CN106187412A - One cultivates peanut Special slow release fertilizer and preparation method thereof - Google Patents
One cultivates peanut Special slow release fertilizer and preparation method thereof Download PDFInfo
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- CN106187412A CN106187412A CN201610495880.3A CN201610495880A CN106187412A CN 106187412 A CN106187412 A CN 106187412A CN 201610495880 A CN201610495880 A CN 201610495880A CN 106187412 A CN106187412 A CN 106187412A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- 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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Abstract
The present invention discloses one and cultivates peanut Special slow release fertilizer and preparation method thereof, and described Semen arachidis hypogaeae Special slow release fertilizer includes rich in N P and K and the Chemical Mixed Fertilizer of trace element, coated fertilizer chitosan.Rational proportion N P and K of the present invention and the requisite trace element of plant growth, chitosan has facilitation as coated fertilizer to root absorption fertility, prevent the invalid loss of nutrient or invalid release, extend fertilizer efficiency, compared with prior art can be by the output increased 10～15% of Semen arachidis hypogaeae, environmental friendliness of the present invention, it is achieved sustainable green planting, has application prospect in peanut cultivation field.
Description
Technical field
The present invention relates to one cultivate peanut Special slow release fertilizer and preparation method thereof, be specifically related to a kind of Semen arachidis hypogaeae based on chitosan
Special slow release fertilizer and preparation method thereof.
Background technology
Semen arachidis hypogaeae has another name called Semen arachidis hypogaeae, belongs to Papilionaceae Arachis annual herb plant, belongs to the oil that China is main at present
Material crop and industrial crops.
Semen arachidis hypogaeae oil content is up to 50%, best in quality, abnormal smells from the patient delicate fragrance.In addition to edible, it is additionally operable to printing and dyeing, paper industry.
Semen arachidis hypogaeae is also a herb simultaneously, is suitable for malnutrition, taste imbalance, the cough disease such as phlegm dyspnea, hypogalactia.
During peanut cultivation, use chemical fertilizer exactly, to provide peanut growth mistake for improving the most direct means of yield
Various nutrition in journey, the nutrient that a small amount of chemical fertilizer provides can meet the needs of peanut growth at short notice, but want full
Foot the whole growth course of Semen arachidis hypogaeae demand will long-term fertilization or heavy dressing, not only cause chemical fertilizer utilization ratio on the low side, also can draw
Play soil aggregate to be destroyed, easily cause soil compaction, soil property hardening, thus affect peanut growth.Utilization rate of fertilizer is low
Not only cause the huge waste of resource, return the environment that the mankind depend on for existence and cause severe contamination.How to improve chemical fertilizer
Utilization rate, reduce chemical fertilizer pollution on the environment, sustainable development high-efficiency agriculture has become what countries in the world were paid close attention to jointly
Problem, since 20 century 70s, the research of slow-release fertilizer and utilize the focus having become world fertilizer research, but prior art
In not for the slow-release fertilizer that peanut cultivation is special, the most do not utilize chitosan as the peplos of slow-release fertilizer, at slow-release fertilizer
The growth of peanut nodule can also be promoted simultaneously thus promote the absorption of nutrient.
Summary of the invention
Defect based on prior art, the purpose of first aspect present invention is to provide one and cultivates peanut Special slow release fertilizer, including
Base manure type slow-release fertilizer and topdress type slow-release fertilizer, described base manure type slow-release fertilizer is that base fertilizer applies at peanut seeding previous crops, directly with
Peanut seed contacts；The described slow-release fertilizer that topdresses is disposably to apply in the Semen arachidis hypogaeae floricome phase.
Described base manure type slow-release fertilizer includes chitosan and base manure type Chemical Mixed Fertilizer, and the two mass ratio is 1:3～5, preferably 1:4,
Described base manure type Chemical Mixed Fertilizer is by chitosan coated.Composition and the parts by weight of described base manure type Chemical Mixed Fertilizer are: 100 parts of carbamide, carbon
Acid hydrogen ammonium 10～30 parts, ammonium hydrogen carbonate 5～15 parts, calcium nitrate 2～8 parts, Diammonium phosphate (DAP) 80～120 parts, calcium magnesium phosphate 5～15
Part, potassium sulfate 80～120 parts, zinc ammonium phosphate 2～8 parts, potassium silicate 2～8 parts, Borax 2～8 parts, manganese sulfate 2～8 parts, sodium molybdate
2～8 parts, ethylenediaminetetraacetic acid ferrum 2～8 parts.
