wilkinite 100-150 part, attapulgite hybrid 20-30 part, liquid polymerization resin 15-50 part, vitriol oil 0.1-1 part; Also contain middle trace element materials simultaneously, count: zinc sulfate 8-9.0 part with the form of its vitriol; Manganous sulfate 3.5-4.0 part; Ferric sulfate 1.2-1.6 part; Sal epsom 1.6-2.0 part; Copper sulfate 5-10 part.
Above-mentioned three prescriptions adopt conventional chelated controlled-release technology can obtain chelated controlled-release compound fertilizer by raw material is carried out reasonable proportioning, and the fertile constituent content of the chelated controlled-release that different prescriptions obtains is slightly variant.
The nitrogen that obtains in the prescription 1: phosphorus: the potassium mass ratio about 1: 1: 1, zinc sulfate 0.52% (mass content, down with); Manganous sulfate 0.38%; Ferric sulfate 0.15%; Sal epsom 0.18%; Copper sulfate 0.2%.
The nitrogen that obtains in the prescription 2: phosphorus: the potassium mass ratio about 28: 12: 8, zinc sulfate 0.62%; Manganous sulfate 0.28%; Ferric sulfate 0.15%; Sal epsom 0.18%; Copper sulfate 0.8%.
The nitrogen that obtains in the prescription 3: phosphorus: the potassium mass ratio is about 30: 0: 8, zinc sulfate 0.82%; Manganous sulfate 0.38%; Ferric sulfate 0.15%; Sal epsom 0.18%; Copper sulfate 0.8%.
Above moisture≤2.0 in the composite fertilizer that obtains of prescription; Water-soluble phosphorus 〉=70%, finished product granularity (1-4.75) 〉=90%; PH value 5-6.
After more than the prescription drying-granulating obtains finished product, can also carry out disk production technology; Also can add anti-hard caking agent in addition and play moistureproof and anti-caking effect.
The present invention fills a prescription the necessary various trace elements of crop growth is carried out chelation treatment, and various trace elements and nitrogen phosphorus potassium are absorbed by crop together during use, has overcome present crop trace element and the problem of disease takes place easily for want of.
The present invention also provides a kind of preparation method of described chelated controlled-release compound fertilizer preferably, get each raw material according to corresponding proportion, other raw material thorough mixing that will be except zinc sulfate, liquid polymerization resin, afterwards the mixture of liquid polymerization resin and zinc sulfate is coated the surface to other raw mixs, final drying, granulation are to granularity 1-4.75mm 〉=90%.
Wherein, can adopt spraying equipment to coat, the discharging rate-controlling of spraying equipment discharge port is 0.5-5Kg/min.Described spraying equipment is a conventional equipment, repeats no more herein.
Liberated heat when adopting each raw material of preorder to mix when further, dry.This heat is mainly derived from the heat of ureaclastic liquefied ammonia and strong sulfuric acid response generation, and the vitriol oil described in the present invention is meant 98% the vitriol oil.
Preferred manufacturing procedure of the present invention has adopted polymer resin as coating material, and polymer resin is recent emerging a kind of macromolecular material, utilizes it that fertilizer surface is wrapped up, and can make the fertilizer top layer form densification, porous, micropore, stable dressing.After this fertilizer is broadcast and is executed, because the effect of coating film, the temperature that suits in the field, under the humidity, nutritive ingredient in the fertilizer mainly is to be difficult for fixed nitrogenous fertilizer can slowly release, time of releasing is generally from 30 days to 260 days, the self-sow curves of basic and crop, reaching nutrient discharges consistent with the rule of fertilizer requirement for crop growth, the release of nutrient and the absorption of crop have reached synchronous, thereby can improve the utilization ratio of chemical fertilizer, for example the general fertilizers utilization rate of nitrogen fertilizer is about 55%, and the utilization rate of nitrogen fertilizer of chelated controlled-release fertilizer of the present invention can reach more than 70%.Further, this technology is separated zinc sulfate and other raw materials, has avoided producing the problem of antagonism as reacting between monoammonium phosphate and the zinc sulfate between the raw material, has also strengthened fertilizer utilization ratio from other one side.The 3rd, the heat to reaction in preparation process makes full use of, and compares whitewashing, high tower, a process energy consumption will lack a lot, and the output of refuse is few, energy-conserving and environment-protective.
