CN108069786A - A kind of high-tower granulation fulvic acid type enhanced fertilizer and its production method - Google Patents
A kind of high-tower granulation fulvic acid type enhanced fertilizer and its production method Download PDFInfo
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- CN108069786A CN108069786A CN201810165027.4A CN201810165027A CN108069786A CN 108069786 A CN108069786 A CN 108069786A CN 201810165027 A CN201810165027 A CN 201810165027A CN 108069786 A CN108069786 A CN 108069786A
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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
- C05G3/80—Soil conditioners
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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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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
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Abstract
A kind of high-tower granulation fulvic acid type enhanced fertilizer and its production method are as made from the raw material of following parts by weight：Particle cores fertilizer 100 parts, 24 parts of coating agent.The high-tower granulation fulvic acid type enhanced fertilizer of the present invention contains the elements such as abundant nitrogen, phosphorus, potassium; it on the one hand can be with activating soil; on the other hand the loss of ammonium nitrogen is reduced, the displacement distance of enhancing phosphorus in the soil promotes absorption of the root system to phosphorus; storage part potassium ion can also be absorbed; plant is promoted to absorb nitrogen, phosphorus, potassium nutrition, adjusts Nutrient Absorption of the crops in growth course, fertilizer efficiency is good; utilization rate of fertilizer is high, enhances fertilizer.
Description
Technical field
The invention belongs to technical field of fertilizers, and in particular to a kind of high-tower granulation fulvic acid type enhanced fertilizer and its producer
Method.
Background technology
In recent years, high tower compound fertilizer material is rapidly developed, but high tower urea-based fertilizer be produced using urea as carrier it is compound
Fertilizer, does not change the performance of urea in process of production, and urea category small molecule organic compound, molten with molecular state in water
Solution easily generates leaching loss, leakage, causes pollution of area source, and the nitrogen in urea cannot be absorbed by crops in itself, need to convert
Utilization can be just absorbed by crops after into ammonium nitrogen or nitrate nitrogen, then in the nitrification and denitrification conversion process of urea again easily
The volatilization of nitrogen is caused to generate loss.The present invention develops fulvic acid type enhanced fertilizer on high tower process units, and to its into
The processing of row ureaformaldehyde coating can slow down the rate of release of its available nutrient, improve chemical fertilizer utilization rate, it is dirty to mitigate chemical fertilizer face source
Dye, and coated fertilizer ureaformaldehyde can also provide effective nutrients of nitrogen element for plant in the soil.
Fulvic acid is mainly the complex mixture of a kind of macromolecular fragrant-aliphatic series hydroxycarboxylic acid containing active function groups,
Its with molecular weight is small, active gene is high, improve soil, improve ground temperature, promotes well developed root system, effectively adjust soil acidity or alkalinity,
Solve the unique effects of soil hardening etc..Fulvic acid is used cooperatively with other inorganic fertilizers (such as nitrogen, phosphorus, potassium), can be solid
Nitrogen, phosphorus decomposing, sustained release potassium, promote active ingredient to convert, are absorbed by crops utilization as early as possible, improve various utilization rate of active components.
The content of the invention
The present invention provides the high-tower granulation fulvic acid type enhanced fertilizers that a kind of fertilizer efficiency is good, utilization rate of fertilizer is high.
The present invention also provides the production methods of the high-tower granulation fulvic acid type enhanced fertilizer.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of high-tower granulation fulvic acid type enhanced fertilizer, is as made from the raw material of following parts by weight：Particle cores fertilizer 100
Part, 2-4 parts of coating agent；
The particle cores fertilizer is as made from the raw material of following parts by weight：100 parts of urea, 30-50 parts of fulvic acid, ammonium nitrate
20-30 parts, 10-20 parts of monoammonium phosphate, 10-20 parts of potassium chloride, 10-15 parts of potassium dihydrogen phosphate, 3-5 parts of ammonium molybdate, magnesium sulfate 4-6
Part, 1 part of zinc sulfate, 1 part of manganese sulfate, 1 part of copper sulphate, 0.5-1.5 parts of dispersant, gamma-polyglutamic acid/chitosan oligosaccharide hydrogel 0.3-
0.5 part；
The coating agent is as made from the raw material of following parts by weight：20-30 parts of urea, 28-30 parts of formaldehyde, pi-allyl gather
2-4 parts of ethylene glycol, 1-1.4 parts of diethylene triamine pentacetic acid (DTPA).
