CN108863515A - A kind of production technology of microbial liquid organic fertilizer - Google Patents
A kind of production technology of microbial liquid organic fertilizer Download PDFInfo
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- CN108863515A CN108863515A CN201810656174.1A CN201810656174A CN108863515A CN 108863515 A CN108863515 A CN 108863515A CN 201810656174 A CN201810656174 A CN 201810656174A CN 108863515 A CN108863515 A CN 108863515A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
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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
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Life Sciences & Earth Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
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- Fertilizers (AREA)
Abstract
The present invention provides a kind of production technology of microbial liquid organic fertilizer, the microbial liquid organic fertilizer is made of the raw material of following parts by weight, 20-25 parts of corn sugar residue, 10-15 parts of humic acid, urea 5-10, 5-10 parts of fishbone dust, 5-10 parts of edible fungi residue, 3-6 parts of fermentative microflora, 2-4 parts of seaweed slag, 2-4 parts of organic selenium, 2-4 parts of Iron Ore Powder, 2-3 parts of chitin, 1-2 parts of trace-element fertilizer, 1-2 parts of boric acid, 1-2 parts of organic carbon, 1-2 parts of natural plants growth stimulator, compoiste fermented microbial inoculum 0.5-1 parts of beneficial microbe, 0.5-1 parts of calcium, 0.5-1 parts of antivirotic, 0.5-1 parts of polyacrylamide, 0.5-1 parts of silicon, 0.5-1 parts of sodium molybdate.The present invention is added to nutrient and microelement necessary to plant growth in microbial liquid organic fertilizer, it can be fully absorbed by crop, improve the utilization rate of microbial liquid organic fertilizer, pass through fermenting twice in the raw material of microbial liquid organic fertilizer, raw material can sufficiently be decomposed, the utilization efficiency for improving raw material reduces the waste of raw material.
Description
Technical field
The present invention relates to fertilizer processing technique field, the production technology of specifically a kind of microbial liquid organic fertilizer.
Background technique
With the development of modern greenhouse agriculture, the popularization and application of pipeline fertilizer practice, trickle irrigation and sprinkler irrigation fertilization technology exist
China starts to popularize, and fertilizer is necessarily dissolved in water and is just able to achieve by the application of the technology, and more and more peasants are giving
It is also to be applied after fertilizer is dissolved in water during crop top dressing.Such as application No. is 201710865287.8 patent disclosures one
Kind new liquid has organic fertilizer, and which solve the problems inadequate with the presence of organic fertilizer fertility, but there is cannot be organic to having
Fertile raw material carries out fermenting twice, the problem that raw material utilization efficiency is low, fertilizer efficiency uniformity is not high.
Summary of the invention
It cannot be to there is organic fertilizer raw material to carry out two the purpose of the present invention is overcoming existing for existing microbial liquid organic fertilizer
Secondary fermentation, the problem that raw material utilization efficiency is low, fertilizer efficiency uniformity is not high, provide that a kind of production cost is low, production technology is easy to slap
It holds, to the microbial liquid organic fertilizer for having organic fertilizer raw material progress fermenting twice, raw material utilization efficiency height, fertilizer efficiency uniformity good
Production technology.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of microbial liquid organic fertilizer, the microbial liquid organic fertilizer are made of the raw material of following parts by weight, corn
20-25 parts of sugar residue, 10-15 parts of humic acid, urea 5-10,5-10 parts of fishbone dust, 5-10 parts of edible fungi residue, fermentative microflora 3-6
Part, 3-6 parts of plant ash, 2-4 parts of seaweed slag, 2-4 parts of organic selenium, 2-4 parts of Iron Ore Powder, 2-3 parts of chitin, trace-element fertilizer 1-
2 parts, 1-2 parts of boric acid, 1-2 parts of organic carbon, 1-2 parts of natural plants growth stimulator, beneficial microbe it is microbial inoculum 0.5-1 parts compoiste fermented,
0.5-1 parts of calcium, 0.5-1 parts of antivirotic, 0.5-1 parts of polyacrylamide, 0.5-1 parts of silicon, 0.5-1 parts of sodium molybdate.
The humic acid is any one in soil rotten phytic acid, coal humic acid, water body humic acid or mould humic acid
Kind or a variety of mixing, and by phosphorus content in humic acid be 3.5-5%, potassium content 4-6%.
