CN104478615B - Wheat compound fertilizer and preparation method thereof - Google Patents
Wheat compound fertilizer and preparation method thereof Download PDFInfo
- Publication number
- CN104478615B CN104478615B CN201410821961.9A CN201410821961A CN104478615B CN 104478615 B CN104478615 B CN 104478615B CN 201410821961 A CN201410821961 A CN 201410821961A CN 104478615 B CN104478615 B CN 104478615B
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- CN
- China
- Prior art keywords
- fertilizer
- wheat
- chemical mixed
- super absorbent
- absorbent resin
- Prior art date
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 224
- 241000209140 Triticum Species 0.000 title claims abstract description 113
- 235000021307 Triticum Nutrition 0.000 title claims abstract description 113
- 238000002360 preparation method Methods 0.000 title claims abstract description 36
- 150000001875 compounds Chemical class 0.000 title claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 83
- 229920005989 resin Polymers 0.000 claims abstract description 83
- 230000002745 absorbent Effects 0.000 claims abstract description 77
- 239000002250 absorbent Substances 0.000 claims abstract description 77
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims description 105
- 229920000858 Cyclodextrin Polymers 0.000 claims description 63
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims description 63
- 229920002472 Starch Polymers 0.000 claims description 45
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 44
- 235000019698 starch Nutrition 0.000 claims description 44
- 239000008107 starch Substances 0.000 claims description 44
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 43
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 31
- 229910052698 phosphorus Inorganic materials 0.000 claims description 31
- 239000011574 phosphorus Substances 0.000 claims description 31
- 239000000178 monomer Substances 0.000 claims description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 150000001413 amino acids Chemical class 0.000 claims description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims description 21
- 239000011573 trace mineral Substances 0.000 claims description 21
- 235000013619 trace mineral Nutrition 0.000 claims description 21
- 239000003895 organic fertilizer Substances 0.000 claims description 20
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 19
- 239000002131 composite material Substances 0.000 claims description 19
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 16
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 14
- -1 manganese amino acid Chemical class 0.000 claims description 14
- 229920000578 graft copolymer Polymers 0.000 claims description 13
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- 229910052725 zinc Inorganic materials 0.000 claims description 12
- PUKLDDOGISCFCP-JSQCKWNTSA-N 21-Deoxycortisone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)C)(O)[C@@]1(C)CC2=O PUKLDDOGISCFCP-JSQCKWNTSA-N 0.000 claims description 11
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Natural products O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 claims description 11
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 6
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
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- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 5
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- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 3
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- 235000011130 ammonium sulphate Nutrition 0.000 claims description 3
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- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 claims 1
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- ATROHALUCMTWTB-OWBHPGMISA-N phoxim Chemical compound CCOP(=S)(OCC)O\N=C(\C#N)C1=CC=CC=C1 ATROHALUCMTWTB-OWBHPGMISA-N 0.000 description 1
- 229950001664 phoxim Drugs 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention belongs to the field of fertilizers, and relates to a wheat compound fertilizer and a preparation method thereof, in particular to a sustained-release wheat compound fertilizer with water retention and fertilizer retention functions and a preparation method thereof. The wheat compound fertilizer comprises super absorbent resin and an organic and inorganic compound fertilizer, wherein the organic and inorganic compound fertilizer can effectively supplement wheat with nutrients, the super absorbent resin has water retention and fertilizer retention functions and can effectively improve the granule strength and the granulating rate of the fertilizer when mixed with the organic and inorganic compound fertilizer, and energy consumption can be reduced. The wheat compound fertilizer has good water retention and fertilizer retention effects, irrigation times can be reduced, topdressing is not required after one-time fertilization, labor and effort are saved, and meanwhile, the wheat compound fertilizer can increase the yield of wheat and income and is suitable for simple and intensive planting patterns. The preparation method of the wheat compound fertilizer is simple in technology, and raw materials are wide in source and low in cost.
Description
Technical field
The invention belongs to fertilizer field, and in particular to a kind of wheat Chemical Mixed Fertilizer and preparation method thereof, more particularly, to one kind
Water conservation, sustained release wheat Chemical Mixed Fertilizer of fertilizer conservation and preparation method thereof.
Background technology
Wheat is, in the grass extensively planted all over the world, to originate from Middle East, is that northern China is most important
Cereal crops, annual whole nation cultivated area is concentrated mainly on Huang-Huai-Hai plain and the Yangtze river basin at 25,000,000 hectares.
Wheat growth be unable to do without water, nutrient (nutrient), air and sunlight, and absorption of the wheat to nutrient is by absorbing
Absorb what nutrient was completed during moisture simultaneously, without water, wheat cannot absorb nutrient, can not grow.Typically often produce 100kg
Wheat seed, need to absorb purity nitrogen 3.00kg, phosphorus (P2O5) 1.00kg-1.50kg, potassium (K2O) 2.00kg-4.00kg, nitrogen, phosphorus, potassium
Ratio is about 3：1：3.According to the growth-development law and nutritional characteristic of wheat, traditional way is：Heavy base fertilizer application is answered, typically should
The 60%-80% of total dose is accounted for, topdressing accounts for 40%-20% and be advisable.The base fertilizer of wheat should be based on farm manure, compounding application
Fertilizer.General per mu is applied on the basis of farm manure 2000kg-3000kg, common 45% Chemical Mixed Fertilizer 40kg-50kg.For base fertilizer not
Foot, sows three class wheatlands fewer than later tiller, to topdress early, will typically take the measure that the spring fertilizer winter applies, with reference to pouring jelly
Water topdresses, and can apply fertilizer before and after slight snow, and per mu imposes urea 10-20kg；More than comparison foot that base fertilizer is applied, tiller one, two
Class wheatland, can will stand up, the jointing stage takes the circumstances into consideration to topdress according to growing way and population profile in wheat, and coordinates and water.But current rural area
Labour is the middle-aged women of old man and more than 50 years old, winter wheat with a large amount of fertilizers, topdress, watering implements comparison and is stranded
Difficulty, and increase planting cost.Promote disposable base fertilizer, it is not necessary to which the simple economized planting patterns topdressed is significant.