Described, gamma-polyglutamic acid/chitosan oligosaccharide hydrogel is as made from following methods：By gamma-polyglutamic acid, transparent
Matter acid and chitosan oligosaccharide are added in water, and 85 DEG C are heated to being completely dissolved, and are cooled to 26 DEG C, add in n-hydroxysuccinimide room temperature not
Disconnected stirring crosslinking reaction 5min, obtains gamma-polyglutamic acid/chitosan oligosaccharide hydrogel.
Described, gamma-polyglutamic acid, hyaluronic acid, chitosan oligosaccharide, the amount ratio of n-hydroxysuccinimide and water are 5-
7g：0.3-0.5g：0.4-0.6g：2.5-3.5g：100mL.
Described, dispersant is according to 1 by methylpropene sodium sulfonate and poly glycol monomethyl ether：1-1.5 weight ratio system
.
A kind of production method of high-tower granulation fulvic acid type enhanced fertilizer, is as made from following steps：
1) preparation of particle cores fertilizer：By Urea to 120 DEG C of -140 DEG C of meltings, urea melting liquid is obtained；By monoammonium phosphate,
Potassium dihydrogen phosphate adds to urea melting liquid, is uniformly mixed；Again by fulvic acid, potassium chloride, ammonium molybdate, magnesium sulfate, zinc sulfate, sulfuric acid
Manganese, copper sulphate, dispersant and gamma-polyglutamic acid/chitosan oligosaccharide hydrogel add to wherein, are uniformly mixed, obtain slurry；By slurry through making
Grain device is input to granulation tower and carries out high-tower granulation, obtains granular fertilizer；Granular fertilizer is cold to level-one cooler and two level through conveying equipment
But machine carries out being cooled to 30-40 DEG C of temperature；Vibration, screening obtain the particle cores fertilizer that grain size is 2-4mm；
2) preparation of coating agent：Formaldehyde is added in reactive tank, the urea of 50% weight is added in while stirring, adds alkene
Propyl polyethylene glycol and diethylene triamine pentacetic acid (DTPA), sodium hydroxide adjust pH value 7.0, are warming up to 9 DEG C of 0-110 DEG C of reaction 30-
40min；The urea of remaining 50% weight is added, phosphorus acid for adjusting pH value reacts 0.5h-1.5h for 4,60- DEG C 70 DEG C, must wrap
Film；
3) particle cores fertilizer is placed in coating machine, coating agent carries out coating processing to particle cores fertilizer spraying, obtains high-tower granulation
Fulvic acid type enhanced fertilizer.
Beneficial effects of the present invention：
It, on the one hand can be with 1. the high-tower granulation fulvic acid type enhanced fertilizer of the present invention contains the elements such as abundant nitrogen, phosphorus, potassium
Activating soil, on the other hand reduces the loss of ammonium nitrogen, and the displacement distance of enhancing phosphorus in the soil promotes suction of the root system to phosphorus
It receives, storage part potassium ion can also be absorbed, plant is promoted to absorb nitrogen, phosphorus, potassium nutrition, adjust crops and growing
The Nutrient Absorption of process, fertilizer efficiency is good, and utilization rate of fertilizer is high, enhances fertilizer.
