CN110128221A - A kind of straw biological charcoal base soil phosphorus reactive conditioners and preparation method thereof - Google Patents
A kind of straw biological charcoal base soil phosphorus reactive conditioners and preparation method thereof Download PDFInfo
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- CN110128221A CN110128221A CN201910569065.0A CN201910569065A CN110128221A CN 110128221 A CN110128221 A CN 110128221A CN 201910569065 A CN201910569065 A CN 201910569065A CN 110128221 A CN110128221 A CN 110128221A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
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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
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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Abstract
The present invention discloses a kind of straw biological charcoal base soil phosphorus reactive conditioners and preparation method thereof, belong to agricultural technology field, the straw biological charcoal base soil phosphorus reactive conditioners, in parts by weight, including 40-60 parts of sour modified straw charcoal, 10-15 parts of chelating agent, 5-10 parts of phosphorus decomposing microbial inoculum, 10-15 parts of acidulant, 5-10 parts of filler；The present invention is by straw biological charcoal to the absorption-desorption Properties Control of phosphorus in optimal level, meets the needs of crop is to phosphorus, realize soil phophorus fix and activate between balance, prevent the leaching of phosphorus from discharging risk while meeting crop demand, with good economy, environment and ecological benefits.
Description
Technical field
The present invention relates to agricultural technology field, more particularly to a kind of straw biological charcoal base soil phosphorus reactive conditioners and
Preparation method.
Background technique
Phosphorus ore is the main source and a kind of nonrenewable resources of phosphate fertilizer.Phosphate fertilizer has crop growth important
Effect, but because phosphate fertilizer utilization efficiency is lower, to meet crop nutrition content needs, need long-term a large amount of application phosphate fertilizer, wherein most phosphorus
Fertilizer is fixed the phosphorus compound for forming slightly solubility in the soil, and fertilizer efficiency is difficult to play.Therefore, researching and developing one kind can prevent
Only phosphate fertilizer is fixed, but can the soil phosphorus reactive conditioners of gradually activating soil stationary state phosphorus be of great significance.
Research about phosphorus element activation has been the problem of recent domestic is paid close attention to jointly, also achieves a series of progress,
More typically apply all kinds of organic fertilizers and phosphorus decomposing microbial inoculum.But there is also some problems simultaneously, such as its application effect on farmland
Fruit is not significant, and largely application may bring secondary pollution problem again to organic fertilizer year after year, and microbial bacterial agent colonizes difficulty in the soil,
Period that plays a role is short etc..
Currently, charcoal base manure material is developed as matrix using charcoal or soil conditioner has become the master of charcoal Fertilizer Transformed application
Offense is to and the exploitation about charcoal base soil phosphorus reactive conditioners still has problems to need to solve, for example, charcoal
Property is not suitable for soil environment, and charcoal universal meta-alkalescence easily causes nutrient loss, passivation and change when as fertilizer matrix
Property；Simultaneously because charring process is different, different temperatures, oxygen and residence time etc. on charcoal absorption property influence difference compared with
Greatly, too high or too low to be all unfavorable for fertilizer slow release, so that crop utilization cannot be supplied in due course；Charcoal adsorbs and fixes phosphorus
Effect is stronger, and adsorption capacity is unstable, is unfavorable for crop absorption, therefore needs to make modification.
Summary of the invention
The object of the present invention is to provide a kind of straw biological charcoal base soil phosphorus reactive conditioners and preparation method thereof, with solution
Certainly the above-mentioned problems of the prior art, realize soil phophorus fix and activate between balance, while meeting crop demand
Prevent the leaching of phosphorus from discharging risk.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of straw biological charcoal base soil phosphorus reactive conditioners, in parts by weight, including following components:
40-60 parts of sour modified straw charcoal, 10-15 parts of chelating agent, 5-10 parts of phosphorus decomposing microbial inoculum, 10-15 parts of acidulant, filler 5-10
Part.
Further, the sour modified straw charcoal preparation method the following steps are included:
(1) agricultural crop straw is taken, is crushed to 3-5cm segment after air-drying；
(2) agricultural crop straw of crushing is placed in retort, is passed through nitrogen control partial pressure of oxygen≤7.5 × 10-14Pa, into
The high temperature anaerobic charing of row Asia；
(3) it after carbonizing, takes out, is cooled to room temperature, pure water, is subsequently placed in phosphoric acetic-boric acid mixed solution
Middle concussion is filtered and is dried to get sour modified straw charcoal after dipping is abundant.
