CN107903128A - A kind of middle trace element compound fertilizer based on marine algae extract and preparation method thereof - Google Patents
A kind of middle trace element compound fertilizer based on marine algae extract and preparation method thereof Download PDFInfo
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- CN107903128A CN107903128A CN201810050163.9A CN201810050163A CN107903128A CN 107903128 A CN107903128 A CN 107903128A CN 201810050163 A CN201810050163 A CN 201810050163A CN 107903128 A CN107903128 A CN 107903128A
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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
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
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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 invention discloses a kind of middle trace element compound fertilizer based on marine algae extract, by weight, its preparing raw material includes：100 parts of clay, 20 50 parts of urea, 20 50 parts of humic acid, 10 30 parts of marine algae extract, 10 40 parts of potassium sulfate, 10 30 parts of ammonium sulfate, 5 10 parts of iron powder, 5 10 parts of borax, 5 10 parts of bentonite, 1 10 parts of starch and quaternary ammonium salt-modified 0 30 parts of sulfonated phosphazene polyethersulfone block copolymer 1.The middle trace element compound fertilizer water retention property based on marine algae extract of the present invention is good, strong to the rejection ability of heavy metal ion and from the influence of soil ph, can greatly improve the yield of crop.
Description
Technical field
The invention belongs to composite fertilizer's technical field, more particularly it relates to a kind of based on micro- in marine algae extract
Secondary element composite fertilizer and preparation method thereof.
Background technology
Before chemical fertilizer industry not yet comes out, plant nutrient system is a kind of low-level material circulation, after 18th century,
The administration of chemical fertilizer is developed on the basis of application of organic fertilizers, over nearly more than 100 years, the amount of application of N, P, K chemical fertilizer drastically increases
Add, and the middle and trace element nutrient taken away with crop does not have the supply that can obtain system.
The element that content is 0.1%~0.5% in plant is known as moderate-element, including three kinds of calcium, magnesium, sulphur elements.Content
Necessary nutrient between 0.2~200mg/kg is known as trace element, there is zinc, boron, molybdenum, copper, iron, manganese, 7 kinds of chlorine.In, it is micro-
Secondary element is to promote photosynthesis, respiration and material transformation " enzyme " or coenzyme in plant mostly " composition
Part.Very active in plant, when certain element is insufficient in soil, symptom occurs in plant, subtracts crop yield
Few, quality decline, even No kernels or seeds are gathered, as in a year of scarcity when serious, in this case using corresponding fertilizer, often receives extremely obvious
The effect of increasing income.
However, there are water retention property is poor, suppression energy to heavy metal ion for middle trace element compound fertilizer of the prior art
Power is weak and is influenced the shortcomings of big be subject to soil ph, it would be highly desirable to solves.
The content of the invention
For this reason, one aspect of the present invention provides the middle trace element compound fertilizer based on marine algae extract, by weight,
Its preparing raw material includes：100 parts of clay, 20-50 parts of urea, 20-50 parts of humic acid, 10-30 parts of marine algae extract, potassium sulfate
10-40 parts, 10-30 parts of ammonium sulfate, 5-10 parts of iron powder, 5-10 parts of borax, 5-10 parts of bentonite, 1-10 parts of starch and quaternary ammonium salt change
Property sulfonated phosphazene -0-30 parts of polyethersulfone block copolymer 1；
Preferably, the middle trace element compound fertilizer based on marine algae extract, by weight, its preparing raw material includes：
100 parts of clay, 30-40 parts of urea, 30-40 parts of humic acid, 15-25 parts of marine algae extract, 20-30 parts of potassium sulfate, ammonium sulfate 15-
25 parts, 6-9 parts of iron powder, 6-9 parts of borax, 6-9 parts of bentonite, 2-8 parts of starch and quaternary ammonium salt-modified sulfonated phosphazene-polyether sulfone are embedding
5-25 parts of copolymer 1 of section；
It is highly preferred that the middle trace element compound fertilizer based on marine algae extract, by weight, its preparing raw material bag
Include：100 parts of clay, 35 parts of urea, 32 parts of humic acid, 19 parts of marine algae extract, 22 parts of potassium sulfate, 21 parts of ammonium sulfate, iron powder 8
Part, 7 parts of borax, 8 parts of bentonite, 6 parts of starch and quaternary ammonium salt-modified sulfonated phosphazene -20 parts of polyethersulfone block copolymer.