2. the dispersant of the present invention can promote material dispersion uniform, balanced stabilization nutrient unit is formed, ensures fertilizer battalion
Form point balanced and stablize.Gamma-polyglutamic acid/chitosan oligosaccharide water-setting adhesivity of the present invention is larger, can improve the network of fulvic acid
Conjunction and adsorption ability, also have effects that certain retain water and nutrients, are obviously improved the activity and adsorbance of particle cores fertilizer.Pass through
Increase allyl polyglycol and diethylene triamine pentacetic acid (DTPA) in coating agent, significantly improve the consistency of coating, gained coating
Mechanical property it is good, dissolution rate is high.
3. the production method of the present invention is simple and practicable, operating cost is low, and fertilizer efficiency protrudes, before having a vast market application
Scape.
Specific embodiment
Following embodiment facilitates a better understanding of the present invention, but does not limit the present invention.Experiment in following embodiments
Method is conventional method unless otherwise specified.
Embodiment 1
A kind of high-tower granulation fulvic acid type enhanced fertilizer, is as made from the raw material of following parts by weight：Particle cores fertilizer 100
Part, 3 parts of coating agent；
The particle cores fertilizer is as made from the raw material of following parts by weight：100 parts of urea, 40 parts of fulvic acid, ammonium nitrate 25
Part, 15 parts of monoammonium phosphate, 15 parts of potassium chloride, 13 parts of potassium dihydrogen phosphate, 4 parts of ammonium molybdate, 5 parts of magnesium sulfate, 1 part of zinc sulfate, sulfuric acid
1 part of manganese, 1 part of copper sulphate, 1 part of dispersant, gamma-polyglutamic acid/0.4 part of chitosan oligosaccharide hydrogel；
The coating agent is as made from the raw material of following parts by weight：25 parts of urea, 29 parts of formaldehyde, allyl polyglycol
3 parts, 1.2 parts of diethylene triamine pentacetic acid (DTPA).
Described, gamma-polyglutamic acid/chitosan oligosaccharide hydrogel is as made from following methods：By gamma-polyglutamic acid, transparent
Matter acid and chitosan oligosaccharide are added in water, and 85 DEG C are heated to being completely dissolved, and are cooled to 26 DEG C, add in n-hydroxysuccinimide room temperature not
Disconnected stirring crosslinking reaction 5min, obtains gamma-polyglutamic acid/chitosan oligosaccharide hydrogel.
Described, gamma-polyglutamic acid, hyaluronic acid, chitosan oligosaccharide, the amount ratio of n-hydroxysuccinimide and water are 6g：
0.4g：0.5g：3g：100mL.
Described, dispersant is according to 1 by methylpropene sodium sulfonate and poly glycol monomethyl ether：1.3 weight ratio is made
's.
A kind of production method of high-tower granulation fulvic acid type enhanced fertilizer, is as made from following steps：
1) preparation of particle cores fertilizer：By Urea to 140 DEG C of meltings, urea melting liquid is obtained；By monoammonium phosphate, di(2-ethylhexyl)phosphate
Hydrogen potassium adds to urea melting liquid, is uniformly mixed；Again by fulvic acid, potassium chloride, ammonium molybdate, magnesium sulfate, zinc sulfate, manganese sulfate, sulphur
Sour copper, dispersant and gamma-polyglutamic acid/chitosan oligosaccharide hydrogel add to wherein, are uniformly mixed, obtain slurry；By slurry through nodulizer
It is input to granulation tower and carries out high-tower granulation, obtain granular fertilizer；By granular fertilizer through conveying equipment to level-one cooler and two level cooler
It carries out being cooled to 30 DEG C of temperature；Vibration, screening obtain the particle cores fertilizer that grain size is 2-4mm；
2) preparation of coating agent：Formaldehyde is added in reactive tank, the urea of 50% weight is added in while stirring, adds alkene
Propyl polyethylene glycol and diethylene triamine pentacetic acid (DTPA), sodium hydroxide adjust pH value 7.0, are warming up to 100 DEG C of reaction 35min；Again plus
Enter the urea of remaining 50% weight, phosphorus acid for adjusting pH value is 4,65 DEG C of reaction 1h, obtains coating agent；
3) particle cores fertilizer is placed in coating machine, coating agent carries out coating processing to particle cores fertilizer spraying, obtains high-tower granulation
Fulvic acid type enhanced fertilizer.
