CN104211449B - A kind of particulate state microbiobacterial agent and production method thereof - Google Patents
A kind of particulate state microbiobacterial agent and production method thereof Download PDFInfo
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Abstract
The present invention relates to microbiobacterial agent field, be specifically related to a kind of particulate state microbiobacterial agent and production method thereof, said preparation take tailings of iron ore as matrix, molasses are Nutrient medium, be binding agent with 2wt% chitosan aqueous solution, molasses, clay, and access formula bacterial classification after adding little water, obtain particulate state microbiobacterial agent through secondary granulation, air-dry drying, said preparation achieves the recycling of tailings of iron ore; Achieve the seed manure of safe synergy with broadcasting, the development for modern agriculture provides efficient, economic microbiobacterial agent.
Description
Technical field
The present invention relates to microbiobacterial agent field, be specifically related to a kind of particulate state microbiobacterial agent and production method thereof.
Background technology
China is that chemical fertilizer maximum in the world uses state and nitrogen fertilizer production state, chemical fertilizer occupies very important status really in the agriculture production of China, but it is serious that the continuous excessive use of chemical fertilizer has caused soil compaction, soil microorganisms serious unbalance soil-borne disease is on the rise, soil fertility declines, and quality of agricultural product reduces.Continue development to go down, prospect is troubling.Microbiobacterial agent has improvement Soil structure, eliminates soil compaction, makes crop root flourishing, and regulation and control plant growth, strengthens crop disease prevention resistance against diseases, improves crops quality and output, and the advantage such as free from environmental pollution.So the soil remediation of microbiobacterial agent in China's agriculture production, increase production and improve productivity, protection of the environment, guarantee in food safety etc. significant.
Microbiobacterial agent develops relatively slower in the agricultural application of China, and one is because scientific research strength is weak, does not break through at bacteria selection, domestication and the technical elements such as fermentation technique, bacterial classification compatibility.Two is disconnect especially in application aspect and scientific research, lack application data accurately, and make to apply job development delayed, on market, a lot of related products does not reach national standard, DeGrain, is more unfavorable for that it popularizes.Three is the common granulation processs of the many employings of current microbiobacterial agent, and viable bacteria easy in inactivation, pellet moisture is higher, and seed manure easily occurs caking phenomenon with sowing time, limits use and the effect of product.
Therefore, be necessary that a kind of efficient, economic moisture of exploitation is low, activity is high, effective, mix with chemical fertilizer and do not lump, seed manure can be realized with the granule type microbiobacterial agent broadcast to meet the demand in market and agriculture production.
Summary of the invention
For many weak points that prior art exists, the invention provides a kind of is matrix with tailings of iron ore, molasses are Nutrient medium, be binding agent with 2wt% chitosan aqueous solution, molasses, clay, and access formula bacterial classification after adding little water, through the particulate state microbiobacterial agent that secondary granulation, air-dry drying obtain, said preparation achieves the recycling of tailings of iron ore; Achieve the seed manure of safe synergy with broadcasting, the development for modern agriculture provides efficient, economic microbiobacterial agent, has cost low, effective, can Soil structure be improved, realize soil remediation, increase soil fertility, reach the seed manure of safe synergy with the effect broadcasting object.
Concrete technical scheme of the present invention is:
A kind of particulate state microbiobacterial agent, is characterized in that: its main active principle is counted by weight:
Tailings of iron ore 70 ~ 80 parts, 2wt% chitosan aqueous solution 5 ~ 10 parts, 2 ~ 5 parts, molasses, clay 10 ~ 15 parts, formula bacterium 2 ~ 5 parts;
Wherein said formula bacterium comprises bacillus cereus, bacillus megaterium, subtilis, Bacillus licheniformis, milk-acid bacteria and streptomyces microflavus, and its mass ratio is: 25 ~ 35:5 ~ 15:5 ~ 15:15 ~ 25:5 ~ 15:5 ~ 15.
Contriver selects tailings of iron ore to be matrix, major cause is in tailings of iron ore containing various trace elements, the compositions such as iron, zinc, boron, calcium, magnesium, silicon, sulphur, phosphorus, potassium and a small amount of soil ulmin, these compositions can provide sufficient mineral origin for plant, take full advantage of waste, and extremely low for the impact of environment, extra pollution can not be brought to farmland.
