CN107311778A - A kind of Tower-type melt granulation double regulation control composite fertilizer and preparation method thereof - Google Patents
A kind of Tower-type melt granulation double regulation control composite fertilizer and preparation method thereof Download PDFInfo
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- CN107311778A CN107311778A CN201710691280.9A CN201710691280A CN107311778A CN 107311778 A CN107311778 A CN 107311778A CN 201710691280 A CN201710691280 A CN 201710691280A CN 107311778 A CN107311778 A CN 107311778A
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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
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
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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
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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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Abstract
The invention discloses a kind of Tower-type melt granulation double regulation control composite fertilizer and preparation method thereof, belong to technical field of fertilizers.The fertilizer is made up of fertile core, first layer coating agent and second layer coating agent；The fertile core：First layer coating agent：The mass ratio of second layer coating agent is 100：3:5.Then the fertilizer carry out what coating processing twice was obtained, not only the nutrient with quick release but also the nutrient with long-acting release on surface again using ureaformaldehyde and other organic and inorganic fertilizer composition mixing granulations, and nutrients release emergency is mutually helped.Modified nano-titanium dioxide is also added in the present invention simultaneously for raw material, the dispersiveness of slurry in granulation process can be increased, strengthen the uniformity of granulation, make nutrients release also more uniform, the composition can also effectively absorb the heavy metal ion in soil simultaneously, improve the security of crop-planting.
Description
Technical field
The present invention relates to a kind of Tower-type melt granulation double regulation control composite fertilizer and preparation method thereof, belong to fertilizer technology neck
Domain.
Background technology
Fertilizer occupies very important status in agricultural production, is goods and materials investment maximum in agricultural production.China is
Large agricultural country, Fertilizer application amount is huge, but is due to that current fertilizer application is unreasonable, and long-term applying pesticides, chemical fertilizer, have in farmland
Evil residual is serious, and organic nutrient and microelement deficiencies, nitrogen, phosphorus, potassium are out of proportion, current agricultural production five disasters is occurred
Topic：One causes soil compaction phenomenon serious, and peasant's farming is difficult；Secondly rotten seat root and stem of certain plants of crop in farmland is not eared, knot of earing
Real rate is low, and some fields even acarpous physiological disturbance generally occurs, and peasant's preventing and treating is difficult；Thirdly quality of agricultural product is poor, go out
Rice rate is low, peasant grain seeking toilet：Four be that people eat the food containing agricultural chemicals, fertilizer residue material, causes a variety of disease prevention and cure difficult,
The fifth is chemical fertilizer utilization ratio is low, nutriment is lost in seriously, and environmental pollution is serious.People are edible to contain agricultural chemicals, fertilizer residue thing
The organs such as nervous system, liver, kidney in grain and oil, the gourd, fruit and vegetable of matter, heavy then direct harmful to human, cause to be poisoned to death；It is light then
Make one not interior Nitrate Accumulation excessive, become nitrite, cause the diseases such as cancer, artery sclerosis, cardiovascular disease, fetal anomaly
It is a large amount of to occur.As can be seen here：Nutriment is lost in serious, agricultural chemicals, chemical fertilizer hazard residue and not only causes huge damage to peasant's farming
Lose, and make quality of agricultural product poor, environment is polluted, and is caused to people's health, rural economic development and social construction
Huge hidden danger.
Composite fertilizer refer in nitrogen, phosphorus, three kinds of nutrients of potassium at least two kinds or more nutrient declarable contents by chemical method and
(or) fertilizer that is made of mixing method.The nutrient needed for various crop growth is contained in composite fertilizer, can largely mitigate the work of peasant
Intensity, therefore promote the trend that the application of composite fertilizer is modern agricultural development.It is combined in the market there is also various in style
Fertilizer, but the nutrients release of most of composite fertilizers is unbalanced, and what is had is too slow, and what is had is too fast, it is impossible to well with crop regulation of fertilizer requirement
It is consistent, cause fertilizer efficiency utilization rate low, it is impossible to greatest benefit be beneficial to crop growth.Thus how according to crop nutrition rank
The characteristics such as section, continuity, develop it is a kind of can reach fertilizer emergency mutually help effect long-acting, efficient composite fertilizer turn into urgently
The technical problem of solution.
The content of the invention
For problems of the prior art, the invention provides a kind of Tower-type melt granulation double regulation control composite fertilizer.