Preferably, the agricultural crop straw includes but is not limited to corn stover, rice straw, wheat stalk and peanut stems
Stalk.
Further, the sub- high temperature anaerobic charing, carbonization temperature is 450-600 DEG C, and heating rate is 10 DEG C/min,
Carbonization time is 60-90min.
Further, the volume ratio of phosphoric acid, acetic acid and boric acid is 1:1:1 in the phosphoric acetic-boric acid mixed solution.
Further, the chelating agent is EDTA and/or EDTA-2Na.
Further, the phosphorus decomposing microbial inoculum is aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and the sulphur bar of mass ratio 2:1:1
Bacterium.
Further, the compound salt reduction microbial inoculum the preparation method comprises the following steps: by aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and sulphur
The culture of microorganism of bacillus is centrifuged 5min respectively with the revolving speed of 4000r/min, and dry 3h, makes aqueous in the environment of 35 DEG C
Amount is down to 15% hereinafter, being crushed at room temperature, and 80 meshes excessively mix to obtain the final product.
Further, the acidulant is one or more of fulvic acid, wood vinegar, hydrochloric acid or nitric acid.
Further, the filler is bentonite and/or talcum powder.
The preparation method of above-mentioned straw biological charcoal base soil phosphorus reactive conditioners, which is characterized in that by the modified straw of acid
40-60 parts of stalk charcoal, 10-15 parts of chelating agent, 5-10 parts of phosphorus decomposing microbial inoculum, 10-15 parts of acidulant, 5-10 parts of filler are sufficiently mixed
Close to get.
The invention discloses following technical effects:
(1) farm-forestry crop straw charring makes stalk more efficiently return agriculture using resource circulation utilization is advantageously implemented
Field；The alkalinity that charcoal can be effectively reduced is modified using phosphoric acetic-boric acid mixed solution, it is mixed with acidulant into
One step neutralizes the alkalinity of charcoal, so that charcoal effectively be avoided to easily cause nutrient loss, passivation and denaturation when being used as matrix
Defect；
(2) charring process is improved, specifies optimal charring process, temperature, charing residence time, heating rate and oxygen
The parameters coupling effect such as gas reaches ideal effect, improves charcoal yield and quality, and sour modified straw charcoal is than general
Charcoal pore structure is flourishing, and ash content is few, and adsorptivity is higher, and surface functional group increases, and is conducive to that salt ion, maximum limit is complexed
Degree remains phosphorus nutrients in raw material；
The acid modified straw charcoal is that crack one kind rich carbon generated under the conditions of sub- high temperature by organic matter organic
Object.The higher specific surface area of sour modified straw charcoal, flourishing microcellular structure, variable charge abundant make it possible to increase soil
Earth moisture holding capacity, cation exchange capacity (CEC) (CEC), adsorption ability and degree of base saturation reduce the soil weight.
(3) it is improved through peracid is modified, eliminates ash impurities and reduce the alkalinity of charcoal, by straw biological charcoal to phosphorus
Absorption-desorption Properties Control meets the needs of crop is to phosphorus in optimal level, and preparation process simple possible is suitable for industrialization
Production；
(4) sour modified straw charcoal has the ability of absorption phosphobacteria, and the two collaboration is converted with this to influence soil phosphorus
Process.In addition, to become absorbing phenolic, a variety of aromatic series and hydrophobicity organic for the surface hydrophobic of sour modified straw charcoal
The ideal place of compound.By these suction-operateds, sour modified straw charcoal can reduce phenolic compound in the soil liquid
Deng concentration, to weaken inorganic phosphorus fixation in soil.P availability is by a series of abiogenic reactions related with pH
It significantly affects, these reactions affect the ratio of soil Leaching Properties of Soluble Phosphorus and non-Leaching Properties of Soluble Phosphorus；To realize soil phophorus fixation and activation
Between balance, prevented while meeting crop demand phosphorus leaching discharge risk, have good economy, environment and Ecological Effect
Benefit.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of straw biological charcoal base soil phosphorus reactive conditioners, in parts by weight, including following components: sour modified straw
50 parts of charcoal, 13 parts of chelating agent, 8 parts of phosphorus decomposing microbial inoculum, 12 parts of acidulant, 8 parts of filler；Wherein, chelating agent is mass ratio 1:1
EDTA and EDTA-2Na；Phosphorus decomposing microbial inoculum is aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and the Thiobacillus of mass ratio 2:1:1；Acid
Agent is the fulvic acid and wood vinegar of mass ratio 8:2；Filler be etc. quality bentonite and talcum powder.
