CN107043316A - A kind of feature marine alga composite fertilizer and preparation method thereof - Google Patents
A kind of feature marine alga composite fertilizer and preparation method thereof Download PDFInfo
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- CN107043316A CN107043316A CN201710232152.8A CN201710232152A CN107043316A CN 107043316 A CN107043316 A CN 107043316A CN 201710232152 A CN201710232152 A CN 201710232152A CN 107043316 A CN107043316 A CN 107043316A
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- marine alga
- composite fertilizer
- feature
- brown sugar
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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
-
- 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
-
- 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
Abstract
The invention discloses a kind of feature marine alga composite fertilizer, include the raw material of following parts by weight：400 550 parts of urea, 200 300 parts of MAP, 100 200 parts of potassium chloride, 2 20 parts of marine alga, 0.01 2 parts of EM bacterium leavening agents, 0.01 2 parts of brown sugar, 1 20 parts of complex micro organism fungicide, 2 20 parts of humic acid, 1 10 parts of zinc sulfate, 1 10 parts of borax, 30 100 parts of filler.The present invention is provided simultaneously with alga fertilizer, the fertilizer efficiency of functional microbial fertilizer, to further enriching new-type fertilizer category, improving utilization rate of fertilizer and promoting crop upgrading volume increase significant.
Description
Technical field
The invention belongs to technical field of fertilizers, and in particular to a kind of feature marine alga composite fertilizer and preparation method thereof.
Background technology
Safe and environment-friendly, high-quality, efficient new-type fertilizer are Ensuring Food Safety and the important life for promoting modern agricultural development
Production data, Composite, long-actingization, functionalization are the important development directions of new-type fertilizer.Alga fertilizer is direct by raw material of marine alga
Production and processing or the new-type fertilizer being made with nitrogen, phosphorus, potassium, middle micro- compatibility, with environmental protection, nutritious, fertilizer
Utilization rate height, improved soil, the upgrading volume increase of promotion crop and other effects.
The fertilizer efficiency of alga fertilizer and its production technology are closely related.In order to preferably play fertilizer efficiency, it is necessary to enter to marine alga raw material
Row working process, extracts the effective active matter that crop can be promoted to absorb nutrient and growth in marine alga.Common extraction side
Method includes Physical, chemical method and bioanalysis；Wherein Physical is harsh to instrument requirements, cost is higher, and chemical method is because of useization
The active component of marine alga can be reduced by learning reagent, and bioanalysis farthest remains the biology of marine alga using microbial fermentation technology
Active material.
The present invention is fermented for the deficiency of marine alga active material extracting method in traditional alga fertilizer production process using EM bacterium
Marine alga raw material prepares alga liquid fertilizer synergist, and by the complex micro organism fungicide even spread with specific function to composite fertilizer
Grain surface, enhancing fertilizer provides the New function beyond nutrition, prepares feature marine alga composite fertilizer.Feature marine alga composite fertilizer is simultaneously
Possess alga fertilizer, the fertilizer efficiency of functional microbial fertilizer, to further enriching new-type fertilizer category, improving utilization rate of fertilizer and rush
Enter crop upgrading volume increase significant.
The content of the invention
The purpose of the present invention be overcome the deficiencies in the prior art there is provided one kind can improve utilization rate of fertilizer, improved soil,
Promote feature marine alga composite fertilizer of crop upgrading volume increase and preparation method thereof.
The present invention is achieved through the following technical solutions：
A kind of feature marine alga composite fertilizer, it is characterized in that：Include the raw material of following parts by weight：
400-550 parts of urea,
200-300 parts of MAP,
100-200 parts of potassium chloride,
2-20 parts of marine alga,
0.01-2 parts of EM bacterium leavening agents,
0.01-2 parts of brown sugar,
1-20 parts of complex micro organism fungicide,
2-20 parts of humic acid,
1-10 parts of zinc sulfate,
1-10 parts of borax,
30-100 parts of filler.