Then the fertilizer carried out coating twice on surface again and handled using ureaformaldehyde and other organic and inorganic fertilizer composition mixing granulations
Arrive, not only the nutrient with quick release but also the nutrient with long-acting release, nutrients release emergency is mutually helped.Simultaneously the present invention in also
Modified nano-titanium dioxide be with the addition of for raw material, the dispersiveness of slurry in granulation process can be increased, strengthen the uniformity of granulation, make
Nutrients release is also more uniform, while the composition can also effectively absorb the heavy metal ion in soil, improves crop-planting
Security.
Present invention also offers a kind of preparation method of Tower-type melt granulation double regulation control composite fertilizer.
The present invention uses following technical scheme：
A kind of Tower-type melt granulation double regulation control composite fertilizer, it is by fertile core, first layer coating agent and second layer coating agent
Composition；The fertile core：First layer coating agent：The mass ratio of second layer coating agent is 100：3:5；
The fertile core is made up of the raw material of following parts by weight：480-540 parts of urea, 150-250 parts of ureaformaldehyde, phosphoric acid one
210-250 parts of ammonium, 180-220 parts of potassium chloride, 40-80 parts of humic acid, 4-6 parts of alginic acid, 1-5 parts of zinc sulfate, boric acid 1-5
Part, 5-10 parts of marine alga slag, 1-3 parts of modified nano-titanium dioxide；
The first layer coating agent is chitosan and salicyclic acid derivatives poly- (4-N- methacrylic acids aminobenzoic acid) etc.
Mixed in molar ratio is made；
The second layer coating agent is silylating reagent zeolite, peat soil according to 1:1 weight is than composition；
The marine alga slag is one or more of mixing in sea-tangle, undaria pinnitafida, extra large capsule algae, sargassum, bulk kelp, yellow tang etc.
Thing, is placed in fermentation vat, then adds the EM bacterium solutions for accounting for gross weight 0.2%-0.5%, adds suitable quantity of water and keeps water content to exist
40-50%, after 60-65 DEG C of central temperature of holding is continuously fermented 15 days, drying and crushing crosses 150 mesh sieves and produces marine alga slag, standby.
It is preferred that, the fertile core in described Tower-type melt granulation double regulation control composite fertilizer is by the raw material system of following parts by weight
Into：500 parts of urea, 200 parts of ureaformaldehyde, 230 parts of MAP, 200 parts of potassium chloride, 60 parts of humic acid, 5 parts of alginic acid, sulfuric acid
3 parts of zinc, 3 parts of boric acid, 8 parts of marine alga slag, 2 parts of modified nano-titanium dioxide.
The modified nano-titanium dioxide is prepared by the following method：By nano titanium oxide and triethanolamine
Compare 1 according to weight:5 mixing, then mortar 1 hour in mortar is distributed to containing 5% coupling agent KH560's under high velocity agitation
In water body, pH to 8~9 is adjusted, continues to stir 30-45min, is put into ball milling 3h in ball mill, produces modified nano-titanium dioxide.
The particle diameter of the nano titanium oxide is 50-100nm.
The silylating reagent zeolite is to calcine natural zeolite 2 hours in 800 DEG C, is cooled to 5 times of weights of addition after room temperature
The 10% hydrochloric acid acidifying stirring reaction of amount 12 hours, centrifuges, the 5mol/L of 3 times of weight is then added to after solid washing
Sodium hydroxide solution in, be stirred at room temperature after 30min, filter, then solid deionized water rinsing to neutrality add solid
After being stirred 2 hours in the toluene of 10 times of weight, then thereto at 80 DEG C of addition 3- aminopropyl trimethoxysilanes, filtering is washed
Wash, silane-modifiedization zeolite is obtained after drying.
