CN106977277A - Potassium polyphosphate corn slow-release fertilizer and its production method - Google Patents
Potassium polyphosphate corn slow-release fertilizer and its production method Download PDFInfo
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- CN106977277A CN106977277A CN201710215788.1A CN201710215788A CN106977277A CN 106977277 A CN106977277 A CN 106977277A CN 201710215788 A CN201710215788 A CN 201710215788A CN 106977277 A CN106977277 A CN 106977277A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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Abstract
The present invention relates to a kind of potassium polyphosphate corn slow-release fertilizer and its production method, include the raw material of following parts by weight：55 65 parts of urea；Potassium polyphosphate:45 50 parts；10 15 parts of diammonium hydrogen phosphate；0.5 0.8 parts of magnesium sulfate；0.4 0.6 parts of calcium nitrate；1.5 2.0 parts of trace element；8 10 parts of bone meal；5 10 parts of humic acid；10 15 parts of decomposed cow dung；46 parts of trifoliate jewelvine；10 15 parts of sustained release agent.Potassium polyphosphate corn slow-release fertilizer produced by the invention is prepared according to the nutrient uptake feature of corn growth, produce obtained potassium polyphosphate corn slow-release fertilizer, nutritious, equilibrium, rich in various nutrients and middle trace element, nutritional ingredient in nutrient, and fertilizer needed for supplement corn that can be fast long-acting can slowly discharge, and fertilizer efficiency is permanent, be conducive to improving the utilization rate of fertilizer, play a part of increasing both production and income, improve corn quality.
Description
Technical field
The present invention relates to a kind of fertilizer, and in particular to a kind of potassium polyphosphate corn slow-release fertilizer and its production method, belongs to
Technical field of fertilizer production.
Background technology
Corn（Scientific name：Zea mays）, also known as maize, maize, maize, ear of maize；It is annual gramineae herbaceous plant,
It is important cereal crops and important feed resource.Cultivation history about more than 470 year of the corn in China.Current China
Sown area is only second to paddy and wheat at 300,000,000 mu or so, and the 3rd is occupied in cereal crops, the U.S. is only second in the world.Corn
There is plantation all over China, it is especially more with northeast, North China and southwestern each province.Corn is the health-care good product in coarse food grain, eats corn
Health to human body is rather favourable.Determine according to the study, every 106 kilocalories of 100 grams of corn heat content, 2.9 grams of cellulose, egg
4.0 grams of white matter, 1.2 grams of fat, 22.8 grams of carbohydrate, separately containing mineral matter element and vitamin etc..Contain in corn
Some crude fibres are higher 4-10 times than polished rice, smart face.Also contain a large amount of magnesium in corn, magnesium can strengthen intestinal wall wriggling, promote body
The excretion of waste.Corn is the important cereal crops of China, and corn plays an important role in China's grain security, is
Important forage crop, is the important source material of the industries such as food, chemical industry, fuel, medicine again.Therefore, its importance gets most of the attention.
Corn is to need to apply chemical fertilizer in a kind of important industrial crops of China, the planting process of corn, and the throwing of fertilizer
Enter and vital effect is served to the yield of corn.Modern corn agricultural in, artificially applying fertilizer turn into Maize Production and
The important measures of high-yield culturing.But in the actual planting process of corn, it is single and excessive fertilization that long-term existence fertilising
Problem, the average utilization of fertilizer is very low, and its main cause is the quick-acting and volatile property easy to lose of fertilizer.It is beautiful in plantation
During rice, it is often necessary to which the nutrient needed for Maize Production could be met by repeatedly apply fertilizer, and repeatedly labor of fertilizer application intensity
Greatly, it is time-consuming to take a lot of work, the need for modern Corn Industrialization has been not suitable with.
Slow-release fertilizer has fertilizer amount reduction, and utilization rate is improved, using convenient, the advantages of saving of labor is safe, slow release fertilizer
Invention solves to open new thinking and more effective approach for above mentioned problem, at present, and slow-release fertilizer has turned into countries in the world fertilizer
Expect the direction of industrial sustainable development.And in terms of the slow-release fertilizer used in corn, people are also constantly studied, phase is retrieved
The document of pass is such as：The Chinese patent of Application No. 200710080227.1 discloses a kind of slow release fertilizer special for corn, the corn
Slow-release fertilizer dedicated is that quinhydrones coated urea, particle general calcium (containing P2O5 14%), the granular potassium sulfate for taking 0.1%-0.3% (contain K2O
33%), after zinc sulfate, 2.5% polyvinyl alcohol, packed with spansule coat and slow release fertilizer special for corn is made；The invention
Have the beneficial effect that:Base fertilizer can be disposably used sufficient to overlay film corn, growth medium need not refertilize, will not without " burn seedlings " phenomenon
Because fertilising damages mulch film, the various nutritional ingredients needed for corn growth can be met, maize grain yield are improved, with equal nutrient content
Common fertilizer is compared to volume increase 14~17%, and every mu of ground can save recruitment 2 of topdressing, section 20 yuan/mu of branch.And for example, Application No.