In one embodiment, the preparation method of the marine algae extract is：
By weight, 100 portions of seaweed are added into 500 parts of deionized waters and the mixed solution of 300 parts of isopropanols
In, stirred at 60 DEG C 24 it is small when after, be cooled to room temperature, filter to remove residue, after clear filtrate is recycled and dried,
Obtain solid-like marine algae extract.
In one embodiment, the average grain diameter of the iron powder is 400-1000 microns；Preferably 600 microns.
In one embodiment, the bentonitic average grain diameter is 300-600 nanometers；Preferably 400 nanometers.
The present invention also provides the preparation method of the middle trace element compound fertilizer based on marine algae extract, including：
The recipe ingredient is added in homogenizer, 50 min, stir speed (S.S.) 500- are stirred under the conditions of 70 DEG C
1500 r/min, obtain after cooling.
Preferably, the stir speed (S.S.) is 800-1200 r/min
It is highly preferred that the stir speed (S.S.) is 950 r/min.
Compared with prior art, beneficial effects of the present invention are：
1st, by the addition of marine algae extract, the absorbability that metal is passivated and greatly improves crop can be suppressed.
2nd, by the addition of quaternary ammonium salt-modified sulfonated phosphazene-polyethersulfone block copolymer, fertilizer can be made to possess in itself
Soda acid reconciliation ability, avoids the influence of soil ph, and is greatly improved water holding capacity, so as to effectively improve yield.
Embodiment
Raw material:
Clay（1250 mesh）Purchased from hundred million peak Chemical Industry Science Co., Ltd of Guangzhou.Iron powder（600 microns of average grain diameter）, bentonite（It is flat
Equal 400 nanometers of particle diameter）, silane resin acceptor kh-550, silane coupling agent KH-560 be purchased from Aladdin reagent.Starch is purchased from Renqiu City
Peng Yang Chemical Co., Ltd.s.Graphene oxide is purchased from permanent ball science and technology.Other raw materials are purchased from Chinese medicines group.
Embodiment 1
By weight, successively by 100 parts of clay, 20 parts of urea, 20 parts of humic acid, 10 parts of marine algae extract, 10 parts of potassium sulfate, sulphur
Sour 10 parts of ammonium, 5 parts of iron powder, 5 parts of borax, 5 parts of bentonite, 1 part of starch and quaternary ammonium salt-modified sulfonated phosphazene-polyethersulfone block are common
In 10 parts of addition homogenizers of polymers, 50 min are stirred under the conditions of 70 DEG C, stir speed (S.S.) is 950 r/min, after cooling
To composite fertilizer；
The preparation method of the quaternary ammonium salt-modified sulfonated phosphazene-polyethersulfone block copolymer is：
（1）In 300 milliliters of round-bottomed flasks, by 0.41 gram of hexachlorocyclotriph,sphazene and 0.94 gram 4,4 '-dihydroxydiphenylsulisomer is molten
Then solution adds 1.5 milliliters of triethylamines in 190 milliliters of acetonitriles, be placed in 50 DEG C of ultrasonic water baths reaction 10 it is small when, reaction knot
Shu Hou, is centrifuged off solvent, distinguishes washed product 5 times with deionized water and acetone, finally vacuum drying 25 is small at 50 DEG C
When obtain white polyphosphazene powder；
（2）Under nitrogen protection, 1.23 are added to being connected with the there-necked flask of mechanical agitation, air inlet pipe, water-taker and condenser pipe
Gram above-mentioned steps（1）Gained white polyphosphazene powder, 4.250 grams of diallyl bisphenol Ss, 3.811 grams of 4,4 '-difluorodiphenyl sulfones,
30 milliliters of sulfolane, 2.6 grams of potassium carbonate, 20 milliliters of toluene, 140 DEG C reflux, band water 4 it is small when after, raise temperature, steam toluene,
System temperature rises to 165 DEG C, when reaction 20 is small, discharges in water, obtains bar shaped polymer, by obtained bar shaped polymer with smashing