Further, composition and the parts by weight of described base manure type Chemical Mixed Fertilizer are: 100 parts of carbamide, ammonium hydrogen carbonate 15～25
Part, ammonium hydrogen carbonate 8～12 parts, calcium nitrate 3～6 parts, Diammonium phosphate (DAP) 90～110 parts, calcium magnesium phosphate 8～12 parts, potassium sulfate 90～
110 parts, zinc ammonium phosphate 3～6 parts, potassium silicate 3～6 parts, Borax 3～6 parts, manganese sulfate 3～6 parts, sodium molybdate 3～6 parts, ethylenediamine
Ferric acetate 3～6 parts.
Further, composition and the parts by weight of described base manure type Chemical Mixed Fertilizer are: 100 parts of carbamide, ammonium hydrogen carbonate 20 parts,
Ammonium hydrogen carbonate 10 parts, calcium nitrate 5 parts, Diammonium phosphate (DAP) 100 parts, 10 parts of calcium magnesium phosphate, potassium sulfate 100 parts, zinc ammonium phosphate 5 parts, silicon
Acid 5 parts of potassium, Borax 5 parts, manganese sulfate 5 parts, sodium molybdate 5 parts, ethylenediaminetetraacetic acid ferrum 5 parts.
The described type slow-release fertilizer that topdresses includes chitosan and the type Chemical Mixed Fertilizer that topdresses equally, and the two mass ratio is 1:8～10, preferably
1:9, described in topdress type Chemical Mixed Fertilizer by chitosan coated.
Composition and the parts by weight of the described type Chemical Mixed Fertilizer that topdresses are: 100 parts of carbamide, potassium dihydrogen phosphate 30～70 parts, cross phosphorus
Acid calcium 5～15 parts.
Further, composition and the parts by weight of the type that topdresses described in Chemical Mixed Fertilizer are: 100 parts of carbamide, potassium dihydrogen phosphate 40～
60 parts, calcium superphosphate 7～12 parts.
Further, composition and the parts by weight of the type that topdresses described in Chemical Mixed Fertilizer are: 100 parts of carbamide, potassium dihydrogen phosphate 50
Part, calcium superphosphate 10 parts.
The purpose of second aspect present invention, the preparation method being to provide described Semen arachidis hypogaeae Special slow release fertilizer is:
(1) Chemical Mixed Fertilizer mixing: Chemical Mixed Fertilizer is mixed with chelating agent by the parts by weight of base manure Chemical Mixed Fertilizer or the Chemical Mixed Fertilizer that topdresses
Uniformly, obtain the mixture of Chemical Mixed Fertilizer and chelating agent, the mixture of described Chemical Mixed Fertilizer Yu chelating agent is placed in rotating disk.
(2) chitosan melts: chitosan is heated to 200～230 DEG C, and chitosan is completely melt, but bar of not up to degrading
Part；Described heating-up temperature preferably 206 DEG C.
Chitosan in one embodiment of the invention measures through DSC, and vitrification point is 82.6 DEG C, fusing point 195.3 DEG C, from
Degradation temperature is 304.5 DEG C.
(3) chitosan coated Chemical Mixed Fertilizer: after chitosan is completely melt, unlocking turntable, chitosan is sprayed in rotating disk
Chemical Mixed Fertilizer, with the mixture of chelating agent, is simultaneously introduced binding agent and sealer, is rotated further rotating disk to urea coated complete, i.e.
Obtain chitosan coated Chemical Mixed Fertilizer；The slewing rate of described rotating disk is 5000～8000rpm.
(4) post processing: chitosan coated Chemical Mixed Fertilizer is dried, cools down, sieves and obtain Semen arachidis hypogaeae Special slow release fertilizer.
Described chelating agent is: the combination of one or more in the pale brown acid of lignin, citric acid, tartaric acid.