The Chinese patent of publication number CN 1587211A discloses a kind of production method of water preserving type film coated urea fertilizer, public
The Chinese patent of the number of opening CN101792354A discloses a kind of drought-resistance water-retention sustained-release compound fertilizer and its production method.Above-mentioned patent
Technology is all the water conservation or drought resisting compound fertilizer by adding water-loss reducer and adhesive to be formed in fertilizer surface coating, and preparation technology is multiple
Miscellaneous, Water-saving effect is limited, high expensive.And because most of water-loss reducers are sensitive to salinity, absorb Water-saving effect meeting after nutrient
Substantially reduce.
The content of the invention
In view of this, for prior art exist defect, present invention aim at provide a kind of wheat Chemical Mixed Fertilizer and its
Preparation method.
To realize the purpose of the present invention, the present invention is adopted the following technical scheme that：
A kind of wheat Chemical Mixed Fertilizer, including super absorbent resin and organic-inorganic compound fertilizer.
In some embodiments, organic-inorganic compound fertilizer described in wheat Chemical Mixed Fertilizer of the present invention and the high suction
The mass ratio of water-base resin is 96～105:4～1, preferably 101:3～103:3.
In some embodiments, super absorbent resin is by starch and propylene described in wheat Chemical Mixed Fertilizer of the present invention
The graft polymers of acid monomers and cyclodextrin are constituted, and the starch is logical with the graft polymers of acrylic monomers and the cyclodextrin
The hydrogen bond that the hydrophobic region crossed inside cyclodextrin empty structure is formed with the carboxyl in acrylic acid is connected.
Wherein, starch described in the super absorbent resin has knot shown in Formulas I with the graft polymers of acrylic monomers
Structure,
Wherein ， ﹏ are starch chains；X is the quantity of acrylate monomers on polymer graft side chain, and y is that polymer is grafted side
The quantity of acrylic monomers on chain.
In some embodiments, starch described in the super absorbent resin and the graft polymers of acrylic monomers
X/ (x+y)=50%～70%.
In some embodiments, compound organic and inorganic fertilizer described in wheat Chemical Mixed Fertilizer of the present invention includes nitrogen, phosphorus, potassium
And composite trace element.
In some embodiments, N in compound organic and inorganic fertilizer described in wheat Chemical Mixed Fertilizer of the present invention:P2O5:K2O
Weight ratio is (16-27):(8-16):(7-12).
In some preferred embodiments, N in compound organic and inorganic fertilizer described in wheat Chemical Mixed Fertilizer of the present invention:P2O5:
K2O compares 26 for weight:14:8.
Wherein, in some embodiments, the existence form of nitrogen described in wheat Chemical Mixed Fertilizer of the present invention is urea, chlorine
Change one or more in ammonium, ammonium sulfate, MAP, ammonium hydrogen carbonate or ammonium nitrate；The existence form of the phosphorus is phosphoric acid one
Ammonium；The existence form of the potassium is potassium chloride；The composite trace element includes in zinc, manganese, boron, copper, iron or fulvic acid
Plant or several.
In some embodiments, wheat Chemical Mixed Fertilizer of the present invention, it is made up of following raw material：
60% 135 parts of potassium chloride, 57% 305 parts of MAP, 46.2% 475 parts of urea, 23.5% 25 parts of ammonium chloride, carbon
40 parts of sour hydrogen ammonium, 30 parts of composite trace element, 30 parts of super absorbent resin.
In some preferred embodiments, composite trace element described in wheat Chemical Mixed Fertilizer of the present invention is by amino acid
Zinc, manganese amino acid, boric acid, amino acid copper, amino acid iron, fulvic acid composition.
Further, in some preferred embodiments, in wheat Chemical Mixed Fertilizer of the present invention, the composite trace element
Middle amino-acid zinc, manganese amino acid, boric acid, amino acid copper, amino acid iron, the weight ratio of fulvic acid are 10:7:5:1:3:4.
Present invention also offers the preparation method of above-mentioned wheat Chemical Mixed Fertilizer is super absorbent resin and compound organic and inorganic fertilizer
Material mixing granulation.
As shown from the above technical solution, wheat Chemical Mixed Fertilizer of the present invention includes super absorbent resin and organic-inorganic compound
Fertilizer.Wherein organic-inorganic compound fertilizer can effectively supplement the nutrient of Wheat Production, and super absorbent resin has water conservation and guarantor
Fertilizer effect, with organic-inorganic compound fertilizer hybrid energy fertiliser granulates intensity and balling ratio, reducing energy consumption are effectively improved.Institute of the present invention
State wheat Chemical Mixed Fertilizer water conservation, fertilizer conservation effect good, pouring number of times, single fertilization can be reduced, it is not necessary to topdress, save labor, together
When make wheat increase yield, increase income, be suitable for simple economized planting patterns.The preparation method technique of wheat Chemical Mixed Fertilizer of the present invention
Simply, raw material sources are wide, with low cost.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
The invention provides a kind of wheat Chemical Mixed Fertilizer, including super absorbent resin and organic-inorganic compound fertilizer.
Wherein super absorbent resin is a kind of new functional high molecule material, and with hydrophilic radical, it can absorb certainly
The moisture that hundreds of or even thousands of times of body weight, it is nontoxic, it is harmless, it is pollution-free；Inhale water holding capacity strong, water, water suction can be repeatedly released, to one
A little fertilizer also have a certain degree of absorption combination.
Wheat Chemical Mixed Fertilizer of the present invention effectively improves fertilizer with super absorbent resin and organic-inorganic compound fertilizer hybrid energy
Material granule strength, while having water conservation and function of fertilizer retention.
In some embodiments, organic-inorganic compound fertilizer described in wheat Chemical Mixed Fertilizer of the present invention and the high water absorption
Property resin mass ratio be 96～105:4～1.
In some preferred embodiments, organic-inorganic compound fertilizer described in wheat Chemical Mixed Fertilizer of the present invention and the height
The mass ratio of water-absorbing resins is 101:3～103:3.