In described tailings of iron ore, predominant quantity per-cent is: CaO < 6%, MgO < 2%, SO
3< 1%, SiO
2< 7%, FeO < 9%, MnO < 0.1%, K
2o < 0.2%; Should be more than 100 orders by being crushed to fineness during use, to facilitate follow-up machine-shaping.
Adopt and add the source of nutrition of molasses as bacterial classification, mainly because it is with low cost and nutritious, farthest can reduce production cost.Simultaneously honey and clay and 2wt% chitosan aqueous solution all have good cohesiveness, the effective constituent in component can be adhered to each other, facilitate later stage granulating and forming;
Another different part of the present invention and prior art be exactly have employed accurate proportioning formula bacterium as effective constituent, it contains bacillus cereus, bacillus megaterium, subtilis, Bacillus licheniformis, milk-acid bacteria and streptomyces microflavus; Wherein said bacillus cereus bacterium numbering is CMCC63305, bacillus megaterium bacterium numbering is ACCC01667, Bacillus subtilis strain is numbered ACCC10242, Bacillus licheniformis strain is numbered ACCC19372, lactic acid bacteria culturers is numbered CICC22703, streptomyces microflavus bacterium numbering is CICC11006.Above-mentioned bacterial classification all directly can be obtained by existing approach, and contriver does not repeat them here; Why select above-mentioned bacterial classification, major cause is as follows:
Wherein the flora imbalance of Bacillus licheniformis adjustable reaches therapeutic purpose, and body can be impelled to produce antibacterial substance, kill pathogenic bacterium; There is unique biology and take oxygen mechanism of action by force, suppress the growth and breeding of pathogenic bacterium; Go back decomposable asymmetric choice net hazardous and noxious substances, purification soil simultaneously.Have stronger proteolytic enzyme, lipase, diastatic activity, its proteolytic enzyme produced can regulate soil acidity or alkalinity, and can produce various plants growth hormone, promotes plant growth; There is the ability of very strong degraded plant and animal residues; Improve the soil organism, improvement soil;
Described streptomyces microflavus is a kind of multi-functional strain, can produce T-1384, Spiramycin Base.The upper diseases prevention that is often used in agriculture is kept a full stand of seedings; Can accelerate organic decomposition, the necessary various nutritive substance of release crop, the efficiency transforming available nitrogen is 5-13%; The ability transforming available phosphorus is 7-15%; The ability transforming effective potassium (water-soluble potassium and replacement property potassium) is 8-16%; The growth hormone (indolylacetic acid, naphthylacetic acid) of high-content, Plant hormones regulators,gibberellins, antibiotic, the thin growth regulatory substance such as spore mitogen (zeatin, ribosylzeatin) and organic acid (succsinic acid) can also be produced, play and promote crop growth, enhancing photosynthetic rate, bring out adversity gene to express, play drought resisting, the degeneration-resistant effect such as cold-resistant; In addition it also can produce actinomycin, cycloheximide isoreactivity material, and playing restraining effect to 32 kind of plant pathogenic bacterias, fungi, virus, is the jinx of continuous cropping (continuous cropping) soil-borne disease of crop; Effectively can suppress the root rot, bacterial wilt, blight etc. of crop; Its meta-bolites and distinctive odor---the borneol fragrance that gives out in addition, has repellent action in various degree to some subterranean pest-insects;
Described milk-acid bacteria (Lactobacillus) can secrete the lactic acid with extremely strong sterilizing ability, and harmful microbe can be suppressed to breed and activity, also can accelerate the decomposition of organic substance.
Described bacillus cereus can improve soil microenvironment and produce antimicrobial substance, suppresses harmful microbe breeding, and the unnecessary nutritive ingredient in degraded soil, removes fertilizer damage, improves fertilizer efficiency, also can produce bacteria protease simultaneously.
Described bacillus megaterium can improve fertilizer efficiency, by invalid phosphorus is converted into available phosphorus, effectively improves the specific absorption of Soil Phosphorus, alleviate disease while degraded medicine is residual, can control nutrition and other resources of rhizosphere, causes pathogenic bacteria to reduce living space and condition; Make that plant related organization cell walls thickens, fibrosis, degree of lignification improve, and form the two silicon layer of cutin outward at epidermal area, form the barrier stoping germ invasion and attack together.