Broken machine is smashed to pieces, then obtains polyphosphazene-polyethers with after distilled water boiling washing 3 times, being placed on when 50 DEG C of drying 24 are small in vacuum drying oven
Sulfone block copolymer；
（3）0.6 gram of above-mentioned polyphosphazene-polyethersulfone block copolymer powder is added in 100 milliliters of three-neck flasks, adds 10 millis
The concentrated sulfuric acid of mass per liter fraction 98%, is placed in 50 DEG C of water-baths, when reaction 15 is small under mechanical stirring, after reaction, will produce
Thing is slowly poured into cold water, and is stirred continuously, and is centrifuged off unreacted sulfuric acid, product is then washed with deionized 5 times, most
Sulfonated phosphazene-polyethersulfone block copolymer is obtained when vacuum drying 48 is small at 50 DEG C afterwards；
（4）In 250 milliliters of round-bottomed flasks, above-mentioned steps are sequentially added（3）Gained sulfonated phosphazene-polyethersulfone block copolymer
10 grams, 2 grams of graphene oxide, 150 milliliters of dimethyl sulfoxide (DMSO), 0.5 gram of triethylamine, 2 grams of 1,3- dibromopropanes, silane coupling agent
2 grams of KH-550 and 5 grams of silane coupling agent KH-560, system temperature rise to 50 DEG C, when reaction 6 is small after, add mass fraction
0.5 milliliter of 35% concentrated hydrochloric acid, after continuing when reaction 1 is small at 50 DEG C, discharges in water, obtains fluffy solid, use deionized water
Wash the fluffy solid respectively with ethanol 3 times, the poly- phosphorus of quaternary ammonium salt-modified sulfonation is obtained when finally vacuum drying 24 is small at 50 DEG C
Nitrile-polyethersulfone block copolymer.
Embodiment 2
By weight, successively by 100 parts of clay, 50 parts of urea, 50 parts of humic acid, 30 parts of marine algae extract, 40 parts of potassium sulfate, sulphur
Sour 30 parts of ammonium, 10 parts of iron powder, 10 parts of borax, 10 parts of bentonite, 10 parts of starch and quaternary ammonium salt-modified sulfonated phosphazene-polyether sulfone
In 30 parts of addition homogenizers of block copolymer, 50 min are stirred under the conditions of 70 DEG C, stir speed (S.S.) is 950 r/min, cold
But composite fertilizer is obtained afterwards；
The preparation method of the quaternary ammonium salt-modified sulfonated phosphazene-polyethersulfone block copolymer is same as Example 1.
Embodiment 3
By weight, successively by 100 parts of clay, 30 parts of urea, 30 parts of humic acid, 15 parts of marine algae extract, 20 parts of potassium sulfate, sulphur
Sour 15 parts of ammonium, 6 parts of iron powder, 6 parts of borax, 6 parts of bentonite, 2 parts of starch and quaternary ammonium salt-modified sulfonated phosphazene-polyethersulfone block
In 5 parts of addition homogenizers of copolymer 1,50 min are stirred under the conditions of 70 DEG C, stir speed (S.S.) is 950 r/min, after cooling
Obtain composite fertilizer；
The preparation method of the quaternary ammonium salt-modified sulfonated phosphazene-polyethersulfone block copolymer is in the same manner as in Example 1.
Embodiment 4
By weight, successively by 100 parts of clay, 35 parts of urea, 32 parts of humic acid, 19 parts of marine algae extract, 22 parts of potassium sulfate, sulphur
Sour 21 parts of ammonium, 8 parts of iron powder, 7 parts of borax, 8 parts of bentonite, 6 parts of starch and quaternary ammonium salt-modified sulfonated phosphazene-polyethersulfone block
In 20 parts of addition homogenizers of copolymer, 50 min are stirred under the conditions of 70 DEG C, stir speed (S.S.) is 950 r/min, after cooling
Obtain composite fertilizer；
The preparation method of the quaternary ammonium salt-modified sulfonated phosphazene-polyethersulfone block copolymer is same as Example 1.