The synthesis of super absorbent resin fertilizer conservation water-keeping material at present is added crosslinking agent and is chemically crosslinked, and the degree of cross linking is high,
Closely, absorption keeps fertilizer limited in one's ability to interior spatial structure.In some embodiments, in wheat Chemical Mixed Fertilizer of the present invention
The super absorbent resin is with the super absorbent resin that cyclodextrin is the starch graft acrylic acid for twining connection agent, its internal voids
Greatly, can adsorb with reference to more fertilizer small molecules, can well keep fertilizer, the present invention to be defined as ring while water conservation
Dextrin super absorbent resin.Wherein described cyclodextrin super absorbent resin be by starch and acrylic monomers graft polymers and
Cyclodextrin is constituted, and the starch passes through inside cyclodextrin empty structure with the graft polymers of acrylic monomers with the cyclodextrin
Hydrophobic region with acrylic acid carboxyl formed hydrogen bond be connected.
Specifically, the cyclodextrin super absorbent resin super absorbent resin, with starch chain as main chain, polyacrylic acid
(sodium) is the graft polymers that graft side chain forms starch and acrylic monomers, and then graft polymers is physical crosslinking with cyclodextrin
Form super absorbent resin.Due to beta-schardinger dextrin, its molecule has the hollow cylinder three-dimensional ring structure for tapering slightly, in its ring
In shape structure, ring is outer hydrophilic, hydrophobic in ring, containing the group that can be interacted with nitrogen, hydrogen atom on the inside of ring, by hydrogen
The weak forces such as key, Van der Waals force, can be various organic with inclusion, absorption organic matter, fertilizer small molecule, polymer molecular chain etc.
Compound, forms clathrate.In cross-linking reaction, acrylic molecules can pass through the three-dimensional ring structure of cyclodextrin, ring
Hydrophobic grouping on the inside of shape structure forms the weak forces such as hydrogen bond and combines with carboxyl in acrylic acid, and chemical reaction does not occur, and makes
Obtain and connect more secure rigid between graft product chain and chain.Polyacrylic acid (sodium) graft side chain, cyclodextrin, together form sediment with corn
Powder chain defines space crossed network structure.
Chemically structure sees, the cyclodextrin super absorbent resin main chain (starch chain) and graft side chain (polyacrylic acid
(sodium)) on contain the hydrophilic functional group such as carboxyl and hydroxyl, and cyclodextrin is also containing the hydrophilic functional group such as hydroxyl.These groups
Not only there is affinity interaction to water, to the fertilizer also affinity interaction with height, make the cyclodextrin super absorbent resin in tool
There is good function of fertilizer retention while having water retention.From in terms of physical arrangement, the cyclodextrin super absorbent resin has low
The three-dimensional space network structure of the degree of cross linking, can wrap in fertilizer and moisture.
Chemical Mixed Fertilizer of the present invention includes cyclodextrin super absorbent resin and organic-inorganic compound fertilizer.It is of the present invention multiple
After complex fertilizer is manured into soil, the micro-nano network that water forms omnibearing stereo is met, by the common work of hydrogen bond, Van der Waals force and viscous force
With net catches available nutrient of fertilizer, and reunites in plough horizon, i.e. water and fertilizer coupling increases fertilizer nutrient into gluing granule group
Space scale, reduces water and nutrient migration rate, reduces water and nutrient and is lost in total amount, so as to persistently provide abundance for plant growth
Nutrient.Both utilization rate of fertilizer can have been greatly improved, nutrient loss (runoff, three kinds of approach of seepage and volatilization) can be greatly decreased again,
Reduce widespread pollution from the overuse of fertilizers and pesticides in rural area and greenhouse gas emission.Degraded and ring of the cyclodextrin super absorbent resin of the present invention with starch
What dextrin was physical crosslinking unties, and adsorbing the fertilizer small molecule for combining can slowly release, and can reach holding, slow release fertilizer nutrient
Effect, therefore without the need for add in Chemical Mixed Fertilizer of the present invention other chemical slow releases, controlled release agent, and the sustained release process again for pure
Physical process, centre has no chemical reaction generation, friendly to environment green, will not produce some poisonous and harmful substances.
In some embodiments, in the cyclodextrin super absorbent resin, the grafting of the starch and acrylic monomers
Polymer has structure shown in Formulas I,
Wherein ， ﹏ are starch chains；X is acrylates (product that acrylic acid is neutralized by alkali part) on polymer graft side chain
The quantity of monomer, y is the quantity of acrylic monomers on polymer graft side chain.
In some embodiments, starch described in the cyclodextrin super absorbent resin gathers with the grafting of acrylic monomers
The x/ (x+y)=50%～70% of compound.
In some embodiments, in the cyclodextrin super absorbent resin, the starch is cornstarch, potato shallow lake
Powder, sweet potato starch, wheaten starch or soybean starch.
In some embodiments, in the cyclodextrin super absorbent resin, in the cyclodextrin super absorbent resin, institute
Cyclodextrin is stated for alpha-cyclodextrin, beta-schardinger dextrin or gamma-cyclodextrin.
Wherein, the preparation method of cyclodextrin super absorbent resin of the present invention, comprises the steps：
A, starch and cyclodextrin are mixed with water, under inert gas shielding, plus alkali lye is gelatinized；
B, it is added dropwise in alkali lye in acrylic acid and obtains acrylic acid/acrylates mixed solution；
C, under inert gas shielding, starch that step a is obtained being gelatinized, step b obtain the mixing of acrylic acid/acrylates
Solution is well mixed with initiator, is warming up to 50-55 DEG C and is kept for 2 hours, adds absolute ethyl alcohol to collect white sticky precipitation；
Wherein step a and step b in no particular order order.
Cyclodextrin super absorbent resin of the present invention is by starch and acrylic acid (sodium) monomer graft copolymerization.