200710114213.7 Chinese patent disclose a kind of corn-specific controlled-release fertilizer and preparation method thereof, the invention is according to corn
Regulation of fertilizer requirement, by 5% and 6% thermoplastic resin membrane wrapping urea, sulfur coating urea and potassium chloride composite fertilizer, potassium chloride, big
Grain urea and zinc sulfate are accurately compounded, and form corn proprietary formula Controlled Release Fertilizer.The Controlled Release Fertilizer nutrient element releasing rule and corn
Nutrient absorption law match, and reduce Controlled Release Fertilizer cost, the single-dose application before corn seeding using the Controlled Release Fertilizer, with
No longer topdressed afterwards, reduce the labor intensity and recruitment cost of peasant.
At present, slow-release fertilizer turns into the direction of countries in the world fertilizer industry sustainable development.Slow-release fertilizer has organic synthesis type
Two kinds of slow-release fertilizer and envelope type slow release fertilizer, wherein, envelope type slow release fertilizer has excellent controllable sustained-release performance, is always slow-release fertilizer
The emphasis direction and main task of research and development.But the coated fertilizer that envelope type slow release fertilizer is used at present is generally non-nutriment in a fertilizer polymerization
Thing, effective nutriment in a fertilizer is low, and product cost is high, and non-nutriment in a fertilizer polymer price is high, and the yield for ultimately resulting in corn is relatively low, while can give
Soil environment brings risk.The still face problems with corn planting at present：One is that slow-release fertilizer specific aim is not strong, and Different Crop is needed
Nitrogen, potassium, phosphorus and other mineral matters asked are differed, from the not strong slow-release fertilizer of specific aim easily cause waste and soil pollution and
It is unfavorable for volume increase；Two are influenceed by membrane material and production technology cost, slow-release fertilizer it is on the high side, limit its promote and should
With；Three be that selected coated fertilizer is improper, and soil texture can be damaged.
The content of the invention
It is an object of the invention to provide a kind of potassium polyphosphate corn slow-release fertilizer and its production method, the potassium polyphosphate
Corn slow-release fertilizer is prepared according to the nutrient uptake feature of corn growth, can provide a variety of nutrition member needed for corn growth
Nutritional ingredient in element, and fertilizer can slowly discharge, and fertilizer efficiency is permanent, be conducive to improving the utilization rate of fertilizer, play volume increase
Increase income, improve the effect of corn quality.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of potassium polyphosphate corn slow-release fertilizer, includes the raw material of following parts by weight：
55-65 parts of urea；45-50 parts of potassium polyphosphate；10-15 parts of diammonium hydrogen phosphate；0.5-0.8 parts of magnesium sulfate；Calcium nitrate
0.4-0.6 parts；It is micro- 1.5-2.0 parts；8-10 parts of bone meal；5-10 parts of humic acid；
10-15 parts of decomposed cow dung；4-6 parts of trifoliate jewelvine；10-15 parts of sustained release agent；Described trace element and weight ratio are Fe:Mn:
Zn:Cu:B:Mo=3:2:3:2:2:0.8。
The production method of described potassium polyphosphate corn slow-release fertilizer is：
（1）Magnesium sulfate, calcium nitrate and trace element are added in potassium polyphosphate according to parts by weight and mix 15-20
Minute obtains mixture A；
（2）Bone meal, decomposed cow dung, humic acid and trifoliate jewelvine are mixed, mixture B is obtained, then by mixture A and mixture
B is sufficiently mixed, and is eventually adding urea and diammonium hydrogen phosphate is well mixed, obtain mixture C；
（3）Mixture C is crushed through gravity system, fully blending is uniform, granulated by drum granulating method, and particle is made,
Particle outer layer is wrapped and sustained release agent, is dried, is obtained product.