The fermentative microflora is lactic acid bacteria, saccharomycete, monascus, actinomyces, Trichoderma viride, bifidocaterium, yellow strepto-
Bacterium, thermophilic actinomycete, bacillus subtilis, any one or more mixing glued in bacillus more.
The natural plants growth stimulator includes one or both of Ai Miting or heteroauxin.
The plant ash is remaining ashes after vegetation burning, and ashes crushed 100-120 mesh, obtains vegetation
Ash.
The trace mineral supplement is iron, boron, arsenic, manganese, copper, cobalt, any one or more mixing in molybdenum.
The compoiste fermented microbial inoculum of beneficial microbe be straw degradative bacterium, azotobacter, symbiotic nitrogen-fixing bacteria, phosphate solubilizing bacteria,
Any one or more mixing in potassium solubilizing bacteria or multi-functional bacterial strain.
The production technology includes the following steps：
One, prepared by raw material：Corn sugar residue, fishbone dust, edible fungi residue, seaweed slag are crushed respectively, cross 180-200 respectively
Mesh screen screening, each raw material after screening are mixed, and are uniformly mixed, and initial material is made；
Two, one time fermentation：The compoiste fermented microbial inoculum of beneficial microbe is added into initial material, carries out compost at normal temperature after mixing
Fermentation, fermentation time control are the 2-3 month, and fermentation initial material is made；
Three, secondary fermentation：Fermentation material after one time fermentation is put into fermentor, by humic acid, urea, organic selenium, Iron Ore Powder,
Chitin, trace-element fertilizer, boric acid, organic carbon, calcium, polyacrylamide, silicon, sodium molybdate are added by formula to fermentor,
It being stirred and mixes under the revolving speed of 1200-1500r/min with the fermentation initial material in fermentor, time control is 20-30min,
The water of 6-12 times of material total weight is added after being uniformly mixed into fermentor, fermentative microflora is added after water is added, in 800-
5-10min is stirred under the revolving speed of 1000r/min, control fermentation temperature is 30-35 DEG C, and fermentation time is 20-25 days, and fermentation is made
Material；
Four, it filters：Fermentation material is filtered by filter press, obtains fermentation liquid, remaining solid residue is collected as organic solid fertilizer
Raw material, right plant growth substance, antivirotic are added into fermentation liquid, is stirred under the revolving speed of 1000-1200r/min, the time control
It is made as 10-15min, after mixing evenly, material liquid is made；
Five, homogeneous：Material liquid is subjected to homogenization, temperature is 70-75 DEG C, and using double-stage homogenization, level-one homogenization pressure is 42-
46Mpa, double-stage homogenization pressure 25-28Mpa；
Six, it is concentrated：Material liquid after homogeneous is concentrated, material liquid is concentrated into 3-4 times of material total weight；
Seven, it sterilizes：Material liquid after concentration is sterilized, sterilization temperature control is 120-125 DEG C, and sterilizing time control is
10-15s；
Eight, filling：Material liquid concentrate progress after sterilization is filling, it tests after filling, qualified products are labelled, enter
Library saves, and there is organic fertilizer on obtained blade face.
Beneficial effect：The present invention is added to nutrient necessary to plant growth and micro in microbial liquid organic fertilizer
Element can be fully absorbed by crop, the utilization rate of microbial liquid organic fertilizer be improved, in the raw material of microbial liquid organic fertilizer
By fermenting twice, raw material can be sufficiently decomposed, improves the utilization efficiency of raw material, reduces the waste of raw material, is added to fish
Bone meal, edible fungi residue not only reduce the preparation cost of microbial liquid organic fertilizer, can also enrich micro- life as part material
The nutrient of object liquid organic fertilizer uniformly, improve to liquid charging stock liquid in microbial liquid organic fertilizer preparation process
The uniformity of active constituent in microbial liquid organic fertilizer.
Specific embodiment
Embodiment one：
A kind of microbial liquid organic fertilizer, the microbial liquid organic fertilizer are made of the raw material of following parts by weight, corn
20 parts of sugar residue, 15 parts of humic acid, urea 10,10 parts of fishbone dust, 7 parts of edible fungi residue, 5 parts of fermentative microflora, 4 parts of plant ash, sea
It is 4 parts of algae-residue, 4 parts of organic selenium, 4 parts of Iron Ore Powder, 3 parts of chitin, 2 parts of trace-element fertilizer, 2 parts of boric acid, 2 parts of organic carbon, natural
1 part of the compoiste fermented microbial inoculum of 2 parts of plant growth substance, beneficial microbe, 1 part of calcium, 1 part of antivirotic, 1 part of polyacrylamide, silicon 1
Part, 1 part of sodium molybdate.