Can take deep placement when chelated controlled-release compound fertilizer of the present invention uses, spread manuer in holes, row replacement, every mu of consumption is at the 30-50 kilogram, generally once make base fertilizer after the later stage do not need to topdress again, the saving of labor, save time, laborsaving again.
The present invention compared with prior art mainly contains following advantage:
Chelated controlled-release compound fertilizer of the present invention is on the basis of rationally carrying out nitrogen, phosphorus, potassium proportioning, added trace element in the part, improved the utilization ratio of macroelement to some extent, and, played an important role for alleviating for want of micro-disease that causes of crop; Utilize the fertilizer of this explained hereafter, the chemical fertilizer molecular structure stabilized, nutrient is difficult for running off, and has improved the absorption rate of fertilizer, and the production technique environmental protection is simple, less energy consumption, has a wide range of application value.
(4) embodiment:
Below with specific embodiment technical scheme of the present invention is described, but protection scope of the present invention is not limited thereto:
Embodiment 1
Chelated controlled-release compound fertilizer, its raw material chelating by following weight part is made:
Urea 243.5, monoammonium phosphate 341, Repone K 250, pumice sand 60, wilkinite 80, attapulgite hybrid 10,98% the vitriol oil 0.5, liquid polymerization resin 8, zinc sulfate 5.2, manganous sulfate 3.8, ferric sulfate 1.5, sal epsom 1.8, copper sulfate 2.
Get each raw material according to corresponding proportion, other raw material thorough mixing that will be except zinc sulfate, liquid polymerization resin, mixture with liquid polymerization resin and zinc sulfate utilizes the surface of spraying machine coating to other raw mixs afterwards, spray to be operated within 10 minutes and finish, the heat that utilizes the front reaction to produce at last carries out drying, granulation to granularity 1-4.75mm 〉=90%.
Nitrogen in the chelated controlled-release compound fertilizer that obtains: phosphorus: potassium=15: 15: 15, zinc sulfate 0.52%; Manganous sulfate 0.38%; Ferric sulfate 0.15%; Sal epsom 0.18%; Copper sulfate 0.2%.Water-soluble phosphorus 〉=70%, moisture≤2.0, pH value 6.
Embodiment 2
Chelated controlled-release compound fertilizer, its raw material chelating by following weight part is made:
Urea 541, monoammonium phosphate 273, Repone K 133, wilkinite 20, attapulgite hybrid 9.4, liquid polymerization resin 28, the vitriol oil 0.8; Zinc sulfate 6.2; Manganous sulfate 2.8; Ferric sulfate 1.5; Sal epsom 1.8; Copper sulfate 8.
Get each raw material according to corresponding proportion, other raw material thorough mixing that will be except zinc sulfate, liquid polymerization resin, mixture with liquid polymerization resin and zinc sulfate utilizes the surface of spraying machine coating to other raw mixs afterwards, spray to be operated within 10 minutes and finish, the heat that utilizes the front reaction to produce at last carries out drying, granulation to granularity 1-4.75mm 〉=90%.
Nitrogen in the chelated controlled-release compound fertilizer that obtains: phosphorus: potassium=28: 12: 8, zinc sulfate 0.62%; Manganous sulfate 0.28%; Ferric sulfate 0.15%; Sal epsom 0.18%; Copper sulfate 0.8%; Water-soluble phosphorus 〉=70%, moisture≤2.0, pH value is 6.
Embodiment 3
Chelated controlled-release compound fertilizer, its raw material chelating by following weight part is made:
Urea 649, Repone K 133, pumice sand 43, wilkinite 120, attapulgite hybrid 28, liquid polymerization resin 48, the vitriol oil 1; Zinc sulfate 8.2; Manganous sulfate 3.8; Ferric sulfate 1.5; Sal epsom 1.8; Copper sulfate 8.