A kind of preparation method of Tower-type melt granulation double regulation control composite fertilizer, it comprises the following steps：
1) by one or more of mixtures in sea-tangle, undaria pinnitafida, extra large capsule algae, sargassum, bulk kelp, yellow tang etc., it is placed in
In fermentation vat, the EM bacterium solutions for accounting for gross weight 0.2%-0.5% are then added, suitable quantity of water is added and keeps water content in 40-50%,
After 60-65 DEG C of central temperature of holding is continuously fermented 15 days, drying and crushing crosses 150 mesh sieves and produces marine alga slag, standby；
2) nano titanium oxide and triethanolamine are compared 1 according to weight:5 mixing, grind 1 hour, Ran Hou in mortar
It is distributed under high-speed stirred in the water body containing 5% coupling agent KH560, adjusts pH to 8~9, is continued to stir 30-45min, be put into ball
Ball milling 3h in grinding machine, produces modified nano-titanium dioxide, standby；
3) molten state urea is made in accurate weigh in formula ratio urea, feeding fusion tank, then by formula ratio ureaformaldehyde, phosphorus
A sour ammonium, potassium chloride, humic acid, alginic acid, zinc sulfate, boric acid, marine alga slag, modified nano-titanium dioxide are mixed in blending tank
It is uniform and be preheated to 40~50 DEG C, then add and stir to form mixed slurry in molten state urea, then using granulation tower
Sprinkling pelleting technique is granulated, and fertilizer slug particle is made, standby；
4) by step 3) obtained by fertile slug particle be preheated to 55 DEG C, then by the first coating agent add coating machine in upper
State particle and carry out coating processing of sprinkling, a coated granule is obtained after drying；
5) by silylating reagent zeolite and peat soil according to 1:1 weight crosses 150 mesh sieves than well mixed grinding, is mixed
Powder is closed, it is standby；
6) by step 4) gained coated granule be preheated to 45 DEG C, then by second layer coating agent mixed powder add wrap
The secondary aluminum coated steel of face powder is carried out in film machine, is dried, packing obtains the compound fertilizer of the present invention.
The step 4) in first layer coating agent be chitosan and poly- (the 4-N- methacrylic acid aminobenzenes of salicyclic acid derivatives
Formic acid) equimolar ratio is mixed.
The treated marine alga slag of present invention addition is raw material, its rich in a variety of inorganic elements and sodium, potassium, iron, calcium,
The trace elements such as boron, molybdenum, iodine, and also containing auxins (i.e. indoles) compound, chtokinin compound and sweet
Reveal alcohol, collect phenol, and several amino acids, polysaccharide, fiber, aliphatic acid and natural plants growth regulator more, sent out by EM bacterium solutions
Also contain multiple beneficial microorganism after ferment processing, each composition synergy has facilitation to plant growth, can improve and make produce
Amount, improvement crop quality, with the ability for being obviously improved the resistance such as plant disease-resistant, drought resisting, cold-resistant, salt resistance alkali.In addition, this hair
The bright modified nano-titanium dioxide that also added adds the uniformity of granulation, is conducive to release and the crops of nutrient for raw material
Absorption, can also with second layer coating agent silylating reagent zeolite act synergistically, absorb soil in heavy metal ion,
The security of crop-planting can be lifted.Fertilizer of the present invention is handled using coating twice, the existing inorganic coating material of two kinds of coating agents
Quick release nutrient the characteristics of, the emergency of double regulation control has can be achieved in the characteristics of having the long-acting efficient of organic coated material again
The effect mutually helped.
The beneficial effects of the invention are as follows：1) rationally, nutrients release equalization stable, fertilizer efficiency is permanent, can for fertilizer formula of the present invention
Significantly improve the yield and quality of crops, compared with ordinary compound fertilizer, the obvious effect of increasing production of wheat and paddy rice.2) this hair
The bright marine alga slag for using particular procedure is raw material, rich in multiple nutritional components and a large amount of beneficial microbes, with being obviously improved
The ability of the resistance such as plant disease-resistant, drought resisting, cold-resistant, salt resistance alkali.3) modified nano-titanium dioxide that the present invention is added is added
The uniformity of granulation, is conducive to the release and the absorption of crops of nutrient, can also change with the silanization in second layer coating agent
Property zeolite synergy, absorb soil in heavy metal ion, the security of crop-planting can be lifted.4) present invention use the
One layer of coating agent is that chitosan is mixed with poly- (4-N- methacrylic acids aminobenzoic acid) the equimolar ratio of salicyclic acid derivatives,
The film forming and mechanical property of chitosan can be dramatically increased, makes fertilizer efficiency more permanent, is used in mixed way with first layer coating agent, makes fertilizer
Material is really achieved sustained release and releases combination with rush, improves utilization rate of fertilizer, is absorbed beneficial to crop, obvious effect of increasing production.
Embodiment
With reference to specific embodiment, the present invention is described in further detail.
Embodiment 1
A kind of Tower-type melt granulation double regulation control composite fertilizer, it is by fertile core, first layer coating agent and second layer coating agent
Composition；The fertile core：First layer coating agent：The mass ratio of second layer coating agent is 100：3:5；
The fertile core is made up of the raw material of following parts by weight：480 parts of urea, 150 parts of ureaformaldehyde, 210 parts of MAP,
180 parts of potassium chloride, 40 parts of humic acid, 4 parts of alginic acid, 1 part of zinc sulfate, 1 part of boric acid, 5 parts of marine alga slag, modified nano-titanium dioxide
1 part；
The first layer coating agent is chitosan and salicyclic acid derivatives poly- (4-N- methacrylic acids aminobenzoic acid) etc.