The subtilyne that can produce in described subtilis thalli growth process, polymyxin, nystatin, linear gramicidins isoreactivity material, the conditioned pathogen of these active substances to pathogenic bacterium or autogenous infection has obvious restraining effect; The free oxygen in environment can be consumed rapidly simultaneously, and promote the growth of milk-acid bacteria, produce the organic acids such as lactic acid, indirectly suppress the growth of other pathogenic bacterium; The enzymes such as thalline self synthesis α-amylase, proteolytic enzyme, lipase, cellulase, are conducive to the growth of plant.
Above-mentioned each bacterium fits together by contriver, determine its concrete species and application percentage, there is good gain effect to each other, and owing to have employed honey as nutritive substance, take tailings of iron ore as matrix, advantageously in the Growth and reproduction of above-mentioned each bacterium, thus better effect can be played.
Contriver, through further research, determines that its main active principle is counted by weight:
Tailings of iron ore 70 parts, 2wt% chitosan aqueous solution 5 parts, 2 parts, molasses, clay 15 parts, formula bacterium 3 parts; Described formula bacterium comprises bacillus cereus, bacillus megaterium, subtilis, Bacillus licheniformis, milk-acid bacteria and streptomyces microflavus, and its mass ratio is: 30:15:12:20:11:12.
The particulate state microbiobacterial agent that final the present invention obtains have gemma rate high, bring back to life fast, effective, improvement Soil structure, strengthen soil fertility, remove the advantage such as fertilizer damage, when particularly solving crop-planting, seed manure is with the difficult problem broadcast, that is: can not dissolve when microbiobacterial agent and composite fertilizer, Bulk Blending Fertilizer are used in combination, and substantially increase the absorption rate of composite fertilizer or Bulk Blending Fertilizer, reduce cost, add output.To microbiobacterial agent apply and the Sustainable development of modern agriculture serves vital role.
The production method that then there is provided particulate state microbiobacterial agent of another invention of the present invention, concrete steps are as follows:
In proportion by tailings of iron ore, formula bacterium, clay Homogeneous phase mixing, afterwards and spray application to the particle that granulating disc causes particle diameter 1-1.5mm after the 2wt% chitosan aqueous solution of half, the molasses of half and water being mixed, and air-dry at normal temperatures by cylinder;
By the small-particle after air-dry, then spray residue the 2wt% chitosan aqueous solution of half, the molasses of half, caused the finished particle of particle diameter 2-3mm by granulating disc, and again by packaging final prod after cylinder at normal temperatures air-dry, screening;
The consumption of described water is 5-10 part.
The invention has the beneficial effects as follows:
1, microbiobacterial agent of the present invention adopts bacillus cereus, bacillus megaterium, subtilis, Bacillus licheniformis, milk-acid bacteria and streptomyces microflavus to carry out compound, easy to use, mix fertile bottom application, spread fertilizer over the fields, ditch spread, to spread manuer in holes, also after water soluble, pouring is executed, is rushed and execute, and all reaches outstanding effect; Achieve waste resource recycle, iron ore slag cost is low, medium trace element rich content, can promote that plant rhizosphere grows, breeding, improvement soil, eliminates and hardens, water-permeable and air permeable, impels well developed root system; Potassium decomposing, phosphorus decomposing, fixed nitrogen improve fertilizer efficiency and reduce fertilizer amount; Suppress harmful bacteria breeding in soil, the generation of various disease such as prevention soil-borne disease, continuous cropping etc.; Realize the effect increasing income, improve quality of agricultural product.
2, utilize the nitrogen fixation of genus bacillus and Bacillus licheniformis and the nitrogen fixation of milk-acid bacteria plant endogenesis, the effective fixed nitrogen of plant can be helped from many aspects to utilize nitrogenous source in soil, Promoting plant growth, increasing both production and income.
3, microbiobacterial agent of the present invention mainly utilizes and multiplely has vinelandii effect genus bacillus and streptomyces microflavus as production bacterial classification, can ensure the living bacteria count amount of product, extend quality guarantee period and the shelf-lives of product.
4, the living bacteria count in microbiobacterial agent of the present invention reaches 2 ~ 1,000,000,000/gram.
5, the starting material of microbiobacterial agent of the present invention are wide material sources, with low cost, and can produce on a large scale, product cost is low, effective, biological safety is high, and fermentation period is short, preparation technology is simple, after the granulation of secondary normal temperature is air-dry, maintains original activity of each microorganism, thus ensure that the high-quality and efficient of product of the present invention.There is the possibility of suitability for industrialized production, be suitable for universal and promote.
