CN103360184B - A kind of anti-burning type corn-specific controlled-release fertilizer and preparation method thereof and application - Google Patents
A kind of anti-burning type corn-specific controlled-release fertilizer and preparation method thereof and application Download PDFInfo
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Abstract
The present invention relates to a kind of anti-burning type corn-specific controlled-release fertilizer, according to corn growing season regulation of fertilizer requirement, soil characteristic and ecotope, by resin-bonded grinding wheel, particle diammonium phosphate, granular potassium sulfate, particle zinc fertilizer, granulated boric fertilizer is accurately composite prepares anti-burning type corn-specific controlled-release fertilizer, Controlled Release Fertilizer nutrient release curve and corn nutrient uptake curve basically identical, under certain usage quantity, even if seed manure isolation is improper also there will not be burning kind, burn seedling phenomenon, not only ensure that the safety of corn seed seedling but also effectively avoid the loss of fertilizer nutrient, decrease the pollution to environment, and reduce labour cost and intensity, improve utilization rate of fertilizer.
Description
Technical field
The present invention relates to a kind of corn-specific controlled-release fertilizer, specifically a kind ofly not burn kind the corn-specific controlled-release fertilizer burning seedling, belong to slow-release or control-release fertilizer technical field.
Background technology
As one of national main food cash crop, corn yield is high, and fertilizer requirement is large.Common fertilizer dissolution rate is fast, meets and has a large amount of nutrient drip washing rainy season in soil, cause the waste of fertilizer, pollute environment, and often the later stage supplies nitrogen hunger, and the withered phenomenon of jaundice appears in plant.Liaoning, northeast, Jilin and area, some mountain areas are cultivated and are still the traditional mode that people draws plough or horse-drawn plough, and single list ditch is sowed.If use in a large number disposable and easily cause the too high suppression growth of seedling of root in seedling stage district nutrient density, even occur that burning is planted, burn seedling phenomenon, peasant will reseed again, add the burden of labour cost and peasant.
Chinese patent literature CN1990433 (application number 200510136750.2) discloses a kind of mix type maize subsoil-application special-purpose fertilizer, humic acid, Dyhard RU 100, cyanogen quinone controlled-release of additives and the fertilizer such as urea, Repone K compound is adopted to form, though can single fertilization but due to containing more readily avaiable fertilizer, impose on easily to produce near seed to burn and kind burn a seedling phenomenon.
Chinese patent literature CN101177362A (application number 200710114213.7) discloses a kind of corn-specific controlled-release fertilizer and preparation method thereof.It forms by sulfur coating urea, thermoplastic resin membrane wrapping urea, Repone K, zinc sulfate etc. are composite.Sulfur coating material in atmosphere instability easily breaks, and contacts with seed or root system, very easily causes to burn and plants or burn root phenomenon.
Chinese patent literature CN101823923A(application number 201010159451.1) disclose seed-friendly corn-specific controlled-release fertilizer.It adds high molecular polymer coated carbamide by sulphur, sulphur adds high polymer film-coated Repone K, double-deck coated carbamide, diammonium phosphate, granule potassium chloride and zinc sulfate are composite forms for the double-deck coated carbamide of 4.5% thermoplastic thermosetting, 5.0% thermoplastic thermosetting.Have employed different coated fertilizer coating to form, though its particle uniformity of cracky is not poor, nutrients release is irregular, if contact completely with root, can not ensure to burn kind of a burning seedling completely.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of anti-burning type corn-specific controlled-release fertilizer, according to the release characteristics of film and corn law of nutritive absorption formulated, directly can contact with corn seed, and not burn kind and burn a root and burn a seedling, and disposablely to apply, time and labour saving is laborsaving.
Term illustrates:
In Controlled Release Fertilizer field, dressing rate: described dressing rate, refers to that coating agent accounts for the weight percent of fertilizer total amount.