Mixed in molar ratio is made；
The second layer coating agent is silylating reagent zeolite, peat soil according to 1:1 weight is than composition；
The marine alga slag is one or more of mixing in sea-tangle, undaria pinnitafida, extra large capsule algae, sargassum, bulk kelp, yellow tang etc.
Thing, is placed in fermentation vat, then adds the EM bacterium solutions for accounting for gross weight 0.2%-0.5%, adds suitable quantity of water and keeps water content to exist
40-50%, after 60-65 DEG C of central temperature of holding is continuously fermented 15 days, drying and crushing crosses 150 mesh sieves and produces marine alga slag, standby.
The preparation method of above-mentioned Tower-type melt granulation double regulation control composite fertilizer, it comprises the following steps：
1) by one or more of mixtures in sea-tangle, undaria pinnitafida, extra large capsule algae, sargassum, bulk kelp, yellow tang etc., it is placed in
In fermentation vat, the EM bacterium solutions for accounting for gross weight 0.2%-0.5% are then added, suitable quantity of water is added and keeps water content in 40-50%,
After 60-65 DEG C of central temperature of holding is continuously fermented 15 days, drying and crushing crosses 150 mesh sieves and produces marine alga slag, standby；
2) nano titanium oxide and triethanolamine are compared 1 according to weight:5 mixing, grind 1 hour, Ran Hou in mortar
It is distributed under high-speed stirred in the water body containing 5% coupling agent KH560, adjusts pH to 8~9, is continued to stir 30-45min, be put into ball
Ball milling 3h in grinding machine, produces modified nano-titanium dioxide, standby；The particle diameter of the nano titanium oxide is 50-100nm.
3) molten state urea is made in accurate weigh in formula ratio urea, feeding fusion tank, then by formula ratio ureaformaldehyde, phosphorus
A sour ammonium, potassium chloride, humic acid, alginic acid, zinc sulfate, boric acid, marine alga slag, modified nano-titanium dioxide are mixed in blending tank
It is uniform and be preheated to 40~50 DEG C, then add and stir to form mixed slurry in molten state urea, then using granulation tower
Sprinkling pelleting technique is granulated, and fertilizer slug particle is made, standby；
4) by step 3) obtained by fertile slug particle be preheated to 55 DEG C, then by the first coating agent add coating machine in upper
State particle and carry out coating processing of sprinkling, a coated granule is obtained after drying；
5) by silylating reagent zeolite and peat soil according to 1:1 weight crosses 150 mesh sieves than well mixed grinding, is mixed
Powder is closed, it is standby；
6) by step 4) gained coated granule be preheated to 45 DEG C, then by second layer coating agent mixed powder add wrap
The secondary aluminum coated steel of face powder is carried out in film machine, is dried, packing obtains the compound fertilizer of the present invention.
Embodiment 2
A kind of Tower-type melt granulation double regulation control composite fertilizer, it is by fertile core, first layer coating agent and second layer coating agent
Composition；The fertile core：First layer coating agent：The mass ratio of second layer coating agent is 100：3:5；
The fertile core is made up of the raw material of following parts by weight：540 parts of urea, 250 parts of ureaformaldehyde, 250 parts of MAP,
220 parts of potassium chloride, 80 parts of humic acid, 6 parts of alginic acid, 5 parts of zinc sulfate, 5 parts of boric acid, 10 parts of marine alga slag, modified nano-silica
3 parts of titanium；
The first layer coating agent is chitosan and salicyclic acid derivatives poly- (4-N- methacrylic acids aminobenzoic acid) etc.
Mixed in molar ratio is made；
The second layer coating agent is silylating reagent zeolite, peat soil according to 1:1 weight is than composition；
The marine alga slag is one or more of mixing in sea-tangle, undaria pinnitafida, extra large capsule algae, sargassum, bulk kelp, yellow tang etc.
Thing, is placed in fermentation vat, then adds the EM bacterium solutions for accounting for gross weight 0.2%-0.5%, adds suitable quantity of water and keeps water content to exist
40-50%, after 60-65 DEG C of central temperature of holding is continuously fermented 15 days, drying and crushing crosses 150 mesh sieves and produces marine alga slag, standby.