Described binding agent is: the one or several in bentonite, zeolite, carboxyl methyl cellulose, dextrin, polyvinyl alcohol, starch
The combination planted.
Described sealer is: paraffin and/or Colophonium.
Described Chemical Mixed Fertilizer, chelating agent, binding agent, the mass ratio of sealer be: 100:5:1:1.
The molecular weight of described chitosan is less than 1 × 105, take the molecular weight of chitosan in one embodiment of the invention
It is 5.6 × 104, effect is preferable, and the molecular weight taking chitosan in one embodiment of the invention is 3.7 × 104, effect is managed
Think.If no special instructions, molecular weight of the present invention is weight average molecular weight.
The technique effect that a kind of based on chitosan the Semen arachidis hypogaeae Special slow release fertilizer that the present invention relates to reaches is: rational proportion nitrogen
Phosphorus potassium and the requisite trace element of plant growth, root absorption fertility is had promotion to make as coated fertilizer by chitosan
With, the strong absorbability of chitosan can prevent the invalid loss of nutrient or invalid release further；Chitosan is as coated fertilizer
Can effectively extend fertilizer efficiency, meet fertility needed for the whole growth cycle of Semen arachidis hypogaeae, chitosan can be degradable for water with carbon dioxide,
Environmental friendliness, it is achieved sustainable green planting, has application prospect in peanut cultivation field.
Detailed description of the invention
Below by specific embodiment, further technical scheme is specifically described.It should be understood that below
Embodiment be intended only as illustrating, and do not limit the scope of the invention, those skilled in the art is according to the present invention simultaneously
Within the obvious change made and modification are also contained in the scope of the invention.
Embodiment 1
One cultivates peanut Special slow release fertilizer, including base manure type slow-release fertilizer and the type slow-release fertilizer that topdresses.Described base manure type slow-release fertilizer bag
Including chitosan and base manure type Chemical Mixed Fertilizer, the two mass ratio is 1:4, and described base manure type Chemical Mixed Fertilizer is by chitosan coated.Described base manure
The composition of type Chemical Mixed Fertilizer and parts by weight are: 100 parts of carbamide, ammonium hydrogen carbonate 20 parts, ammonium hydrogen carbonate 10 parts, calcium nitrate 5 parts, phosphoric acid
Diammonium 100 parts, 10 parts of calcium magnesium phosphate, potassium sulfate 100 parts, zinc ammonium phosphate 5 parts, potassium silicate 5 parts, Borax 5 parts, manganese sulfate 5 parts, molybdenum
Acid 5 parts of sodium, ethylenediaminetetraacetic acid ferrum 5 parts.
The type slow-release fertilizer of topdressing includes chitosan and the type Chemical Mixed Fertilizer that topdresses equally, and the two mass ratio is 1:9, described in the type that topdresses multiple
Complex fertilizer is by chitosan coated.Composition and the parts by weight of the described type Chemical Mixed Fertilizer that topdresses are: 100 parts of carbamide, potassium dihydrogen phosphate 50 parts,
Calcium superphosphate 10 parts.
The preparation method of Semen arachidis hypogaeae Special slow release fertilizer is:
(1) Chemical Mixed Fertilizer mixing: by Chemical Mixed Fertilizer by 100 weight portion base manure Chemical Mixed Fertilizers or topdress Chemical Mixed Fertilizer and 5 weight portion complexations
Agent mix homogeneously, obtains the mixture of Chemical Mixed Fertilizer and chelating agent, is placed in rotating disk by the mixture of described Chemical Mixed Fertilizer Yu chelating agent.
Described chelating agent is lignin and citric acid is mixed by the mass ratio of 1:1.