Wherein, the sour modified straw charcoal preparation method the following steps are included:
(1) it corn stover, rice straw, wheat stalk and the peanut straw of quality such as takes, is crushed to 3-5cm after air-drying
Segment；
(2) agricultural crop straw of crushing is placed in retort, is passed through nitrogen control partial pressure of oxygen≤7.5 × 10-14Pa, into
The high temperature anaerobic charing of row Asia, carbonization temperature are 550 DEG C, and heating rate is 10 DEG C/min, carbonization time 80min；
(3) it after carbonizing, takes out, is cooled to room temperature, pure water, being subsequently placed in phosphoric acetic-boric acid volume ratio is
It is shaken in the mixed solution of 1:1:1, after dipping is abundant, filters and dry to get sour modified straw charcoal.
Compound salt reduction microbial inoculum the preparation method comprises the following steps:
Aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and Thiobacillus strain are inoculated in fluid nutrient medium respectively, at 30 DEG C
Under 5min stirred with the speed of 400r/min, then carry out anaerobic fermentation 5 days, sampling Detection thalli growth situation and measurement, when
When viable bacteria total concentration number is more than 1,000,000,000/ml under microscope, stop fermentation；
By aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and the culture of microorganism of Thiobacillus, turned respectively with 4000r/min
Speed centrifugation 5min, dry 3h in the environment of 35 DEG C make water content be down to 15% hereinafter, be crushed at room temperature, cross 80 meshes, mix
It closes to obtain the final product.
The preparation method of above-mentioned straw biological charcoal base soil phosphorus reactive conditioners, which is characterized in that acid is modified
50 parts of straw biological charcoal, 13 parts of chelating agent, 8 parts of phosphorus decomposing microbial inoculum, 12 parts of acidulant, 8 parts of filler be sufficiently mixed to get.
Embodiment 2
A kind of straw biological charcoal base soil phosphorus reactive conditioners, in parts by weight, including following components: sour modified straw
40 parts of charcoal, 15 parts of chelating agent, 5 parts of phosphorus decomposing microbial inoculum, 15 parts of acidulant, 5 parts of filler；Wherein, chelating agent be EDTA and/or
EDTA-2Na；Phosphorus decomposing microbial inoculum is aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and the Thiobacillus of mass ratio 2:1:1；Acidulant is Huang
One or more of rotten acid, wood vinegar, hydrochloric acid or nitric acid；Filler is bentonite and/or talcum powder.
Wherein, the sour modified straw charcoal preparation method the following steps are included:
(1) corn stover is taken, is crushed to 3-5cm segment after air-drying；
(2) agricultural crop straw of crushing is placed in retort, is passed through nitrogen control partial pressure of oxygen≤7.5 × 10-14Pa, into
The high temperature anaerobic charing of row Asia, carbonization temperature are 600 DEG C, and heating rate is 10 DEG C/min, carbonization time 60min；
(3) it after carbonizing, takes out, is cooled to room temperature, pure water, being subsequently placed in phosphoric acetic-boric acid volume ratio is
It is shaken in the mixed solution of 1:1:1, after dipping is abundant, filters and dry to get sour modified straw charcoal.
Compound salt reduction microbial inoculum the preparation method comprises the following steps:
Aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and Thiobacillus strain are inoculated in fluid nutrient medium respectively, at 30 DEG C
Under 5min stirred with the speed of 400r/min, then carry out anaerobic fermentation 5 days, sampling Detection thalli growth situation and measurement, when
When viable bacteria total concentration number is more than 1,000,000,000/ml under microscope, stop fermentation；
By aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and the culture of microorganism of Thiobacillus, turned respectively with 4000r/min
Speed centrifugation 5min, dry 3h in the environment of 35 DEG C make water content be down to 15% hereinafter, be crushed at room temperature, cross 80 meshes, mix
It closes to obtain the final product.