Above-mentioned potassium polyphosphate corn slow-release fertilizer, the preparation method of described potassium polyphosphate comprises the following steps：
1. yellow phosphorus is placed in combustion furnace in being burnt at 500~700 DEG C, obtains P2O5Gas；
2. with blower fan by P2O5Gas is extracted into polymerization tower, and continuous water drenching makes P2O5Gas is molten into water, the P into solution2O5
Weight concentration reach 72~87%, obtain solution；
3. in obtained solution, according to hydrogen sulfide gas:Solution is 1:1000~2000 part by weight is by hydrogen sulfide gas
It is passed through in solution, reaction generation arsenones solid, filtering, the arsenic content in detection solution drops to below 1PPM, heavy metal contains
Amount drops to 30 below PPM, obtains polyphosphoric acids；
4. obtained polyphosphoric acids is slowly dropped in the potassium hydroxide solution that mass fraction is more than 65%, strict control is anti-
The temperature answered is stirred when being added dropwise, reacted 120~180 minutes between 15~45 DEG C, K in detection product2O and P2O5Weight
Percentage composition, treats K in product2O content is 33%, P2O5Content is 10%, and reaction terminates, and potassium polyphosphate is made.
Above-mentioned potassium polyphosphate corn slow-release fertilizer, the preparation method of described sustained release agent is：According to polyvinyl alcohol: β-
Cyclodextrin:Water is 2-3:4-5:Polyvinyl alcohol, is first dissolved into 65-75 DEG C of hot water by 75-85 part by weight, stirs 4-5
Minute, beta-schardinger dextrin stirring and dissolving is then added, is well mixed, sustained release agent is made.
In the present invention, bone meal used is the bone meal of the animals such as pig, ox, sheep, containing abundant nutrient, except calcic 20%
~30%, outside phosphorus 8%~14%, also containing the trace elements such as Mg, K, Na, Ba, Co, Cu, Fe, Mo, Ni, Ti, V, Zn, Sr, amino
Sour A wide selection of colours and designs (18 kinds)；Bone meal is a kind of good late effect property phosphate fertilizer, can be the P elements needed for crops provide growth, carry
High fertilizer efficiency, and add bone meal to improvement acid soil in fertilizer and promote crop growth highly beneficial.
Described trifoliate jewelvine（DerristrifoliataLour.）Belong to pulse family liana, climbing shrub is all bald net.
The main component containing insecticidal function is rotenone in derris root, also trifoliate jewelvine poison, grey green soy bean essence and toxicarol etc..Trifoliate jewelvine can
Pulvis, the emulsion being made, can mainly play contact insecticide to insect, also have with the immixture such as sulphur, Dalmatian chrysanthemum emulsion
The effect of stomach poison and repellent, its virulence is mainly the respiratory center and vasomotor nerve maincenter of paralysis insect, to aphid
Worm, lepidopterous larvae, the larva of beetle, dog flea, gadfly etc. are all effective in cure, it is possible to for treating human body mange.Rotenone is killed
Worm spectrum is wide, can prevent and treat 800 various pests, be one of three great tradition pesticide plants.Trifoliate jewelvine used in the present invention is washed for trifoliate jewelvine complete stool
Net chopping, dries, is obtained after crushing, prepare fertilizer by using trifoliate jewelvine progress, crop disease and insect can be prevented and treated, again
There can be obvious action to weeding.Insects repellant can be played a part of by adding trifoliate jewelvine in the present invention, so as to improve corn
Insect-pest ability.
Beneficial effects of the present invention are：
1st, ammonium polyphosphate preparation method of the present invention is unique, has no report, and homemade potassium polyphosphate nutrient content of the invention is high,
Dissolubility is good, be difficult with calcium, magnesium, iron, aluminium plasma reaction and phosphate radical is failed, potassium polyphosphate be it is a kind of quickly with it is long-acting
With reference to fertilizer, can be the P elements and potassium element needed for crop provides, PA 800K easily be absorbed by crops.Present invention self-control
Potassium polyphosphate property is stable at normal temperatures, 3 months are placed under normal temperature without precipitation, transport and easy to use.But polyphosphoric acid
The production of potassium is not easily controlled, and the present invention prepares potassium polyphosphate, and the order that material is added must be that polyphosphoric acids is added drop-wise to hydrogen
In potassium oxide, because polyphosphoric acids viscosity is very big and reaction can release substantial amounts of heat, if potassium hydroxide is added drop-wise to poly
In phosphoric acid, reaction heat is difficult to pass to cooling device, is easily caused the too high PA 800K for causing generation of local temperature and hydrolyzes and lose
Lose.And the concentration of potassium hydroxide used need to be more than 65%, otherwise water in products point is excessive, it is impossible to obtain required K2O and
P2O5Content.The present invention prepares potassium polyphosphate corn slow-release fertilizer and first prepares potassium polyphosphate, the poly phosphorus being made of the technique
The sour potassium degree of polymerization is moderate, wherein two PA 800Ks containing about 50% potassium orthophosphate, about 45%, the remaining phosphorus for more high polymerization degree
Hydrochlorate, under such ratio, it is not easy to separate out PA 800K crystalline solid, the slow release that P elements can be permanent, polyphosphoric acids
Potassium is easily absorbed by crops, and can slowly be discharged for the nutrient for preparing in potassium polyphosphate corn slow-release fertilizer, fertilizer, corn
Quick and long-acting absorption can be carried out to nutrient, utilization rate is high, the corn slow-release fertilizer fertilizer efficiency being made is good and lasting.
