CN110204384A - A kind of coating biological organic fertilizer particle and preparation method thereof - Google Patents
A kind of coating biological organic fertilizer particle and preparation method thereof Download PDFInfo
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- CN110204384A CN110204384A CN201910441586.8A CN201910441586A CN110204384A CN 110204384 A CN110204384 A CN 110204384A CN 201910441586 A CN201910441586 A CN 201910441586A CN 110204384 A CN110204384 A CN 110204384A
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- organic fertilizer
- biological organic
- fertilizer particle
- coating
- bacteria cellulose
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D5/00—Fertilisers containing magnesium
-
- 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
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
Abstract
The invention belongs to technical field of biological organic fertilizer, disclose a kind of coating biological organic fertilizer particle and preparation method thereof, the coating biological organic fertilizer particle is made of the raw material of following weight parts: common organic fertilizer 80-100, carboxyl bacteria cellulose 10-15, chitosan solution 10-15, microbial germ powder 4-5, composite trace element solution 3-5.The present invention is by adding carboxylated bacteria cellulose, chitosan and composite trace element solution into biological organic fertilizer particle, it is acted synergistically by the compounding between each component, biological organic fertilizer particle fertilizer efficiency made from making is high, quality is stablized, and it is non-breakable in processing, transport, application, it is reproducible, long shelf-life has excellent comprehensive performance, can improve the yield and quality of crop well.
Description
Technical field
The present invention relates to technical field of biological organic fertilizer more particularly to a kind of coating biological organic fertilizer particle and its preparation sides
Method.
Background technique
Biological organic fertilizer is combined by microorganisms with specific functions and by harmless treatment, decomposed organic materials
One kind has both the fertilizer of microbial manure and organic fertilizer effect, and the key index of quality is living bacteria count.Currently, in the market
Biological organic fertilizer be broadly divided into powdery and graininess two types, powder product simple production process, lower production costs, but
There is easy agglomeration, poor fluidity, be difficult to realize mechanized application, when application easily formation dust the problems such as, and product is aqueous
Amount is higher, and the shelf-life is short, generally not popular with users, using by biggish limitation；The form and traditional fertilizer of granular product
Expect similar, facilitates mechanization to apply, and the shelf-life is longer, it is more popular with users.But existing granular pattern biological organic fertilizer
Have following defects that (1) granular pattern biological organic fertilizer needs to be easily destroyed fertilizer by high temperature drying process during the preparation process
The activity of middle functional microorganism, causes viable count to decline；(2) soil environment is complicated, limits the activity of functional microorganism；(3)
The intensity of fertiliser granulates is lower, and percentage of damage when processing, transport, applying is high.These factors lead to the fertilizer efficiency of granular pattern bio-fertilizer
It reduces, repeatability and stability are poor.Therefore, the comprehensive performance for how improving granular pattern biological organic fertilizer provides efficient, performance
Stable granular pattern biological organic fertilizer, becomes the focus studied at present.
Summary of the invention
The purpose of the present invention is making up the defect of prior art, a kind of coating biological organic fertilizer particle and its preparation side are provided
Method, biological organic fertilizer particle fertilizer efficiency obtained is high, quality is stablized, and non-breakable, the repeatability in processing, transport, application
Good, long shelf-life has excellent comprehensive performance, can improve the yield and quality of crop well.
In order to achieve the above objectives, the technical solution used in the present invention are as follows:
A kind of coating biological organic fertilizer particle, is made of the raw material of following weight parts:
Common organic fertilizer 80-90, binder 10-15, coating agent 8-10, microbial germ powder 4-5, composite trace element solution
5-10；
The binder is by carboxylated bacteria cellulose and kaolin by weight 1:(1-2) it mixes；
The coating agent is chitosan solution.
Preferably, the carboxylated bacteria cellulose the preparation method is as follows: first by bacteria cellulose addition be equivalent to institute
It states in 40-60 DEG C of hydrolysis 2-4h in the aqueous hydrochloric acid solution of the 0.5-1mol/L of 10-20 times of bacteria cellulose weight, then by pH tune
To 5-6, it is added and is equivalent to the TEMPO of the bacteria cellulose weight 3-5%, is equivalent to the bacteria cellulose weight 50-
100% NaClO2It is terminated with the NaClO for being equivalent to the bacteria cellulose weight 30-50% in 50-60 DEG C of reaction 1-2h
Be filtered, washed after reaction, dry to get.