The humic acid is soil rotten phytic acid, coal humic acid, water body humic acid by weight 1:1:2 mixture,
It and by phosphorus content in humic acid is 3.8%, potassium content 5%.
The fermentative microflora is saccharomycete, actinomyces, bifidocaterium, thermophilic actinomycete by weight 3:2:1:2 mixing
Object.
The natural plants growth stimulator is Ai Miting.
The plant ash is remaining ashes after vegetation burning, and ashes crushing is sieved with 100 mesh sieve, and obtains plant ash.
The trace mineral supplement is iron, arsenic, copper, molybdenum by weight 1:2:2:2 mixture.
The compoiste fermented microbial inoculum of beneficial microbe is straw degradative bacterium, symbiotic nitrogen-fixing bacteria, potassium solubilizing bacteria by weight 1:2:2
Mixture.
The production technology includes the following steps：
One, prepared by raw material：Corn sugar residue, fishbone dust, edible fungi residue, seaweed slag are crushed respectively, cross 200 meshes respectively
Mesh screen choosing, each raw material after screening are mixed, and are uniformly mixed, and initial material is made；
Two, one time fermentation：The compoiste fermented microbial inoculum of beneficial microbe is added into initial material, carries out compost at normal temperature after mixing
Fermentation, fermentation time control are 2 months, and fermentation initial material is made；
Three, secondary fermentation：Fermentation material after one time fermentation is put into fermentor, by humic acid, urea, organic selenium, Iron Ore Powder,
Chitin, trace-element fertilizer, boric acid, organic carbon, calcium, polyacrylamide, silicon, sodium molybdate are added by formula to fermentor,
It is stirred and mixes under the revolving speed of 1300r/min with the fermentation initial material in fermentor, time control is 30min, is uniformly mixed
8 times of material total weight of water is added in backward fermentor, adds fermentative microflora after water is added, is stirred under the revolving speed of 900r/min
10min is mixed, control fermentation temperature is 32 DEG C, and fermentation time is 24 days, and fermentation material is made；
Four, it filters：Fermentation material is filtered by filter press, obtains fermentation liquid, remaining solid residue is collected as organic solid fertilizer
Raw material, right plant growth substance, antivirotic are added into fermentation liquid, is stirred under the revolving speed of 1100r/min, time control is
Material liquid is made after mixing evenly in 13min；
Five, homogeneous：Material liquid is subjected to homogenization, temperature is 74 DEG C, and using double-stage homogenization, level-one homogenization pressure is 43Mpa,
Double-stage homogenization pressure 26Mpa；
Six, it is concentrated：Material liquid after homogeneous is concentrated, material liquid is concentrated into 3 times of material total weight；
Seven, it sterilizes：Material liquid after concentration is sterilized, sterilization temperature control is 124 DEG C, and sterilizing time control is 12s；
Eight, filling：Material liquid concentrate progress after sterilization is filling, it tests after filling, qualified products are labelled, enter
Library saves, and there is organic fertilizer on obtained blade face.
Embodiment two：
A kind of microbial liquid organic fertilizer, the microbial liquid organic fertilizer are made of the raw material of following parts by weight, corn
15 parts of sugar residue, 12 parts of humic acid, urea 10,7 parts of fishbone dust, 6 parts of edible fungi residue, 5 parts of purslane powder, 5 parts of fermentative microflora, grass
4 parts of wood ash, 4 parts of strontium chloride, 4 parts of seaweed slag, 3 parts of organic selenium, 3 parts of Iron Ore Powder, 3 parts of chitin, 2 parts of trace-element fertilizer, boron
Sour 2 parts, 2 parts of organic carbon, 2 parts of natural plants growth stimulator, 2 parts of citric acid, 1 part of the compoiste fermented microbial inoculum of beneficial microbe, Dalmatian chrysanthemum
1 part of powder, 1 part of calcium, 1 part of antivirotic, 1 part of bleeding agent, 1 part of polyacrylamide, 1 part of silicon, 1 part of sodium molybdate, 1 part of complexing agent.
The humic acid is soil rotten phytic acid, coal humic acid, water body humic acid, mould humic acid by weight 3:1:
2:2 mixture, and by phosphorus content in humic acid be 3.2%, potassium content 3.7%.
The fermentative microflora is lactic acid bacteria, saccharomycete, monascus, Trichoderma viride, streptomyces flavus by weight 2:1:
1:1:2 mixture.
