CN108863629A - A kind of preparation method of wheat bio-bacterial manure capsule and pill - Google Patents
A kind of preparation method of wheat bio-bacterial manure capsule and pill Download PDFInfo
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- CN108863629A CN108863629A CN201811169774.1A CN201811169774A CN108863629A CN 108863629 A CN108863629 A CN 108863629A CN 201811169774 A CN201811169774 A CN 201811169774A CN 108863629 A CN108863629 A CN 108863629A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—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 present invention relates to a kind of bio-bacterial manure field more particularly to a kind of preparation methods of wheat bio-bacterial manure capsule and pill, including following preparation step：1）By granulation of fertilizer, it is prepared into fertilizer core；2）Fertilizer core is coated using starch/polyethylene alcohol Modified Membrane；3）Agar is soluble in water, calcium alginate is added, then sterilizes, streptomycete bacterium solution and fertilizer core is added, obtains mixed liquor, and be added dropwise in oil, forms microballoon；4）Under stirring, sodium polyphosphate and microballoon are added in chitosan acetic acid solution；5）Microballoon is taken out, is cleaned using Tween-80 aqueous cleaning, then with deionized water, is added in calcium chloride water, stirring takes out drying, obtains bio-bacterial manure capsule and pill.The present invention has interior outer double-layer structure, and outer layer releases streptomycete bacterial manure, and internal layer fertilizer core discharges chemical fertilizer, and the material used is biodegradable material, will not be remained in soil, environmentally protective.
Description
Technical field
The present invention relates to a kind of bio-bacterial manure field more particularly to a kind of preparation methods of wheat bio-bacterial manure capsule and pill.
Background technique
In order to realize that the high yield and stable yields of agricultural product, agricultural production process are often largely applied chemical fertilizer, caused
Ecological environment is on the rise.For the sustainable development of agricultural, modern agriculture has become to green agriculture, the transformation of ecological agriculture direction
For certainty, microbial bacterial agent also protrudes increasingly in effect wherein.In recent years, it is anti-to be widely used in biology for microbial bacterial agent
In controlling, has the relevant report of multiple-microorganism microbial inoculum so far, for example, yellow ocher drappus microbial inoculum can be to the strain of wheat seedling
Height, fresh weight, plant dry weight have significant facilitation, but due to microbial bacterial agent to outside environmental elements (humidity, temperature and
Illumination etc.) it is more sensitive, the stability for being easy to cause microbial inoculum to store is poor, therefore during actual production microbial bacterial agent,
The stability of microbial inoculum can be improved by adding some auxiliary agents, extend the pot-life of microbial inoculum.Microcapsules technology is a kind of with solidifying
Glue material makes solid or liquid cladding form the technology of fine particle, and obtained fine particle size is in micron or millimeter model
It encloses, when the advantage of microcapsules technology is to form microcapsules, the capsule heart is wrapped by and is isolated with external environment, its property can have no
It is retained with influencing, and under proper condition, the capsule heart can be released again when wall material is destroyed.Since microcapsules have
Substance exempt from it is affected by environment, it is easy to carry and transport and degradable the advantages that, will so that microcapsules technology has obtained broad development
Microcapsule embedded technology is applied in the preparation technique of VA Mycorrhizal Fungi that the preservation and application that make VA Mycorrhizal Fungi is more convenient.It is raw in agricultural
During production, bio-bacterial manure and chemical fertilizer are unable to satisfy the needs of crop different stages of growth due to single-dose application, often need
It repeatedly to apply fertilizer, the utilization rate of fertilizer of chemical fertilizer is low, can also generate pollution to environment.And in the prior art, for inciting somebody to action
Bio-bacterial manure and chemical fertilizer embed simultaneously and the active means that are independent of each other between each other are relatively fewer, therefore, develops one
The carrier that kind applies fertilizers scientifically increases utilization rate of fertilizer, reduces the usage amount and fertilizer application frequency of fertilizer, saves labour, reduction pair
Environmental pollution improves the important trend that quality of agricultural product is Fertilizer development.