I.e. by initiator, the hydrogen on starch molecule tertiary carbon is set to be seized and produce free radical, then initiation grafting monomeric acrylic
(sodium) graft copolymerization, forms Starch with Acrylic Acid free radical, continues to carry out chain growth polymerization reaction with acrylic monomers, most
Chain termination afterwards, obtains the graft polymers of starch and acrylic monomers.Then graft polymers is physical crosslinking with cyclodextrin,
Acrylic molecules pass through the three-dimensional ring structure of cyclodextrin, the hydrophobic grouping on the inside of cyclodextrin circulus and carboxyl in acrylic acid
Form the weak forces such as hydrogen bond and combine to form cyclodextrin super absorbent resin.Reaction equation is as follows：
Starch must be gelatinized before graft reaction is carried out.Amylum body is at moderate temperatures, swelling in water, division,
The process for forming uniform pasty solutions is referred to as gelatinization.Molecule chain-unfolding after starch gelatinization, becomes than more uniform pasty state glue
Body, for water miscible monomer and initiator, can improve the compatibility between monomer, initiator after starch gelatinization, make monomer point
Son is diffused more readily into around starch polymer, contributes to reaction system uniformity, so as to be conducive to graft copolymerization.Starch
Gelatinization by heating (physical action) and can add alkali (chemical action) to make starch gelatinization.
Starch is used plus alkali gelatinization in step a in the preparation method of cyclodextrin super absorbent resin of the present invention, and with
Starch after gelatinization is Material synthesis high hydroscopic resin, overcomes the shortcoming of heat gelatinization, without the need for heating, can be carried out under normal temperature；
Gelatinization speed is fast, few with short production cycle during consumption energy consumption；Gelatinization point is easy to control, it is to avoid the too high starch for causing of local temperature is rapid
The too low starch gelatinization of aging and local temperature not exclusively causes the not good problem of graft product performance.Shallow lake after to add alkali gelatinization
Powder is stablized for the high hydroscopic resin water absorption rate of Material synthesis, reproducible.
In some embodiments, alkali described in step a in the preparation method of cyclodextrin super absorbent resin of the present invention
Liquid is NaOH or potassium hydroxide.
In some embodiments, alkali described in step a in the preparation method of cyclodextrin super absorbent resin of the present invention
Liquid concentration is 0.5mol/L.
In some embodiments, in the preparation method of cyclodextrin super absorbent resin of the present invention described in step a
It is logical nitrogen protection under inert gas shielding.
Due to cyclodextrin, solubility is less in water, if cyclodextrin is added together with acrylic acid, cyclodextrin can not be with third
Olefin(e) acid is sufficiently mixed uniformly, is unfavorable for follow-up graft polymerization reaction.But cyclodextrin is stable in alkali, and it is heated more than 200 DEG C
Can decompose, and strong acid cracks can it.Therefore, the preparation method of cyclodextrin super absorbent resin of the present invention is in starch gelatinization
Front addition cyclodextrin.During alkali gelatinized starch, cyclodextrin will not occur wherein chemical change.And during starch gelatinization, form sediment
Powder chain ruptures, and unfolds, and by the continuous mechanical agitation of solution, making cyclodextrin extensively be dispersed in solution, after being easy to
Continuous reaction is physical crosslinking.
Due to acrylic monomers (C2H2COOH carboxyl-content is high in), completely using acrylic monomers as graft side chain, third
Easily grafting forms the hydrogen bond of interchain while there is self-crosslinking reaction between acrylic monomer, causes synthetic product spacial framework
There is excessively crosslinking, network is excessively intensive, and inner space is limited, cause to be difficult to expand when adsorption fertilizer small molecule and moisture
, adsorbance is limited.
Step b is added dropwise during alkali lye carries out in acrylic acid in the preparation method of cyclodextrin super absorbent resin of the present invention
With obtain acrylic acid/acrylates mixed solution, it is to avoid the degree of cross linking is too high to affect the absorption of fertilizer small molecule and moisture.
In some embodiments, alkali described in step b in the preparation method of cyclodextrin super absorbent resin of the present invention
Liquid is NaOH or potassium hydroxide.
In some embodiments, alkali described in step b in the preparation method of cyclodextrin super absorbent resin of the present invention
Liquid concentration is about 3mol/L.
In some embodiments, in the preparation method of cyclodextrin super absorbent resin of the present invention described in step b
The degree of neutralization of sum is 50%-70%.50%-70% i.e. in acrylic acid is neutralized to acrylates, the acrylic acid and propylene
The mol ratio of hydrochlorate is 1:1-3:7.
In some preferred embodiments, step b institute in the preparation method of cyclodextrin super absorbent resin of the present invention
The degree of neutralization for stating neutralization is 60%.
In some embodiments, step b is added dropwise alkali in the preparation method of cyclodextrin super absorbent resin of the present invention
During liquid is neutralized, need to control alkali lye addition speed, it is to avoid alkali lye is released a large amount of thermal conductivities and causes acrylic acid auto polymerizations.
Preparation method step c of cyclodextrin super absorbent resin of the present invention causes gelatinized starch and third using initiator
Olefin(e) acid/acrylates glycerol polymerization.
In some embodiments, draw described in step c in the preparation method of cyclodextrin super absorbent resin of the present invention
Send out the mixture that agent is a kind of and sodium hydrogensulfite composition in potassium peroxydisulfate, ammonium persulfate or ammonium nitrate.
In certain embodiments, in the preparation method of cyclodextrin super absorbent resin of the present invention described in step c
Initiator is potassium peroxydisulfate and sodium hydrogensulfite, belongs to redox initiation system.Redox initiation system usually needs
Oxidizing and Reducing Agents is combined, and free radical can be just produced in low temperature so as to cause polymerization.In the present invention, potassium peroxydisulfate is oxygen
Agent, and sodium hydrogensulfite is reducing agent, they constitute one group of redox initiator.Potassium peroxydisulfate and sodium hydrogensulfite can
Being produced with there is redox reaction can cause the free radical of polymerization, poly- so as to cause acrylic acid (sodium) and starch to carry out grafting
Close.
In some embodiments, in the preparation method of cyclodextrin super absorbent resin of the present invention described in step c
It is logical nitrogen protection under inert gas shielding.
In some embodiments, it is anti-described in step c in the preparation method of cyclodextrin super absorbent resin of the present invention
Temperature is answered to be 50 DEG C -55 DEG C.
In some embodiments, it is anti-described in step c in the preparation method of cyclodextrin super absorbent resin of the present invention
First temperature should be set in into 50 DEG C, again temperature 55 DEG C are adjusted to into when temperature rises to 50 DEG C, can avoid because buffer temperature it is too high and
The polymerization speed for causing is too fast.