The preferred scheme of the present invention is that a kind of feature marine alga composite fertilizer includes the raw material of following parts by weight：
450-500 parts of urea,
220-270 parts of MAP,
150-180 parts of potassium chloride,
5-10 parts of marine alga,
0.1-1 parts of EM bacterium leavening agents,
0.1-1 parts of brown sugar,
2-8 parts of complex micro organism fungicide,
5-15 parts of humic acid,
2-5 parts of zinc sulfate,
2-5 parts of borax,
50-80 parts of filler.
Further preferred scheme of the invention is that a kind of feature marine alga composite fertilizer includes the raw material of following parts by weight：
483 parts of urea,
255 parts of MAP,
166 parts of potassium chloride,
8 parts of marine alga,
0.15 part of EM bacterium leavening agents,
0.15 part of brown sugar,
4.7 parts of complex micro organism fungicide,
10 parts of humic acid,
2.5 parts of zinc sulfate,
2.5 parts of borax,
68 parts of filler.
The present invention a kind of feature marine alga composite fertilizer, the EM bacterium leavening agents be EM bacterium solutions, total living bacteria count amount >=
5000000000/mL, including the 80 multiple beneficial floras such as photosynthetic bacteria, acetobacter, lactic acid bacteria, actinomyces, saccharomycete.
Further, the complex micro organism fungicide is liquid-type, including waxy Bacillus, colloid bacillus cereus, huge
Bacterium anthracoides, Bacillus circulans, bacillus brevis, azotobacter vinelandii, Penicillium notatum, pseudomonad, Thiobacillus thioxidans, vinegar
Bacillus；The percentage by weight of each raw material is as follows：Waxy Bacillus 10%, colloid bacillus cereus 10%, bacillus megaterium 10%,
Bacillus circulans 10%, bacillus brevis 10%, azotobacter vinelandii 10%, Penicillium notatum 10%, pseudomonad 10%, sulfur oxide sulphur bar
Bacterium 10%, acetobacter 10%；Living bacteria count amount >=0.5 hundred million/g of every kind of single microbial inoculum, total living bacteria count amount >=1,000,000,000/mL.
Further, the filler be ammonium nitrate, ammonium nitrate phosphorus, magnesium sulfate, ammonium chloride, ammonium sulfate, potassium sulfate, potassium nitrate,
One or more in clay, talcum powder, bentonite, diatomite.
Further, the marine alga is sea-tangle, yellow tang, sargassum, one or more kinds of mixtures of Enteromorpha.
Preferably, the urea is small particle urea, and wherein nitrogen content is 46%, and particle diameter is 0.85-2.80mm；
The MAP is in ordinary powder shape, and wherein nitrogen content is 11%, and phosphorus pentoxide content is 47%；Aoxidized in the potassium chloride
Potassium content is 60%；The zinc sulfate is in powdered, wherein Zn content >=21.5%；Boron contents are 11.0% in the borax；It is above-mentioned
Content is mass percent.
Preferably, the brown sugar is, in bronzing powdery, offer energy thing to be played in fermentation process
The effect of matter；The humic acid molecular weight is 2000-5000, and outward appearance is in brown-black powder shape, and nitrogen content is 1-6%, with butt
Count humic acid content >=60%.
Further, raw material of the invention is in addition to urea, marine alga, EM bacterium leavening agents, complex micro organism fungicide, remaining raw material
Particle diameter be respectively less than 1mm.