Patent Office of the People's Republic of China discloses a kind of complex micro organism fungicide on March 7th, 2018 and produces compound organic and inorganic fertilizer
The patent of invention of process, Authorization Notice No. CN108503403A, a kind of complex micro organism fungicide system of the disclosure of the invention
The process of compound organic and inorganic fertilizer is taken, the raw material composition that the complex micro organism fungicide produces compound organic and inorganic fertilizer includes
Organic matter material, inanimate matter raw material, microorganism live bacteria, the organic matter material are set as vinasse waste material, the inanimate matter raw material
Including monoammonium phosphate, potassium sulfate and bentonite, the microorganism live bacteria is set as nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria, the invention
Only bacterial manure and chemical fertilizer are simply mixed, microbial-bacterial fertilizer and chemical fertilizer are not isolated, and microbial bacteria during storage
Fertilizer also will receive the extraneous reduction influenced so as to cause fertility.
Summary of the invention
To be not easy to maintain in fertilizer in solution in the prior art agricultural production process, bio-bacterial manure and chemical fertilizer are not easy altogether
With saving, transport is inconvenient, and Fertilizer application amount is higher, and fertilizer application frequency is more, and fertilizer and manpower and material resources waste serious problem, and can not
Meet wheat the problem of different growing stage needs different fertilizer, providing a kind of internal layer is controlled release degradable resin cladding
Fertilizer, outer layer are the streptomycete bacterial manure capsule and pill of microcapsule coated.
To achieve the above object, the present invention uses following technical scheme：
A kind of preparation method of wheat bio-bacterial manure capsule and pill, which is characterized in that including following preparation step：
(1) by fertilizer drying, milling is then granulated, is prepared into fertilizer core；
(2) fertilizer core is coated using starch/polyethylene alcohol Modified Membrane；
(3) streptomycete bacterial strain is put into stationary culture in culture medium, obtains streptomycete bacterium solution；
(4) agar is soluble in water, under stirring, calcium alginate is added, then sterilizes, and above-mentioned streptomycete bacterium solution is added
With fertilizer core, mixed liquor is obtained；
(5) above-mentioned mixed liquor is added dropwise in oil, forms microballoon；
(6) it dissolves the chitosan in acetic acid aqueous solution, under stirring, sodium polyphosphate and microballoon is added to chitosan
In acetic acid solution；
(7) microballoon is taken out, is cleaned using Tween-80 aqueous cleaning, then with deionized water；
(8) microballoon after cleaning is added in calcium chloride water, stirs 1-24h, taken out drying, obtain bio-bacterial manure capsule and pill.
Bio-bacterial manure capsule and pill of the invention is divided into internal layer and outer bilayer structure, and outer layer is that chitosan and calcium alginate coat
Capsule, internal layer is fertilizer core, when inventor is when carrying out innovation and creation, it is found that exposed fertilizer core can reduce the chain in bacterium solution
The survival rate of mould reduces effective bacterium number amount in chitosan and polyphosphoric acids natrium capsule, and therefore, inventor uses
Biodegradable starch/polyethylene alcohol Modified Membrane cladding places into after embedding to fertilizer core and carries out subsequent step in bacterium solution
Suddenly, the fertilizer in internal layer fertilizer core and streptomycete are completely isolated at this time, make its respective activity that is independent of each other, and biodegradable
Starch/polyethylene alcohol Modified Membrane also function to the effect of fertilizer control release.When bio-bacterial manure capsule and pill of the invention is made applied to wheat
When object produces, wheat needs different fertilizer in germination and two stages of growth, and wheat first needs streptomycete bacterium in germination
Fertilizer, the capsule material of outer layer chitosan and calcium alginate starts biodegrade at this time, releases streptomycete, and streptomycete sends out in wheat
Symbiosis can be formed with wheat root immediately after bud, root long, the strain fresh weight, plant dry weight of wheat, then, wheat can be effectively facilitated
Growth need to absorb fertilizer, the fertilizer in internal layer fertilizer core discharges therewith at this time, the starch/polyethylene alcohol wrapped up outside fertilizer core
It can play the role of fertilizer control release, increase the fertile phase, improve the absorption rate of fertilizer.And starch/polyethylene alcohol can nature drop
Solution, will not remain in the soil, environmentally protective.