(2) chitosan melts: chitosan measures through DSC, and vitrification point is 82.6 DEG C, fusing point 195.3 DEG C, temperature of certainly degrading
Degree is 304.5 DEG C.Chitosan is heated to 206 DEG C, and chitosan is completely melt, but not up to degradation condition.Described chitosan
Molecular weight is 3.7 × 104。
(3) chitosan coated Chemical Mixed Fertilizer: after chitosan is completely melt, unlocking turntable, chitosan is sprayed in rotating disk
Chemical Mixed Fertilizer, with the mixture of chelating agent, is simultaneously introduced 1 parts by weight binder and 1 weight portion sealer, is rotated further rotating disk extremely
Urea coated complete, i.e. obtain chitosan coated Chemical Mixed Fertilizer；The slewing rate of described rotating disk is 7000rpm.Described binding agent is
The mixture that bentonite, dextrin and starch are mixed to get by the mass ratio of 1:1:1, described sealer is that paraffin and Colophonium are by 2:1
The mixture that is mixed to get of mass ratio.
(4) post processing: chitosan coated Chemical Mixed Fertilizer is dried, cools down, sieves and obtain Semen arachidis hypogaeae Special slow release fertilizer.
Embodiment 2
One cultivates peanut Special slow release fertilizer, including base manure type slow-release fertilizer and the type slow-release fertilizer that topdresses.Described base manure type slow-release fertilizer bag
Including chitosan and base manure type Chemical Mixed Fertilizer, the two mass ratio is 1:5, and described base manure type Chemical Mixed Fertilizer is by chitosan coated.Described base manure
The composition of type Chemical Mixed Fertilizer and parts by weight are: 100 parts of carbamide, ammonium hydrogen carbonate 30 parts, ammonium hydrogen carbonate 15 parts, calcium nitrate 8 parts, phosphoric acid
Diammonium 120 parts, 15 parts of calcium magnesium phosphate, potassium sulfate 120 parts, zinc ammonium phosphate 8 parts, potassium silicate 8 parts, Borax 8 parts, manganese sulfate 8 parts, molybdenum
Acid 8 parts of sodium, ethylenediaminetetraacetic acid ferrum 8 parts.
The type slow-release fertilizer of topdressing includes chitosan and the type Chemical Mixed Fertilizer that topdresses equally, and the two mass ratio is 1:10, described in topdress type
Chemical Mixed Fertilizer is by chitosan coated.Composition and the parts by weight of the described type Chemical Mixed Fertilizer that topdresses are: 100 parts of carbamide, potassium dihydrogen phosphate 70
Part, calcium superphosphate 15 parts.
The preparation method of described Semen arachidis hypogaeae Special slow release fertilizer is:
(1) Chemical Mixed Fertilizer mixing: by Chemical Mixed Fertilizer by 100 weight portion base manure Chemical Mixed Fertilizers or topdress Chemical Mixed Fertilizer and 5 weight portion complexations
Agent mix homogeneously, obtains the mixture of Chemical Mixed Fertilizer and chelating agent, is placed in rotating disk by the mixture of described Chemical Mixed Fertilizer Yu chelating agent.
Described chelating agent is the pale brown acid of tartaric acid.
(2) chitosan melts: chitosan is heated to 230 DEG C, and chitosan is completely melt, but not up to degradation condition.Institute
The molecular weight stating chitosan is 5.6 × 104。
(3) chitosan coated Chemical Mixed Fertilizer: after chitosan is completely melt, unlocking turntable, chitosan is sprayed in rotating disk
Chemical Mixed Fertilizer, with the mixture of chelating agent, is simultaneously introduced 1 parts by weight binder and 1 weight portion sealer, is rotated further rotating disk extremely
Urea coated complete, i.e. obtain chitosan coated Chemical Mixed Fertilizer；The slewing rate of described rotating disk is 8000rpm.Described binding agent is
Carboxyl methyl cellulose, described sealer is paraffin.
(4) post processing: chitosan coated Chemical Mixed Fertilizer is dried, cools down, sieves and obtain Semen arachidis hypogaeae Special slow release fertilizer.
Embodiment 3
One cultivates peanut Special slow release fertilizer, including base manure type slow-release fertilizer and the type slow-release fertilizer that topdresses.Described base manure type slow-release fertilizer bag
Including chitosan and base manure type Chemical Mixed Fertilizer, the two mass ratio is 1:3, and described base manure type Chemical Mixed Fertilizer is by chitosan coated.Described base manure
The composition of type Chemical Mixed Fertilizer and parts by weight are: 100 parts of carbamide, ammonium hydrogen carbonate 10 parts, ammonium hydrogen carbonate 5 parts, calcium nitrate 2 parts, phosphoric acid
Diammonium 80 parts, 5 parts of calcium magnesium phosphate, potassium sulfate 80 parts, zinc ammonium phosphate 2 parts, potassium silicate 2 parts, Borax 2 parts, manganese sulfate 2 parts, molybdic acid
2 parts of sodium, ethylenediaminetetraacetic acid ferrum 2 parts.