2nd, the trifoliate jewelvine used in potassium polyphosphate corn slow-release fertilizer prepared by the present invention is a kind of plant insecticide, no public affairs
Evil, the effect with good expelling parasite desinsection, by adding trifoliate jewelvine in fertilizer and then being re-applied in milpa to improve
Disease-resistant, the insect pest ability of corn.
3rd, the trace element that the present invention is added contains the elements such as Fe, Mn, Zn, B, and required micro member can be provided for corn
Element, and the homemade potassium polyphosphate of present invention institute is a kind of inorganic polymer fertilizer in itself, can not only be for needed for being provided corn
The lasting potassium resource of effect, phosphorus source；And magnesium sulfate, calcium nitrate and trace element are added in potassium polyphosphate stir anti-
Should, potassium polyphosphate has the effect of chelated metal ions, it is possible to increase micro- activity in such as calcium, manganese, by anti-
The trace element for the Chelating state that should be formed afterwards is more easy to be absorbed by plants, and substantially increases the absorption effect of corn centering trace element
Rate.The work micro- in can also improving of the potassium polyphosphate that the present invention is added fertilizer efficiency micro- in will not only reducing
Property, improve fertilizer efficiency.
4th, the sustained release agent used in the present invention is prepared from by polyvinyl alcohol, beta-schardinger dextrin and water, β-ring paste used
Smart safety and environmental protection, will not be polluted to environment.By wrapping up in last layer sustained release agent in the fertiliser granulates outer layer being made, fertilizer can be improved
The slow releasing function of material, makes the nutrient in fertilizer slowly discharge, and improves the utilization rate of fertilizer.
5th, potassium polyphosphate corn slow-release fertilizer prepared by the present invention, potassium polyphosphate used inherently has slow release
Function, and be added in fertilizer using sustained release agent, the rate of release of fertilizer can be controlled, the utilization rate of fertilizer is greatly improved.
6th, potassium polyphosphate corn slow-release fertilizer produced by the invention is prepared according to the nutrient uptake feature of corn growth, production
Obtained potassium polyphosphate corn slow-release fertilizer, nutritious, equilibrium, can be fast long-acting rich in various nutrients and middle trace element
Supplement corn needed for nutritional ingredient in nutrient, and fertilizer can slowly discharge, fertilizer efficiency is permanent, is conducive to improving fertilizer
Utilization rate, plays a part of increasing both production and income, improves corn quality.
6th, the applicant is a producer for producing polyphosphoric acid for many years, and the research of agricultural fertilizer is in the past few years directed to always,
Various crops were also carried out with fertilising pilot scale and field experiment, the inorganic npk fertilizer that current peasant uses particularly is seen
Due to few containing organic matter, it is used for a long time and causes soil hardening, worse and worse, pest and disease damage is increasingly severe for plant growth, some fertilizer
Although material is not so that sugarcane production-increasing, sugar content is high, poor quality, so new ammonium polyphosphate production method is employed,
So that absorption of the sugarcane to fertilizer is intended to the direction of organic fertilizer, sugar content is high.The fertilizer that several of the applicant apply on the same day
Material patent is, using the series of products for adapting to different Crop fertilizers based on polyphosphoric acids, to be not configured to apply for a patent and chase after
Seek the situation of quantity.