When cyclodextrin super absorbent resin of the present invention is used to prepare wheat Chemical Mixed Fertilizer, solution need not make after polymerisation
Purified with organic solvent, directly can mix with complex fertilizer and make fertilizer.Because super absorbent resin lipoprotein solution has a certain viscosity, therefore can be with
Improve complex fertilizer balling ratio.Simultaneously production cost is saved, simplified production technology.Have in terms of slow-release compound and mixed fertilizer is made
Very strong using value.
The preparation method of cyclodextrin super absorbent resin of the present invention is simple to operate, and with low cost, environmental protection has
Very high using value and market prospects.
Wheat Chemical Mixed Fertilizer of the present invention also includes organic-inorganic compound fertilizer.
In some embodiments, compound organic and inorganic fertilizer described in wheat Chemical Mixed Fertilizer of the present invention includes nitrogen, phosphorus, potassium
And composite trace element.
Wherein, in some embodiments, N in compound organic and inorganic fertilizer of the present invention:P2O5:K2O weight ratio is (16-
27):(8-16):(7-12).Preferably N:P2O5:K2O weight ratio is (18-26):14:8.More preferably 26:14:8.
N in the compound organic and inorganic fertilizer in certain embodiments:P2O5:K2O is 18:14:8.In some concrete realities
Apply described in example N in compound organic and inorganic fertilizer:P2O5:K2O is 22:14:8.The organic and inorganic compound in certain embodiments
N in complex fertilizer:P2O5:K2O is 26:14:8.
Nitrogen described in compound organic and inorganic fertilizer of the present invention exists with amidonitrogen or ammonium nitrogen form.As wherein with urine
The amidonitrogen that prime form is present；There is ammonium nitrogen with ammonium chloride, ammonium sulfate, MAP, ammonium hydrogen carbonate or ammonium nitrate form.
In some embodiments, nitrogen described in compound organic and inorganic fertilizer of the present invention for urea, ammonium chloride, sulfuric acid
One or more in ammonium, MAP, ammonium hydrogen carbonate or ammonium nitrate.
In some embodiments, the existence form of phosphorus described in compound organic and inorganic fertilizer of the present invention is phosphoric acid one
Ammonium.
In some embodiments, the existence form of potassium described in compound organic and inorganic fertilizer of the present invention is potassium chloride.
In some embodiments, composite trace element described in compound organic and inorganic fertilizer of the present invention include zinc, manganese,
One or more in boron, copper, iron or fulvic acid.
In some embodiments, trace element is micro- with amino-acid complex described in compound organic and inorganic fertilizer of the present invention
Secondary element, can not only improve crops and trace element is absorbed, while amino acid itself can also be absorbed by crops,
It is pollution-free.
In some preferred embodiments, zinc, manganese, copper, iron described in compound organic and inorganic fertilizer of the present invention are with amino
Acid salts are present.
In some preferred embodiments, boron is present as boric acid described in compound organic and inorganic fertilizer of the present invention.
In certain embodiments, compound organic and inorganic fertilizer of the present invention is by potassium chloride, MAP, urea, chlorination
Ammonium, ammonium hydrogen carbonate, composite trace element and super absorbent resin composition.
In certain preferred embodiments, the composite trace element is by amino-acid zinc, manganese amino acid, boric acid, amino acid
Copper, amino acid iron, fulvic acid composition.
In certain embodiments, wheat Chemical Mixed Fertilizer of the present invention is made up of following raw material：
60% 135 parts of potassium chloride, 57% 305 parts of MAP, 46.2% 475 parts of urea, 23.5% 25 parts of ammonium chloride, carbon
40 parts of sour hydrogen ammonium, 30 parts of composite trace element, 30 parts of super absorbent resin.
In certain embodiments, composite trace element described in wheat Chemical Mixed Fertilizer of the present invention is by amino-acid zinc, ammonia
Base acid manganese, boric acid, amino acid copper, amino acid iron, fulvic acid composition.
Further, in certain embodiments, ammonia in composite trace element described in wheat Chemical Mixed Fertilizer of the present invention
Base acid zinc, manganese amino acid, boric acid, amino acid copper, amino acid iron, the weight ratio of fulvic acid are 10:7:5:1:3:4.
Present invention also offers the preparation method of wheat Chemical Mixed Fertilizer of the present invention is super absorbent resin and organic-inorganic
Complex fertilizer mixing granulation.
In some embodiments, the preparation method of wheat Chemical Mixed Fertilizer of the present invention is heated to 85 for super absorbent resin
DEG C insulation, in atomized spray to the compound organic and inorganic fertilizer, granulation.
The invention provides wheat Chemical Mixed Fertilizer includes super absorbent resin and organic-inorganic compound fertilizer.Wherein organic-inorganic
Complex fertilizer can effectively supplement the nutrient of Wheat Production, and super absorbent resin has water conservation and function of fertilizer retention, with organic-inorganic
Complex fertilizer hybrid energy effectively improves fertiliser granulates intensity and balling ratio, reducing energy consumption.Wheat Chemical Mixed Fertilizer water conservation of the present invention,
Fertilizer conservation effect is good, can reduce pouring number of times, single fertilization, it is not necessary to topdress, and saves labor, while make wheat increase yield, increase income,
It is suitable for simple economized planting patterns.The preparation method process is simple of wheat Chemical Mixed Fertilizer of the present invention, raw material sources are wide,
It is with low cost.
For a further understanding of the present invention, with reference to embodiment, the present invention is described in detail.If no special instructions
The each raw material for preparing cyclodextrin super absorbent resin and each raw material for preparing wheat Chemical Mixed Fertilizer are commercially available prod, can be by business
Channel is commercially available.