The preparation method of above-mentioned Tower-type melt granulation double regulation control composite fertilizer, it comprises the following steps：
1) by one or more of mixtures in sea-tangle, undaria pinnitafida, extra large capsule algae, sargassum, bulk kelp, yellow tang etc., it is placed in
In fermentation vat, the EM bacterium solutions for accounting for gross weight 0.2%-0.5% are then added, suitable quantity of water is added and keeps water content in 40-50%,
After 60-65 DEG C of central temperature of holding is continuously fermented 15 days, drying and crushing crosses 150 mesh sieves and produces marine alga slag, standby；
2) nano titanium oxide and triethanolamine are compared 1 according to weight:5 mixing, grind 1 hour, Ran Hou in mortar
It is distributed under high-speed stirred in the water body containing 5% coupling agent KH560, adjusts pH to 8~9, is continued to stir 30-45min, be put into ball
Ball milling 3h in grinding machine, produces modified nano-titanium dioxide, standby；The particle diameter of the nano titanium oxide is 50-100nm.
3) molten state urea is made in accurate weigh in formula ratio urea, feeding fusion tank, then by formula ratio ureaformaldehyde, phosphorus
A sour ammonium, potassium chloride, humic acid, alginic acid, zinc sulfate, boric acid, marine alga slag, modified nano-titanium dioxide are mixed in blending tank
It is uniform and be preheated to 40~50 DEG C, then add and stir to form mixed slurry in molten state urea, then using granulation tower
Sprinkling pelleting technique is granulated, and fertilizer slug particle is made, standby；
4) by step 3) obtained by fertile slug particle be preheated to 55 DEG C, then by the first coating agent add coating machine in upper
State particle and carry out coating processing of sprinkling, a coated granule is obtained after drying；
5) by silylating reagent zeolite and peat soil according to 1:1 weight crosses 150 mesh sieves than well mixed grinding, is mixed
Powder is closed, it is standby；
6) by step 4) gained coated granule be preheated to 45 DEG C, then by second layer coating agent mixed powder add wrap
The secondary aluminum coated steel of face powder is carried out in film machine, is dried, packing obtains the compound fertilizer of the present invention.
Embodiment 3
A kind of Tower-type melt granulation double regulation control composite fertilizer, it is by fertile core, first layer coating agent and second layer coating agent
Composition；The fertile core：First layer coating agent：The mass ratio of second layer coating agent is 100：3：5；
The fertile core is made up of the raw material of following parts by weight：500 parts of urea, 200 parts of ureaformaldehyde, 230 parts of MAP,
200 parts of potassium chloride, 60 parts of humic acid, 5 parts of alginic acid, 3 parts of zinc sulfate, 3 parts of boric acid, 8 parts of marine alga slag, modified nano-titanium dioxide
2 parts.
The first layer coating agent is chitosan and salicyclic acid derivatives poly- (4-N- methacrylic acids aminobenzoic acid) etc.
Mixed in molar ratio is made；
The second layer coating agent is silylating reagent zeolite, peat soil according to 1:1 weight is than composition；
The marine alga slag is one or more of mixing in sea-tangle, undaria pinnitafida, extra large capsule algae, sargassum, bulk kelp, yellow tang etc.
Thing, is placed in fermentation vat, then adds the EM bacterium solutions for accounting for gross weight 0.2%-0.5%, adds suitable quantity of water and keeps water content to exist
40-50%, after 60-65 DEG C of central temperature of holding is continuously fermented 15 days, drying and crushing crosses 150 mesh sieves and produces marine alga slag, standby.
The preparation method of above-mentioned Tower-type melt granulation double regulation control composite fertilizer, it comprises the following steps：
1) by one or more of mixtures in sea-tangle, undaria pinnitafida, extra large capsule algae, sargassum, bulk kelp, yellow tang etc., it is placed in
In fermentation vat, the EM bacterium solutions for accounting for gross weight 0.2%-0.5% are then added, suitable quantity of water is added and keeps water content in 40-50%,
After 60-65 DEG C of central temperature of holding is continuously fermented 15 days, drying and crushing crosses 150 mesh sieves and produces marine alga slag, standby；
2) nano titanium oxide and triethanolamine are compared 1 according to weight:5 mixing, grind 1 hour, Ran Hou in mortar
It is distributed under high-speed stirred in the water body containing 5% coupling agent KH560, adjusts pH to 8~9, is continued to stir 30-45min, be put into ball
Ball milling 3h in grinding machine, produces modified nano-titanium dioxide, standby；The particle diameter of the nano titanium oxide is 50-100nm.