Get each raw material according to corresponding proportion, other raw material thorough mixing that will be except zinc sulfate, liquid polymerization resin, mixture with liquid polymerization resin and zinc sulfate utilizes the surface of spraying machine coating to other raw mixs afterwards, spray to be operated within 10 minutes and finish, the heat that utilizes the front reaction to produce at last carries out drying, granulation to granularity 1-4.75mm 〉=90%.
Nitrogen in the chelated controlled-release compound fertilizer that obtains: phosphorus: potassium=30: 0: 8, zinc sulfate 0.82%; Manganous sulfate 0.38%; Ferric sulfate 0.15%; Sal epsom 0.18%; Copper sulfate 0.8%.Water-soluble P 〉=70%, moisture≤2.0, pH value is 6.
Application effect:
According to food crop 30-40 kilogram/mu, vegetable melon and fruit 60-70 kilogram/mu is broadcast and is executed, and makes base fertilizer without exception, row replacement, all can spread manuer in holes, and earths up, pours water after executing.
Plantation autumn corn imposes prescription 3 chelated controlled-release compound fertilizers (40 kilograms/mu) during corn 4-6 sheet leaf, disposable imposing, and the later stage does not refertilize.Test-results shows; Growing way is very vigorous during whole corn, fertile phenomenon do not occur taking off, does not more occur because of the micro-physiological disturbance that is caused in the corn shortage, and the corn per mu yield reaches 702 kilograms, volume increase 13-21.6%.
The plantation booth vegetable is broadcast and is executed prescription 1 chelated controlled-release compound fertilizer, romaine lettuce volume increase 23.2-27.6%, tomato production promoting 18-23%, cucumber production promoting 31-10.3%, peanut yield increasing 13-17.6%; Sickness rate reduces 13%.
Breed the base at 850,000 mu of wheat breedings altogether, used the present invention's 2 chelated controlled-release fertilizer of filling a prescription in continuous 3 years, disposable 40 kilograms of the every mu of fertilizer application amounts of base fertilizer of doing, the later stage does not do and topdresses, and in continuous 3 years, fertile phenomenon does not appear taking off in wheat.The wheat state of an illness is also considerably less, and every mu of wheat mean yield reaches 713 kilograms, volume increase 16-21%.
Table 1 is the controlled-release effect of embodiment 1-3 chelated controlled-release compound fertilizer.
Claims (6)
1. a chelated controlled-release compound fertilizer is characterized in that, its raw material chelating by following weight part is made:
Urea 200-250 part, monoammonium phosphate 300-350 part, Repone K 230-260 part, pumice sand 50-70 part, wilkinite 70-90 part, attapulgite hybrid 8-12 part, liquid polymerization resin 6-10 part, vitriol oil 0.1-1 part; Also contain middle trace element materials simultaneously, count: zinc sulfate 5-6 part with the form of its vitriol; Manganous sulfate 3.5-4.0 part; Ferric sulfate 1.3-1.6 part, sal epsom 1.8-2.0 part, copper sulfate 2.0-2.2 part.
2. a chelated controlled-release compound fertilizer is characterized in that, its raw material chelating by following weight part is made:
Urea 500-550 part, monoammonium phosphate 250-300 part, Repone K 120-150 part, wilkinite 10-30 part, attapulgite hybrid 8-12 part, liquid polymerization resin 25-30 part, vitriol oil 0.1-1 part; Also contain middle trace element materials simultaneously, count: zinc sulfate 6.0-6.5 part with the form of its vitriol; Manganous sulfate 2.5-3.0 part; Ferric sulfate 1.2-1.6 part; Sal epsom 1.6-2.0 part; Copper sulfate 6-10 part.
3. a chelated controlled-release compound fertilizer is characterized in that, its raw material chelating by following weight part is made:
Urea 630-680 part, Repone K 120-150 part, pumice sand 30-50 part, wilkinite 100-150 part, attapulgite hybrid 20-30 part, liquid polymerization resin 15-50 part, vitriol oil 0.1-1 part; Also contain middle trace element materials simultaneously, count: zinc sulfate 8-9.0 part with the form of its vitriol; Manganous sulfate 3.5-4.0 part; Ferric sulfate 1.2-1.6 part; Sal epsom 1.6-2.0 part; Copper sulfate 5-10 part.