Preferably, fertilizer core includes 30-45 parts of parts by weight of urea, 5-10 parts of trbasic zinc phosphate, peroxophosphoric acid in the step (1)
20-30 parts of calcium, 10-20 parts of potassium sulfate and 1-5 parts of borax.
N P and K needed for fertilizer contains plant growth also includes zinc fertilizer and boron fertilizer, meets the growth demand of wheat.
Preferably, starch/polyethylene alcohol Modified Membrane includes following encapsulation steps in the step (2)：
(1) starch is gelatinized 20-50min at 80-90 DEG C；
(2) polyvinyl alcohol is added, continues stirring until dissolution；
(3) glycerol and Tween-80 solution is added, and system PH is adjusted to 1-2 using hydrochloric acid solution；
(4) crosslinking agent is added, persistently stirs 10-60min, obtains into film liquid；
(5) it is atomized using high pressure gas at film liquid, spraying coating, natural cooling is carried out to fertilizer core in a fluidized bed
Afterwards, the fertilizer core of starch/polyethylene alcohol Modified Membrane cladding is obtained.
After starch gelatinization, polyvinyl alcohol is added, and in the case that system PH is adjusted to 1-2, dextrin will form milky white
Crosslinking agent is added without forming gel in the liquid of color at this time so that the side group of starch and polyvinyl alcohol reacts to each other, formed at
Film liquid then can make the liquid mist that forms a film using high steam, and spray to the fertilizer core in fluidized bed at this time by heating
Mist, fertilizer core can be wrapped up rapidly, and the fertilizer core of starch/polyethylene alcohol Modified Membrane cladding is formed after cooling.
Preferably, the mass ratio of the starch and polyvinyl alcohol is 1-5:1.Starch and polyvinyl alcohol are easier under the ratio
It forms glue film and glue film intensity is larger.
Preferably, the crosslinking agent is formaldehyde.Aldehyde radical on formaldehyde can promote starch and polyvinyl alcohol to crosslink instead
It answers.
Preferably, the temperature of the fluidized bed is 50-75 DEG C, atomization speed 1.5-5ml/L.
Preferably, the mass ratio of the calcium alginate and agar is 1-3:1, the calcium alginate and streptomycete bacterium solution matter
Amount is than being 2-4:1, sodium polyphosphate and chitosan mass ratio are 1:40-60.
Chitosan is easily by sodium polyphosphate crosslinking, after calcium alginate compounded, chitosan/calcium alginate easy to form
Composite gel system, and chitosan increases the toughness and mechanical stability of gel.Also, inventor has found when inventing creation
Although capsule and pill can be prepared in the value of sodium polyphosphate and chitosan mass ratio in very large range, when poly phosphorus
Sour sodium and chitosan mass ratio are 1:It is best to the protecting effect of streptomycete when 40-60.
Preferably, concentration is 1-2wt% in the acetic acid aqueous solution, the calcium chloride water concentration is 1-3wt%,
The concentration of the Tween-80 aqueous solution is 0.5-1wt%.
Preferably, chitosan concentration is 0.1-0.5wt% in the chitosan acetic acid solution.
Preferably, the sterilising conditions are at 120 DEG C, sterilize 20-60min.