3) molten state urea is made in accurate weigh in formula ratio urea, feeding fusion tank, then by formula ratio ureaformaldehyde, phosphorus
A sour ammonium, potassium chloride, humic acid, alginic acid, zinc sulfate, boric acid, marine alga slag, modified nano-titanium dioxide are mixed in blending tank
It is uniform and be preheated to 40~50 DEG C, then add and stir to form mixed slurry in molten state urea, then using granulation tower
Sprinkling pelleting technique is granulated, and fertilizer slug particle is made, standby；
4) by step 3) obtained by fertile slug particle be preheated to 55 DEG C, then by the first coating agent add coating machine in upper
State particle and carry out coating processing of sprinkling, a coated granule is obtained after drying；
5) by silylating reagent zeolite and peat soil according to 1:1 weight crosses 150 mesh sieves than well mixed grinding, is mixed
Powder is closed, it is standby；
6) by step 4) gained coated granule be preheated to 45 DEG C, then by second layer coating agent mixed powder add wrap
The secondary aluminum coated steel of face powder is carried out in film machine, is dried, packing obtains the compound fertilizer of the present invention.
Fertilizer efficiency application test
1st, wheat planting manure trial
A piece of experimental field of wheat, which is chosen, in Jilin Province Fuyu City planting base carries out effect of fertilizer application test.It is small for trying
Wheat variety is the capital winter No. 6, and sowing mid-September, ditch is broadcast, and keep a full stand of seedings 400 plants/m2, line-spacing 0.3m, the long 4~5m of row.Second Year is by the end of July
Maturation harvest.Experimental plot be divided into four pieces of formed objects and respectively numbering be the 1,2,3,4, the 1st group be control group, using commercially available
Common compound fertilizer material, its N-P-K is 28-15-12, total nutrient >=45%.2-4 groups apply fertilizer made from embodiment 1-3 respectively
Material.All packet fertilization times and fertilizer amount are identical, and fertilization time disposably applies to make base fertilizer prior to seeding, other cultivations
Control measures are with local general crop field wheat.Mature period is harvested, and observes the yield and prevention and control of plant diseases, pest control situation of wheat, experiment knot
Fruit is shown in Table 1.
The experimental field of wheat fertilizer test of table 1 increases production result
| Group | Per mu yield (kg) | Relatively control volume increase/% | Pest and disease damage frequency |
| 1st group | 398 | -- | 5 |
| 2nd group | 455 | 14.3 | 2 |
| 3rd group | 469 | 17.8 | 1 |
| 4th group | 460 | 15.6 | 1 |
It can be drawn by above-mentioned experimental result, during fertilizer produced by the present invention is disposably manured into soil as base manure, no
Topdressed again, fertilizer efficiency is permanent, and compared with control group, the effect of increasing production of wheat is fairly obvious, and pest and disease damage frequency also shows
Write and reduce.This is due to that fertilizer formula of the invention is reasonable, and nutrients release equalization stable, fertilizer efficiency is permanent, is remarkably improved farming
The yield and quality of thing, while the marine alga slag in fertilizer material, rich in multiple nutritional components and a large amount of beneficial microbes, has
The ability of the resistance such as plant disease-resistant, drought resisting, cold-resistant, salt resistance alkali is obviously improved, the quality of soil is enhanced, promotes crops
Absorption to nutrient, improves utilization rate of fertilizer, reduces nutrient loss.Further, since the use of the soil conditioner, makes soil
With the outstanding dual adsorption capacity of organic pollution and heavy metal contaminants, the danger of wheat residual heavy metal is reduced, is carried
The security of soil plantation is risen.
2nd, increasing production of rice effect test
The paddy rice farmland for choosing 4 pieces of same sizes in Changchun City planting base is used as experimental field, every piece
For 1 mu, wherein 3 pieces of farmlands are respectively using the fertilizer obtained by 1-3 of the embodiment of the present invention, another 1 piece of farmland uses commercially available common compound
As a control group, its N-P-K is 28-15-12, total nutrient >=45% to fertilizer.The yield and the prevention and control of plant diseases, pest control of paddy rice are observed after 1 year
Situation, experimental result is shown in Table 2.