The natural plants growth stimulator is heteroauxin.
The plant ash is remaining ashes after vegetation burning, and ashes crushed 150 meshes, obtains plant ash.
The edible fungi residue is the culture material that Edible Fungi is discarded in the process, and the water content of edible mushroom is controlled
For 25wt%, the content of organic matter 51%.
The trace mineral supplement is boron, manganese, copper, molybdenum by weight 2:1:3:1 mixture.
The compoiste fermented microbial inoculum of beneficial microbe is straw degradative bacterium, symbiotic nitrogen-fixing bacteria, potassium solubilizing bacteria, multi-functional bacterial strain are pressed
Weight ratio 3:1:2:4 mixture.
The production technology includes the following steps：
One, prepared by raw material：Corn sugar residue, fishbone dust, edible fungi residue, purslane powder, seaweed slag, perian insect powder are carried out respectively
It crushes, crosses the screening of 150 mesh screens respectively, each raw material after screening is mixed, and is uniformly mixed, and initial material is made；
Two, one time fermentation：The compoiste fermented microbial inoculum of beneficial microbe is added into initial material, carries out compost at normal temperature after mixing
Fermentation, fermentation time control are 1.5 months, and fermentation initial material is made；
Three, secondary fermentation：Fermentation material after one time fermentation is put into fermentor, by humic acid, urea, strontium chloride, organic selenium,
Iron Ore Powder, chitin, trace-element fertilizer, boric acid, organic carbon, citric acid, calcium, polyacrylamide, silicon, sodium molybdate are added by formula
Enter to fermentor, be stirred and mix under the revolving speed of 1600r/min with the fermentation initial material in fermentor, time control is
13 times of material total weight of water is added into fermentor, adds fermentative microflora after water is added by 40min after being uniformly mixed,
15min is stirred under the revolving speed of 1100r/min, control fermentation temperature is 36 DEG C, and fermentation time is 28 days, and fermentation material is made；
Four, it filters：Fermentation material is filtered by filter press, obtains fermentation liquid, remaining solid residue is collected as organic solid fertilizer
Raw material, right plant growth substance, antivirotic, bleeding agent, complexing agent are added into fermentation liquid, is stirred under the revolving speed of 1300r/min
It mixes, time control is 18min, after mixing evenly, material liquid is made；
Five, homogeneous：Material liquid is subjected to homogenization, temperature is 70-75 DEG C, and using double-stage homogenization, level-one homogenization pressure is 42-
46Mpa, double-stage homogenization pressure 25-28Mpa；
Six, it is concentrated：Material liquid after homogeneous is concentrated, material liquid is concentrated into 5 times of material total weight；
Seven, it sterilizes：Material liquid after concentration is sterilized, sterilization temperature control is 128 DEG C, and sterilizing time control is 10s；
Eight, filling：Material liquid concentrate progress after sterilization is filling, it tests after filling, qualified products are labelled, enter
Library saves, and there is organic fertilizer on obtained blade face.
The present invention is exemplarily described above in conjunction with embodiment, it is clear that the present invention implements not by above-mentioned side
The limitation of formula, if the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without
It improves the conception and technical scheme of the invention are directly applied to other occasions, it is within the scope of the present invention.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (8)
1. a kind of production technology of microbial liquid organic fertilizer, the microbial liquid organic fertilizer by following parts by weight original
Material composition, 20-25 parts of corn sugar residue, 10-15 parts of humic acid, urea 5-10,5-10 parts of fishbone dust, 5-10 parts of edible fungi residue,
It is 3-6 parts of fermentative microflora, 3-6 parts of plant ash, 2-4 parts of seaweed slag, 2-4 parts of organic selenium, 2-4 parts of Iron Ore Powder, 2-3 parts of chitin, micro-
1-2 parts of secondary element fertilizer, 1-2 parts of boric acid, 1-2 parts of organic carbon, 1-2 parts of natural plants growth stimulator, beneficial microbe are compoiste fermented
0.5-1 parts of microbial inoculum, 0.5-1 parts of calcium, 0.5-1 parts of antivirotic, 0.5-1 parts of polyacrylamide, 0.5-1 parts of silicon, sodium molybdate 0.5-1
Part.
2. microbial liquid organic fertilizer according to claim 1, it is characterised in that：The humic acid is soil corruption plant
Any one or more mixing in acid, coal humic acid, water body humic acid or mould humic acid, and by phosphorus content in humic acid
For 3.5-5%, potassium content 4-6%.