Comparative example 1
By weight, successively by 100 parts of clay, 35 parts of urea, 32 parts of humic acid, 22 parts of potassium sulfate, 21 parts of ammonium sulfate, iron powder 8
In 6 parts of part, 7 parts of borax, 8 parts of bentonite, starch addition homogenizers, 50 min, stir speed (S.S.) are stirred under the conditions of 70 DEG C
For 950 r/min, composite fertilizer is obtained after cooling.
Comparative example 2
By weight, successively by 100 parts of clay, 35 parts of urea, 32 parts of humic acid, 19 parts of marine algae extract, 22 parts of potassium sulfate, sulphur
In 6 parts of sour 21 parts of ammonium, 8 parts of iron powder, 7 parts of borax, 8 parts of bentonite, starch addition homogenizers, 50 are stirred under the conditions of 70 DEG C
Min, stir speed (S.S.) are 950 r/min, and composite fertilizer is obtained after cooling.
Comparative example 3
By weight, successively by 100 parts of clay, 35 parts of urea, 32 parts of humic acid, 19 parts of marine algae extract, 22 parts of potassium sulfate, sulphur
Sour 21 parts of ammonium, 8 parts of iron powder, 7 parts of borax, 8 parts of bentonite, 6 parts of starch and sulfonated phosphazene -20 parts of polyethersulfone block copolymer add
Enter in homogenizer, 50 min are stirred under the conditions of 70 DEG C, stir speed (S.S.) is 950 r/min, and composite fertilizer is obtained after cooling；
The preparation method of the sulfonated phosphazene-polyethersulfone block copolymer is：
（1）In 300 milliliters of round-bottomed flasks, by 0.41 gram of hexachlorocyclotriph,sphazene and 0.94 gram 4,4 '-dihydroxydiphenylsulisomer is molten
Then solution adds 1.5 milliliters of triethylamines in 190 milliliters of acetonitriles, be placed in 50 DEG C of ultrasonic water baths reaction 10 it is small when, reaction knot
Shu Hou, is centrifuged off solvent, distinguishes washed product 5 times with deionized water and acetone, finally vacuum drying 25 is small at 50 DEG C
When obtain white polyphosphazene powder；
（2）Under nitrogen protection, 1.23 are added to being connected with the there-necked flask of mechanical agitation, air inlet pipe, water-taker and condenser pipe
Gram above-mentioned steps（1）Gained white polyphosphazene powder, 4.250 grams of diallyl bisphenol Ss, 3.811 grams of 4,4 '-difluorodiphenyl sulfones,
30 milliliters of sulfolane, 2.6 grams of potassium carbonate, 20 milliliters of toluene, 140 DEG C reflux, band water 4 it is small when after, raise temperature, steam toluene,
System temperature rises to 165 DEG C, when reaction 20 is small, discharges in water, obtains bar shaped polymer, by obtained bar shaped polymer with smashing
Broken machine is smashed to pieces, then obtains polyphosphazene-polyethers with after distilled water boiling washing 3 times, being placed on when 50 DEG C of drying 24 are small in vacuum drying oven
Sulfone block copolymer；
（3）0.6 gram of above-mentioned polyphosphazene-polyethersulfone block copolymer powder is added in 100 milliliters of three-neck flasks, adds 10 millis
The concentrated sulfuric acid of mass per liter fraction 98%, is placed in 50 DEG C of water-baths, when reaction 15 is small under mechanical stirring, after reaction, will produce
Thing is slowly poured into cold water, and is stirred continuously, and is centrifuged off unreacted sulfuric acid, product is then washed with deionized 5 times, most
Sulfonated phosphazene-polyethersulfone block copolymer is obtained when vacuum drying 48 is small at 50 DEG C afterwards.