Technical scheme of the present invention is as follows:
A kind of anti-burning type corn-specific controlled-release fertilizer, it is characterized in that, the parts by weight of raw materials of described fertilizer is as follows:
Described resin-bonded grinding wheel take granular urea as core fertilizer, core fertilizer outside surface is coated with the agent of organic polymer coating and obtains, in seed-coating machine, granular urea is heated to 50 ~ 70 DEG C, is added with the surface that the agent of organic polymer coating is evenly coated on granular urea, solidify 4 ~ 6 minutes; Repeat above-mentioned coating steps 3 ~ 5 times until the agent of organic polymer coating accounts for 2 ~ 7% of fertilizer total amount, the controlled release phase is 60 ~ 120 days.Described resin-bonded grinding wheel Shandong Moith Ecological Fertilizers Co., Ltd. is on sale.
The mass percentage of the nitrogen of described spray granulating compound potassium sulfate fertilizer, phosphorus, potassium is respectively 15%, 15%, 15%, and Shandong Hongri Acron Chemical Joint Stock Co., Ltd. is on sale.
In described granulated boric fertilizer, to be that 15%, An Huimao executes new-type fertilizer company limited on sale for the mass percentage of boron.
In described particle zinc fertilizer, to be that 30%, An Huimao executes new-type fertilizer company limited on sale for the mass percentage of zinc.
Described particle diammonium phosphate is commercially available prod, and in particle diammonium phosphate, the mass percentage of nitrogen, phosphorus is respectively 18%, 46%.
In described granular potassium sulfate, potassium mass percentage is 50%, and on green grass or young crops, chemical industry Shanghai company limited is on sale.
The particle diameter of all raw materials is all best within the scope of 2 ~ 4.75mm above.
The present invention is preferred, described organic polymer coating agent is polyurethane coated dose or epoxy resin integument agent, and polyurethane coated dose is generated by the polymerization in 85 DEG C ~ 95 DEG C time of the diethanolamine of the polymethylene diisocyanate of 70 ~ 85 parts (thick MDI or polymeric MDI), the polyether glycol G530 of 8 ~ 18 parts, the glycerol of 3 ~ 6 parts and 3 ~ 6 parts; Described epoxy resin integument agent is generated by the solidifying agent TZ-500 of epoxy resin E54 or E51 of 60 ~ 75 parts, the trihydroxymethylpropanyltri diglycidyl ether of 10 ~ 20 parts and 10 ~ 25 parts polymerization in 85 DEG C ~ 95 DEG C time.Polyurethane coated dose or epoxy resin integument agent are existing commercially available prod, also obtain according to method described in patent ZL200810123081.9.
The fertilizer releasing period of described resin-bonded grinding wheel is 60 days, 25 degrees Celsius, the hydrostatic burst size of placing 24 hours is less than 1%, the burst size leaving standstill 10 days is less than 5%.
The present invention is preferred, anti-burning type corn-specific controlled-release fertilizer, and the parts by weight of raw materials of fertilizer is as follows:
Preferred further, anti-burning type corn-specific controlled-release fertilizer, the parts by weight of raw materials of fertilizer is as follows:
Preferred further, anti-burning type corn-specific controlled-release fertilizer, the parts by weight of raw materials of fertilizer is as follows:
The preparation method of anti-burning type corn-specific controlled-release fertilizer of the present invention, above-mentioned each raw material put into together stirrer by formula and stir 5 ~ 10 minutes, rotating speed is 10 turns/min, abundant mixing and get final product.Then the metering of the fertilizer mixed feeding, wrapping machine are carried out measuring, packing.
Anti-burning type corn-specific controlled-release fertilizer of the present invention is the release characteristics according to corn law of nutritive absorption and resin molding, and the boron, zinc etc. that add needed for a small amount of plant strain growth medium trace element is composite forms, nitrogen, phosphorus nutrient release curve and corn are basically identical to nitrogen, phosphorus nutrient uptake curve, and the various nutritive ingredients that can meet needed for corn growth, improve fertilizer efficiency, improve maize grain yield.