Embodiment
Embodiment 1
A kind of potassium polyphosphate corn slow-release fertilizer, includes the raw material of following parts by weight：
55 parts of urea；45 parts of potassium polyphosphate；10 parts of diammonium hydrogen phosphate；0.5 part of magnesium sulfate；0.4 part of calcium nitrate；Trace element
1.5 part；8 parts of bone meal；5 parts of humic acid；10 parts of decomposed cow dung；4 parts of trifoliate jewelvine；10 parts of sustained release agent；Described trace element and weight
Than for Fe:Mn:Zn:Cu:B:Mo=3:2:3:2:2:0.8.
The preparation method of described potassium polyphosphate comprises the following steps：
1. yellow phosphorus is placed in combustion furnace in being burnt at 500 DEG C, obtains P2O5Gas；
2. with blower fan by P2O5Gas is extracted into polymerization tower, and continuous water drenching makes P2O5Gas is molten into water, the P into solution2O5
Weight concentration reach 72%, obtain solution；
3. in obtained solution, according to hydrogen sulfide gas:Solution is 1:Hydrogen sulfide gas is passed through molten by 1000 part by weight
In liquid, reaction generation arsenones solid, filtering detects that the arsenic content in solution drops to below 1PPM, the content of heavy metal is dropped to
30 below PPM, obtain polyphosphoric acids；
4. obtained polyphosphoric acids is slowly dropped in the potassium hydroxide solution that mass fraction is more than 65%, strict control is anti-
The temperature answered is 15 DEG C, stirs, reacts 180 minutes when being added dropwise, K in detection product2O and P2O5Weight percentage, wait to produce
K in thing2O content is 33%, P2O5Content is 10%, and reaction terminates, and potassium polyphosphate is made.
The preparation method of described sustained release agent is：According to polyvinyl alcohol:Beta-schardinger dextrin:Water is 2:4:75 part by weight,
First polyvinyl alcohol is dissolved into 65 DEG C of hot water, stirs 5 minutes, then adds beta-schardinger dextrin stirring and dissolving, be well mixed, system
Obtain sustained release agent.
The production method of described potassium polyphosphate corn slow-release fertilizer is：
（1）Magnesium sulfate, calcium nitrate and trace element are added in potassium polyphosphate according to parts by weight and mix 15 points
Clock obtains mixture A；
（2）Bone meal, decomposed cow dung, humic acid and trifoliate jewelvine are mixed, mixture B is obtained, then by mixture A and mixture
B is sufficiently mixed, and is eventually adding urea and diammonium hydrogen phosphate is well mixed, obtain mixture C；
（3）Mixture C is crushed through gravity system, fully blending is uniform, granulated by drum granulating method, and particle is made,
Particle outer layer is wrapped and sustained release agent, is dried, is obtained product.
Embodiment 2
A kind of potassium polyphosphate corn slow-release fertilizer, includes the raw material of following parts by weight：
60 parts of urea；48 parts of potassium polyphosphate；12 parts of diammonium hydrogen phosphate；0.6 part of magnesium sulfate；0.5 part of calcium nitrate；Trace element
1.8 part；9 parts of bone meal；7 parts of humic acid；12 parts of decomposed cow dung；5 parts of trifoliate jewelvine；12 parts of sustained release agent；Described trace element and weight
Than for Fe:Mn:Zn:Cu:B:Mo=3:2:3:2:2:0.8.
The preparation method of described potassium polyphosphate comprises the following steps：
1. yellow phosphorus is placed in combustion furnace in being burnt at 600 DEG C, obtains P2O5Gas；
2. with blower fan by P2O5Gas is extracted into polymerization tower, and continuous water drenching makes P2O5Gas is molten into water, the P into solution2O5
Weight concentration reach 81%, obtain solution；
3. in obtained solution, according to hydrogen sulfide gas:Solution is 1:Hydrogen sulfide gas is passed through molten by 1600 part by weight
In liquid, reaction generation arsenones solid, filtering detects that the arsenic content in solution drops to below 1PPM, the content of heavy metal is dropped to
30 below PPM, obtain polyphosphoric acids；If detecting the arsenic content in solution and the content not up to above-mentioned requirements of heavy metal,
The content for being passed through arsenic content and heavy metal of the hydrogen sulfide gas into solution in the solution again reaches above-mentioned requirements；
4. obtained polyphosphoric acids is slowly dropped in the potassium hydroxide solution that mass fraction is 75%, strict control reaction
Temperature is 25 DEG C, stirs, reacts 150 minutes when being added dropwise, K in detection product2O and P2O5Weight percentage, treat in product
K2O content is 33%, P2O5Content is 10%, and reaction terminates, and potassium polyphosphate is made.