Embodiment
Embodiment 1
A kind of particulate state microbiobacterial agent, its main active principle is counted by weight:
Tailings of iron ore 70 parts, 2wt% chitosan aqueous solution 5 parts, 2 parts, molasses, clay 15 parts, formula bacterium 3 parts; Described formula bacterium comprises bacillus cereus, bacillus megaterium, subtilis, Bacillus licheniformis, milk-acid bacteria and streptomyces microflavus, and its mass ratio is: 30:15:12:20:11:12.
Wherein said bacillus cereus bacterium numbering is CMCC63305, bacillus megaterium bacterium numbering is ACCC01667, Bacillus subtilis strain is numbered ACCC10242, Bacillus licheniformis strain is numbered ACCC19372, lactic acid bacteria culturers is numbered CICC22703, streptomyces microflavus bacterium numbering is CICC11006;
In described tailings of iron ore, predominant quantity per-cent is: CaO5.5%, MgO1.5%, SO
30.4%, SiO
25.2%, FeO8.1%, MnO0.06%, K
2o0.11%, is crushed to more than 100 orders for subsequent use;
The production method of above-mentioned particulate state microbiobacterial agent, concrete steps are as follows:
In proportion by tailings of iron ore, formula bacterium, clay Homogeneous phase mixing, afterwards and spray application to the particle that granulating disc causes particle diameter 1-1.5mm after the 2wt% chitosan aqueous solution of half, the molasses of half and water being mixed, and air-dry at normal temperatures by cylinder;
By the small-particle after air-dry, then spray residue the 2wt% chitosan aqueous solution of half, the molasses of half, caused the finished particle of particle diameter 2-3mm by granulating disc, and again by packaging final prod after cylinder at normal temperatures air-dry, screening;
The consumption of described water is 5-10 part.
Embodiment 2
A kind of particulate state microbiobacterial agent, its main active principle is counted by weight:
Tailings of iron ore 80 parts, 2wt% chitosan aqueous solution 10 parts, 5 parts, molasses, clay 10 parts, formula bacterium 5 parts; Described formula bacterium comprises bacillus cereus, bacillus megaterium, subtilis, Bacillus licheniformis, milk-acid bacteria and streptomyces microflavus, and its mass ratio is: 25:10:10:25:7:15.
Wherein said bacillus cereus bacterium numbering is CMCC63305, bacillus megaterium bacterium numbering is ACCC01667, Bacillus subtilis strain is numbered ACCC10242, Bacillus licheniformis strain is numbered ACCC19372, lactic acid bacteria culturers is numbered CICC22703, streptomyces microflavus bacterium numbering is CICC11006;
In described tailings of iron ore, predominant quantity per-cent is: CaO4.1%, MgO1.3%, SO
30.2%, SiO
26.4%, FeO7.2%, MnO0.08%, K
2o0.09%, is crushed to more than 100 orders for subsequent use;
The production method of above-mentioned particulate state microbiobacterial agent, concrete steps are as follows:
In proportion by tailings of iron ore, formula bacterium, clay Homogeneous phase mixing, afterwards and spray application to the particle that granulating disc causes particle diameter 1-1.5mm after the 2wt% chitosan aqueous solution of half, the molasses of half and water being mixed, and air-dry at normal temperatures by cylinder;
By the small-particle after air-dry, then spray residue the 2wt% chitosan aqueous solution of half, the molasses of half, caused the finished particle of particle diameter 2-3mm by granulating disc, and again by packaging final prod after cylinder at normal temperatures air-dry, screening;
The consumption of described water is 5-10 part.
Embodiment 3
A kind of particulate state microbiobacterial agent, its main active principle is counted by weight:
Tailings of iron ore 75 parts, 2wt% chitosan aqueous solution 8 parts, 4 parts, molasses, clay 13 parts, formula bacterium 2 parts; Described formula bacterium comprises bacillus cereus, bacillus megaterium, subtilis, Bacillus licheniformis, milk-acid bacteria and streptomyces microflavus, and its mass ratio is: 35:5:5:15:5:15.
