CN107056438A - Potassium polyphosphate strawberry slow-release fertilizer and its production method - Google Patents
Potassium polyphosphate strawberry slow-release fertilizer and its production method Download PDFInfo
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- CN107056438A CN107056438A CN201710215793.2A CN201710215793A CN107056438A CN 107056438 A CN107056438 A CN 107056438A CN 201710215793 A CN201710215793 A CN 201710215793A CN 107056438 A CN107056438 A CN 107056438A
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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
- 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
- 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 strawberry slow-release fertilizer and its production method, include the raw material of following parts by weight：50 60 parts of urea；70 80 parts of potassium polyphosphate；0.5 0.8 parts of magnesium nitrate；0.5 0.7 parts of calcium nitrate；1.8 2.2 parts of trace element；8 10 parts of bone meal；6 10 parts of ammonium humate；10 15 parts of Chicken dung；24 parts of alcohol effluent；10 15 parts of medicinal powder；15 20 parts of sustained release agent.The nutrient uptake feature that potassium polyphosphate strawberry slow-release fertilizer produced by the invention grows according to strawberry is prepared, produce obtained potassium polyphosphate strawberry slow-release fertilizer, nutritious, equilibrium, rich in various nutrients and middle trace element, nutritional ingredient in nutrient, and fertilizer needed for supplement strawberry 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 strawberry quality.
Description
Technical field
The present invention relates to a kind of fertilizer, and in particular to a kind of potassium polyphosphate strawberry slow-release fertilizer and its production method, belongs to
Technical field of fertilizer production.
Background technology
Strawberry（Latin language scientific name：Fragaria ananassa Duchesne）, the rose family, Fragaria perennial herb,
A kind of red flowers and fruits, also known as pineapple strawberry, the red certain kind of berries, the foreign certain kind of berries, the certain kind of berries etc., outward appearance is in heart, and delicious red tender, pulp succulence contains
There is special strong fruit aroma.Strawberry is sweet, cool in nature, the effects such as having moistening lung and production of body fluid, strengthening the spleen and stomach, and several strawberries are eaten after meal,
Digestion is contributed to whet the appetite, invigorating the spleen is promoted the production of body fluid.According to surveying and determination, containing sugared 8 to 9 grams, 0.4 to 0.6 gram of protein in every 100 grams of strawberry pulp,
50 to 100 milligrams of vitamin C is higher 7 to 10 times than apple, grape.And its malic acid, citric acid, vitamin B1, vitamin
B12, and the content of carrotene, calcium, phosphorus, iron are also higher 3 to 4 times than apple, pears, grape.Strawberry nutrition enriches, with improving eyesight
Nourishing the liver is acted on, and can be helped digest, unobstructed stool.Recent physician has found that often edible strawberry is to preventing and treating artery sclerosis and hat
Worry is also benefited.Studied according to foreign medical science man, contain anticancer component in strawberry, the growth of tumour cell can be suppressed.Strawberry
Nutritional ingredient is easily by human consumption, absorption, and eat also will not suffer from cold or get angry more, be healthy food suitable for people of all ages.
Strawberry has cultivation in China various regions, and needs to apply fertilizer in the planting process of strawberry, and the input pair of fertilizer
The yield of strawberry serves vital effect.In modern strawberry cultivating, artificially applying fertilizer turns into strawberry production and high yield
The important measures of cultivation.But current commercial type be used for the fertilizer that strawberry applies be typically all for supplement certain element or
The common chemical fertilizer that person uses, and the fertilizer that actually strawberry effectively absorbs in planting process is basic less than more than 50%, a lot
The nutritive value of fertilizer is all wasted, that is to say, that the utilization rate of fertilizer generally applied is very low, therefore, in the process of plantation strawberry
In, it is often necessary to the nutrient needed for strawberry production could be met by carrying out repeatedly fertilising, and repeatedly labor of fertilizer application intensity is big, time-consuming to take
Work.Therefore the research on can repeatedly discharge the required nutrition of fertilizer supply strawberry growth is also very necessary urgently to be resolved hurrily
's.