The preparation method of above-mentioned straw biological charcoal base soil phosphorus reactive conditioners, which is characterized in that acid is modified
40 parts of straw biological charcoal, 15 parts of chelating agent, 5 parts of phosphorus decomposing microbial inoculum, 15 parts of acidulant, 5 parts of filler be sufficiently mixed to get.
Embodiment 3
A kind of straw biological charcoal base soil phosphorus reactive conditioners, in parts by weight, including following components: sour modified straw
60 parts of charcoal, 10 parts of chelating agent, 10 parts of phosphorus decomposing microbial inoculum, 10 parts of acidulant, 10 parts of filler；Wherein, chelating agent be EDTA and/
Or EDTA-2Na；Phosphorus decomposing microbial inoculum is aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and the Thiobacillus of mass ratio 2:1:1；Acidulant is
One or more of fulvic acid, wood vinegar, hydrochloric acid or nitric acid；Filler is bentonite and/or talcum powder.
Wherein, the sour modified straw charcoal preparation method the following steps are included:
(1) agricultural crop straw is taken, is crushed to 3-5cm segment after air-drying；
(2) agricultural crop straw of crushing is placed in retort, is passed through nitrogen control partial pressure of oxygen≤7.5 × 10-14Pa, into
The high temperature anaerobic charing of row Asia, carbonization temperature are 450 DEG C, and heating rate is 10 DEG C/min, carbonization time 90min；
(3) it after carbonizing, takes out, is cooled to room temperature, pure water, being subsequently placed in phosphoric acetic-boric acid volume ratio is
It is shaken in the mixed solution of 1:1:1, after dipping is abundant, filters and dry to get sour modified straw charcoal.
Preferably, the agricultural crop straw includes but is not limited to corn stover, rice straw, wheat stalk and peanut stems
Stalk.
Compound salt reduction microbial inoculum the preparation method comprises the following steps:
Aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and Thiobacillus strain are inoculated in fluid nutrient medium respectively, at 30 DEG C
Under 5min stirred with the speed of 400r/min, then carry out anaerobic fermentation 5 days, sampling Detection thalli growth situation and measurement, when
When viable bacteria total concentration number is more than 1,000,000,000/ml under microscope, stop fermentation；
By aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and the culture of microorganism of Thiobacillus, turned respectively with 4000r/min
Speed centrifugation 5min, dry 3h in the environment of 35 DEG C make water content be down to 15% hereinafter, be crushed at room temperature, cross 80 meshes, mix
It closes to obtain the final product.
The preparation method of above-mentioned straw biological charcoal base soil phosphorus reactive conditioners, which is characterized in that by the modified straw of acid
60 parts of stalk charcoal, 10 parts of chelating agent, 10 parts of phosphorus decomposing microbial inoculum, 10 parts of acidulant, 10 parts of filler be sufficiently mixed to get.
Comparative example 1
A kind of straw biological charcoal base soil phosphorus reactive conditioners, in parts by weight, including following components: straw biological charcoal
50 parts, 13 parts of chelating agent, 8 parts of phosphorus decomposing microbial inoculum, 12 parts of acidulant, 8 parts of filler；Wherein, chelating agent is the EDTA of mass ratio 1:1
And EDTA-2Na；Phosphorus decomposing microbial inoculum is aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and the Thiobacillus of mass ratio 2:1:1；Acidulant is
The fulvic acid and wood vinegar of mass ratio 8:2；Filler be etc. quality bentonite and talcum powder.
Wherein, the sour modified straw charcoal preparation method the following steps are included:
(1) it corn stover, rice straw, wheat stalk and the peanut straw of quality such as takes, is crushed to 3-5cm after air-drying
Segment；
(2) agricultural crop straw of crushing is placed in retort, is passed through nitrogen control partial pressure of oxygen≤7.5 × 10-14Pa, into
The high temperature anaerobic charing of row Asia, carbonization temperature are 550 DEG C, and heating rate is 10 DEG C/min, carbonization time 80min；
(3) it after carbonizing, takes out, is cooled to room temperature, pure water, dry to get straw biological charcoal.