Comparative example 4
By weight, successively by 100 parts of clay, 35 parts of urea, 32 parts of humic acid, 19 parts of marine algae extract, 22 parts of potassium sulfate, sulphur
Sour 21 parts of ammonium, 8 parts of iron powder, 7 parts of borax, 8 parts of bentonite, 6 parts of starch and quaternary ammonium salt-modified polyphosphazene-polyethersulfone block copolymerization
In 20 parts of addition homogenizers of thing, 50 min are stirred under the conditions of 70 DEG C, stir speed (S.S.) is 950 r/min, is obtained after cooling
Composite fertilizer；
The preparation method of the quaternary ammonium salt-modified polyphosphazene-polyethersulfone block copolymer is：
（1）In 300 milliliters of round-bottomed flasks, by 0.41 gram of hexachlorocyclotriph,sphazene and 0.94 gram 4,4 '-dihydroxydiphenylsulisomer is molten
Then solution adds 1.5 milliliters of triethylamines in 190 milliliters of acetonitriles, be placed in 50 DEG C of ultrasonic water baths reaction 10 it is small when, reaction knot
Shu Hou, is centrifuged off solvent, distinguishes washed product 5 times with deionized water and acetone, finally vacuum drying 25 is small at 50 DEG C
When obtain white polyphosphazene powder；
（2）Under nitrogen protection, 1.23 are added to being connected with the there-necked flask of mechanical agitation, air inlet pipe, water-taker and condenser pipe
Gram above-mentioned steps（1）Gained white polyphosphazene powder, 4.250 grams of diallyl bisphenol Ss, 3.811 grams of 4,4 '-difluorodiphenyl sulfones,
30 milliliters of sulfolane, 2.6 grams of potassium carbonate, 20 milliliters of toluene, 140 DEG C reflux, band water 4 it is small when after, raise temperature, steam toluene,
System temperature rises to 165 DEG C, when reaction 20 is small, discharges in water, obtains bar shaped polymer, by obtained bar shaped polymer with smashing
Broken machine is smashed to pieces, then obtains polyphosphazene-polyethers with after distilled water boiling washing 3 times, being placed on when 50 DEG C of drying 24 are small in vacuum drying oven
Sulfone block copolymer；
（3）In 250 milliliters of round-bottomed flasks, above-mentioned steps are sequentially added（2）Gained polyphosphazene-polyethersulfone block copolymer 10
Gram, 2 grams of graphene oxide, 150 milliliters of dimethyl sulfoxide (DMSO), 0.5 gram of triethylamine, 2 grams of 1,3- dibromopropanes, silane coupling agent KH-
550 2 grams and silane coupling agent KH-560 5 grams, system temperature rises to 50 DEG C, when reaction 6 is small after, add mass fraction 35%
0.5 milliliter of concentrated hydrochloric acid, continue at 50 DEG C reaction 1 it is small when after, discharge in water, obtain fluffy solid, with deionized water and
Ethanol washs the fluffy solid 3 times respectively, and quaternary ammonium salt-modified polyphosphazene-poly- is obtained when finally vacuum drying 24 is small at 50 DEG C
Ether sulfone block copolymer.