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 strawberry, people are also constantly studied, phase is retrieved
The document of pass is such as：The Chinese patent of Application No. 201410255930.1 disclose a kind of special ureaformaldehyde slow release fertilizer of strawberry and
Its preparation method, the raw material that the organic fertilizer includes following mass fraction is made：1~10 part of starch, 20~50 parts of urea, first
It is 20~25 parts of aldehyde, 50~100 parts of cow dung, 50~80 parts of Os Sus domestica powder, 30~100 parts of bagasse, 10~20 parts of compound probiotic, micro-
2~5 parts of secondary element.The invention additionally provides a kind of preparation method of the special ureaformaldehyde slow release fertilizer of strawberry.What the invention was provided
The special ureaformaldehyde slow release fertilizer of a kind of strawberry, by the way that common fertilizer is changed into ureaformaldehyde slow release fertilizer so that the chemical fertilizer can be more than enough
Secondary slow release nutriment supply strawberry growth, enables strawberry rich in various micro additionally by increase trace element
Element, is beneficial to health, simultaneously as adding compound probiotic, can preferably promote strawberry healthy growth, obtains
The strawberry of high-quality.
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, while risk can be brought to soil environment.Currently,
In terms of the preparation of slow-release fertilizer, influenceed by membrane material and production technology cost, slow-release fertilizer it is on the high side, limit its popularization
And application；And if selected coated fertilizer is improper, can be damaged to soil texture.
The content of the invention
It is an object of the invention to provide a kind of potassium polyphosphate strawberry slow-release fertilizer and its production method, the potassium polyphosphate
Strawberry slow-release fertilizer is that the nutrient uptake feature grown according to strawberry is prepared, and can provide a variety of nutrition member needed for strawberry 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 strawberry quality.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of potassium polyphosphate strawberry slow-release fertilizer, includes the raw material of following parts by weight：
50-60 parts of urea；70-80 parts of potassium polyphosphate；0.5-0.8 parts of magnesium nitrate；0.5-0.7 parts of calcium nitrate；Trace element
1.8-2.2 part；8-10 parts of bone meal；6-10 parts of ammonium humate；10-15 parts of Chicken dung；2-4 parts of alcohol effluent；Medicinal powder 10-15
Part；15-20 parts of sustained release agent；Described trace element and weight ratio are Fe:Mn:Zn:Cu:B:Mo=2:2:1:1:1:0.5；
The production method of described potassium polyphosphate strawberry slow-release fertilizer is：
（1）Magnesium nitrate, 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 and medicinal powder are mixed, mixture B is obtained, is then fully mixed mixture A and mixture B
Close, be eventually adding urea and ammonium humate is well mixed, obtain mixture C；
（3）Mixture C is crushed through gravity system, fully blending is uniform, then add alcohol effluent conduct by weight
Binding agent, is granulated by drum granulating method, and particle is made, is wrapped and sustained release agent in particle outer layer, is dried, is obtained product.
Above-mentioned potassium polyphosphate strawberry 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 strawberry slow-release fertilizer, described medicinal powder is according to bitter skin by dried Celastrus angulatus and Chinese prickly ash
Rattan:Chinese prickly ash is 3:1 weight is than crushing what is obtained after mixing.
Above-mentioned potassium polyphosphate strawberry 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.
Alcohol effluent used is using sugar refinery saccharified residues-molasses as raw material, in fermenting and producing alcohol mistake in the present invention
Solid content in the high concentrated organic wastewater produced in journey, molasses alcohol waste liquid（Dry after removing water）70% is organic matter, its
In have sugar, protein, amino acid, vitamin etc., residue 30% is ash content, and containing inorganic salts such as nitrogen, phosphorus, potassium, calcium, magnesium, potassium contains
Amount is high, and traces of heavy metals is nontoxic, harmless；These are all animal and plant nutrients, are valuable resources.Molasses alcohol waste liquid is supported
Divide constituent content many, viscosity is strong.Fertilizer is prepared after alcohol effluent is mixed with other raw materials, fertilizer balling ratio can be improved, is increased
The content of organic matter and nutrient element in the fertilizer being made, makes fertilizer efficiency more preferable.Ammonium humate used can in the present invention
By being commercially available.
The Celastrus angulatus (Celastrus angulatus Maxim.) that the present invention makes used in medicinal powder is plant kingdom's Celastrales
(Celastrales) Celastrus (Celastrus), the root skin powder and seed oil of Celastrus angulatus can significantly control the evil such as sitophilus zea-mais
The formation of worm population, Celastrus angulatus is mainly stomach poison function power to insect by force, and Celastrus angulatus dry root obtained solution to boil water is to insect
With the effect such as poisoning, food refusal, anesthesia, Celastrus angulatus is to cabbage caterpillar, aulacophora femoralis, daikon leaf beetle, mythimna separata, rice plant skipper, turnip sawfly, Chinese scholartree
Looper, sitophilus zea-mais, locust, diamondback moth etc. have good prevention effect.