The preparation method of described sustained release agent is：According to polyvinyl alcohol:Beta-schardinger dextrin:Water is 2.5:4.5:80 weight
Polyvinyl alcohol, is first dissolved into 70 DEG C of hot water by ratio, stirs 4 minutes, then adds beta-schardinger dextrin stirring and dissolving, and mixing is equal
It is even, sustained release agent is made.
The production method of described potassium polyphosphate corn slow-release fertilizer is：
（1）Magnesium sulfate, calcium nitrate and trace element are added in potassium polyphosphate according to parts by weight and mix 18 points
Clock obtains mixture A；
（2）Bone meal, decomposed cow dung, humic acid and trifoliate jewelvine are mixed, mixture B is obtained, then by mixture A and mixture
B is sufficiently mixed, and is eventually adding urea and diammonium hydrogen phosphate is well mixed, obtain mixture C；
（3）Mixture C is crushed through gravity system, fully blending is uniform, granulated by drum granulating method, and particle is made,
Particle outer layer is wrapped and sustained release agent, is dried, is obtained product.
Embodiment 3
A kind of potassium polyphosphate corn slow-release fertilizer, includes the raw material of following parts by weight：
65 parts of urea；50 parts of potassium polyphosphate；15 parts of diammonium hydrogen phosphate；0.8 part of magnesium sulfate；0.6 part of calcium nitrate；Trace element
2.0 part；10 parts of bone meal；10 parts of humic acid；15 parts of decomposed cow dung；6 parts of trifoliate jewelvine；15 parts of sustained release agent；It is described micro- and again
Amount is than being Fe:Mn:Zn:Cu:B:Mo=3:2:3:2:2:0.8.
Above-mentioned potassium polyphosphate corn slow-release fertilizer, the preparation method of described potassium polyphosphate comprises the following steps：
1. yellow phosphorus is placed in combustion furnace in being burnt at 700 DEG C, obtains P2O5Gas；
2. with blower fan by P2O5Gas is extracted into polymerization tower, and continuous water drenching makes P2O5Gas is molten into water, the P into solution2O5
Weight concentration reach 87%, obtain solution；
3. in obtained solution, according to hydrogen sulfide gas:Solution is 1:Hydrogen sulfide gas is passed through molten by 2000 part by weight
In liquid, reaction generation arsenones solid, filtering detects that the arsenic content in solution drops to below 1PPM, the content of heavy metal is dropped to
30 below PPM, obtain polyphosphoric acids；
4. obtained polyphosphoric acids is slowly dropped in the potassium hydroxide solution that mass fraction is 80%, strict control reaction
Temperature is 45 DEG C, stirs, reacts 120 minutes when being added dropwise, K in detection product2O and P2O5Weight percentage, treat in product
K2O content is 33%, P2O5Content is 10%, and reaction terminates, and potassium polyphosphate is made.
The preparation method of described sustained release agent is：According to polyvinyl alcohol:Beta-schardinger dextrin:Water is 3:5:85 part by weight,
First polyvinyl alcohol is dissolved into 75 DEG C of hot water, stirs 4 minutes, then adds beta-schardinger dextrin stirring and dissolving, be well mixed, system
Obtain sustained release agent.
The production method of described potassium polyphosphate corn slow-release fertilizer is：
（1）Magnesium sulfate, calcium nitrate and trace element are added in potassium polyphosphate according to parts by weight and mix 20 points
Clock obtains mixture A；
（2）Bone meal, decomposed cow dung, humic acid and trifoliate jewelvine are mixed, mixture B is obtained, then by mixture A and mixture
B is sufficiently mixed, and is eventually adding urea and diammonium hydrogen phosphate is well mixed, obtain mixture C；
（3）Mixture C is crushed through gravity system, fully blending is uniform, granulated by drum granulating method, and particle is made,
Particle outer layer is wrapped and sustained release agent, is dried, is obtained product.
Application effect
To further illustrate the advantage for the potassium polyphosphate corn slow-release fertilizer that present invention production is obtained, inventor is obtained using production
Potassium polyphosphate corn slow-release fertilizer in Guangxi District some big milpas carried out test of many times, wherein, in Nanning
The test situation of city Binyang County is as follows：
1st, for examination corn variety：Osmanthus single 589.