A kind of preparation method of feature marine alga composite fertilizer of the present invention, it is characterized in that：Comprise the following steps：
（1）Brown sugar is dissolved in warm water, stirred, is all dissolved in brown sugar after water, EM bacterium solutions are added into solution, after mixing
Fermentation tank is poured into, in anaerobic fermentation 24 hours in 40 DEG C；Marine alga is dried, is crushed to after below 1cm and is put into fermentation tank, in tank
Solution is fully mixed, and anaerobic fermentation 7-10 days, takes out after 40 DEG C under the conditions of control water content 25-30%, 20-40 DEG C of temperature
Under the conditions of dry, be crushed to below 1cm, Algae synergistic agent be made, it is standby；
（2）The raw materials such as urea, MAP, potassium chloride, humic acid, potassium chloride, zinc sulfate, borax, filler are measured respectively
Afterwards, Tower-type melt granulation is carried out, fertiliser granulates are obtained；
（3）After fertiliser granulates are cooled down, sieving, Algae synergistic agent, complex micro organism fungicide are distinguished into even application in particle table
Face；
（4）Feature marine alga composite fertilizer is made after metering packing.
Preferably, step（1）The mass ratio of middle brown sugar and water is 1：8；The mass ratio of EM bacterium solutions and brown sugar is 1:
1。
Preferably, step（1）Middle brown sugar melt temperature is 40 DEG C；Marine alga drying temperature is 45-60 DEG C.
The beneficial effects of the invention are as follows：The present invention is remained living in marine algae extract using EM bacterium solutions fermentation marine alga raw material
The high activity of property material；Rich in high activity marine algae extract and functional microbial, can improved soil, promote plant growth,
Improve the yield and quality；Comprehensively, scientific formulation, trace element and humic acid in addition, nutrition is balanced, and utilization rate is high for nutrient.
Embodiment
With reference to embodiment, the present invention is further detailed explanation.
Embodiment 1
A kind of common marine alga composite fertilizer, includes the raw material of following parts by weight：483 parts of urea, 255 parts of MAP, potassium chloride
166 parts, 8 parts of marine alga, 0.15 part of EM bacterium leavening agents, 0.15 part of brown sugar, 10 parts of humic acid, 2.5 parts of zinc sulfate, 2.5 parts of borax,
68 parts of filler.
The preparation method of the common marine alga composite fertilizer of the present embodiment, including with step：
（1）Prepare Algae synergistic agent：0.15 portion of brown sugar is taken, is dissolved in 1.2 parts of 40 DEG C of warm water（The mass ratio of water and brown sugar is 8：
1）, stir, be all dissolved in brown sugar after water, 0.15 part of EM bacterium solution is added into solution（The mass ratio of EM bacterium solutions and brown sugar
For 1：1）, fermentation tank is poured into after mixing, in anaerobic fermentation 24 hours in 40 DEG C；8 portions of marine algas are taken, in 45-60 DEG C of drying, are crushed to
Below 1cm, is put into fermentation tank, is fully mixed with solution in tank, detests under the conditions of control water content 25-30%, 20-40 DEG C of temperature
Aerobe fermentation 7-10 days, takes out and is dried under the conditions of 40 DEG C, be crushed to below 1mm, and Algae synergistic agent is made, standby；
（2）By 483 parts of urea, 255 parts of MAPs, 166 parts of potassium chloride, 10 parts of humic acids, 2.5 parts of zinc sulfate, 2.5 parts of boron
After the raw materials such as sand, 68 parts of fillers are measured respectively, Tower-type melt granulation is carried out；
（3）Previous step fertiliser granulates cooling, screening after, by Algae synergistic agent even application in its surface；
（4）Metering, packaging.
Obtain common marine alga composite fertilizer（25-10-10）, without complex micro organism fungicide.
Embodiment 2
A kind of feature marine alga composite fertilizer, includes the raw material of following parts by weight：483 parts of urea, 255 parts of MAP, chlorination
166 parts of potassium, 8 parts of marine alga, 0.15 part of EM bacterium leavening agents, 0.15 part of brown sugar, 4.7 parts of complex micro organism fungicide, 10 parts of humic acid,
2.5 parts of zinc sulfate, 2.5 parts of borax, 68 parts of filler.