Compound salt reduction microbial inoculum the preparation method comprises the following steps:
Aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and Thiobacillus strain are inoculated in fluid nutrient medium respectively, at 30 DEG C
Under 5min stirred with the speed of 400r/min, then carry out anaerobic fermentation 5 days, sampling Detection thalli growth situation and measurement, when
When viable bacteria total concentration number is more than 1,000,000,000/ml under microscope, stop fermentation；
By aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and the culture of microorganism of Thiobacillus, turned respectively with 4000r/min
Speed centrifugation 5min, dry 3h in the environment of 35 DEG C make water content be down to 15% hereinafter, be crushed at room temperature, cross 80 meshes, mix
It closes to obtain the final product.
The preparation method of above-mentioned straw biological charcoal base soil phosphorus reactive conditioners, which is characterized in that by modified straw
50 parts of stalk charcoal, 13 parts of chelating agent, 8 parts of phosphorus decomposing microbial inoculum, 12 parts of acidulant, 8 parts of filler be sufficiently mixed to get.
Related instrument and equipment is routine instrument device unless otherwise instructed in the embodiment above；It is related
The raw material of industry is commercially available regular industrial raw material unless otherwise instructed.
Test: crop plants corn is planted on the soil of the selected soil salinization in a manner of field experiment, is surveyed respectively
Surely using the soil phosphorus content of the soil of conventional fertilizer application and application straw biological charcoal base soil phosphorus reactive conditioners.Pass through data
Comparative analysis obtains the effect that straw biological charcoal base soil phosphorus reactive conditioners activate phosphorus element.
Test is implemented: comparing test in 3 experimental plots, if 3 processing, are respectively as follows: and do not apply modifying agent (CK), uses
Modifying agent (the BC1:3000kghm of embodiment 1-2) and using comparative example 1 modifying agent (BC2:3000kghm-2).Field planting
Topsoil (0~20cm) is uniformly applied after straw biological charcoal base soil phosphorus reactive conditioners being crossed 1mm sieve in first 10 days, simultaneously
Apply base manure (decomposed manure 7.5thm-2, Diammonium phosphate (DAP) 750kghm-2, potassium sulfate 600kghm-2).Test using with
Machine block design, is repeated 3 times, and plot area is 4m × 4m, and minizone is every 0.5m.
10d, 20d, 30d after being colonized slow seedling collect root region soil using method is shaken off, and are stored in 4 DEG C of ice
Case, for measuring soil phosphorus content.
By measurement, Phos constituent content is as shown in table 1 in soil,
1 Inorganic Phosphorus Fractions in Soil constituent content of table
| CK | BC1 | BC2 | |
| Ca2-P,mg/kg | 25 | 18 | 18 |
| Ca8-P,mg/kg | 44 | 65 | 77 |
| Ca10-P,mg/kg | 63 | 72 | 68 |
| Al-P,mg/kg | 56 | 58 | 57 |
| Fe-P,mg/kg | 76 | 88 | 81 |
| O-P,mg/kg | 105 | 78 | 60 |
Forms of Organic Phosphorus content is as shown in table 1 in soil,
2 soil organic phosphorus content of table
| CK | BC1 | BC2 | |
| LOP,mg/kg | 0.5 | 4 | 3 |
| MLOP,mg/kg | 80 | 86 | 108 |
| MROP,mg/kg | 22 | 27 | 39 |
| HROP,mg/kg | 45 | 53 | 65 |
The results show that apply this conditioner (BC) afterwards soil activation phosphorus component content significantly improve (LOP, MLOP, Fe-P,
Ca-P), close and store state phosphorus reduction (O-P), while the trend of the oriented middle organic phosphorus conversion of stability of inorganic phosphorus component, by straw biological charcoal
To the absorption-desorption Properties Control of phosphorus in optimal level, the supply potentiality of soil phosphorus nutrition are improved.
Embodiment described above is only that preferred embodiment of the invention is described, and is not carried out to the scope of the present invention
It limits, without departing from the spirit of the design of the present invention, those of ordinary skill in the art make technical solution of the present invention
Various changes and improvements, should all fall into claims of the present invention determine protection scope in.