Chinese prickly ash used,【Alias】Big green pepper, long and thin hot pepper, another name for Sichuan Province green pepper, pericarpium zanthoxyli or Chinese pepper；【Latin name】Zanthoxylum.For rue
The pericarp of savoury herb Chinese prickly ash.Chinese prickly ash, which is used as medicine, cold dispelling eliminating dampness, the effect of desinsection；Seed can extract oil；Leaf agricultural chemicals, the pericarp of Chinese prickly ash
Contain in volatile oil, oil containing different anisole and Geraniol etc.；Show stronger, antibacterial, antifungic action.Chinese prickly ash is put into
Beanbag is tightened, and being placed in rice cylinder or grain sack can be with desinsection.
The homemade potassium polyphosphate nutrient content of the present invention is high, and dissolubility is good, is difficult and calcium, magnesium, iron, aluminium plasma reaction
And phosphate radical is failed, potassium polyphosphate is a kind of fertilizer quickly with long-acting combination, can be the P elements needed for crop provides
And potassium element, PA 800K is easily absorbed by crops.Property is stable at normal temperatures for the homemade potassium polyphosphate of the present invention, under normal temperature
3 months are placed without precipitation, is transported and easy to use.But the production of PA 800K is not easily controlled, the present invention prepares poly phosphorus
Sour potassium, the order that material is added must be that polyphosphoric acids is added drop-wise in potassium hydroxide, because polyphosphoric acids viscosity is very big and reaction
Substantial amounts of heat can be released, if potassium hydroxide is added drop-wise in polyphosphoric acids, reaction heat is difficult to pass to cooling device, is easily led
The too high PA 800K for causing generation of local temperature is caused to hydrolyze and fail.And the concentration of potassium hydroxide used need to 65% with
On, otherwise water in products point is excessive, it is impossible to obtain required K2O and P2O5Content.
Beneficial effects of the present invention are：
1st, the present invention prepares potassium polyphosphate strawberry slow-release fertilizer and first prepares potassium polyphosphate, and production method is unique, has no report, adopts
The potassium polyphosphate proportion being made of the technique is between 1.65, pH=6~7, the degree of polymerization is moderate, wherein containing about 50% orthophosphoric acid
Potassium, about 45% two PA 800Ks, the remaining phosphate for more high polymerization degree, under such ratio, it is not easy to separate out poly- phosphorus
Sour potassium crystalline solid.The permanent slow release of P elements energy, potassium polyphosphate is easily absorbed by crops.And be made using the technique
Potassium polyphosphate K2O content is 33%, P2O5Content is 10%, the low-phosphorous nitrogen-free of the high potassium of the potassium polyphosphate product, K2O
545g/L, total nutrient 710g/L.And the nutrient uptake feature of strawberry be also potassium and nitrogen it is high, it is necessary to P elements it is less, therefore, adopt
The fertilizer of strawberry is prepared with the potassium polyphosphate, not only the nutrient in fertilizer can slowly discharge, strawberry can be to nutrition member
Element carries out quick and long-acting absorption, and utilization rate is high, and the strawberry slow-release fertilizer fertilizer efficiency being made is good and lasting, and the fertilizer being made is accorded with
The regulation of fertilizer requirement of strawberry is closed, is relatively beneficial to promote the growth of strawberry.
2nd, the medicinal powder used in potassium polyphosphate strawberry slow-release fertilizer prepared by the present invention is made up of Celastrus angulatus and Chinese prickly ash, is
A kind of plant insecticide, nuisanceless, the effect with good expelling parasite desinsection, by adding medicinal powder in fertilizer and then applying again
Being added in strawberry ground can play a part of walking quickly and keeping away and stomach is killed to the subterranean pest-insect of strawberry.So as to improve the disease-resistant, pest-resistant of strawberry
Evil ability.