3. microbial liquid organic fertilizer according to claim 1, it is characterised in that：The fermentative microflora be lactic acid bacteria,
Saccharomycete, actinomyces, Trichoderma viride, bifidocaterium, streptomyces flavus, thermophilic actinomycete, bacillus subtilis, glues monascus more
Any one or more mixing in bacillus.
4. microbial liquid organic fertilizer according to claim 1, it is characterised in that：The natural plants growth stimulator includes love
One or both of the close court of a feudal ruler or heteroauxin.
5. microbial liquid organic fertilizer according to claim 1, it is characterised in that：The plant ash is after vegetation is burnt
Remaining ashes, and ashes be crushed into 100-120 mesh, obtain plant ash.
6. microbial liquid organic fertilizer according to claim 1, it is characterised in that：The trace mineral supplement is
Iron, boron, arsenic, manganese, copper, cobalt, any one or more mixing in molybdenum.
7. microbial liquid organic fertilizer according to claim 1, it is characterised in that：The beneficial microbe fermenting compound fungus
Agent be straw degradative bacterium, azotobacter, symbiotic nitrogen-fixing bacteria, phosphate solubilizing bacteria, potassium solubilizing bacteria or multi-functional bacterial strain in any one or
A variety of mixing.
8. a kind of production technology suitable for microbial liquid organic fertilizer as described in claim 1, which is characterized in that described
Production technology includes the following steps：
One, prepared by raw material：Corn sugar residue, fishbone dust, edible fungi residue, seaweed slag are crushed respectively, cross 180-200 respectively
Mesh screen screening, each raw material after screening are mixed, and are uniformly mixed, and initial material is made；
Two, one time fermentation：The compoiste fermented microbial inoculum of beneficial microbe is added into initial material, carries out compost at normal temperature after mixing
Fermentation, fermentation time control are the 2-3 month, and fermentation initial material is made；
Three, secondary fermentation：Fermentation material after one time fermentation is put into fermentor, by humic acid, urea, organic selenium, Iron Ore Powder,
Chitin, trace-element fertilizer, boric acid, organic carbon, calcium, polyacrylamide, silicon, sodium molybdate are added by formula to fermentor,
It being stirred and mixes under the revolving speed of 1200-1500r/min with the fermentation initial material in fermentor, time control is 20-30min,
The water of 6-12 times of material total weight is added after being uniformly mixed into fermentor, fermentative microflora is added after water is added, in 800-
5-10min is stirred under the revolving speed of 1000r/min, control fermentation temperature is 30-35 DEG C, and fermentation time is 20-25 days, and fermentation is made
Material；
Four, it filters：Fermentation material is filtered by filter press, obtains fermentation liquid, remaining solid residue is collected as organic solid fertilizer
Raw material, right plant growth substance, antivirotic are added into fermentation liquid, is stirred under the revolving speed of 1000-1200r/min, the time control
It is made as 10-15min, after mixing evenly, material liquid is made；
Five, homogeneous：Material liquid is subjected to homogenization, temperature is 70-75 DEG C, and using double-stage homogenization, level-one homogenization pressure is 42-
46Mpa, double-stage homogenization pressure 25-28Mpa；
Six, it is concentrated：Material liquid after homogeneous is concentrated, material liquid is concentrated into 3-4 times of material total weight；
Seven, it sterilizes：Material liquid after concentration is sterilized, sterilization temperature control is 120-125 DEG C, and sterilizing time control is
10-15s；
Eight, filling：Material liquid concentrate progress after sterilization is filling, it tests after filling, qualified products are labelled, enter
Library saves, and there is organic fertilizer on obtained blade face.
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| CN201810656174.1A CN108863515A (en) | 2018-06-24 | 2018-06-24 | A kind of production technology of microbial liquid organic fertilizer |
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| CN201810656174.1A CN108863515A (en) | 2018-06-24 | 2018-06-24 | A kind of production technology of microbial liquid organic fertilizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809950A (en) * | 2019-04-08 | 2019-05-28 | 无锡市路华肥料科技有限公司 | A kind of organic liquid fertilizer and preparation method thereof |
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2018
- 2018-06-24 CN CN201810656174.1A patent/CN108863515A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809950A (en) * | 2019-04-08 | 2019-05-28 | 无锡市路华肥料科技有限公司 | A kind of organic liquid fertilizer and preparation method thereof |
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Application publication date: 20181123 |