The application of anti-burning type corn-specific controlled-release fertilizer of the present invention:
Fertilizing method is as follows:
Disposable trench digging base imposes on seed sidepiece 2 ~ 5 centimetres, fertilization depth 10 ~ 25 centimeters, prevents burning from planting, burns root, burns seedling.
Rate of fertilizer application: every mu of fertilising 25 ~ 35kg or every strain fertilising 8 ~ 15 grams.
Advantage of the present invention is as follows:
1, corn-specific controlled-release fertilizer of the present invention makes corn-specific controlled-release fertilizer according to corn growing season regulation of fertilizer requirement, soil characteristic and ecotope, resin-bonded grinding wheel is for controlling the release of nitrogen nutrient, and carry out blending with granular potassium sulfate, improve fertilizer element utilization ratio, under certain usage quantity, even if contact with seed also to there will not be to burn to plant and burn seedling phenomenon, improve the security of seedling, and the fertilising of nearly kind is conducive to Root Absorption.
2, in anti-burning type corn-specific controlled-release fertilizer of the present invention, the initial release rate of resin-bonded grinding wheel is less than 1%, and accumulative release in first 10 days is less than 5%, nutrient release curve is S type, basically identical to nitrogen nutrient uptake curve with corn, and the various nutritive ingredients that can meet needed for corn growth, improve fertilizer efficiency, improve maize grain yield.
3, anti-burning type special-purpose control-release fertilizer of the present invention is the absorbing rule of release characteristics according to mould material and corn nutrient, adds a certain amount of trace element formulated, only needs disposablely use sufficient base fertilizer, need not topdress in vegetative period again.Reduce labour intensity and the labour cost of peasant, time and labour saving is laborsaving, improves economic benefit.
4, the present invention can improve utilization rate of fertilizer, thus adds the amount that Crop utilizes nutrient, and simultaneously owing to dropping into the minimizing of fertilizer amount, the amount of the nitrogen that fertilizer discharges in environment and phosphorus also reduces greatly, has both saved resource, can effectively preserve the ecological environment again.
Accompanying drawing explanation
Fig. 1 is the dietetic alimentation graphic representation of embodiment 1 corn-specific controlled-release fertilizer nutrient element releasing rule and corn, curve with filled box is Controlled Release Fertilizer nitrogen nutrient element releasing rule curve, curve with black circle is corn nitrogen law of nutritive absorption curve, X-coordinate is the number of days after corn seeding, and ordinate zou is nutrients accumulation release rate.
Embodiment
Below in conjunction with embodiment, the present invention will be further described, but be not limited thereto.
Resin-bonded grinding wheel in embodiment is Shandong Moith Ecological Fertilizers Co., Ltd. commercially available prod.
The preparation of resin-bonded grinding wheel: the core fertilizer of weighing is heated to 50 ~ 70 DEG C in seed-coating machine, the organic polymer coating agent prepared inputs in seed-coating machine by each dressing, the agent of organic polymer coating mixes with the core fertilizer constantly moved, and be assigned to rapidly the surface of core fertilizer uniformly, after about 4 ~ 6 minutes, the agent of organic polymer coating is cured as fine and close tough and tensile smooth rete at core fertilizer particle surface, repeat above-mentioned coating steps 3 ~ 5 times, obtained dressing rate 2% ~ 7%, the controlled release phase is the resin-bonded grinding wheel of 60 ~ 120 days, be 44% as nitrogen content in the granular urea of core core fertilizer, for mass percent.Described organic polymer coating agent is polyurethane coated dose, and polyurethane coated dose is generated by the polymerization in 85 DEG C ~ 95 DEG C time of the diethanolamine of the polymethylene diisocyanate of 75 parts, the polyether glycol G530 of 15 parts, the glycerol of 5 parts and 5 parts.