The rice yield of table 2 and pest and disease damage a situation arises Statistical Comparison
| Paddy rice per mu yield/kg | Pest and disease damage frequency/year | |
| Embodiment 1 | 732.6 | 2 |
| Embodiment 2 | 740.2 | 1 |
| Embodiment 3 | 745.9 | 1 |
| Commercially available compound fertilizer | 665.8 | 5 |
The grain of rice gold after the fertilizer applied obtained by 1-3 of the embodiment of the present invention, maturation is can be seen that from the above-mentioned data of table 2
Yellow full, yield increases, compared with the farmland of unused product of the present invention, and every mu is averagely increased production 73.8 kilograms, and uses this hair
Pest and disease damage after bright product in farmland also greatly reduces, and reduces the usage amount of agricultural chemicals, improves the security of food.In addition,
Fertilizer nutrient of the present invention is balanced, and nutrient is sufficient, meet added in the growth needs of crops, raw material by fermentation after marine alga
Slag is not only nutrient of the growth there is provided abundance of paddy rice, and multiple beneficial microorganism is also contained after EM bacterium solution fermentation process,
Each composition synergy has facilitation to plant growth, can improve crop yield, improve crop quality, with being obviously improved plant
The ability of the resistance such as thing is disease-resistant, drought resisting, cold-resistant, salt resistance alkali.In addition, it is original that the present invention, which also added modified nano-titanium dioxide,
Material, adds the uniformity of granulation, is conducive to the release and the absorptions of crops of nutrient, can also with second layer coating agent
Silylating reagent zeolite acts synergistically, and absorbs the heavy metal ion in soil, can lift the security of crop-planting.Fertilizer of the invention
Material is handled using coating twice, the characteristics of the quick release nutrient of the existing inorganic coating material of two kinds of coating agents, again organic bag
The characteristics of long-acting efficient of membrane material, the effect that the emergency of double regulation control is mutually helped can be achieved.
Claims (7)
1. a kind of Tower-type melt granulation double regulation control composite fertilizer, it is characterised in that it is by fertile core, first layer coating agent and second
Layer coating agent composition；The fertile core：First layer coating agent：The mass ratio of second layer coating agent is 100：3:5；
The fertile core is made up of the raw material of following parts by weight：480-540 parts of urea, 150-250 parts of ureaformaldehyde, MAP
210-250 parts, 180-220 parts of potassium chloride, 40-80 parts of humic acid, 4-6 parts of alginic acid, 1-5 parts of zinc sulfate, 1-5 parts of boric acid, sea
5-10 parts of algae-residue, 1-3 parts of modified nano-titanium dioxide；
The first layer coating agent is chitosan and poly- (the 4-N- methacrylic acids aminobenzoic acid) equimolar of salicyclic acid derivatives
Than being mixed；
The second layer coating agent is silylating reagent zeolite, peat soil according to 1:1 weight is than composition；
The marine alga slag is one or more of mixtures in sea-tangle, undaria pinnitafida, extra large capsule algae, sargassum, bulk kelp, yellow tang etc.,
It is placed in fermentation vat, then adds the EM bacterium solutions for accounting for gross weight 0.2%-0.5%, adds suitable quantity of water and keep water content in 40-
50%, after 60-65 DEG C of central temperature of holding is continuously fermented 15 days, drying and crushing crosses 150 mesh sieves and produces marine alga slag, standby.
2. Tower-type melt granulation double regulation control composite fertilizer according to claim 1, it is characterised in that the fertile core be by with
The raw material of lower parts by weight is made：500 parts of urea, 200 parts of ureaformaldehyde, 230 parts of MAP, 200 parts of potassium chloride, humic acid 60
Part, 5 parts of alginic acid, 3 parts of zinc sulfate, 3 parts of boric acid, 8 parts of marine alga slag, 2 parts of modified nano-titanium dioxide.
3. Tower-type melt granulation double regulation control composite fertilizer according to claim 1 or 2, it is characterised in that the modification is received
Rice titanium dioxide is prepared by the following method：Nano titanium oxide and triethanolamine are compared 1 according to weight:5 mixing,
Mortar 1 hour in mortar, is then distributed in the water body containing 5% coupling agent KH560 under high velocity agitation, and regulation pH to 8~
9, continue to stir 30-45min, be put into ball milling 3h in ball mill, produce modified nano-titanium dioxide.
4. Tower-type melt granulation double regulation control composite fertilizer according to claim 3, it is characterised in that the nanometer titanium dioxide
The particle diameter of titanium is 50-100nm.