Preferably, the bacteria cellulose the preparation method is as follows: acetobacter xylinum is inoculated into acetobacter xylinum liquid fermentation
In culture medium, bacteria cellulose suspension is obtained within fermented and cultured 5-8 days in 100-200r/min, 20-30 DEG C, is sterilized by 121 DEG C
Handle filtering after 10-15min, cleaning, it is dry to get.
Preferably, the inoculum concentration of the acetobacter xylinum is 5-10%.
Preferably, the acetobacter xylinum liquid fermentation medium includes the raw material of following weight parts: glucose 4-8, sucrose
1-3, corn pulp 1.5-3.5, ammonium sulfate 0.2-0.4, potassium dihydrogen phosphate 0.1-0.3, magnesium sulfate 0.02-0.04, calcium lactate 0.01-
0.03, pH 6-6.5.
Preferably, the chitosan solution the preparation method is as follows: by molecular weight be 50000-200000 chitosan it is molten
Xie Yu be equivalent to 20-30 times of chitosan weight mass fraction be 2-4% acetum in get.
Preferably, the composite trace element solution includes following components: boric acid 0.05-0.1g/L, zinc sulfate 0.03-
0.05g/L, magnesium sulfate 0.01-0.02g/L, manganese sulfate 0.01-0.015g/L.
Preferably, the microbial germ powder is bacillus subtilis powder.
Preferably, the living bacteria count of the bacillus subtilis powder is hundred million/gram of 100-200.
A kind of preparation method of coating biological organic fertilizer particle, comprising the following steps:
(1) composite trace element solution is equably sprayed in a binder, it is cooling in 50-60 DEG C of drying process 2-4h
Elder generation and microbial germ powder are stirred 10-15min in blender afterwards, and common organic fertilizer is then added and is uniformly mixed, makes
Grain, obtains biological organic fertilizer particle；
(2) coating agent is uniformly sprayed to the biological organic fertilizer particle surface, in 40-50 DEG C of heat preservation 0.5-1h, then
In 100-120 DEG C of drying to get coating biological organic fertilizer particle.
The invention has the advantages that
The present invention is first with TEMPO/NaClO/NaClO2System carries out partial oxidation to bacteria cellulose and obtains carboxylated
Bacteria cellulose compounds to form organic fertilizer granule agglomerant with kaolin, then the composite trace element containing B, Zn, Mg, Mn is molten
Liquid is sprayed in the binder, is supported on microelement equably on the binder by the chelation with carboxyl, and micro-
Biological bacteria powder, common organic fertilizer are uniformly mixed, and biological organic fertilizer particle are obtained after granulation, finally using chitosan solution as coating
Agent is sprayed at biological organic fertilizer particle surface, utilizes carboxylated bacteria cellulose in amino in chitosan molecule and binder
Carboxyl crosslinks reaction, and chitosan is made more firmly to be incorporated in organic fertilizer particles surface, forms packet high-intensitive, that performance is stable
Film finally obtains coating biological organic fertilizer particle.The binder that the present invention uses carboxylated bacteria cellulose to compound with kaolin
Organic fertilizer particles are prepared, strong bonding effect is played, improve balling ratio, compression strength and the guarantor of biological organic fertilizer particle
It is aqueous, synergy is generated with coating agent chitosan and with the composite trace element for improving microbial activity function, to life
Microorganism in organic fertilizer particle plays excellent protective effect, increases substantially microorganism in process and stores up
It deposits, the living bacteria count in application and microbial activity, can preferably play production-increasing function, improve the yield of crop
And quality, and improve the utilization rate and storage stability of fertilizer, obtained granulated fertilizer is non-breakable, it is reproducible, protect
The matter phase is long, is conducive to save the cost, reduces the wasting of resources.
Specific embodiment
Further description of the technical solution of the present invention combined with specific embodiments below.