The beneficial effects of the present invention are：(1) there is interior outer double-layer structure, outer layer releases streptomycete bacterial manure, internal layer fertilizer core
Discharge chemical fertilizer, and the collocation of the various fertilizer of fertilizer core is reasonable, by be able to satisfy medicinal material different phase to N P and K and zinc fertilizer,
The requirement of boron fertilizer；(2) coated fertilizer of fertilizer core had both been able to satisfy the controlled release demand of fertilizer, slowed down nutrient release rate, increased
The fertile phase improves utilization rate of fertilizer, reduces fertilizer application frequency, and fertilizer and rhizobium can be isolated, has an impact it not between each other；
(3) outer layer is chitosan/calcium alginate gel, can completely cut off that chain bacterium is mould with extraneous contact, the mould number of viable of maintenance chain bacterium
And activity；(4) material used is biodegradable material, will not be remained in soil, environmentally protective.
Specific embodiment
The present invention program is more clearly and completely described below in conjunction with specific embodiment, it is clear that described implementation
Example is only a part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, belongs to protection scope of the present invention.
Embodiment 1：The preparation step of bio-bacterial manure capsule and pill is as follows：
(1) 35 parts of parts by weight of urea, 10 parts of trbasic zinc phosphate, 30 parts of calcium superphosphate, 20 parts of potassium sulfate and 5 parts of borax are clayed into power,
It is granulated after mixing, fertilizer core is made；
(2) 30g starch is gelatinized at 80 DEG C 20min, 10g polyvinyl alcohol is added, continues stirring until dissolution；
(3) the 0.5wt% Tween-80 solution of 10g glycerol and 5ml is added, and system PH is adjusted to 1 using hydrochloric acid solution；
(4) 5g formaldehyde is added, persistently stirs 10-60min, obtains into film liquid；
(5) be atomized using high pressure gas at film liquid with the atomization speed of 3ml/L, in 70 DEG C of fluidized beds to fertilizer core into
It goes and is sprayed coating, after natural cooling, the fertilizer core of starch/polyethylene alcohol Modified Membrane cladding.
(6) 15g agar is soluble in water, under stirring, 40g calcium alginate is added, then sterilizes at 120 DEG C
30min, and above-mentioned 15g streptomycete bacterium solution and 20g fertilizer core is added, mixed liquor is obtained, and above-mentioned mixed liquor is added dropwise in oil,
Form microballoon；
(7) chitosan of 10g is dissolved in the 1.5wt% acetic acid aqueous solution of 400ml, under stirring, by 0.25g poly
Sodium phosphate and microballoon are added in chitosan acetic acid solution；
(8) microballoon is taken out, is cleaned using the Tween-80 aqueous cleaning of 0.5wt%, then with deionized water；And it will be after cleaning
Microballoon is added in 1wt% calcium chloride water, stirs 7h, takes out drying, obtains bio-bacterial manure capsule and pill.
Embodiment 2：The preparation step of bio-bacterial manure capsule and pill is as follows：
(1) 43 parts of parts by weight of urea, 7 parts of trbasic zinc phosphate, 30 parts of calcium superphosphate, 15 parts of potassium sulfate and 5 parts of borax are clayed into power, is mixed
It is granulated after conjunction, fertilizer core is made；
(2) 50g starch is gelatinized at 90 DEG C 45min, 15g polyvinyl alcohol is added, continues stirring until dissolution；
(3) the 0.7wt% Tween-80 solution of 8g glycerol and 10ml is added, and system PH is adjusted to 1.5 using hydrochloric acid solution；
(4) 7g formaldehyde is added, persistently stirs 10-60min, obtains into film liquid；
(5) it is atomized using high pressure gas at film liquid with the atomization speed of 1.5ml/L, to fertilizer core in 75 DEG C of fluidized beds
Carry out spraying coating, after natural cooling, the fertilizer core of starch/polyethylene alcohol Modified Membrane cladding.