The preparation of embodiment 1, cyclodextrin super absorbent resin of the present invention
1st, by 10.0g cornstarch, 0.1g beta-schardinger dextrins are added in 100ml four-hole boiling flasks, are subsequently adding 40ml distillations
Water, while starting electric stirring；
2nd, 20ml distilled water is taken, in being positioned over 50ml beakers, 0.5g NaOH is weighed and is put in the beaker, jog beaker
Allow NaOH to be completely dissolved, be configured to the sodium hydroxide solution that concentration is 0.5mol/L.The solution is positioned in fume hood
Cooled down；The sodium hydroxide solution that will be cooled to room temperature is stirred for down being slowly added in four-hole boiling flask, carries out the paste of starch
Change；A straight-through nitrogen protection during being somebody's turn to do；
3rd, 22ml distilled water is measured, in being positioned over 50ml beakers, 2.6g NaOH is weighed and is put in the beaker, jog burns
Cup allows NaOH to be completely dissolved, and is configured to the sodium hydroxide solution of 3.1mol/L.The solution is positioned in fume hood to be carried out
Cooling；
4th, 10ml acrylic acid is measured with measuring cup, in being positioned over 100ml beakers, by the sodium hydroxide solution after cooling down in 3.3
It is slowly dropped under agitation in acrylic acid, prepared degree of neutralization is 60% acrylic acid/sodium solution；Control adds speed to put
Go out a large amount of thermal conductivities cause acrylic acid auto polymerizations, it is stand-by that the mixture is cooled to room temperature by addition after finishing；
5th, 8ml distilled water is measured, in being positioned over 50ml beakers, 0.1g potassium peroxydisulfates is weighed and is put in the beaker, use glass
Rod stirring allows it to be completely dissolved；
6th, 8ml distilled water is measured, in being positioned over 50ml beakers, 0.08g sodium hydrogensulfites is weighed and is put in the beaker, jog
Beaker is completely dissolved by it；
7th, successively acrylic acid/sodium mixed liquor, potassium persulfate solution, solution of sodium bisulfite be poured slowly into and be cooled to room temperature
Reaction system in, continue to stir 30min to being well mixed, nitrogen protection is led in whole process；It is warming up to 55 DEG C and keeps 2 little
When.First temperature can be set in into 50 DEG C during intensification, there must be buffering when temperature rises to 50 DEG C, now again temperature is adjusted to into 55 DEG C,
The polymerization speed caused because buffering temperature and being too high can be avoided too fast；
8th, reacted viscous fluid is poured in 250ml beakers, stirring is lower to add the absolute ethyl alcohol of 2 times of volumes to be sunk
Form sediment, now have white sticky Precipitation, reuse absolute ethanol washing 2-3 time, obtain white solid sample；Sample is used
Scissors is shredded, and 24h is vacuum dried at 60 DEG C, and 1min is crushed at a high speed with Universalpulverizer after taking-up, obtain white powder i.e. this
The bright super absorbent resin, takes out rear enclosed and preserves.
For preparing during wheat Chemical Mixed Fertilizer, solution is purified without using organic solvent after polymerisation, can directly and compound
Fertilizer is made in fertilizer mixing.Because super absorbent resin lipoprotein solution has certain viscosity, therefore can improve complex fertilizer balling ratio.Save simultaneously
Production cost, simplifies production technology.There is very strong using value in terms of slow-release compound and mixed fertilizer is made.
The formula table of embodiment 2 to each wheat Chemical Mixed Fertilizer of embodiment 10, total nutrient content, granulation balling ratio
Wheat Chemical Mixed Fertilizer is prepared according to table 1 below formula.The super absorbent resin of embodiment 2- embodiment 4 is purchased from Anhui profit peace collection
Group, embodiment 5 to the high hydroscopic resin of embodiment 7 is resin prepared by embodiment 1.Composite trace element by amino-acid zinc 10kg,
Manganese amino acid 7kg, boric acid 5kg, amino acid copper 1kg, amino acid iron 3kg, fulvic acid 4kg composition.
Wheat Chemical Mixed Fertilizer preparation method：Potassium chloride, MAP, urea, ammonium chloride, ammonium hydrogen carbonate, composite trace element
Each raw material is crushed Jing after measuring belt presses recipe requirements metering, mixing, then is transported in rotary drum granulator, and logical steam is rotated to be made
Grain；Super absorbent resin is heated to into 85 DEG C of insulations in storage tank, is got in comminutor by recipe requirements by measuring pump, with pressure
Contracting air atomized spray rotates granulation on organic-inorganic compound fertilizer, and the wheat complex fertilizer for having granulated is Jing after Two stage dryer
Cooling, screening, anti-caking process, metering, packaging.
The assay method of granulation balling ratio：Take comminutor outlet Chemical Mixed Fertilizer 1000g or so at random, in 85 DEG C of electric heating air blast do
Dry in dry case, Jing riffle samplers division after cooling, then weigh 100g samples is carried out by GB15063-2009 appendix As.The results are shown in Table
1。
Finished particle intensity is more than 29 newton, and intensity is high.