The preparation method of the extra large composite fertilizer of the feature of the present embodiment, including with step：
（1）Prepare Algae synergistic agent：0.15 portion of brown sugar is taken, is dissolved in 1.2 parts of 40 DEG C of warm water（The mass ratio of water and brown sugar is 8：
1）, stir, be all dissolved in brown sugar after water, 0.15 part of EM bacterium solution is added into solution（The mass ratio of EM bacterium solutions and brown sugar
For 1：1）, fermentation tank is poured into after mixing, in anaerobic fermentation 24 hours in 40 DEG C；8 portions of marine algas are taken, in 45-60 DEG C of drying, are crushed to
Below 1cm, is put into fermentation tank, is fully mixed with solution in tank, detests under the conditions of control water content 25-30%, 20-40 DEG C of temperature
Aerobe fermentation 7-10 days, takes out and is dried under the conditions of 40 DEG C, be crushed to below 1mm, and Algae synergistic agent is made, standby；
（2）By 483 parts of urea, 255 parts of MAPs, 166 parts of potassium chloride, 10 parts of humic acids, 2.5 parts of zinc sulfate, 2.5 parts of boron
After the raw materials such as sand, 68 parts of fillers are measured respectively, Tower-type melt granulation is carried out；
（3）After the fertiliser granulates cooling of previous step, screening, by the uniform spray respectively of Algae synergistic agent, 4.7 parts of complex micro organism fungicides
It is applied to its surface；
（4）Metering, packaging.
Obtain common marine alga composite fertilizer（25-10-10）, containing complex micro organism fungicide.
Comparative example
From commercially available common NPK fertilizer as a comparison case, specification is 15-15-15.
Manure trial
Experiment is located at Linyi Linshu County Daxing town by applicant, and soil nutrient content is organic matter 12.82g/kg, alkali
Solve nitrogen 89mg/kg, rapid available phosphorus 13.7mg/kg, available potassium 98mg/kg.Wheat breed is Jimai 22.
Each processing plot area is 30 square metres, if 3 processing, 3 repetitions, totally 9 cells, random district's groups arrangement.
Experimental plot is rectangle, and surrounding sets protection row, and dose is 750kg/hm2, and cell dose is 2.25kg, and all fertilizer are equal
Applied with 70% as base fertilizer, the jointing stage imposes 30%.Test in sowing on October 12nd, 2015, application rate is 112.5kg/hm2,
In harvest on June 10th, 2016.
Agronomic Characters in Wheat and yield index such as following table：
As can be seen from the above table, the Agronomic Characters in Wheat and yield index of embodiment are above comparative example.It is real compared with comparative example
2.6% and 4.7% is respectively increased in the plant height for applying example 1 and embodiment 2, and 4.6% and 10.8% is respectively increased in spike number, and mass of 1000 kernel is respectively increased
4.0% and 6.7%, 1.6% and 2.6% is respectively increased in yield, and the fertilizer formula of this explanation marine alga composite fertilizer is more scientific, and fertilizer efficiency is higher,
The production of wheat and the raising of yield can be promoted.Compared with Example 1, the plant height of embodiment 2 improves 2.2%, and spike number is improved
5.9%, mass of 1000 kernel improves 2.5%, and output increased 0.9%, this explanation addition complex micro organism fungicide can further improve marine alga and answer
The fertilizer efficiency in Hefei.
Wheat grain quality such as following table：
As seen from the above table, the wheat quality index of embodiment is all higher than comparative example, compared with comparative example, embodiment 1 and embodiment 2
Protein content 2.1% and 5.7% is respectively increased, 2.8% and 5.3% is respectively increased in wet gluten content, and stabilization time is respectively increased
6.1% and 15.1%, this explanation is compared with Common compound fertilizer, and marine alga composite fertilizer can further improve wheat quality.With embodiment 1
Compare, the protein content of embodiment 2, wet gluten content, stabilization time are respectively increased 3.6%, 2.5%, 8.6%, this functions
Property marine alga composite fertilizer is more preferable to the raising effect of wheat quality.