Embodiment 2
A kind of high-tower granulation fulvic acid type enhanced fertilizer, is as made from the raw material of following parts by weight：Particle cores fertilizer 100
Part, 4 parts of coating agent；
The particle cores fertilizer is as made from the raw material of following parts by weight：100 parts of urea, 30 parts of fulvic acid, ammonium nitrate 30
Part, 20 parts of monoammonium phosphate, 10 parts of potassium chloride, 15 parts of potassium dihydrogen phosphate, 5 parts of ammonium molybdate, 6 parts of magnesium sulfate, 1 part of zinc sulfate, sulfuric acid
1 part of manganese, 1 part of copper sulphate, 0.5 part of dispersant, gamma-polyglutamic acid/0.5 part of chitosan oligosaccharide hydrogel；
The coating agent is as made from the raw material of following parts by weight：2 parts of urea, 30 parts of formaldehyde, allyl polyglycol 4
Part, 1 part of diethylene triamine pentacetic acid (DTPA).
Described, gamma-polyglutamic acid/chitosan oligosaccharide hydrogel is as made from following methods：By gamma-polyglutamic acid, transparent
Matter acid and chitosan oligosaccharide are added in water, and 85 DEG C are heated to being completely dissolved, and are cooled to 26 DEG C, add in n-hydroxysuccinimide room temperature not
Disconnected stirring crosslinking reaction 5min, obtains gamma-polyglutamic acid/chitosan oligosaccharide hydrogel.
Described, gamma-polyglutamic acid, hyaluronic acid, chitosan oligosaccharide, the amount ratio of n-hydroxysuccinimide and water are 7g：
0.5g：0.4g：2.5g：100mL.
Described, dispersant is according to 1 by methylpropene sodium sulfonate and poly glycol monomethyl ether：1.5 weight ratio is made
's.
A kind of production method of high-tower granulation fulvic acid type enhanced fertilizer, is as made from following steps：
1) preparation of particle cores fertilizer：By Urea to 130 DEG C of meltings, urea melting liquid is obtained；By monoammonium phosphate, di(2-ethylhexyl)phosphate
Hydrogen potassium adds to urea melting liquid, is uniformly mixed；Again by fulvic acid, potassium chloride, ammonium molybdate, magnesium sulfate, zinc sulfate, manganese sulfate, sulphur
Sour copper, dispersant and gamma-polyglutamic acid/chitosan oligosaccharide hydrogel add to wherein, are uniformly mixed, obtain slurry；By slurry through nodulizer
It is input to granulation tower and carries out high-tower granulation, obtain granular fertilizer；By granular fertilizer through conveying equipment to level-one cooler and two level cooler
It carries out being cooled to 35 DEG C of temperature；Vibration, screening obtain the particle cores fertilizer that grain size is 2-4mm；
2) preparation of coating agent：Formaldehyde is added in reactive tank, the urea of 50% weight is added in while stirring, adds alkene
Propyl polyethylene glycol and diethylene triamine pentacetic acid (DTPA), sodium hydroxide adjust pH value 7.0, are warming up to 90 DEG C of reaction 40min；It adds
The urea of remaining 50% weight, phosphorus acid for adjusting pH value are 4,60 DEG C of reaction 1.5h, obtain coating agent；
3) particle cores fertilizer is placed in coating machine, coating agent carries out coating processing to particle cores fertilizer spraying, obtains high-tower granulation
Fulvic acid type enhanced fertilizer.