The wheat Compound Mixed Fertilizer Formula of table 1, total nutrient content, granulation balling ratio
Embodiment 11, manure trial
1. materials and methods
1.1 experimental field overviews
Experimental field positioned at the willow agricultural sciences experiment centre in Anhui Suixi County Sun Tuan towns willow village, set up in 1981.Soil
Earth is Shajiang black soil, and quality belongs to clay loam, middle fertility.Front stubble soybean, yield 1605kg/hm2.Experimental field topsoil (0～
20cm) content of organic matter 20.45g/kg, full nitrogen 0.98g/kg, alkali-hydrolyzable nitrogen 74mg/kg, available phosphorus (P2O5) 23.6mg/kg, it is quick-acting
Potassium (K2O)127mg/kg。
1.2 experimental design
Test sets 14 process.In addition to space management, 1 is processed to 12 Chemical Mixed Fertilizers are processed and be all 750kg/ by dose
hm2, base applies.Wheat Chemical Mixed Fertilizer of the present invention has 2 kinds of 6 formulas (i.e. 2 kinds each 3 of super absorbent resins are filled a prescription), whole bases
Apply.It is concrete to process such as table 2：
The fertilizer applications of the different disposal of table 2
| Numbering | Process | Fertilization mode | Remarks |
| 1 | Wheat Chemical Mixed Fertilizer described in embodiment 2 | Base is applied | Formula N:P2O5:K2O=18:14:8 |
| 2 | Wheat Chemical Mixed Fertilizer described in embodiment 3 | Base is applied | Formula N:P2O5:K2O=22:14:8 |
| 3 | Wheat Chemical Mixed Fertilizer described in embodiment 4 | Base is applied | Formula N:P2O5:K2O=26:14:8 |
| 4 | Wheat Chemical Mixed Fertilizer described in embodiment 5 | Base is applied | Formula N:P2O5:K2O=18:14:8 |
| 5 | Wheat Chemical Mixed Fertilizer described in embodiment 6 | Base is applied | Formula N:P2O5:K2O=22:14:8 |
| 6 | Wheat Chemical Mixed Fertilizer described in embodiment 7 | Base is applied | Formula N:P2O5:K2O=26:14:8 |
| 7 | Common Chemical Mixed Fertilizer described in embodiment 8 | Base is applied | Formula N:P2O5:K2O=18:14:8 |
| 8 | Common Chemical Mixed Fertilizer described in embodiment 9 | Base is applied | Formula N:P2O5:K2O=22:14:8 |
| 9 | Common Chemical Mixed Fertilizer described in embodiment 10 | Base is applied | Formula N:P2O5:K2O=26:14:8 |
| 10 | Common Chemical Mixed Fertilizer described in embodiment 8 | Base:Chase after=6:4 | Formula N:P2O5:K2O=11:14:8 |
| 11 | Common Chemical Mixed Fertilizer described in embodiment 9 | Base:Chase after=6:4 | Formula N:P2O5:K2O=13:14:8 |
| 12 | Common Chemical Mixed Fertilizer described in embodiment 10 | Base:Chase after=6:4 | Formula N:P2O5:K2O=16:14:8 |
| 13 | CKN0 | Do not apply nitrogen- | |
| 14 | CK | - |
Note：Base:Chase after=6:4 is phosphorus, potassium whole base is applied, and nitrogen base applies 60%, and remaining 40% nitrogen is imposed.Wherein process 10 and chase after urine
Plain 15.2kg, processes 11 and chases after urea 19.5kg, processes 12 and chases after urea 21.6kg.
1.3 trials and growth period climatic characteristic
Rear rotary tillage was ploughed deeply in experimental plot on October 4th, 2013, according to design requirement partition.The subregion of October 15 applies fertilizer, people
Work is turned over；Artificial trench digging band water bar is broadcast.Broadcast rear knapsack sprayer and spray phoxim preventing and treating subterranean pest-insect.Micro- spray 40min on the 22nd.
Spray within 2 23rd, 2014 superstar and prevent and kill off the broad leaved weeds such as clearvers, March 12 imposed jointing fertilizer, and common fertilizer area is irrigated once,
Wheat Chemical Mixed Fertilizer area of the present invention does not topdress, irrigates；It is withered that April 17 sprayed jinggangmycin, carbendazim, Yamanjing preventing and treating line
The pest and disease damages such as disease, head blight, wheat aphid, weed out the rank grass, and the fixed point sample strain of May 30 is fetched for indoor species test, and June 3 is artificial complete
Area harvests.Thresing machine scene threshing, produced in fact title, surveyed mass of 1000 kernel.Foliage fertilizer and plant growth is not used to adjust in whole breeding time
Section agent.
10.2 DEG C of Suixi County 31 daily mean temperature of May -2014 years on the 11st October in 2013, than over the years average 9.1 DEG C high by 1.1
℃.Precipitation 204.2mm, 48.1mm fewer than averagely 252.3mm over the years.Sunshine time 1480.5h, than average 1374.9h over the years
Many 105.6h.Temperature is lasting higher after wheat is turned green, and ears, blooms in advance, and the pustulation period extends.Jointing-heading precipitation is on the low side, fills
Slurry phase weather conditions are superior.
2 results and analysis
Impact of the 2.1 wheat Chemical Mixed Fertilizers of the present invention to wheat yield
Result of the test shows that the yield on experimental plot (processing 14) ground is 7492.8kg/hm2, do not apply nitrogen (processing 13) yield
7936.8kg/hm2.Common fertilizer whole base applies 9120.1～9489.9kg/hm of yield2, base 6:Chase after 4 process 9677.9～
9963.8kg/hm2, wheat Chemical Mixed Fertilizer process 9715.5～10149.4kg/hm of each group2, wheat Chemical Mixed Fertilizer wherein described in embodiment 4
(processing 3), wheat Chemical Mixed Fertilizer described in embodiment 7 (processing 6) process yield and break through 10000kg/hm2.Wheat of the present invention is answered
Complex fertilizer process applies process volume increase volume increase 3.99%～7.90% than the base of equal dose；(the place of wheat Chemical Mixed Fertilizer described in embodiment 2
Manage the base 6 of 1) more identical dose:4 (processing 10) underproduction 0.79% are chased after, remaining wheat Chemical Mixed Fertilizer of the present invention processes relatively phase
With the base 6 of dose:Chase after 4 process and increase production 0.49%～3.15% (being shown in Table 3).