3rd, the trace element that adds of the present invention contains the elements such as Fe, Mn, Zn, B, these micro- proportionings be all according to
What the nutrient uptake feature of strawberry was prepared, required trace element, and the homemade poly of present invention institute can be provided for strawberry
Potassium phosphate is a kind of inorganic polymer fertilizer in itself, can not only be the lasting potassium resource of the effect needed for strawberry provides, phosphorus source；And
Magnesium nitrate, calcium nitrate and trace element are added to stirring reaction in potassium polyphosphate, potassium polyphosphate has chelated mineral
The effect of ion, it is possible to increase micro- activity, the trace element of the Chelating state formed after reaction in such as calcium, manganese
It is more easy to be absorbed by plants, substantially increases the absorption efficiency of strawberry centering trace element.The potassium polyphosphate that the present invention is added is not
Micro- fertilizer efficiency activity micro- in can also improving in will not only reducing, improves 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.Sustained release agent used in the present invention will not be polluted to ecological environment.By
The fertiliser granulates outer layer being made wraps up in last layer sustained release agent, can improve the slow releasing function of fertilizer, the nutrient in fertilizer is slowly discharged,
Improve the utilization rate of fertilizer.Potassium polyphosphate strawberry slow-release fertilizer prepared by the present invention, potassium polyphosphate used inherently has
The function of slowly discharging, and by the way that sustained release agent is added in fertilizer, the rate of release of fertilizer can be controlled, fertilizer is substantially increased
The utilization rate of material.
5th, the nutrient uptake feature that potassium polyphosphate strawberry slow-release fertilizer produced by the invention grows according to strawberry is prepared, production
Obtained potassium polyphosphate strawberry slow-release fertilizer, nutritious, equilibrium, can be fast long-acting rich in various nutrients and middle trace element
Supplement strawberry 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 strawberry 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, so adopting
With new ammonium polyphosphate production method so that absorption of the strawberry to fertilizer is intended to the direction of organic fertilizer, grows fine, fruit
It is many and big.The fertilizer patent that several of the applicant apply on the same day be utilize polyphosphoric acids based on adapt to different crops
The series of products of fertilizer, are not configured to apply for a patent and pursue the situation of quantity.
Brief description of the drawings
Fig. 1 is the strawberry of fruiting period after being applied fertilizer using potassium polyphosphate strawberry slow-release fertilizer of the present invention to strawberry, from figure
In it is visible, apply strawberry after the slow-release fertilizer of the present invention and grow healthy and strong, pest and disease damage is less, the strawberry fruit born is sparkling and crystal-clear full
It is full.
Embodiment
Embodiment 1
A kind of potassium polyphosphate strawberry slow-release fertilizer, includes the raw material of following parts by weight：
50 parts of urea；70 parts of potassium polyphosphate；0.5 part of magnesium nitrate；0.5 part of calcium nitrate；1.8 parts of trace element；8 parts of bone meal；It is rotten
6 parts of phytic acid ammonium；10 parts of Chicken dung；2 parts of alcohol effluent；10 parts of medicinal powder；15 parts of sustained release agent；Described trace element and weight
Than for Fe:Mn:Zn:Cu:B:Mo=2:2:1:1:1:0.5；
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；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 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.
Described medicinal powder is according to Celastrus angulatus by dried Celastrus angulatus and Chinese prickly ash:Chinese prickly ash is 3:After 1 weight is than mixing
Crush what is obtained.The preparation method of described sustained release agent is：According to polyvinyl alcohol:Beta-schardinger dextrin:Water is 2:4:75 weight ratio
Polyvinyl alcohol, is first dissolved into 65 DEG C of hot water by example, 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 strawberry slow-release fertilizer is：
（1）Magnesium nitrate, 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 and medicinal powder are mixed, mixture B is obtained, is then fully mixed mixture A and mixture B
Close, be eventually adding urea and ammonium humate is well mixed, obtain mixture C；
（3）Mixture C is crushed through gravity system, fully blending is uniform, then add alcohol effluent conduct by weight
Binding agent, is granulated by drum granulating method, and particle is made, is wrapped and sustained release agent in particle outer layer, is dried, is obtained product.