Embodiment 1
Anti-burning type corn-specific controlled-release fertilizer, material component mass parts is as follows:
The preparation method of anti-burning type corn-specific controlled-release fertilizer: get resin-bonded grinding wheel, particle two ammonium, granular potassium sulfate, particle zinc fertilizer and granulated boric fertilizer by formula, all raw materials are put into stirrer to stir 5 minutes, namely abundant mixing obtains anti-burning type corn-specific controlled-release fertilizer.Anti-burning type corn-specific controlled-release fertilizer sends into metering, wrapping machine carries out measuring, packing.
Embodiment 2
Anti-burning type corn-specific controlled-release fertilizer, material component mass parts is as follows:
The preparation method of anti-burning type corn-specific controlled-release fertilizer is with embodiment 1.
Embodiment 3
Anti-burning type corn-specific controlled-release fertilizer, material component mass parts is as follows:
The preparation method of anti-burning type corn-specific controlled-release fertilizer: get resin-bonded grinding wheel, particle two ammonium, granular potassium sulfate, spray granulating compound potassium sulfate fertilizer, particle zinc fertilizer and granulated boric fertilizer, all raw materials are put into stirrer to stir 8 minutes, namely abundant mixing obtains anti-burning type corn-specific controlled-release fertilizer.Anti-burning type corn-specific controlled-release fertilizer sends into metering, wrapping machine carries out measuring, packing.
Embodiment 4
Anti-burning type corn-specific controlled-release fertilizer, material component mass parts is as follows:
Preparation method is with embodiment 3.
Comparative example:
Common Repone K composite fertilizer, wherein nitrogen, Vanadium Pentoxide in FLAKES, KCE content are respectively 15wt%, 15wt%, 15wt%, urea, nitrogen content 46wt%.
The effect of above embodiment 1 ~ 4 and comparative example is as follows:
Test site: Liaoning Kaiyuan City, Tieling County; Changchun, Jilin, Panshi City;
Test period: 2011 and 2012
For examination corn variety: Jidan 261
The fertilizer of embodiment is used in each test point, and with comparative example fertilizer for contrast.Embodiment fertilizer amount is 60% of comparative example.Comparative example fertilizer amount is determined by local farmers custom consumption, and its fertilizing method is peasant habit method.In embodiment, whole controlled release special fertilizer imposes in seed furrow when corn seeding.Effect average result is in table 1.
Table 1, compared with comparative example the effect of embodiment
Claims (4)
1. an anti-burning type corn-specific controlled-release fertilizer, it is characterized in that, fertilizing method is as follows: disposable trench digging base imposes on seed sidepiece 2 ~ 5 centimetres, fertilization depth 10 ~ 25 centimeters, prevents burning from planting, burns root, burns seedling; Rate of fertilizer application: every mu of fertilising 25 ~ 35kg or every strain fertilising 8 ~ 15 grams; The parts by weight of raw materials of described fertilizer is as follows:
Resin-bonded grinding wheel 460 ~ 500 parts;
Particle diammonium phosphate 170 ~ 280 parts;
Granular potassium sulfate 170 ~ 280 parts;
Spray granulating compound potassium sulfate fertilizer 0 ~ 180 part;
Particle zinc fertilizer 5 ~ 8 parts;
Granulated boric fertilizer 5 ~ 8 parts;
Described resin-bonded grinding wheel take granular urea as core fertilizer, core fertilizer outside surface is coated with the agent of organic polymer coating and obtains, in seed-coating machine, granular urea is heated to 50 ~ 70 DEG C, is added with the surface that the agent of organic polymer coating is evenly coated on granular urea, solidify 4 ~ 6 minutes; Repeat above-mentioned coating steps 3 ~ 5 times until the agent of organic polymer coating accounts for 2 ~ 7% of fertilizer total amount, the controlled release phase is 60 ~ 120 days; 25 degrees Celsius, the hydrostatic burst size of placing 24 hours is less than 1%, the burst size leaving standstill 10 days is less than 5%; Described organic polymer coating agent is polyurethane coated dose or epoxy resin integument agent, and polyurethane coated dose is generated by the polymerization in 85 DEG C ~ 95 DEG C time of the diethanolamine of the polymethylene diisocyanate of 70 ~ 85 parts, the polyether glycol G530 of 8 ~ 18 parts, the glycerol of 3 ~ 6 parts and 3 ~ 6 parts; Described epoxy resin integument agent is generated by the solidifying agent TZ-500 of epoxy resin E54 or E51 of 60 ~ 75 parts, the trihydroxymethylpropanyltri diglycidyl ether of 10 ~ 20 parts and 10 ~ 25 parts polymerization in 85 DEG C ~ 95 DEG C time;
The mass percentage of the nitrogen of described spray granulating compound potassium sulfate fertilizer, phosphorus, potassium is respectively 15%, 15%, 15%,
In described granulated boric fertilizer, the mass percentage of boron is 15%,
In described particle zinc fertilizer, the mass percentage of zinc is 30%,
In described particle diammonium phosphate, the mass percentage of nitrogen, phosphorus is respectively 18%, 46%,
In described granular potassium sulfate, potassium mass percentage is 50%.