Embodiment 1
A kind of coating biological organic fertilizer particle, is made of the raw material of following weight parts:
Common organic fertilizer 80, kaolin 5, carboxylated bacteria cellulose 5, chitosan solution 8, living bacteria count are 10,000,000,000
It is a/gram bacillus subtilis powder 4, composite trace element solution 5.
Wherein, carboxylated bacteria cellulose the preparation method is as follows: first by bacteria cellulose addition be equivalent to bacterial fibers
In 40 DEG C of hydrolysis 2h in the aqueous hydrochloric acid solution of the 0.5mol/L of 10 times of plain weight, pH is then adjusted to 5, addition is equivalent to bacterium fibre
It ties up the TEMPO of plain weight 3%, be equivalent to the NaClO of bacteria cellulose weight 50%2Be equivalent to bacteria cellulose weight 30%
NaClO, in 50 DEG C of reaction 1h, terminate be filtered, washed after reaction, dry to get.
Wherein, bacteria cellulose the preparation method is as follows: by inoculum concentration being 5% to be inoculated into acetobacter xylinum liquid by acetobacter xylinum
In body fermentation medium, bacteria cellulose suspension is obtained within fermented and cultured 5 days in 100r/min, 20 DEG C, by 121 DEG C of sterilization treatments
Filter, clean after 10min, it is dry to get.
Wherein, acetobacter xylinum liquid fermentation medium includes the raw material of following weight parts: glucose 4, sucrose 1, corn pulp
1.5, ammonium sulfate 0.2, potassium dihydrogen phosphate 0.1, magnesium sulfate 0.02, calcium lactate 0.01, pH 6.
Wherein, chitosan solution the preparation method is as follows: the chitosan that molecular weight is 50000 is dissolved in is equivalent to shell and gathers
The mass fraction that 20 times of sugar weight be 2% acetum in get.
Wherein, composite trace element solution includes following components: boric acid 0.05g/L, zinc sulfate 0.03g/L, magnesium sulfate
0.01g/L, manganese sulfate 0.01g/L.
Preparation method includes the following steps:
(1) composite trace element solution is equably sprayed in the mixture of kaolin and carboxylated bacteria cellulose,
Elder generation and microbial germ powder are stirred 10min in blender after 50 DEG C of drying process 2h, cooling, are then added common organic
Fertilizer, kaolin are uniformly mixed, and are granulated, are obtained biological organic fertilizer particle；
(2) chitosan solution is uniformly sprayed to biological organic fertilizer particle surface, in 40 DEG C of heat preservation 0.5h, then in 100
DEG C drying to get coating biological organic fertilizer particle.
Embodiment 2
A kind of coating biological organic fertilizer particle, is made of the raw material of following weight parts:
Common organic fertilizer 90, kaolin 10, carboxylated bacteria cellulose 5, chitosan solution 10, living bacteria count 100
The bacillus subtilis powder 4 of hundred million/gram, composite trace element solution 10.
Wherein, carboxylated bacteria cellulose the preparation method is as follows: first by bacteria cellulose addition be equivalent to bacterial fibers
In 60 DEG C of hydrolysis 4h in the aqueous hydrochloric acid solution of the 1mol/L of 20 times of plain weight, pH is then adjusted to 6, addition is equivalent to bacterial fibers
The TEMPO of plain weight 5%, the NaClO for being equivalent to bacteria cellulose weight 100%2Be equivalent to bacteria cellulose weight 50%
NaClO, in 60 DEG C of reaction 2h, terminate be filtered, washed after reaction, dry to get.
Wherein, bacteria cellulose the preparation method is as follows: by inoculum concentration being 10% to be inoculated into acetobacter xylinum by acetobacter xylinum
In liquid fermentation medium, bacteria cellulose suspension is obtained within fermented and cultured 8 days in 200r/min, 30 DEG C, at 121 DEG C of sterilizings
Manage filtering after 15min, cleaning, it is dry to get.
Wherein, acetobacter xylinum liquid fermentation medium includes the raw material of following weight parts: glucose 8, sucrose 3, corn pulp
3.5, ammonium sulfate 0.4, potassium dihydrogen phosphate 0.3, magnesium sulfate 0.04, calcium lactate 0.03, pH 6.5.