5. Tower-type melt granulation double regulation control composite fertilizer according to claim 1 or 2, it is characterised in that the silanization
Modified zeolite is to calcine natural zeolite 2 hours in 800 DEG C, is cooled to the 10% hydrochloric acid acidifying that 5 times of weight are added after room temperature
Stirring reaction 12 hours, is centrifuged, and is then added to after solid washing in the 5mol/L of 3 times of weight sodium hydroxide solution, room
After temperature stirring 30min, then filtering, solid deionized water rinsing to neutrality adds solid in the toluene of 10 times of weight, then
Add after being stirred 2 hours at 80 DEG C of 3- aminopropyl trimethoxysilanes, filter thereto, washing obtains silane-modified after drying
Change zeolite.
6. a kind of preparation method of the Tower-type melt granulation double regulation control composite fertilizer any one of claim 1-5, it is special
Levy and be, it comprises the following steps：
1) by one or more of mixtures in sea-tangle, undaria pinnitafida, extra large capsule algae, sargassum, bulk kelp, yellow tang etc., it is placed in fermentation
Chi Zhong, then adds the EM bacterium solutions for accounting for gross weight 0.2%-0.5%, adds suitable quantity of water and keeps water content in 40-50%, keeps
After 60-65 DEG C of central temperature is continuously fermented 15 days, drying and crushing crosses 150 mesh sieves and produces marine alga slag, standby；
2) nano titanium oxide and triethanolamine are compared 1 according to weight:5 mixing, grind 1 hour in mortar, then at a high speed
It is distributed under stirring in the water body containing 5% coupling agent KH560, adjusts pH to 8~9, is continued to stir 30-45min, be put into ball mill
Middle ball milling 3h, produces modified nano-titanium dioxide, standby；
3) molten state urea is made in accurate weigh in formula ratio urea, feeding fusion tank, then by formula ratio ureaformaldehyde, phosphoric acid one
Ammonium, potassium chloride, humic acid, alginic acid, zinc sulfate, boric acid, marine alga slag, modified nano-titanium dioxide are well mixed in blending tank
And 40~50 DEG C are preheated to, then add and stir to form mixed slurry in molten state urea, then sprayed using granulation tower
Prilling is granulated, and fertilizer slug particle is made, standby；
4) by step 3) obtained by fertile slug particle be preheated to 55 DEG C, then by the first coating agent add coating machine in above-mentioned
Grain carries out coating processing of sprinkling, and a coated granule is obtained after drying；
5) by silylating reagent zeolite and peat soil according to 1:1 weight crosses 150 mesh sieves than well mixed grinding, obtains mixed powder
Material, it is standby；
6) by step 4) gained coated granule be preheated to 45 DEG C, then by second layer coating agent mixed powder add coating machine
It is middle to carry out the secondary aluminum coated steel of face powder, dry, packing obtains the compound fertilizer of the present invention.
7. the preparation method of Tower-type melt granulation double regulation control composite fertilizer according to claim 6, it is characterised in that described
Step 4) in first layer coating agent be chitosan and poly- (the 4-N- methacrylic acids aminobenzoic acid) equimolar of salicyclic acid derivatives
Than being mixed.
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| CN110156517A (en) * | 2019-06-03 | 2019-08-23 | 史丹利农业集团股份有限公司 | One cultivates peanut Special slow release fertilizer and preparation method thereof |
| CN110436992A (en) * | 2019-07-30 | 2019-11-12 | 拉多美（宁陵）化肥有限公司 | A kind of humic acid potassium efficient phosphorous fertilizer and preparation method |
| CN110437014A (en) * | 2019-08-27 | 2019-11-12 | 拉多美（宁陵）化肥有限公司 | A kind of humic acid potassium Selenium-rich composite fertilizer and preparation method |
| CN112409092A (en) * | 2020-10-30 | 2021-02-26 | 漳州职业技术学院 | Preparation method of special slow-release fertilizer for soil improvement |
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| CN110156517A (en) * | 2019-06-03 | 2019-08-23 | 史丹利农业集团股份有限公司 | One cultivates peanut Special slow release fertilizer and preparation method thereof |
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| CN112409061A (en) * | 2020-10-30 | 2021-02-26 | 漳州职业技术学院 | Efficient organic fertilizer preparation device and process thereof |
| EP4206166A1 (en) * | 2021-12-31 | 2023-07-05 | SABIC Global Technologies, B.V. | Nano bio-carrier with micronutrients coated on chemical fertilizers |
| EP4206167A1 (en) * | 2021-12-31 | 2023-07-05 | SABIC Global Technologies, B.V. | Nano bio-carrier with micronutrients coated on chemical fertilizers |
| EP4206168A1 (en) * | 2021-12-31 | 2023-07-05 | SABIC Global Technologies B.V. | Nano bio-carrier with plant additives coated on chemical fertilizers |
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