The type slow-release fertilizer of topdressing includes chitosan and the type Chemical Mixed Fertilizer that topdresses equally, and the two mass ratio is 1:8, described in the type that topdresses multiple
Complex fertilizer is by chitosan coated.Composition and the parts by weight of the described type Chemical Mixed Fertilizer that topdresses are: 100 parts of carbamide, potassium dihydrogen phosphate 30 parts,
Calcium superphosphate 5 parts.
The preparation method of described Semen arachidis hypogaeae Special slow release fertilizer is:
(1) Chemical Mixed Fertilizer mixing: by Chemical Mixed Fertilizer by 100 weight portion base manure Chemical Mixed Fertilizers or topdress Chemical Mixed Fertilizer and 5 weight portion complexations
Agent mix homogeneously, obtains the mixture of Chemical Mixed Fertilizer and chelating agent, is placed in rotating disk by the mixture of described Chemical Mixed Fertilizer Yu chelating agent.
Described chelating agent is that lignin, citric acid, the ratio of tartaric acid pale brown acid 1:1:3 in mass ratio mix.
(2) chitosan melts: chitosan is heated to 200 DEG C, and chitosan is completely melt, but not up to degradation condition；Institute
The molecular weight stating chitosan is 3.7 × 104。
(3) chitosan coated Chemical Mixed Fertilizer: after chitosan is completely melt, unlocking turntable, chitosan is sprayed in rotating disk
Chemical Mixed Fertilizer, with the mixture of chelating agent, is simultaneously introduced 1 parts by weight binder and 1 weight portion sealer, is rotated further rotating disk extremely
Urea coated complete, i.e. obtain chitosan coated Chemical Mixed Fertilizer；The slewing rate of described rotating disk is 5000rpm.Described binding agent is
Zeolite, carboxyl methyl cellulose, polyvinyl alcohol are mixed by the mass ratio of 2:1:1, and described sealer is Colophonium.
(4) post processing: chitosan coated Chemical Mixed Fertilizer is dried, cools down, sieves and obtain Semen arachidis hypogaeae Special slow release fertilizer.
Embodiment 4
One cultivates peanut Special slow release fertilizer, including base manure type slow-release fertilizer and the type slow-release fertilizer that topdresses.Described base manure type slow-release fertilizer bag
Including chitosan and base manure type Chemical Mixed Fertilizer, the two mass ratio is 1:4.5, and described base manure type Chemical Mixed Fertilizer is by chitosan coated.Described base
Composition and the parts by weight of fertile type Chemical Mixed Fertilizer are: 100 parts of carbamide, ammonium hydrogen carbonate 25 parts, ammonium hydrogen carbonate 12 parts, calcium nitrate 6 parts, phosphorus
Acid diammonium 110 parts, 12 parts of calcium magnesium phosphate, potassium sulfate 110 parts, zinc ammonium phosphate 6 parts, potassium silicate 6 parts, Borax 6 parts, manganese sulfate 6 parts,
Sodium molybdate 6 parts, ethylenediaminetetraacetic acid ferrum 6 parts.
The type slow-release fertilizer of topdressing includes chitosan and the type Chemical Mixed Fertilizer that topdresses equally, and the two mass ratio is 1:9.5, described in topdress type
Chemical Mixed Fertilizer is by chitosan coated.Composition and the parts by weight of the described type Chemical Mixed Fertilizer that topdresses are: 100 parts of carbamide, potassium dihydrogen phosphate 60
Part, calcium superphosphate 12 parts.