Wherein, chitosan solution the preparation method is as follows: the chitosan that molecular weight is 200000 to be dissolved in and is equivalent to shell
The mass fraction that 30 times of glycan weight be 4% acetum in get.
Wherein, composite trace element solution includes following components: boric acid 0.1g/L, zinc sulfate 0.05g/L, magnesium sulfate
0.02g/L, manganese sulfate 0.015g/L.
Preparation method includes the following steps:
(1) composite trace element solution is equably sprayed in the mixture of kaolin and carboxylated bacteria cellulose,
Elder generation and microbial germ powder are stirred 15min in blender after 60 DEG C of drying process 4h, cooling, are then added common organic
Fertilizer is uniformly mixed, and is granulated, is obtained biological organic fertilizer particle；
(2) chitosan solution is uniformly sprayed to biological organic fertilizer particle surface, in 50 DEG C of heat preservation 1h, then in 120 DEG C
Drying is to get coating biological organic fertilizer particle.
Comparative example 1
A kind of coating biological organic fertilizer particle, is made of the raw material of following weight parts:
Common organic fertilizer 80, kaolin 10, chitosan solution 8, living bacteria count are the bacillus subtilis of 10,000,000,000/gram
Bacterium bacterium powder 4, composite trace element solution 5.
Wherein, chitosan solution the preparation method is as follows: the chitosan that molecular weight is 50000 is dissolved in is equivalent to shell and gathers
The mass fraction that 20 times of sugar weight be 2% acetum in get.
Wherein, composite trace element solution includes following components: boric acid 0.05g/L, zinc sulfate 0.03g/L, magnesium sulfate
0.01g/L, manganese sulfate 0.01g/L.
Preparation method includes the following steps:
(1) composite trace element solution is equably sprayed in kaolin, in 50 DEG C of drying process 2h, it is cooling after first with
Microbial germ powder is stirred 10min in blender, and common organic fertilizer is then added and is uniformly mixed, and is granulated, is given birth to
Organic fertilizer particle；
(2) chitosan solution is uniformly sprayed to biological organic fertilizer particle surface, in 40 DEG C of heat preservation 0.5h, then in 100
DEG C drying to get coating biological organic fertilizer particle.
Comparative example 2
A kind of coating biological organic fertilizer particle, is made of the raw material of following weight parts:
Common organic fertilizer 80, kaolin 5, carboxylated bacteria cellulose 5, chitosan solution 8, living bacteria count are 10,000,000,000
It is a/gram bacillus subtilis powder 4.
Wherein, carboxylated bacteria cellulose the preparation method is as follows: first by bacteria cellulose addition be equivalent to bacterial fibers
In 40 DEG C of hydrolysis 2h in the aqueous hydrochloric acid solution of the 0.5mol/L of 10 times of plain weight, pH is then adjusted to 5, addition is equivalent to bacterium fibre
It ties up the TEMPO of plain weight 3%, be equivalent to the NaClO of bacteria cellulose weight 50%2Be equivalent to bacteria cellulose weight 30%
NaClO, in 50 DEG C of reaction 1h, terminate be filtered, washed after reaction, dry to get.
Wherein, bacteria cellulose the preparation method is as follows: by inoculum concentration being 5% to be inoculated into acetobacter xylinum liquid by acetobacter xylinum
In body fermentation medium, bacteria cellulose suspension is obtained within fermented and cultured 5 days in 100r/min, 20 DEG C, by 121 DEG C of sterilization treatments
Filter, clean after 10min, it is dry to get.
Wherein, acetobacter xylinum liquid fermentation medium includes the raw material of following weight parts: glucose 4, sucrose 1, corn pulp
1.5, ammonium sulfate 0.2, potassium dihydrogen phosphate 0.1, magnesium sulfate 0.02, calcium lactate 0.01, pH 6.
Wherein, chitosan solution the preparation method is as follows: the chitosan that molecular weight is 50000 is dissolved in is equivalent to shell and gathers
The mass fraction that 20 times of sugar weight be 2% acetum in get.