(6) 60g agar is soluble in water, under stirring, 70g calcium alginate is added, then sterilizes at 120 DEG C
60min, and above-mentioned 30g streptomycete bacterium solution and 40g fertilizer core is added, mixed liquor is obtained, and above-mentioned mixed liquor is added dropwise in oil,
Form microballoon；
(7) chitosan of 20g is dissolved in the 1wt% acetic acid aqueous solution of 600ml, under stirring, by 0.33g poly phosphorus
Sour sodium and microballoon are added in chitosan acetic acid solution；
(8) microballoon is taken out, is cleaned using the Tween-80 aqueous cleaning of 1wt%, then with deionized water；And it will be micro- after cleaning
Ball is added in 3wt% calcium chloride water, stirs 15h, takes out drying, obtains bio-bacterial manure capsule and pill.
Embodiment 3：The preparation step of bio-bacterial manure capsule and pill is as follows：
(1) 45 parts of parts by weight of urea, 8 parts of trbasic zinc phosphate, 30 parts of calcium superphosphate, 13 parts of potassium sulfate and 4 parts of borax are clayed into power, is mixed
It is granulated after conjunction, fertilizer core is made；
(2) 45g starch is gelatinized at 85 DEG C 30min, 10g polyvinyl alcohol is added, continues stirring until dissolution；
(3) the 1wt% Tween-80 solution of 15 glycerol and 5ml is added, and system PH is adjusted to 2 using hydrochloric acid solution；
(4) 10g formaldehyde is added, persistently stirs 10-60min, obtains into film liquid；
(5) it is atomized using high pressure gas at film liquid with the atomization speed of 1.5ml/L, to fertilizer core in 50 DEG C of fluidized beds
Carry out spraying coating, after natural cooling, the fertilizer core of starch/polyethylene alcohol Modified Membrane cladding.
(6) 50g agar is soluble in water, under stirring, 100g calcium alginate is added, then sterilizes at 120 DEG C
60min, and above-mentioned 40g streptomycete bacterium solution and 50g fertilizer core is added, mixed liquor is obtained, and above-mentioned mixed liquor is added dropwise in oil,
Form microballoon；
(7) chitosan of 30g is dissolved in the 2wt% acetic acid aqueous solution of 900ml, under stirring, by 0.6g poly phosphorus
Sour sodium and microballoon are added in chitosan acetic acid solution；
(8) microballoon is taken out, is cleaned using the Tween-80 aqueous cleaning of 0.8wt%, then with deionized water；And it will be after cleaning
Microballoon is added in 2wt% calcium chloride water, stirs 18h, takes out drying, obtains bio-bacterial manure capsule and pill.
Comparative example 1：The difference from embodiment 1 is that the dosage of sodium polyphosphate is 1g when preparing capsule and pill, make poly
Sodium phosphate and chitosan mass ratio are 1:20, remaining is same as Example 1.
Comparative example 2：The difference from example 2 is that the dosage of sodium polyphosphate is 0.25g when preparing capsule and pill, make more
Polyphosphate sodium and chitosan mass ratio are 1:80, remaining is same as Example 1.
Comparative example 3：The difference from embodiment 1 is that fertilizer core does not use starch/polyethylene alcohol to change when preparing capsule and pill
Property film cladding, remaining is same as Example 1.
Table 1：Different sodium polyphosphates and chitosan mass compare the protective effect of streptomycete bacterial strain.
As seen from table, when sodium polyphosphate and chitosan mass ratio are 1:When 40-60, the survival rate of bacterium is higher, and is more than
1 in this range, such as comparative example 1:20 and comparative example in 1:When 80, the survival rate of bacterium has different degrees of decline,
This is because chitosan crosslinked degree is too high or too low to be adversely affected the survival of streptomycete.
Table 2：Whether starch/polyethylene alcohol Modified Membrane coated fertilizer core streptomycete bacterial strain survival rate is used.
When not using starch/polyethylene alcohol Modified Membrane coated fertilizer core, the survival rate of streptomycete is formed sediment relative to having used
Powder/polyvinyl alcohol modification film cladding will be greatly reduced.