2. anti-burning type corn-specific controlled-release fertilizer according to claim 1, it is characterized in that, the parts by weight of raw materials of fertilizer is as follows:
Resin-bonded grinding wheel 470 parts;
Particle two ammonium 260 parts;
Granular potassium sulfate 260 parts;
Particle zinc fertilizer 5 parts;
Granulated boric fertilizer 5 parts.
3. anti-burning type corn-specific controlled-release fertilizer according to claim 1, is characterized in that, anti-burning type corn-specific controlled-release fertilizer, and the parts by weight of raw materials of fertilizer is as follows:
Resin-bonded grinding wheel 460 parts;
Particle two ammonium 180 parts;
Granular potassium sulfate 180 parts;
Spray granulating compound potassium sulfate fertilizer 170 parts;
Particle zinc fertilizer 5 parts;
Granulated boric fertilizer 5 parts.
4. a preparation method for the anti-burning type corn-specific controlled-release fertilizer described in any one of claims 1 to 3, by each raw material together
Put into stirrer to stir 5 ~ 10 minutes, rotating speed is 10 turns/min, abundant mixing and get final product.
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| CN103936477A (en) * | 2014-03-07 | 2014-07-23 | 刘业成 | Special corn efficient fertilizer and preparation method thereof |
| CN105967962A (en) * | 2016-05-16 | 2016-09-28 | 陈广锋 | Summer corn synchronous nutrition formula fertilizer |
| CN112020971B (en) * | 2020-08-05 | 2021-09-17 | 江西中波供销农业服务有限公司 | Base fertilizer and top dressing integrated fertilizing device and using method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328097A (en) * | 2008-06-20 | 2008-12-24 | 钟成虎 | Compound film controlled release fertilizer and organic polymer coating material thereof |
| CN102351602A (en) * | 2011-07-18 | 2012-02-15 | 华南农业大学 | Synchronous nutrition fertilizers, preparation methods thereof and applications thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328097A (en) * | 2008-06-20 | 2008-12-24 | 钟成虎 | Compound film controlled release fertilizer and organic polymer coating material thereof |
| CN102351602A (en) * | 2011-07-18 | 2012-02-15 | 华南农业大学 | Synchronous nutrition fertilizers, preparation methods thereof and applications thereof |
Non-Patent Citations (1)
| Title |
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| 玉米、水稻施用锌、硼微肥的效果;陈静;《农业与技术》;20020930;第22卷(第4期);72-74 * |
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Effective date of registration: 20180918 Address after: 253000 Economic Development Zone of Dezhou plain county, Shandong Province Patentee after: Plain county interpretation of agricultural science and Technology Co., Ltd. Address before: 276000 66 Kunming Road, Linyi economic and Technological Development Zone, Shandong province (gshun Technology Park) Patentee before: Shandong Moith Ecological Fertilizer Co., Ltd. |