Preparation method includes the following steps:
(1) mixture and microbial germ powder of kaolin and carboxylated bacteria cellulose are stirred in blender
Then 10min is added common organic fertilizer and is uniformly mixed, be granulated, obtain biological organic fertilizer particle；
(2) chitosan solution is uniformly sprayed to biological organic fertilizer particle surface, in 40 DEG C of heat preservation 0.5h, then in 100
DEG C drying to get coating biological organic fertilizer particle.
Comparative example 3
A kind of coating biological organic fertilizer particle, is made of the raw material of following weight parts:
Common organic fertilizer 80, kaolin 10, chitosan solution 8, living bacteria count are the bacillus subtilis of 10,000,000,000/gram
Bacterium bacterium powder 4.
Wherein, chitosan solution the preparation method is as follows: the chitosan that molecular weight is 50000 is dissolved in is equivalent to shell and gathers
The mass fraction that 20 times of sugar weight be 2% acetum in get.
Preparation method includes the following steps:
(1) kaolin and microbial germ powder will be stirred in blender 10min, common organic fertilizer is then added and stirs
Mix it is uniformly mixed, be granulated, obtain biological organic fertilizer particle；
(2) chitosan solution is uniformly sprayed to biological organic fertilizer particle surface, in 40 DEG C of heat preservation 0.5h, then in 100
DEG C drying to get coating biological organic fertilizer particle.
(1) organic fertilizer particles basic performance tests
Basic performance tests are carried out to coating biological organic fertilizer particle made from embodiment 1-2 and comparative example 1-3 respectively,
Including living bacteria count survival rate, living bacteria count survival rate and compression strength after storage 6 months after drying.Wherein, effectively living
Bacterium number uses plate dilution assay method, and compression strength is measured using KQ-3 type detector for strength of particles.Experimental result such as 1 institute of table
Show:
(2) manure trial
1. testing basic condition
1.1 test site
Test site is located at and county's vegetable process Demonstration Garden.
1.2 for trying soil
It is the yellowish-white native field of planform image matching development for examination field soil, the soil texture is medium loam.Soil sample analysis project is such as
Shown in table 2:
Table 2 analyzes result for examination field soil sample
1.3 for studying object
Pakchoi, kind are that short-foot is yellow.
2. experimental design
Test sets 5 processing altogether, is respectively: 1., in pakchoi processing sows compound fertilizer 20kg/ mus of Qian Jishi 45%+reality
Apply 85kg/ mus of coating biological organic fertilizer particle made from example 1；2., in pakchoi processing sows 45% compound fertilizer 20kg/ of Qian Jishi
85kg/ mus of coating biological organic fertilizer particle made from mu+embodiment 2；3., in pakchoi processing sows 45% compound fertilizer of Qian Jishi
85kg/ mus of coating biological organic fertilizer particle made from 20kg/ mus+comparative example 1；4., base applies 45% before pakchoi is sowed for processing
85kg/ mus of coating biological organic fertilizer particle made from compound fertilizer 20kg/ mus+comparative example 2；5., in pakchoi processing sows preceding base
Apply 85kg/ mus of coating biological organic fertilizer particle made from 45% compound fertilizer 20kg/ mus+comparative example 3.
3. test method
It sows on August 1st, 2017, August transplant planting on the 18th, production is surveyed in harvesting on October 29.Different disposal removes institute's basal dressing
Different outer, the management measures such as other weedings, deinsectization, watering are completely the same.The quality of analysis pakchoi before harvesting, attributional analysis
Index is soluble sugar and protein content, and the measurement of soluble sugar uses phynol method, and the measurement of protein is fixed using kelvin
Nitrogen method, each processing are repeated 3 times.The per mu yield of pakchoi is counted after harvesting.