2nd, experiment is set：
Experiment sets 3 processing, respectively 3 repetitions of processing, random district's groups arrangement, each processing plot area 100m2；Experiment is set such as
Under：
Processing 1：Potassium polyphosphate corn slow-release fertilizer produced by the present invention is done into base according to 30kg/ mus of applied amount during corn planting
Fertilizer once apply people, corn enter the grand period of growth when by the urea of N contents 46% according to 12kg/ mus, P will be contained2O5 16% mistake
Calcium phosphate topdresses according to 4kg/ mus of applied amount to corn；
Processing 2：Potassium polyphosphate corn slow-release fertilizer produced by the present invention is done into base according to 30kg/ mus of applied amount during corn planting
Fertilizer once applies people, when corn enters the grand period of growth, does not topdress；
Processing 3：Ordinary maize according to 30kg/ mus of applied amount is done into base with fertilizer-using 15-15-15 composite fertilizers during corn planting
Fertilizer once apply people, corn enter the grand period of growth when by the urea of N contents 46% according to 12kg/ mus, P will be contained2O5 16% mistake
Calcium phosphate topdresses according to 4kg/ mus of applied amount to corn；
Experiment unified time plants and topdressed, and other corn field management measures are identical.
4th, result of the test：
Influence of three groups of different disposals to corn kernel quality and corn yield etc. is as shown in table 1 below：
It is many using the present invention compared to the processing 3 for not applying potassium polyphosphate corn slow-release fertilizer of the present invention from upper table 1
The processing 1 of PA 800K corn slow-release fertilizer and processing 2 in the yield and the unit weight of corn of corn, crude protein, crude fat, thick form sediment
Content in terms of powder and lysine is obtained for raising, and illustrating can be big using the potassium polyphosphate corn slow-release fertilizer of the present invention
The big quality and yield for improving corn, and for being all applied with processing 1 and the place of potassium polyphosphate corn slow-release fertilizer of the present invention
Reason 2, processing 1 is also topdressed in the later stage to corn, and is handled 2 and do not topdressed, and visible by contrasting, both are in yield
Less, illustrate that potassium polyphosphate corn slow-release fertilizer of the present invention has preferable slow releasing function, even in jade with difference in terms of quality
Rice growth period does not apply urea etc. and topdressed, and also has certain fertilizer to provide nutrient for the growth of corn in milpa,
Further relate to that potassium polyphosphate corn slow-release fertilizer fertilizer efficiency produced by the invention is good and fertilizer efficiency is permanent.And by applying the present invention
Potassium polyphosphate corn slow-release fertilizer, plant grows tall and big, sturdy, and pest and disease damage is less, plants obtained corn particle
It is full.
Claims (4)
1. a kind of potassium polyphosphate corn slow-release fertilizer, it is characterised in that include the raw material of following parts by weight：
55-65 parts of urea；Potassium polyphosphate:45-50 parts；10-15 parts of diammonium hydrogen phosphate；0.5-0.8 parts of magnesium sulfate；Calcium nitrate
0.4-0.6 parts；It is micro- 1.5-2.0 parts；8-10 parts of bone meal；5-10 parts of humic acid；10-15 parts of decomposed cow dung；Trifoliate jewelvine 4-6
Part；10-15 parts of sustained release agent；
The production method of described potassium polyphosphate corn slow-release fertilizer is：
（1）Magnesium sulfate, calcium nitrate and trace element are added in potassium polyphosphate according to parts by weight and mix 15-20
Minute obtains mixture A；
（2）Bone meal, decomposed cow dung, humic acid and trifoliate jewelvine are mixed, mixture B is obtained, then by mixture A and mixture
B is sufficiently mixed, and is eventually adding urea and diammonium hydrogen phosphate is well mixed, obtain mixture C；
（3）Mixture C is crushed through gravity system, fully blending is uniform, granulated by drum granulating method, and particle is made,
Particle outer layer is wrapped and sustained release agent, is dried, is obtained product.