Comparative example 5
By weight, successively by 100 parts of clay, 35 parts of urea, 32 parts of humic acid, 19 parts of marine algae extract, 22 parts of potassium sulfate, sulphur
Sour 21 parts of ammonium, 8 parts of iron powder, 7 parts of borax, 8 parts of bentonite, 6 parts of starch and polyphosphazene -20 parts of polyethersulfone block copolymer add
In homogenizer, 50 min are stirred under the conditions of 70 DEG C, stir speed (S.S.) is 950 r/min, and composite fertilizer is obtained after cooling；
The preparation method of the polyphosphazene-polyethersulfone block copolymer is：
（1）In 300 milliliters of round-bottomed flasks, by 0.41 gram of hexachlorocyclotriph,sphazene and 0.94 gram 4,4 '-dihydroxydiphenylsulisomer is molten
Then solution adds 1.5 milliliters of triethylamines in 190 milliliters of acetonitriles, be placed in 50 DEG C of ultrasonic water baths reaction 10 it is small when, reaction knot
Shu Hou, is centrifuged off solvent, distinguishes washed product 5 times with deionized water and acetone, finally vacuum drying 25 is small at 50 DEG C
When obtain white polyphosphazene powder；
（2）Under nitrogen protection, 1.23 are added to being connected with the there-necked flask of mechanical agitation, air inlet pipe, water-taker and condenser pipe
Gram above-mentioned steps（1）Gained white polyphosphazene powder, 4.250 grams of diallyl bisphenol Ss, 3.811 grams of 4,4 '-difluorodiphenyl sulfones,
30 milliliters of sulfolane, 2.6 grams of potassium carbonate, 20 milliliters of toluene, 140 DEG C reflux, band water 4 it is small when after, raise temperature, steam toluene,
System temperature rises to 165 DEG C, when reaction 20 is small, discharges in water, obtains bar shaped polymer, by obtained bar shaped polymer with smashing
Broken machine is smashed to pieces, then obtains polyphosphazene-polyethers with after distilled water boiling washing 3 times, being placed on when 50 DEG C of drying 24 are small in vacuum drying oven
Sulfone block copolymer.
Test condition
By the composite fertilizer of 1-4 of the embodiment of the present invention and comparative example 1-5 respectively with cotton seeds with the proportioning of 1: 60 (w/w) be coated with
Afterwards, under arid and salt stress growing environment, observed respectively in acid and basic soil statistical comparison cotton germination percentage and
Every growth indexes, physical signs.
Test result see the table below.
1 acid soil of table（PH4.2）In
2 basic soil of table（PH9.3）In
Claims (10)
- A kind of 1. middle trace element compound fertilizer based on marine algae extract, it is characterised in that by weight, its preparing raw material bag Include：100 parts of clay, 20-50 parts of urea, 20-50 parts of humic acid, 10-30 parts of marine algae extract, 10-40 parts of potassium sulfate, sulfuric acid 10-30 parts of ammonium, 5-10 parts of iron powder, 5-10 parts of borax, 5-10 parts of bentonite, 1-10 parts of starch and the poly- phosphorus of quaternary ammonium salt-modified sulfonation Nitrile -0-30 parts of polyethersulfone block copolymer 1.
- 2. the middle trace element compound fertilizer according to claim 1 based on marine algae extract, it is characterised in that by weight Meter, its preparing raw material include：100 parts of clay, 30-40 parts of urea, 30-40 parts of humic acid, 15-25 parts of marine algae extract, 20-30 parts of potassium sulfate, sulfuric acid 15-25 parts of ammonium, 6-9 parts of iron powder, 6-9 parts of borax, 6-9 parts of bentonite, 2-8 parts of starch and quaternary ammonium salt-modified sulfonated phosphazene-poly- 15-25 parts of ether sulfone block copolymer.
- 3. the middle trace element compound fertilizer according to claim 1 based on marine algae extract, it is characterised in that by weight Meter, its preparing raw material include：100 parts of clay, 35 parts of urea, 32 parts of humic acid, 19 parts of marine algae extract, 22 parts of potassium sulfate, 21 parts of ammonium sulfate, iron powder 8 Part, 7 parts of borax, 8 parts of bentonite, 6 parts of starch and quaternary ammonium salt-modified sulfonated phosphazene -20 parts of polyethersulfone block copolymer.
- 4. according to middle trace element compound fertilizer of the claim 1-3 any one of them based on marine algae extract, it is characterised in that The preparation method of the marine algae extract is：By weight, 100 portions of seaweed are added into 500 parts of deionized waters and the mixed solution of 300 parts of isopropanolsIn, stirred at 60 DEG C 24 it is small when after, be cooled to room temperature, filter to remove residue, after clear filtrate is recycled and dried, Obtain solid-like marine algae extract.
- 5. according to middle trace element compound fertilizer of the claim 1-3 any one of them based on marine algae extract, it is characterised in that The average grain diameter of the iron powder is 400-1000 microns.