4. result and analysis
The results are shown in Table 3 for the yield and quality analysis of each processing pakchoi:
3 different disposal yield of pakchoi of table and attributional analysis result
| Processing is 1. | Processing is 2. | Processing is 3. | Processing is 4. | Processing is 5. | |
| Per mu yield (kg) | 4526 | 4508 | 3983 | 4117 | 3904 |
| Soluble sugar content (%) | 2.89 | 2.91 | 2.56 | 2.49 | 2.44 |
| Protein content (%) | 1.89 | 1.84 | 1.67 | 1.73 | 1.62 |
Claims (10)
1. a kind of coating biological organic fertilizer particle, which is characterized in that be made of the raw material of following weight parts:
Common organic fertilizer 80-90, binder 10-15, coating agent 8-10, microbial germ powder 4-5, composite trace element solution 5-
10；
The binder is by carboxylated bacteria cellulose and kaolin by weight 1:(1-2) it mixes；
The coating agent is chitosan solution.
2. a kind of coating biological organic fertilizer particle according to claim 1, which is characterized in that the carboxylated bacterial fibers
Element is equivalent to 10-20 times of bacteria cellulose weight of the 0.5-1mol/ the preparation method is as follows: first bacteria cellulose is added
In 40-60 DEG C of hydrolysis 2-4h in the aqueous hydrochloric acid solution of L, pH is then adjusted to 5-6, addition is equivalent to the bacteria cellulose weight
The TEMPO of 3-5%, the NaClO for being equivalent to the bacteria cellulose weight 50-100%2Be equivalent to the bacteria cellulose weight
The NaClO for measuring 30-50%, in 50-60 DEG C of reaction 1-2h, terminate be filtered, washed after reacting, dry to get.
3. a kind of coating biological organic fertilizer particle according to claim 2, which is characterized in that the system of the bacteria cellulose
Preparation Method is as follows: acetobacter xylinum being inoculated into acetobacter xylinum liquid fermentation medium, is sent out in 100-200r/min, 20-30 DEG C
Ferment culture obtains bacteria cellulose suspension for 5-8 days, filter, clean after 121 DEG C of sterilization treatment 10-15min, it is dry to get.
4. a kind of coating biological organic fertilizer particle according to claim 3, which is characterized in that the inoculation of the acetobacter xylinum
Amount is 5-10%.
5. a kind of coating biological organic fertilizer particle according to claim 3, which is characterized in that the acetobacter xylinum liquid hair
Ferment culture medium includes the raw material of following weight parts: glucose 4-8, sucrose 1-3, corn pulp 1.5-3.5, ammonium sulfate 0.2-0.4, phosphorus
Acid dihydride potassium 0.1-0.3, magnesium sulfate 0.02-0.04, calcium lactate 0.01-0.03, pH 6-6.5.
6. a kind of coating biological organic fertilizer particle according to claim 1, which is characterized in that the system of the chitosan solution
Preparation Method is as follows: the chitosan that molecular weight is 50000-200000 is dissolved in the quality for being equivalent to 20-30 times of chitosan weight
Score be 2-4% acetum in get.
7. a kind of coating biological organic fertilizer particle according to claim 1, which is characterized in that the composite trace element is molten
Liquid includes following components: boric acid 0.05-0.1g/L, zinc sulfate 0.03-0.05g/L, magnesium sulfate 0.01-0.02g/L, manganese sulfate
0.01-0.015g/L。
8. a kind of coating biological organic fertilizer particle according to claim 1, which is characterized in that the microbial germ powder is withered
Careless bacillus bacterium powder.
9. a kind of coating biological organic fertilizer particle according to claim 8, which is characterized in that the bacillus subtilis bacterium
The living bacteria count of powder is hundred million/gram of 100-200.
10. a kind of preparation method of coating biological organic fertilizer particle described in -9 according to claim 1, which is characterized in that including
Following steps:
(1) composite trace element solution is equably sprayed in a binder, it is first after cooling in 50-60 DEG C of drying process 2-4h
It is stirred 10-15min in blender with microbial germ powder, common organic fertilizer is then added, is uniformly mixed, is granulated,
Obtain biological organic fertilizer particle；
(2) coating agent is uniformly sprayed to the biological organic fertilizer particle surface, in 40-50 DEG C of heat preservation 0.5-1h, then in
100-120 DEG C of drying is to get coating biological organic fertilizer particle.
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| CN112811955A (en) * | 2021-01-18 | 2021-05-18 | 解会敏 | Microbial agent with envelope and preparation method thereof |
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