4. the preparation method of the described chelated controlled-release compound fertilizer of one of claim 1-3, it is characterized in that, get each raw material according to corresponding proportion, other raw material thorough mixing that will be except zinc sulfate, liquid polymerization resin, afterwards the mixture of liquid polymerization resin and zinc sulfate is coated the surface to other raw mixs, final drying, granulation are to granularity 1-4.75mm 〉=90%.
5. the preparation method of chelated controlled-release compound fertilizer as claimed in claim 4 is characterized in that, adopts spraying equipment to coat, and the discharging speed of spraying equipment discharge port is 0.5-5Kg/min.
6. as the preparation method of claim 4 or 5 described chelated controlled-release compound fertilizers, it is characterized in that liberated heat when adopting each raw material of preorder to mix when dry.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010233704 CN101898918B (en) | 2010-07-22 | 2010-07-22 | Chelated controlled-release compound fertilizer and preparation method thereof |
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| CN 201010233704 CN101898918B (en) | 2010-07-22 | 2010-07-22 | Chelated controlled-release compound fertilizer and preparation method thereof |
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| CN101898918B CN101898918B (en) | 2013-03-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531794A (en) * | 2012-02-28 | 2012-07-04 | 范永强 | Multifunctional soil improved sustained-release environment-friendly fertilizer and preparation method thereof |
| CN102557831A (en) * | 2012-01-12 | 2012-07-11 | 刘东林 | Chelated controlled-release organic compound fertilizer and preparation method thereof |
| CN108976031A (en) * | 2018-08-31 | 2018-12-11 | 怀化远东化肥有限公司 | A kind of chelate compound fertilizer and preparation method thereof of the long prevention and treatment sclerotiniose of fertilizer efficiency |
| CN109400375A (en) * | 2018-12-06 | 2019-03-01 | 佛山科学技术学院 | A kind of rubbish from cooking charcoal for reducing resistant gene and being transmitted in vegetables |
Citations (3)
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| WO1995003260A1 (en) * | 1993-07-21 | 1995-02-02 | Asahi Kasei Kogyo Kabushiki Kaisha | Multilayer-coated granular fertilizer |
| CN1463957A (en) * | 2002-06-12 | 2003-12-31 | 邵建华 | Granulation process of composite fertilizer |
| CN1491925A (en) * | 2003-03-28 | 2004-04-28 | 中国科学院沈阳应用生态研究所 | Slow-releasing compound fertilizer with framework structure |
-
2010
- 2010-07-22 CN CN 201010233704 patent/CN101898918B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995003260A1 (en) * | 1993-07-21 | 1995-02-02 | Asahi Kasei Kogyo Kabushiki Kaisha | Multilayer-coated granular fertilizer |
| CN1463957A (en) * | 2002-06-12 | 2003-12-31 | 邵建华 | Granulation process of composite fertilizer |
| CN1491925A (en) * | 2003-03-28 | 2004-04-28 | 中国科学院沈阳应用生态研究所 | Slow-releasing compound fertilizer with framework structure |
Non-Patent Citations (1)
| Title |
|---|
| 《广州化工》 20001225 丁恩明等 复合肥的生产配方设计与工艺 参见第89页（3） 1-6 第28卷, 第4期 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557831A (en) * | 2012-01-12 | 2012-07-11 | 刘东林 | Chelated controlled-release organic compound fertilizer and preparation method thereof |
| CN102531794A (en) * | 2012-02-28 | 2012-07-04 | 范永强 | Multifunctional soil improved sustained-release environment-friendly fertilizer and preparation method thereof |
| CN102531794B (en) * | 2012-02-28 | 2013-11-06 | 范永强 | Multifunctional soil improved sustained-release environment-friendly fertilizer and preparation method thereof |
| CN108976031A (en) * | 2018-08-31 | 2018-12-11 | 怀化远东化肥有限公司 | A kind of chelate compound fertilizer and preparation method thereof of the long prevention and treatment sclerotiniose of fertilizer efficiency |
| CN109400375A (en) * | 2018-12-06 | 2019-03-01 | 佛山科学技术学院 | A kind of rubbish from cooking charcoal for reducing resistant gene and being transmitted in vegetables |
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| CN101898918B (en) | 2013-03-27 |
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