2. potassium polyphosphate corn slow-release fertilizer according to claim 1, it is characterised in that the system of described potassium polyphosphate
Preparation Method comprises the following steps：
1. yellow phosphorus is placed in combustion furnace in being burnt at 500~700 DEG C, obtains P2O5Gas；
2. with blower fan by P2O5Gas is extracted into polymerization tower, and continuous water drenching makes P2O5Gas is molten into water, the P into solution2O5
Weight concentration reach 72~87%, obtain solution；
3. in obtained solution, according to hydrogen sulfide gas:Solution is 1:1000~2000 part by weight is by hydrogen sulfide gas
It is passed through in solution, reaction generation arsenones solid, filtering, the arsenic content in detection solution drops to below 1PPM, heavy metal contains
Amount drops to 30 below PPM, obtains polyphosphoric acids；
4. obtained polyphosphoric acids is slowly dropped in the potassium hydroxide solution that mass fraction is more than 65%, strict control is anti-
The temperature answered is stirred when being added dropwise, reacted 120~180 minutes between 15~45 DEG C, K in detection product2O and P2O5Weight
Percentage composition, treats K in product2O content is 33%, P2O5Content is 10%, and reaction terminates, and potassium polyphosphate is made.
3. potassium polyphosphate corn slow-release fertilizer according to claim 1, it is characterised in that described trace element and weight
Than for Fe:Mn:Zn:Cu:B:Mo=3:2:3:2:2:0.8.
4. potassium polyphosphate corn slow-release fertilizer according to claim 1, it is characterised in that the preparation side of described sustained release agent
Method is：According to polyvinyl alcohol:Beta-schardinger dextrin:Water is 2-3:4-5:75-85 part by weight, is first dissolved into 65- by polyvinyl alcohol
In 75 DEG C of hot water, stir 4-5 minutes, then add beta-schardinger dextrin stirring and dissolving, be well mixed, sustained release agent is made.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107226764A (en) * | 2017-07-27 | 2017-10-03 | 望江县农旺农业专业合作社 | A kind of corn fertilizer |
| CN107455117A (en) * | 2017-08-01 | 2017-12-12 | 桂平市蒙圩镇火炎种养专业合作社 | A kind of corn high-yield cultivation method |
| CN107759337A (en) * | 2017-11-16 | 2018-03-06 | 广西宾阳县荣良农业科技有限公司 | A kind of fleece-flower root biological slow-release fertilizer |
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| CN107827560A (en) * | 2017-11-18 | 2018-03-23 | 黄其霞 | A kind of slow-release fertilizer of cassava and preparation method thereof |
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| CN107963927A (en) * | 2017-12-04 | 2018-04-27 | 大新县科学技术情报研究所 | A kind of buerretiodendron hsienmu slow-release fertilizer and preparation method thereof |
| CN108017441A (en) * | 2017-11-18 | 2018-05-11 | 黄其霞 | A kind of slow-release fertilizer of sugarcane and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818890A (en) * | 2014-03-18 | 2014-05-28 | 防城港博森化工有限公司 | Method for producing high-quality polyphosphoric acid |
| CN105330427A (en) * | 2014-11-15 | 2016-02-17 | 深圳市芭田生态工程股份有限公司 | Fully-nutritional liquid fertilizer containing organic carbon and preparation method of fully-nutritional liquid fertilizer |
| CN105347323A (en) * | 2015-12-15 | 2016-02-24 | 防城港博森化工科技股份有限公司 | Method of preparing ammonium polyphosphate by using phosphoric acid by wet process and yellow phosphorus as raw materials |
-
2017
- 2017-04-05 CN CN201710215788.1A patent/CN106977277A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818890A (en) * | 2014-03-18 | 2014-05-28 | 防城港博森化工有限公司 | Method for producing high-quality polyphosphoric acid |
| CN105330427A (en) * | 2014-11-15 | 2016-02-17 | 深圳市芭田生态工程股份有限公司 | Fully-nutritional liquid fertilizer containing organic carbon and preparation method of fully-nutritional liquid fertilizer |
| CN105347323A (en) * | 2015-12-15 | 2016-02-24 | 防城港博森化工科技股份有限公司 | Method of preparing ammonium polyphosphate by using phosphoric acid by wet process and yellow phosphorus as raw materials |
Non-Patent Citations (3)
| Title |
|---|
| 印华亮: "聚磷酸铵水溶肥料将助力"零增长"", 《中国农资》 * |
| 朱洪法等主编: "《石油化工辞典》", 30 June 2012, 金盾出版社 * |
| 陈清等著: "《果类蔬菜养分管理》", 31 May 2015, 中国农业大学出版社 * |
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| CN107455117A (en) * | 2017-08-01 | 2017-12-12 | 桂平市蒙圩镇火炎种养专业合作社 | A kind of corn high-yield cultivation method |
| CN107759337A (en) * | 2017-11-16 | 2018-03-06 | 广西宾阳县荣良农业科技有限公司 | A kind of fleece-flower root biological slow-release fertilizer |
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