Embodiment 3
A kind of high-tower granulation fulvic acid type enhanced fertilizer, is as made from the raw material of following parts by weight：Particle cores fertilizer 100
Part, 2 parts of coating agent；
The particle cores fertilizer is as made from the raw material of following parts by weight：100 parts of urea, 50 parts of fulvic acid, ammonium nitrate 20
Part, 10 parts of monoammonium phosphate, 20 parts of potassium chloride, 10 parts of potassium dihydrogen phosphate, 3 parts of ammonium molybdate, 4 parts of magnesium sulfate, 1 part of zinc sulfate, sulfuric acid
1 part of manganese, 1 part of copper sulphate, 1.5 parts of dispersant, gamma-polyglutamic acid/0.3 part of chitosan oligosaccharide hydrogel；
The coating agent is as made from the raw material of following parts by weight：30 parts of urea, 28 parts of formaldehyde, allyl polyglycol
2 parts, 1.4 parts of diethylene triamine pentacetic acid (DTPA).
Described, gamma-polyglutamic acid/chitosan oligosaccharide hydrogel is as made from following methods：By gamma-polyglutamic acid, transparent
Matter acid and chitosan oligosaccharide are added in water, and 85 DEG C are heated to being completely dissolved, and are cooled to 26 DEG C, add in n-hydroxysuccinimide room temperature not
Disconnected stirring crosslinking reaction 5min, obtains gamma-polyglutamic acid/chitosan oligosaccharide hydrogel.
Described, gamma-polyglutamic acid, hyaluronic acid, chitosan oligosaccharide, the amount ratio of n-hydroxysuccinimide and water are 5g：
0.3g：0.6g：3.5g：100mL.
Described, dispersant is according to 1 by methylpropene sodium sulfonate and poly glycol monomethyl ether：Made from 1 weight ratio.
A kind of production method of high-tower granulation fulvic acid type enhanced fertilizer, is as made from following steps：
1) preparation of particle cores fertilizer：By Urea to 120 DEG C of meltings, urea melting liquid is obtained；By monoammonium phosphate, di(2-ethylhexyl)phosphate
Hydrogen potassium adds to urea melting liquid, is uniformly mixed；Again by fulvic acid, potassium chloride, ammonium molybdate, magnesium sulfate, zinc sulfate, manganese sulfate, sulphur
Sour copper, dispersant and gamma-polyglutamic acid/chitosan oligosaccharide hydrogel add to wherein, are uniformly mixed, obtain slurry；By slurry through nodulizer
It is input to granulation tower and carries out high-tower granulation, obtain granular fertilizer；By granular fertilizer through conveying equipment to level-one cooler and two level cooler
It carries out being cooled to 40 DEG C of temperature；Vibration, screening obtain the particle cores fertilizer that grain size is 2-4mm；
2) preparation of coating agent：Formaldehyde is added in reactive tank, the urea of 50% weight is added in while stirring, adds alkene
Propyl polyethylene glycol and diethylene triamine pentacetic acid (DTPA), sodium hydroxide adjust pH value 7.0, are warming up to 110 DEG C of reaction 30min；Again plus
Enter the urea of remaining 50% weight, phosphorus acid for adjusting pH value is 4,70 DEG C of reaction 0.5h, obtains coating agent；
3) particle cores fertilizer is placed in coating machine, coating agent carries out coating processing to particle cores fertilizer spraying, obtains high-tower granulation
Fulvic acid type enhanced fertilizer.
Comparative example 1
A kind of high-tower granulation fulvic acid type enhanced fertilizer, is as made from the raw material of following parts by weight：Particle cores fertilizer 100
Part, 3 parts of coating agent；
The particle cores fertilizer is as made from the raw material of following parts by weight：100 parts of urea, 40 parts of fulvic acid, ammonium nitrate 25
Part, 15 parts of monoammonium phosphate, 15 parts of potassium chloride, 13 parts of potassium dihydrogen phosphate, 4 parts of ammonium molybdate, 5 parts of magnesium sulfate, 1 part of zinc sulfate, sulfuric acid
1 part of manganese, 1 part of copper sulphate, 1 part of dispersant；
The coating agent is as made from the raw material of following parts by weight：25 parts of urea, 29 parts of formaldehyde, allyl polyglycol
3 parts, 1.2 parts of diethylene triamine pentacetic acid (DTPA).
Remaining is the same as embodiment 1.