Claims (10)
1. a kind of wheat preparation method of bio-bacterial manure capsule and pill, which is characterized in that including following preparation step：
（1）By fertilizer drying, milling is then granulated, is prepared into fertilizer core；
（2）Fertilizer core is coated using starch/polyethylene alcohol Modified Membrane；
（3）Streptomycete bacterial strain is put into stationary culture in culture medium, obtains streptomycete bacterium solution；
（4）Agar is soluble in water, under stirring, calcium alginate is added, then sterilizes, and above-mentioned streptomycete bacterium solution is added
With fertilizer core, mixed liquor is obtained；
（5）Above-mentioned mixed liquor is added dropwise in oil, microballoon is formed；
（6）It dissolves the chitosan in acetic acid aqueous solution, under stirring, sodium polyphosphate and microballoon is added to chitosan
In acetic acid solution；
（7）Microballoon is taken out, is cleaned using Tween-80 aqueous cleaning, then with deionized water；
（8）Microballoon after cleaning is added in calcium chloride water, 1-24h is stirred, drying is taken out, obtains bio-bacterial manure capsule and pill.
2. a kind of preparation method of wheat bio-bacterial manure capsule and pill according to claim 1, which is characterized in that the step
（1）Middle fertilizer core include 30-45 parts of parts by weight of urea, 5-10 parts of trbasic zinc phosphate, 20-30 parts of calcium superphosphate, 10-20 parts of potassium sulfate and
1-5 parts of borax.
3. a kind of preparation method of wheat bio-bacterial manure capsule and pill according to claim 1 or 2, which is characterized in that described
Step（2）Middle starch/polyethylene alcohol Modified Membrane includes following encapsulation steps：
（1）Starch is gelatinized 20-50min at 80-90 DEG C；
（2）Polyvinyl alcohol is added, continues stirring until dissolution；
（3）Glycerol and Tween-80 solution is added, and system pH is adjusted to 1-2 using hydrochloric acid solution；
（4）Crosslinking agent is added, persistently stirs 10-60min, obtains into film liquid；
（5）It is atomized using high pressure gas at film liquid, spraying coating, natural cooling is carried out to fertilizer core in a fluidized bed
Afterwards, the fertilizer core of starch/polyethylene alcohol Modified Membrane cladding is obtained.
4. a kind of preparation method of wheat bio-bacterial manure capsule and pill according to claim 3, which is characterized in that the starch
Mass ratio with polyvinyl alcohol is 1-5:1.
5. a kind of preparation method of wheat bio-bacterial manure capsule and pill according to claim 3 or 4, which is characterized in that described
Crosslinking agent is formaldehyde.
6. a kind of preparation method of wheat bio-bacterial manure capsule and pill according to claim 5, which is characterized in that the fluidisation
The temperature of bed is 50-75 DEG C, and atomization speed is 1.5-5 ml/L.
7. a kind of preparation method of wheat bio-bacterial manure capsule and pill according to claim 1, which is characterized in that the seaweed
The mass ratio of sour calcium and agar is 1-3:1, the calcium alginate and streptomycete bacterium solution mass ratio are 2-4:1, sodium polyphosphate with
Chitosan mass ratio is 1:40-60.
8. a kind of preparation method of wheat bio-bacterial manure capsule and pill according to claim 1 or claim 7, which is characterized in that described
Concentration is 1-2wt% in acetic acid aqueous solution, and the calcium chloride water concentration is 1-3wt%, the concentration of the Tween-80 aqueous solution
For 0.5-1wt%.
9. a kind of preparation method of wheat bio-bacterial manure capsule and pill according to claim 8, which is characterized in that the shell is poly-
Chitosan concentration is 0.1-0.5wt% in sugared acetic acid solution.
10. a kind of preparation method of wheat bio-bacterial manure capsule and pill according to claim 1 or 8, which is characterized in that described
Sterilising conditions are at 120 DEG C, and sterilize 20-60min.
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| CN108314547A (en) * | 2018-04-20 | 2018-07-24 | 史丹利化肥遂平有限公司 | A kind of complex microorganism coating type depot fertilizer and preparation method thereof |
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