- 6. according to middle trace element compound fertilizer of the claim 1-3 any one of them based on marine algae extract, it is characterised in that The bentonitic average grain diameter is 300-600 nanometers.
- 7. according to middle trace element compound fertilizer of the claim 1-3 any one of them based on marine algae extract, it is characterised in that The preparation method of the quaternary ammonium salt-modified sulfonated phosphazene-polyethersulfone block copolymer is：（1）In 300 milliliters of round-bottomed flasks, by 0.41 gram of hexachlorocyclotriph,sphazene and 0.94 gram 4,4 '-dihydroxydiphenylsulisomer is molten Then solution adds 1.5 milliliters of triethylamines in 190 milliliters of acetonitriles, be placed in 50 DEG C of ultrasonic water baths reaction 10 it is small when, reaction knot Shu Hou, is centrifuged off solvent, distinguishes washed product 5 times with deionized water and acetone, finally vacuum drying 25 is small at 50 DEG C When obtain white polyphosphazene powder；（2）Under nitrogen protection, 1.23 are added to being connected with the there-necked flask of mechanical agitation, air inlet pipe, water-taker and condenser pipe Gram above-mentioned steps（1）Gained white polyphosphazene powder, 4.250 grams of diallyl bisphenol Ss, 3.811 grams of 4,4 '-difluorodiphenyl sulfones, 30 milliliters of sulfolane, 2.6 grams of potassium carbonate, 20 milliliters of toluene, 140 DEG C reflux, band water 4 it is small when after, raise temperature, steam toluene, System temperature rises to 165 DEG C, when reaction 20 is small, discharges in water, obtains bar shaped polymer, by obtained bar shaped polymer with smashing Broken machine is smashed to pieces, then obtains polyphosphazene-polyethers with after distilled water boiling washing 3 times, being placed on when 50 DEG C of drying 24 are small in vacuum drying oven Sulfone block copolymer；（3）0.6 gram of above-mentioned polyphosphazene-polyethersulfone block copolymer powder is added in 100 milliliters of three-neck flasks, adds 10 millis The concentrated sulfuric acid of mass per liter fraction 98%, is placed in 50 DEG C of water-baths, when reaction 15 is small under mechanical stirring, after reaction, will produce Thing is slowly poured into cold water, and is stirred continuously, and is centrifuged off unreacted sulfuric acid, product is then washed with deionized 5 times, most Sulfonated phosphazene-polyethersulfone block copolymer is obtained when vacuum drying 48 is small at 50 DEG C afterwards；（4）In 250 milliliters of round-bottomed flasks, above-mentioned steps are sequentially added（3）Gained sulfonated phosphazene-polyethersulfone block copolymer 10 grams, 2 grams of graphene oxide, 150 milliliters of dimethyl sulfoxide (DMSO), 0.5 gram of triethylamine, 2 grams of 1,3- dibromopropanes, silane coupling agent 2 grams of KH-550 and 5 grams of silane coupling agent KH-560, system temperature rise to 50 DEG C, when reaction 6 is small after, add mass fraction 0.5 milliliter of 35% concentrated hydrochloric acid, after continuing when reaction 1 is small at 50 DEG C, discharges in water, obtains fluffy solid, use deionized water Wash the fluffy solid respectively with ethanol 3 times, the poly- phosphorus of quaternary ammonium salt-modified sulfonation is obtained when finally vacuum drying 24 is small at 50 DEG C Nitrile-polyethersulfone block copolymer.
- 8. the preparation method of the middle trace element compound fertilizer based on marine algae extract, it is characterised in that including：Recipe ingredient any one of claim 1-7 is added in homogenizer, 50 are stirred under the conditions of 70 DEG C Min, stir speed (S.S.) are 500-1500 r/min, are obtained after cooling.
- 9. the preparation method of the middle trace element compound fertilizer according to claim 8 based on marine algae extract, its feature exist In the stir speed (S.S.) is 800-1200 r/min.
- 10. the preparation method of the middle trace element compound fertilizer according to claim 9 based on marine algae extract, its feature exist In the stir speed (S.S.) is 950 r/min.
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