The preparation method of described Semen arachidis hypogaeae Special slow release fertilizer is:
(1) Chemical Mixed Fertilizer mixing: by Chemical Mixed Fertilizer by 100 weight portion base manure Chemical Mixed Fertilizers or topdress Chemical Mixed Fertilizer and 5 weight portion complexations
Agent mix homogeneously, obtains the mixture of Chemical Mixed Fertilizer and chelating agent, is placed in rotating disk by the mixture of described Chemical Mixed Fertilizer Yu chelating agent.
Described chelating agent is citric acid.
(2) chitosan melts: chitosan is heated to 220 DEG C, and chitosan is completely melt, but not up to degradation condition；Institute
The molecular weight stating chitosan is 4.9 × 104。
(3) chitosan coated Chemical Mixed Fertilizer: after chitosan is completely melt, unlocking turntable, chitosan is sprayed in rotating disk
Chemical Mixed Fertilizer, with the mixture of chelating agent, is simultaneously introduced binding agent and sealer, is rotated further rotating disk to urea coated complete, i.e.
Obtain chitosan coated Chemical Mixed Fertilizer；The slewing rate of described rotating disk is 7000rpm.Described binding agent is polyvinyl alcohol, described envelope
Close agent and be paraffin and Colophonium is mixed by the mass ratio of 1:1.
(4) post processing: chitosan coated Chemical Mixed Fertilizer is dried, cools down, sieves and obtain Semen arachidis hypogaeae Special slow release fertilizer.
Embodiment 5
One cultivates peanut Special slow release fertilizer, including base manure type slow-release fertilizer and the type slow-release fertilizer that topdresses.Described base manure type slow-release fertilizer bag
Including chitosan and base manure type Chemical Mixed Fertilizer, the two mass ratio is 1:3.5, and described base manure type Chemical Mixed Fertilizer is by chitosan coated.Described base
Composition and the parts by weight of fertile type Chemical Mixed Fertilizer are: 100 parts of carbamide, ammonium hydrogen carbonate 15 parts, ammonium hydrogen carbonate 8 parts, calcium nitrate 3 parts, phosphorus
Acid diammonium 90 parts, 8 parts of calcium magnesium phosphate, potassium sulfate 90 parts, zinc ammonium phosphate 3 parts, potassium silicate 3 parts, Borax 3 parts, manganese sulfate 3 parts, molybdenum
Acid 3 parts of sodium, ethylenediaminetetraacetic acid ferrum 3 parts.
The type slow-release fertilizer of topdressing includes chitosan and the type Chemical Mixed Fertilizer that topdresses equally, and the two mass ratio is 1:8.5, described in topdress type
Chemical Mixed Fertilizer is by chitosan coated.Composition and the parts by weight of the described type Chemical Mixed Fertilizer that topdresses are: 100 parts of carbamide, potassium dihydrogen phosphate 40
Part, calcium superphosphate 7 parts.
The preparation method of described Semen arachidis hypogaeae Special slow release fertilizer is:
(1) Chemical Mixed Fertilizer mixing: by Chemical Mixed Fertilizer by 100 weight portion base manure Chemical Mixed Fertilizers or topdress Chemical Mixed Fertilizer and 5 weight portion complexations
Agent mix homogeneously, obtains the mixture of Chemical Mixed Fertilizer and chelating agent, is placed in rotating disk by the mixture of described Chemical Mixed Fertilizer Yu chelating agent.
Described chelating agent is that citric acid acid pale brown with tartaric acid 3:2 in mass ratio mixes.
(2) chitosan melts: chitosan is heated to 210 DEG C, and chitosan is completely melt, but not up to degradation condition；Institute
The molecular weight stating chitosan is 4.2 × 104。
(3) chitosan coated Chemical Mixed Fertilizer: after chitosan is completely melt, unlocking turntable, chitosan is sprayed in rotating disk
Chemical Mixed Fertilizer, with the mixture of chelating agent, is simultaneously introduced binding agent and sealer, is rotated further rotating disk to urea coated complete, i.e.
Obtain chitosan coated Chemical Mixed Fertilizer；The slewing rate of described rotating disk is 6000rpm.Described binding agent is zeolite, dextrin and poly-second
Enol 2:1:1 in mass ratio mixes, and described sealer is paraffin.