Embodiment 2
A kind of potassium polyphosphate strawberry slow-release fertilizer, includes the raw material of following parts by weight：
57 parts of urea；76 parts of potassium polyphosphate；0.7 part of magnesium nitrate；0.6 part of calcium nitrate；2.1 parts of trace element；9 parts of bone meal；It is rotten
8 parts of phytic acid ammonium；13 parts of Chicken dung；3 parts of alcohol effluent；13 parts of medicinal powder；18 parts of sustained release agent；Described trace element and weight
Than for Fe:Mn:Zn:Cu:B:Mo=2:2:1:1:1:0.5；
The preparation method of described potassium polyphosphate comprises the following steps：
1. yellow phosphorus is placed in combustion furnace in being burnt at 650 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 82%, obtain solution；
3. in obtained solution, according to hydrogen sulfide gas:Solution is 1:Hydrogen sulfide gas is passed through molten by 1700 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 70%, strict control reaction
Temperature is 35 DEG C, stirs, reacts 140 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.
Described medicinal powder is according to Celastrus angulatus by dried Celastrus angulatus and Chinese prickly ash:Chinese prickly ash is 3:After 1 weight is than mixing
Crush what is obtained.The preparation method of described sustained release agent is：According to polyvinyl alcohol:Beta-schardinger dextrin:Water is 2.6:4.2:80 weight
Polyvinyl alcohol, is first dissolved into 70 DEG C of hot water by amount ratio, stirs 5 minutes, then adds beta-schardinger dextrin stirring and dissolving, mixing
Uniformly, sustained release agent is made.
The production method of described potassium polyphosphate strawberry slow-release fertilizer is：
（1）Magnesium nitrate, 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 and medicinal powder are mixed, mixture B is obtained, is then fully mixed mixture A and mixture B
Close, be eventually adding urea and ammonium humate is well mixed, obtain mixture C；
（3）Mixture C is crushed through gravity system, fully blending is uniform, then add alcohol effluent conduct by weight
Binding agent, is granulated by drum granulating method, and particle is made, is wrapped and sustained release agent in particle outer layer, is dried, is obtained product.
Embodiment 3
A kind of potassium polyphosphate strawberry slow-release fertilizer, includes the raw material of following parts by weight：
60 parts of urea；80 parts of potassium polyphosphate；0.8 part of magnesium nitrate；0.7 part of calcium nitrate；2.2 parts of trace element；10 parts of bone meal；It is rotten
10 parts of phytic acid ammonium；15 parts of Chicken dung；4 parts of alcohol effluent；15 parts of medicinal powder；20 parts of sustained release agent；Described trace element and weight
Than for Fe:Mn:Zn:Cu:B:Mo=2:2:1:1:1:0.5；
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 more than 65%, strict control is anti-
The temperature answered is 45 DEG C, stirs, reacts 120 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.
Described medicinal powder is according to Celastrus angulatus by dried Celastrus angulatus and Chinese prickly ash:Chinese prickly ash is 3:After 1 weight is than mixing
Crush what is obtained.The preparation method of described sustained release agent is：According to polyvinyl alcohol:Beta-schardinger dextrin:Water is 3:5:85 weight ratio
Polyvinyl alcohol, is first dissolved into 75 DEG C of hot water by example, 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 strawberry slow-release fertilizer is：
（1）Magnesium nitrate, 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 and medicinal powder are mixed, mixture B is obtained, is then fully mixed mixture A and mixture B
Close, be eventually adding urea and ammonium humate is well mixed, obtain mixture C；
（3）Mixture C is crushed through gravity system, fully blending is uniform, then add alcohol effluent conduct by weight
Binding agent, is granulated by drum granulating method, and particle is made, is wrapped and sustained release agent in particle outer layer, is dried, is obtained product.
Application effect
To further illustrate the advantage for the potassium polyphosphate strawberry slow-release fertilizer that present invention production is obtained, inventor is obtained using production
Potassium polyphosphate strawberry slow-release fertilizer carried out test of many times to some big strawberries in Guangxi District, wherein, in Nanning
The test situation of city Heng County is as follows：
1st, for examination strawberry cultivars：Flange ground strawberry.
2nd, experiment is set：
Experiment sets 3 processing, respectively 3 repetitions of processing, random district's groups arrangement, each processing plot area 66.7m2；Experiment is set
It is as follows：
Processing 1：Potassium polyphosphate strawberry slow-release fertilizer produced by the present invention is done into base according to 35kg/ mus of applied amount during strawberry cultivating
Fertilizer once applies people, in strawberry fruiting period by the urea of N contents 46% according to 6kg/ mus, kg/ mus of compound potassium sulfate fertilizer 10
Applied amount is topdressed to strawberry；
Processing 2：Potassium polyphosphate strawberry slow-release fertilizer produced by the present invention is done into base according to 35kg/ mus of applied amount during strawberry cultivating
Fertilizer once applies people, in strawberry fruiting period, does not topdress；
Processing 3：Conventional strawberry according to 35kg/ mus of applied amount is cooked into base with fertilizer-using 15-15-15 composite fertilizers during strawberry cultivating
Fertilizer once applies people, applies the urea of N contents 46% according to 6kg/ mus, 10kg/ mus of compound potassium sulfate fertilizer in strawberry fruiting period
Dosage topdresses to strawberry；
Experiment unified time plants and topdressed, and other strawberry field management measures are identical.