Claims (10)
1. a kind of straw biological charcoal base soil phosphorus reactive conditioners, which is characterized in that in parts by weight, including following components:
40-60 parts of sour modified straw charcoal, 10-15 parts of chelating agent, 5-10 parts of phosphorus decomposing microbial inoculum, 10-15 parts of acidulant, filler 5-10
Part.
2. straw biological charcoal base soil phosphorus reactive conditioners according to claim 1, which is characterized in that the acid is modified
The preparation method of straw biological charcoal the following steps are included:
(1) agricultural crop straw is taken, is crushed to 3-5cm segment after air-drying；
(2) agricultural crop straw of crushing is placed in retort, is passed through nitrogen control partial pressure of oxygen≤7.5 × 10-14Pa is carried out sub-
High temperature anaerobic charing；
(3) it after carbonizing, takes out, is cooled to room temperature, pure water, is subsequently placed in phosphoric acetic-boric acid mixed solution and shakes
It swings, after dipping is abundant, filters and dry to get sour modified straw charcoal.
3. straw biological charcoal base soil phosphorus reactive conditioners according to claim 1, which is characterized in that the Asia high temperature
Anaerobism charing, carbonization temperature are 450-600 DEG C, and heating rate is 10 DEG C/min, carbonization time 60-90min.
4. straw biological charcoal base soil phosphorus reactive conditioners according to claim 1, which is characterized in that the phosphoric acid-
The volume ratio of phosphoric acid, acetic acid and boric acid is 1:1:1 in acetic acid-boric acid mixed solution.
5. straw biological charcoal base soil phosphorus reactive conditioners according to claim 1, which is characterized in that the chelating agent
For EDTA and/or EDTA-2Na.
6. straw biological charcoal base soil phosphorus reactive conditioners according to claim 1, which is characterized in that the phosphate solubilizing bacteria
Agent is aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and the Thiobacillus of mass ratio 2:1:1.
7. straw biological charcoal base soil phosphorus reactive conditioners according to claim 1, which is characterized in that the compound drop
Salt microbial inoculum the preparation method comprises the following steps: by aspergillus niger phosphorus-solubilizing bacteria, bacillus megaterium and the culture of microorganism of Thiobacillus, respectively with
The revolving speed of 4000r/min is centrifuged 5min, and dry 3h, makes water content be down to 15% hereinafter, breaking at room temperature in the environment of 35 DEG C
It is broken, it crosses 80 meshes, mixes to obtain the final product.
8. straw biological charcoal base soil phosphorus reactive conditioners according to claim 1, which is characterized in that the acidulant
For one or more of fulvic acid, wood vinegar, hydrochloric acid or nitric acid.
9. straw biological charcoal base soil phosphorus reactive conditioners according to claim 1, which is characterized in that the filler
For bentonite and/or talcum powder.
10. a kind of preparation method of the described in any item straw biological charcoal base soil phosphorus reactive conditioners of claim 1-9,
It is characterized in that, by 40-60 parts of sour modified straw charcoal, 10-15 parts of chelating agent, 5-10 parts of phosphorus decomposing microbial inoculum, acidulant 10-15
Part, 5-10 parts of filler be sufficiently mixed to get.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110396410A (en) * | 2019-09-05 | 2019-11-01 | 江西省中国科学院庐山植物园 | Soil conditioner and the preparation method and application thereof for controlling phosphorus levels |
| CN110423160A (en) * | 2019-09-02 | 2019-11-08 | 南开大学 | It is a kind of using cornstalk biological charcoal as the slow-release phosphate fertilizer preparation method of carrier |
| CN112772318A (en) * | 2019-11-10 | 2021-05-11 | 湖南金泰米业有限公司 | Rice seedling raising method |
| CN114685219A (en) * | 2022-04-29 | 2022-07-01 | 江西省农业科学院土壤肥料与资源环境研究所 | Rice field soil nutrient dilatation conditioner and preparation method and application method thereof |
| CN116986943A (en) * | 2023-06-20 | 2023-11-03 | 施可丰化工股份有限公司 | Green high-efficiency soybean straw biochar multi-polymer phosphate fertilizer synergist and preparation method thereof |
| CN116789499B (en) * | 2023-06-08 | 2024-03-22 | 四川农业大学 | Modified high-carbon phosphorus ratio biochar microbial inoculum, preparation method and application thereof |
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