The Yield compari@of the different disposal of table 3
| Numbering | Process | Yield (kg/hm2) | Precedence | Apply ± (%) compared with base | Compared with base 6:Chase after 4 ± (%) |
| 1 | Wheat Chemical Mixed Fertilizer described in embodiment 2 | 9715.5 | 8 | 6.53 | -0.79 |
| 2 | Wheat Chemical Mixed Fertilizer described in embodiment 3 | 9863.5 | 5 | 3.99 | 1.92 |
| 3 | Wheat Chemical Mixed Fertilizer described in embodiment 4 | 10125.0 | 2 | 6.69 | 1.62 |
| 4 | Wheat Chemical Mixed Fertilizer described in embodiment 5 | 9840.5 | 6 | 7.90 | 0.49 |
| 5 | Wheat Chemical Mixed Fertilizer described in embodiment 6 | 9982.5 | 3 | 5.24 | 3.15 |
| 6 | Wheat Chemical Mixed Fertilizer described in embodiment 7 | 10149.4 | 1 | 6.95 | 1.86 |
| 7 | Common Chemical Mixed Fertilizer described in embodiment 8 | 9120.1 | 12 | ||
| 8 | Common Chemical Mixed Fertilizer described in embodiment 9 | 9485.3 | 11 | ||
| 9 | Common Chemical Mixed Fertilizer described in embodiment 10 | 9489.9 | 10 | ||
| 10 | Common Chemical Mixed Fertilizer described in embodiment 8 | 9792.8 | 7 | ||
| 11 | Common Chemical Mixed Fertilizer described in embodiment 9 | 9677.9 | 9 | ||
| 12 | Common Chemical Mixed Fertilizer described in embodiment 10 | 9963.8 | 4 | ||
| 13 | CKN0 | 7936.8 | 13 | ||
| 14 | CK0 | 7492.8 | 14 |
3 process average products of wheat Chemical Mixed Fertilizer of the different super absorbent resins of addition are close, and than whole bases 3 process are applied
Average volume increase 5.73%, 6.68%, illustrates that wheat Chemical Mixed Fertilizer controlled-release effect of the present invention is obvious.Than base 6:Chase after 4 process average
Volume increase 0.92%, 1.83%, but the two difference is not notable, illustrates wheat Chemical Mixed Fertilizer of the present invention relative to imposing at jointing fertilizer
Slightly increase production for reason, in this sense, wheat Chemical Mixed Fertilizer of the present invention can substitute jointing fertilizer as base manure, and saving of labor saves
Power.
Impact of 2.2 Chemical Mixed Fertilizers of the present invention to thousand grain weight of wheat
Thousand quality of the different type fertilizer of table 4
The wheat Chemical Mixed Fertilizer 3 of the different super absorbent resins of addition process average thousand quality be respectively 46.69g,
46.89g, applying process than whole bases averagely increases respectively 0.91g, 1.11g；Wheat Chemical Mixed Fertilizer 3 described in embodiment of the present invention 2-4
Average thousand quality are processed than base 6:Chasing after 4 process averagely increases 0.17g；At wheat Chemical Mixed Fertilizer described in embodiment of the present invention 2-4 3
Equal thousand quality are patted than base 6:Chasing after 4 process averagely increases 0.37g (table 4).Show wheat complex fertilizer fertilizer of the present invention
Relatively persistently, the wheat Chemical Mixed Fertilizer fertilizer efficiency persistence for adding cyclodextrin super absorbent resin is little better than addition super absorbent resin for effect
Wheat Chemical Mixed Fertilizer.
There are the above results to understand that under the conditions of identical amount of nitrogen, it is same that wheat Chemical Mixed Fertilizer of the present invention manages everywhere average specific
Deng amount of nitrogen whole base apply process increase production, with base 6:Chasing after 4 process, to compare the two difference not notable, illustrates wheat of the present invention
Chemical Mixed Fertilizer saves labor for imposing jointing fertilizer and processing, and cost-saving synergistic, wheat yield slightly increases production.It is of the present invention little
A water is poured less in the more common fertilization area of wheat Chemical Mixed Fertilizer, and yield is also increased production, and illustrates that wheat Chemical Mixed Fertilizer of the present invention has water conservation
Function.Generally speaking, wheat Chemical Mixed Fertilizer of the present invention can play a part of cost-saving synergistic as base manure applied once, and in control
Widespread pollution from the overuse of fertilizers and pesticides in rural area processed, environmental protection aspect shows certain advantage.
Claims (10)
1. a kind of wheat Chemical Mixed Fertilizer, is made up of super absorbent resin and organic-inorganic compound fertilizer, and the super absorbent resin is
Be made up of with the graft polymers and cyclodextrin of acrylic monomers starch, the graft polymers of the starch and acrylic monomers with
The cyclodextrin is connected by the hydrogen bond that the hydrophobic region inside cyclodextrin empty structure is formed with the carboxyl in acrylic acid.
2. wheat Chemical Mixed Fertilizer according to claim 1, the matter of the organic-inorganic compound fertilizer and the super absorbent resin
Amount is than being 96～105:4～1.
3. wheat Chemical Mixed Fertilizer according to claim 2, the matter of the organic-inorganic compound fertilizer and the super absorbent resin
Amount is than being 101:3～103:3.
4. wheat Chemical Mixed Fertilizer according to claim 1, the starch has shown in Formulas I with the graft polymers of acrylic monomers
Structure,
Wherein ， ﹏ are starch chains；X is the quantity of sodium acrylate monomers on polymer graft side chain, and y is on polymer graft side chain
The quantity of acrylic monomers.
5. the wheat Chemical Mixed Fertilizer according to claim 1-4 any one, the compound organic and inorganic fertilizer include nitrogen, phosphorus, potassium and
Composite trace element.
6. wheat Chemical Mixed Fertilizer according to claim 5, N in the compound organic and inorganic fertilizer:P2O5:K2O weight ratio is (16-
27):(8-16):(7-12)。
7. wheat Chemical Mixed Fertilizer according to claim 5, the existence form of the nitrogen is urea, ammonium chloride, ammonium sulfate, phosphoric acid one
One or more in ammonium, ammonium hydrogen carbonate or ammonium nitrate；The existence form of the phosphorus is MAP；The existence form of the potassium
For potassium chloride；The composite trace element includes one or more in zinc, manganese, boron, copper, iron or fulvic acid.
8. the wheat Chemical Mixed Fertilizer according to claim 1-7 any one, it is made up of following raw material：
60% 135 parts of potassium chloride, 57% 305 parts of MAP, 46.2% 475 parts of urea, 23.5% 25 parts of ammonium chloride, bicarbonate
40 parts of ammonium, 30 parts of composite trace element, 30 parts of super absorbent resin.
9. wheat Chemical Mixed Fertilizer according to claim 7, the composite trace element is by amino-acid zinc, manganese amino acid, boric acid, ammonia
Base acid copper, amino acid iron, fulvic acid composition；Amino-acid zinc in the composite trace element, manganese amino acid, boric acid, amino acid copper,
Amino acid iron, the weight ratio of fulvic acid are 10:7:5:1:3:4.
10. a kind of preparation method of wheat Chemical Mixed Fertilizer described in claim 1, super absorbent resin is mixed with organic-inorganic compound fertilizer
Close granulation.
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