4th, result of the test：
Influence of three groups of different disposals to strawberry fruit quality and yield of strawberry is as shown in table 1 below：
It is many using the present invention compared to the processing 3 for not applying potassium polyphosphate strawberry slow-release fertilizer of the present invention from upper table 1
Yield and total reducing sugar, vitamin C and the solubility of strawberry of the processing 1 and processing 2 of PA 800K strawberry slow-release fertilizer in strawberry
Content in terms of solid content is obtained for raising, illustrates that using the potassium polyphosphate strawberry slow-release fertilizer of the present invention grass can be greatly improved
The quality and yield of the certain kind of berries, and for being all applied with the processing 1 and processing 2 of potassium polyphosphate strawberry slow-release fertilizer of the present invention, processing 1
Also strawberry is topdressed in the later stage, and handles 2 and is not topdressed, visible by contrasting, both are in yield and quality side
Face difference less, illustrates that potassium polyphosphate strawberry slow-release fertilizer of the present invention has preferable slow releasing function, even in strawberry growth period
Between do not apply urea etc. and topdressed, also have certain fertilizer to provide nutrient for the growth of strawberry in strawberry ground, further relate to
Potassium polyphosphate strawberry slow-release fertilizer fertilizer efficiency produced by the invention is good and fertilizer efficiency is permanent.And by applying the poly phosphorus of the present invention
Sour potassium strawberry slow-release fertilizer, strawberry grows healthy and strong, and pest and disease damage is less, and the strawberry fruit that plantation is obtained is sparkling and crystal-clear full, and fragrance is dense
Thickness, sweet and sour taste.
Claims (4)
1. a kind of potassium polyphosphate strawberry slow-release fertilizer, it is characterised in that include the raw material of following parts by weight：
50-60 parts of urea；70-80 parts of potassium polyphosphate；0.5-0.8 parts of magnesium nitrate；0.5-0.7 parts of calcium nitrate；Trace element
1.8-2.2 part；8-10 parts of bone meal；6-10 parts of ammonium humate；10-15 parts of Chicken dung；2-4 parts of alcohol effluent；Medicinal powder 10-15
Part；15-20 parts of sustained release agent；Described trace element and weight ratio are Fe:Mn:Zn:Cu:B:Mo=2:2:1:1:1:0.5；
The production method of described potassium polyphosphate strawberry slow-release fertilizer is：
（1）Magnesium nitrate, 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 and medicinal powder are mixed, mixture B is obtained, is then fully mixed mixture A and mixture B
Close, be eventually adding urea and ammonium humate is well mixed, obtain mixture C；
（3）Mixture C is crushed through gravity system, fully blending is uniform, then add alcohol effluent conduct by weight
Binding agent, is granulated by drum granulating method, and particle is made, is wrapped and sustained release agent in particle outer layer, is dried, is obtained product.
2. potassium polyphosphate strawberry 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 strawberry slow-release fertilizer according to claim 1, it is characterised in that described medicinal powder is by after drying
Celastrus angulatus and Chinese prickly ash according to Celastrus angulatus:Chinese prickly ash is 3:1 weight is than crushing what is obtained after mixing.
4. potassium polyphosphate strawberry 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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| CN107652065A (en) * | 2017-11-03 | 2018-02-02 | 广西壮族自治区金秀瑶族自治县科学技术情报研究所 | Lysimachia foenum-graecum Special slow release fertilizer and its production method |
| CN107673865A (en) * | 2017-11-02 | 2018-02-09 | 广西壮族自治区金秀瑶族自治县科学技术情报研究所 | Slow-release fertilizer of podocarpus and preparation method thereof |
| CN107721593A (en) * | 2017-11-02 | 2018-02-23 | 广西壮族自治区金秀瑶族自治县科学技术情报研究所 | Chinese yew slow release fertilizer and preparation method thereof |
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