In summary, feature marine alga composite fertilizer is that Algae synergistic agent and feature are added on the basis of conventional composite fertilizer
Microorganism, it is possible to increase fertility and the upgrading volume increase of promotion crop；According to different soils and agrotype, science collocation nutrient is excellent
Change formula, can further improve the fertilizer efficiency of marine alga composite fertilizer.Feature marine alga composite fertilizer meets the demand in new-type fertilizer market,
It is worthy of popularization.
Claims (10)
1. a kind of feature marine alga composite fertilizer, it is characterised in that：Include the raw material of following parts by weight：
400-550 parts of urea,
200-300 parts of MAP,
100-200 parts of potassium chloride,
2-20 parts of marine alga,
0.01-2 parts of EM bacterium leavening agents,
0.01-2 parts of brown sugar,
1-20 parts of complex micro organism fungicide,
2-20 parts of humic acid,
1-10 parts of zinc sulfate,
1-10 parts of borax,
30-100 parts of filler.
2. a kind of feature marine alga composite fertilizer according to claim 1, it is characterised in that：Include the original of following parts by weight
Material：
450-500 parts of urea,
220-270 parts of MAP,
150-180 parts of potassium chloride,
5-10 parts of marine alga,
0.1-1 parts of EM bacterium leavening agents,
0.1-1 parts of brown sugar,
2-8 parts of complex micro organism fungicide,
5-15 parts of humic acid,
2-5 parts of zinc sulfate,
2-5 parts of borax,
50-80 parts of filler.
3. a kind of feature marine alga composite fertilizer according to claim 2, it is characterised in that：Include the original of following parts by weight
Material：
483 parts of urea,
255 parts of MAP,
166 parts of potassium chloride,
8 parts of marine alga,
0.15 part of EM bacterium leavening agents,
0.15 part of brown sugar,
4.7 parts of complex micro organism fungicide,
10 parts of humic acid,
2.5 parts of zinc sulfate,
2.5 parts of borax,
68 parts of filler.
4. a kind of feature marine alga composite fertilizer according to any one of claim 1-3, it is characterised in that：The EM bacterium hair
Ferment agent is EM bacterium solutions, total living bacteria count amount >=5,000,000,000/mL, including photosynthetic bacteria, acetobacter, lactic acid bacteria, actinomyces, yeast
Bacterium.
5. a kind of feature marine alga composite fertilizer according to any one of claim 1-3, it is characterised in that：It is described compound micro-
Bacteria agent is liquid-type, including waxy Bacillus, colloid bacillus cereus, bacillus megaterium, Bacillus circulans, short bud
Spore bacillus, azotobacter vinelandii, Penicillium notatum, pseudomonad, Thiobacillus thioxidans, acetobacter.
6. a kind of feature marine alga composite fertilizer according to claim 5, it is characterised in that：In the complex micro organism fungicide
The percentage by weight of each raw material is as follows：Waxy Bacillus 10%, colloid bacillus cereus 10%, bacillus megaterium 10%, ring-type bud
Spore bacillus 10%, bacillus brevis 10%, azotobacter vinelandii 10%, Penicillium notatum 10%, pseudomonad 10%, Thiobacillus thioxidans 10%,
Acetobacter 10%；Living bacteria count amount >=0.5 hundred million/g of every kind of single microbial inoculum, total living bacteria count amount >=1,000,000,000/mL.
7. a kind of feature marine alga composite fertilizer according to any one of claim 1-3, it is characterised in that：The filler
For in ammonium nitrate, ammonium nitrate phosphorus, magnesium sulfate, ammonium chloride, ammonium sulfate, potassium sulfate, potassium nitrate, clay, talcum powder, bentonite, diatomite
One or more.