(4) post processing: chitosan coated Chemical Mixed Fertilizer is dried, cools down, sieves and obtain Semen arachidis hypogaeae Special slow release fertilizer.
Claims (7)
1. one cultivate peanut Special slow release fertilizer, it is characterised in that: described Semen arachidis hypogaeae Special slow release fertilizer includes base manure type slow-release fertilizer and topdresses
Type slow-release fertilizer；
Described base manure type slow-release fertilizer is that base fertilizer applies at peanut seeding previous crops, does not directly contact with peanut seed；Described topdress slow
Releasing fertilizer is disposably to apply in the Semen arachidis hypogaeae floricome phase；
Described base manure type slow-release fertilizer includes chitosan and base manure type Chemical Mixed Fertilizer, and the two mass ratio is 1:3～5, and described base manure type is multiple
Complex fertilizer is by chitosan coated；Composition and the parts by weight of described base manure type Chemical Mixed Fertilizer are: 100 parts of carbamide, ammonium hydrogen carbonate 10～30
Part, ammonium hydrogen carbonate 5～15 parts, calcium nitrate 2～8 parts, Diammonium phosphate (DAP) 80～120 parts, calcium magnesium phosphate 5～15 parts, potassium sulfate 80～
120 parts, zinc ammonium phosphate 2～8 parts, potassium silicate 2～8 parts, Borax 2～8 parts, manganese sulfate 2～8 parts, sodium molybdate 2～8 parts, ethylenediamine
Ferric acetate 2～8 parts；
The described type slow-release fertilizer that topdresses includes chitosan and the type Chemical Mixed Fertilizer that topdresses equally, and the two mass ratio is 1:8～10, described in topdress
Type Chemical Mixed Fertilizer is by chitosan coated；Composition and the parts by weight of the described type Chemical Mixed Fertilizer that topdresses are: 100 parts of carbamide, potassium dihydrogen phosphate
30～70 parts, calcium superphosphate 5～15 parts.
The most according to claim 1 one cultivates peanut Special slow release fertilizer, it is characterised in that: described chitosan and base manure type compound
Fertile mass ratio is 1:4；Composition and the parts by weight of described base manure type Chemical Mixed Fertilizer are: 100 parts of carbamide, ammonium hydrogen carbonate 15～25 parts,
Ammonium hydrogen carbonate 8～12 parts, calcium nitrate 3～6 parts, Diammonium phosphate (DAP) 90～110 parts, calcium magnesium phosphate 8～12 parts, potassium sulfate 90～110
Part, zinc ammonium phosphate 3～6 parts, potassium silicate 3～6 parts, Borax 3～6 parts, manganese sulfate 3～6 parts, sodium molybdate 3～6 parts, ethylenediamine second
Acid ferrum 3～6 parts；
Described chitosan is 1:9 with the type Chemical Mixed Fertilizer mass ratio that topdresses；Composition and the parts by weight of the described type Chemical Mixed Fertilizer that topdresses are: urine
Element 100 parts, potassium dihydrogen phosphate 40～60 parts, calcium superphosphate 7～12 parts.
The most according to claim 1 one cultivates peanut Special slow release fertilizer, it is characterised in that: the composition of described base manure type Chemical Mixed Fertilizer
And parts by weight are: 100 parts of carbamide, ammonium hydrogen carbonate 20 parts, ammonium hydrogen carbonate 10 parts, calcium nitrate 5 parts, Diammonium phosphate (DAP) 100 parts, calcium and magnesium
10 parts of phosphate fertilizer, potassium sulfate 100 parts, zinc ammonium phosphate 5 parts, potassium silicate 5 parts, Borax 5 parts, manganese sulfate 5 parts, sodium molybdate 5 parts, ethylenediamine
Ferric acetate 5 parts；
Composition and the parts by weight of the described type Chemical Mixed Fertilizer that topdresses are: 100 parts of carbamide, potassium dihydrogen phosphate 50 parts, calcium superphosphate 10 parts.