Comparative example 2
A kind of high-tower granulation fulvic acid type enhanced fertilizer, is as made from the raw material of following parts by weight：Particle cores fertilizer 100
Part, 3 parts of coating agent；
The particle cores fertilizer is as made from the raw material of following parts by weight：100 parts of urea, 40 parts of fulvic acid, ammonium nitrate 25
Part, 15 parts of monoammonium phosphate, 15 parts of potassium chloride, 13 parts of potassium dihydrogen phosphate, 4 parts of ammonium molybdate, 5 parts of magnesium sulfate, 1 part of zinc sulfate, sulfuric acid
1 part of manganese, 1 part of copper sulphate, gamma-polyglutamic acid/0.4 part of chitosan oligosaccharide hydrogel；
The coating agent is as made from the raw material of following parts by weight：25 parts of urea, 29 parts of formaldehyde, allyl polyglycol
3 parts, 1.2 parts of diethylene triamine pentacetic acid (DTPA).
Remaining is the same as embodiment 1.
Comparative example 3
A kind of high-tower granulation fulvic acid type enhanced fertilizer, is as made from the raw material of following parts by weight：Particle cores fertilizer 100
Part, 3 parts of coating agent；
The particle cores fertilizer is as made from the raw material of following parts by weight：100 parts of urea, 40 parts of fulvic acid, ammonium nitrate 25
Part, 15 parts of monoammonium phosphate, 15 parts of potassium chloride, 13 parts of potassium dihydrogen phosphate, 4 parts of ammonium molybdate, 5 parts of magnesium sulfate, 1 part of zinc sulfate, sulfuric acid
1 part of manganese, 1 part of copper sulphate, 1 part of dispersant, gamma-polyglutamic acid/0.4 part of chitosan oligosaccharide hydrogel；
The coating agent is as made from the raw material of following parts by weight：25 parts of urea, 29 parts of formaldehyde.
Lettuce application effect
Test site：Hebei province Luan County vegetables production base.
Test variety：Lettuce.
Tested fertilizer：High-tower granulation fulvic acid type enhanced fertilizer prepared by embodiment 1-3 and comparative example 1-3.
Test process：Experiment sets 7 processing, 2 repetitions, totally 14 trial zones, each trial zone random alignment, often trial zone
Area 66m2。
Blank group applies the composite fertilizer without fulvic acid, and 60kg/ mus, wherein nutritional ingredient is N-P2O5-K2O：17-17-
17.Embodiment 1-3 and comparative example 1-3 apply high-tower granulation fulvic acid type enhanced fertilizer, 50kg/ mus.
June transplant planting, plantation density be 25 plants/m2, average headway 200mm, as top dressing to spray after field planting
Based on.3 progress of top dressing point, sprayed once every 8 days.Month in July harvests.Meanwhile observe plant leaf, measurement model field and
Compare field Lettuce stem is thick and plant height.The results are shown in Table 1.
The Lettuce application result of 1 high-tower granulation fulvic acid type enhanced fertilizer of table
As it can be seen from table 1 compared with blank group, using the naked oats of high-tower granulation fulvic acid type enhanced fertilizer of the present invention
Dish in thick, the average plant plant height of average plants stems, leaf color and the thick and solid degree of blade etc., shows stronger advantage.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of high-tower granulation fulvic acid type enhanced fertilizer, which is characterized in that be as made from the raw material of following parts by weight：Particle
Core fertilizer 100 parts, 2-4 parts of coating agent；
The particle cores fertilizer is as made from the raw material of following parts by weight：100 parts of urea, 30-50 parts of fulvic acid, ammonium nitrate 20-
30 parts, 10-20 parts of monoammonium phosphate, 10-20 parts of potassium chloride, 10-15 parts of potassium dihydrogen phosphate, 3-5 parts of ammonium molybdate, 4-6 parts of magnesium sulfate,
1 part of zinc sulfate, 1 part of manganese sulfate, 1 part of copper sulphate, 0.5-1.5 parts of dispersant, gamma-polyglutamic acid/chitosan oligosaccharide hydrogel 0.3-0.5
Part；
The coating agent is as made from the raw material of following parts by weight：20-30 parts of urea, 28-30 parts of formaldehyde, the poly- second two of pi-allyl
2-4 parts of alcohol, 1-1.4 parts of diethylene triamine pentacetic acid (DTPA).