8. a kind of preparation method of feature marine alga composite fertilizer according to any one of claim 1-3, it is characterised in that：
Comprise the following steps：
Brown sugar is dissolved in warm water, stirred, is all dissolved in brown sugar after water, EM bacterium solutions are added into solution, is fallen after mixing
Enter fermentation tank, in anaerobic fermentation 24 hours in 40 DEG C；Marine alga is dried, crush after be put into fermentation tank, with solution in tank fully mix
Even, anaerobic fermentation 7-10 days, takes out and is dried under the conditions of 40 DEG C under the conditions of control water content 25-30%, 20-40 DEG C of temperature,
Below 1cm is crushed to, Algae synergistic agent is made, it is standby；
After the raw materials such as urea, MAP, potassium chloride, humic acid, potassium chloride, zinc sulfate, borax, filler are measured respectively,
Tower-type melt granulation is carried out, fertiliser granulates are obtained；
After fertiliser granulates are cooled down, sieving, Algae synergistic agent, complex micro organism fungicide are distinguished into even application in particle surface；
Feature marine alga composite fertilizer is made after metering packing.
9. a kind of preparation method of feature marine alga composite fertilizer according to claim 8, it is characterised in that：Step（1）In
The mass ratio of brown sugar and water is 1：8；The mass ratio of EM bacterium solutions and brown sugar is 1:1.
10. a kind of preparation method of feature marine alga composite fertilizer according to claim 8, it is characterised in that：Step（1）In
Brown sugar melt temperature is 40 DEG C；Marine alga drying temperature is 45-60 DEG C.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147919A (en) * | 2017-12-11 | 2018-06-12 | 新科环农（北京）生物科技有限公司 | Microorganism seaweed composite fertilizer and preparation method thereof |
| CN110981640A (en) * | 2019-12-18 | 2020-04-10 | 史丹利农业集团股份有限公司 | Functional stable fertilizer and preparation method and application thereof |
| CN111848272A (en) * | 2020-07-13 | 2020-10-30 | 广西伟恒生态农业有限公司 | Complete compound fertilizer and preparation method thereof |
| CN113277889A (en) * | 2021-06-23 | 2021-08-20 | 河西学院 | Algae-bacterium composite nutrient solution and preparation method and application thereof |
| CN113372167A (en) * | 2021-07-23 | 2021-09-10 | 黑龙江神飞生物科技股份有限公司 | Special compound fertilizer rich in microbial agent for corn |
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| CN104291919A (en) * | 2013-07-16 | 2015-01-21 | 山东恩宝生物科技有限公司 | Production method of seaweed-coated slow-release and controlled-release compound fertilizer |
| CN104761348A (en) * | 2015-03-25 | 2015-07-08 | 山东恩宝生物科技有限公司 | Alginic acid containing compound fertilizer with urease inhibiting effect and production method of alginic acid containing compound fertilizer |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104291919A (en) * | 2013-07-16 | 2015-01-21 | 山东恩宝生物科技有限公司 | Production method of seaweed-coated slow-release and controlled-release compound fertilizer |
| CN104761348A (en) * | 2015-03-25 | 2015-07-08 | 山东恩宝生物科技有限公司 | Alginic acid containing compound fertilizer with urease inhibiting effect and production method of alginic acid containing compound fertilizer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147919A (en) * | 2017-12-11 | 2018-06-12 | 新科环农（北京）生物科技有限公司 | Microorganism seaweed composite fertilizer and preparation method thereof |
| CN110981640A (en) * | 2019-12-18 | 2020-04-10 | 史丹利农业集团股份有限公司 | Functional stable fertilizer and preparation method and application thereof |
| CN111848272A (en) * | 2020-07-13 | 2020-10-30 | 广西伟恒生态农业有限公司 | Complete compound fertilizer and preparation method thereof |
| CN113277889A (en) * | 2021-06-23 | 2021-08-20 | 河西学院 | Algae-bacterium composite nutrient solution and preparation method and application thereof |
| CN113372167A (en) * | 2021-07-23 | 2021-09-10 | 黑龙江神飞生物科技股份有限公司 | Special compound fertilizer rich in microbial agent for corn |
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