4. a preparation method cultivating peanut Special slow release fertilizer, it is characterised in that: the preparation method base of described Semen arachidis hypogaeae Special slow release fertilizer
Cultivate peanut Special slow release fertilizer in described in any one of claims 1 to 3；Specifically include following steps:
(1) Chemical Mixed Fertilizer mixing: Chemical Mixed Fertilizer is mixed homogeneously with chelating agent by the parts by weight of base manure Chemical Mixed Fertilizer or the Chemical Mixed Fertilizer that topdresses,
Obtain the mixture of Chemical Mixed Fertilizer and chelating agent, the mixture of described Chemical Mixed Fertilizer Yu chelating agent is placed in rotating disk；
Described chelating agent is: the combination of one or more in the pale brown acid of lignin, citric acid, tartaric acid；
(2) chitosan melts: chitosan is heated to 200～230 DEG C, and chitosan is completely melt, but not up to degradation condition；
(3) chitosan coated Chemical Mixed Fertilizer: after chitosan is completely melt, unlocking turntable, chitosan is sprayed to the compound in rotating disk
In the fertile mixture with chelating agent, it is simultaneously introduced binding agent and sealer, is rotated further rotating disk urea coated the most complete, i.e. obtains
Chitosan coated Chemical Mixed Fertilizer；The slewing rate of described rotating disk is 5000～8000rpm；
Described binding agent is: one or more in bentonite, zeolite, carboxyl methyl cellulose, dextrin, polyvinyl alcohol, starch
Combination；
Described sealer is: paraffin and/or Colophonium；
(4) post processing: chitosan coated Chemical Mixed Fertilizer is dried, cools down, sieves and obtain Semen arachidis hypogaeae Special slow release fertilizer；
Described Chemical Mixed Fertilizer, chelating agent, binding agent, the mass ratio of sealer be: 100:5:1:1；
The molecular weight of described chitosan is less than 1 × 105。
The most according to claim 4 one preparation method cultivating peanut Special slow release fertilizer, it is characterised in that: step (2) is described
Chitosan heating-up temperature is 206 DEG C.
The most according to claim 4 one preparation method cultivating peanut Special slow release fertilizer, it is characterised in that: described chitosan
Molecular weight is 5.6 × 104。
The most according to claim 4 one preparation method cultivating peanut Special slow release fertilizer, it is characterised in that: described chitosan
Molecular weight is 3.7 × 104。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610495880.3A CN106187412A (en) | 2016-06-29 | 2016-06-29 | One cultivates peanut Special slow release fertilizer and preparation method thereof |
Applications Claiming Priority (1)
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| CN201610495880.3A CN106187412A (en) | 2016-06-29 | 2016-06-29 | One cultivates peanut Special slow release fertilizer and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106818166A (en) * | 2017-01-19 | 2017-06-13 | 山东省农业科学院生物技术研究中心 | A kind of cultural method for improving Spring Peanut pod circularity |
| CN107382460A (en) * | 2017-07-21 | 2017-11-24 | 山东省农业科学院生物技术研究中心 | Special peanut film-coating controlled release calcareous fertilisers and preparation method thereof |
| CN110304959A (en) * | 2019-06-18 | 2019-10-08 | 福建奥利高塔复合肥有限公司 | A kind of preparation process of energy conservation and environmental protection high-tower granulation slow release long-acting compound fertilizer |
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| CN102432374A (en) * | 2011-09-02 | 2012-05-02 | 史丹利化肥股份有限公司 | Melt biomass composite potassium sulfate type slow-release fertilizer and preparation method thereof |
| CN103626598A (en) * | 2013-12-23 | 2014-03-12 | 史丹利化肥股份有限公司 | Functional chitosan biological slow-release fertilizer and preparation method thereof |
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| CN106818166A (en) * | 2017-01-19 | 2017-06-13 | 山东省农业科学院生物技术研究中心 | A kind of cultural method for improving Spring Peanut pod circularity |
| CN107382460A (en) * | 2017-07-21 | 2017-11-24 | 山东省农业科学院生物技术研究中心 | Special peanut film-coating controlled release calcareous fertilisers and preparation method thereof |
| CN110304959A (en) * | 2019-06-18 | 2019-10-08 | 福建奥利高塔复合肥有限公司 | A kind of preparation process of energy conservation and environmental protection high-tower granulation slow release long-acting compound fertilizer |
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