2. high-tower granulation fulvic acid type enhanced fertilizer according to claim 1, which is characterized in that the gamma-polyglutamic acid/shell
Oligosaccharides hydrogel is as made from following methods：Gamma-polyglutamic acid, hyaluronic acid and chitosan oligosaccharide are added in water, 85 DEG C of heating
To being completely dissolved, 26 DEG C are cooled to, n-hydroxysuccinimide room temperature is added in and is stirred continuously cross-linking reaction 5min, obtain γ-poly- paddy
Propylhomoserin/chitosan oligosaccharide hydrogel.
3. high-tower granulation fulvic acid type enhanced fertilizer according to claim 2, which is characterized in that the gamma-polyglutamic acid, thoroughly
Bright matter acid, chitosan oligosaccharide, the amount ratio of n-hydroxysuccinimide and water are 5-7g：0.3-0.5g：0.4-0.6g：2.5-3.5g：
100mL。
4. high-tower granulation fulvic acid type enhanced fertilizer according to claim 1, which is characterized in that the dispersant is by methyl
Sodium allylsulfonate and poly glycol monomethyl ether are according to 1：1-1.5 weight ratio made from.
5. the production method of high-tower granulation fulvic acid type enhanced fertilizer, feature exist any one of a kind of claim 1-4
In being as made from following steps：
1) preparation of particle cores fertilizer：By Urea to 120 DEG C of -140 DEG C of meltings, urea melting liquid is obtained；By monoammonium phosphate, phosphoric acid
Potassium dihydrogen adds to urea melting liquid, is uniformly mixed；Again by fulvic acid, potassium chloride, ammonium molybdate, magnesium sulfate, zinc sulfate, manganese sulfate,
Copper sulphate, dispersant and gamma-polyglutamic acid/chitosan oligosaccharide hydrogel add to wherein, are uniformly mixed, obtain slurry；By slurry through being granulated
Device is input to granulation tower and carries out high-tower granulation, obtains granular fertilizer；Granular fertilizer is cooled down through conveying equipment to level-one cooler and two level
Machine carries out being cooled to 30-40 DEG C of temperature；Vibration, screening obtain the particle cores fertilizer that grain size is 2-4mm；
2) preparation of coating agent：Formaldehyde is added in reactive tank, the urea of 50% weight is added in while stirring, adds pi-allyl
Polyethylene glycol and diethylene triamine pentacetic acid (DTPA), sodium hydroxide adjust pH value 7.0, are warming up to 90-110 DEG C of reaction 30-40min；Again
The urea of remaining 50% weight is added in, phosphorus acid for adjusting pH value is 4,60-70 DEG C of reaction 0.5-1.5h, obtains coating agent；
3) particle cores fertilizer is placed in coating machine, coating agent carries out coating processing to particle cores fertilizer spraying, and it is yellow rotten to obtain high-tower granulation
Acid type enhanced fertilizer.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109328697A (en) * | 2018-10-22 | 2019-02-15 | 安徽省农业科学院农业工程研究所 | A kind of oil tea implantation methods |
| CN111704501A (en) * | 2020-06-28 | 2020-09-25 | 河北百禾丰化肥有限公司 | Preparation method of high-tower medium-trace element compound fertilizer |
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| CN109328697A (en) * | 2018-10-22 | 2019-02-15 | 安徽省农业科学院农业工程研究所 | A kind of oil tea implantation methods |
| CN111704501A (en) * | 2020-06-28 | 2020-09-25 | 河北百禾丰化肥有限公司 | Preparation method of high-tower medium-trace element compound fertilizer |
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