Wherein said bacillus cereus bacterium numbering is CMCC63305, bacillus megaterium bacterium numbering is ACCC01667, Bacillus subtilis strain is numbered ACCC10242, Bacillus licheniformis strain is numbered ACCC19372, lactic acid bacteria culturers is numbered CICC22703, streptomyces microflavus bacterium numbering is CICC11006;
In described tailings of iron ore, predominant quantity per-cent is: CaO5.2%, MgO1.8%, SO
30.48%, SiO
26.3%, FeO8.3%, MnO0.07%, K
2o0.14%, is crushed to more than 100 orders for subsequent use;
The production method of above-mentioned particulate state microbiobacterial agent, concrete steps are as follows:
In proportion by tailings of iron ore, formula bacterium, clay Homogeneous phase mixing, afterwards and spray application to the particle that granulating disc causes particle diameter 1-1.5mm after the 2wt% chitosan aqueous solution of half, the molasses of half and water being mixed, and air-dry at normal temperatures by cylinder;
By the small-particle after air-dry, then spray residue the 2wt% chitosan aqueous solution of half, the molasses of half, caused the finished particle of particle diameter 2-3mm by granulating disc, and again by packaging final prod after cylinder at normal temperatures air-dry, screening;
The consumption of described water is 5-10 part.
Experimental example
Experimental example 1
Bottom application: soybean use time every mu ground use the microbiobacterial agent 2.5KG described in embodiment 1, Direct Uniform dispense in farmland, test-results is as follows: visible microbiobacterial agent of the present invention effectively can improve the output of crop.
Experimental example 2
Bottom application: when peanut uses, in experiment one, every mu of ground uses the microbiobacterial agent 5KG described in embodiment 1; In experiment two, every mu of ground uses the microbiobacterial agent 5KG described in embodiment 2; Direct Uniform dispense in farmland, test-results is as follows:
Peanut Seedling Test
Microbial preparation provided by the present invention can promote that peanut germinates after using as can be seen here, and main root grows, and hair root increases; Root system of plant stalwartness from seedling stage, basal part of stem is wide, and blade great Ye is dark green, successful, and final volume increase can reach more than 30%.
Experimental example 3
During the paddy seedbed use of bottom application, every mu of ground uses the microbiobacterial agent 2.5KG described in embodiment 1;
The microbiobacterial agent 5KG described in embodiment 1 every mu is used after spreading fertilizer over the fields rice field rice transplanting;
Net result shows:
1, can promote that paddy rice germinates, main root grows, hair root is vigorous, the stem phase, portion was wide, and band evil rate is high; Can promote that from seedling stage to the stage of yellow ripeness rice root dry weight increases; Paddy rice root/shoot ratio is increased in fringe phase to dough stage beginning; Fringe dry-matter accumulation is promoted in dough stage and the stage of yellow ripeness;
2, field experiment shows: all have certain prevention effect to rice sheath blight disease, panicle blast, Folium Sesami pinta, false smut etc., control rate is respectively 19.18-27.72%, 28.33-44.21%, 54.50-74.11%, 63.76-72.75%, is 16.75-53% to the prevention effect of snout moth's larva.
3, compared with the control, microbial preparation of the present invention can improve Tillering Ability in Rice, increases effective fringe, spike length and examples explain, raising setting percentage, improve output and can reach 8.8%.
4, there is joint fertilizer, volume increase, improve non-specific immunity enhancing resistance, alleviate soil compaction enhancing land fertility, promote the multiple efficacies such as precocity, oil recovery enhancement.
Experimental example 4
Bottom application: when potato uses, every mu of ground uses the microbiobacterial agent 5KG described in embodiment 1;
Net result shows:
Can promote potato sprouting, Miao Qimiao strengthens, and has obvious improving effect, have good prevention effect to potato early epidemic and late blight to soil.
Effect: volume increase 255 kgs/acre and 193.9 kgs/acre compared with control group, volume increase 22.7% and 17.3%.Experimental example 5
Bottom application: when tomato uses, every mu of ground uses the microbiobacterial agent 5KG described in embodiment 1;
Impose: topdress in the best fruiting period, during use, every mu of ground uses the microbiobacterial agent 5KG described in embodiment 1;
Net result shows:
Miao Qimiao is strong, well developed root system, stem spacing are short, and blade is evenly dark green, during flowering result early, impose and can promote root system diauxic growth, extend fruiting period, improve fruit quality, improve storage tolerance.
The root-rot of tomato, stem rot, Huang are withered, the root disease such as to wither has good preventive and therapeutic effect, have certain treatment redemption effect simultaneously.
Have good releasing effect to the moss in protecting field, ten days take effect.
Effect: volume increase more than 50% compared with control group, effect is quite obvious.
Experimental example 6
Bottom application: when muskmelon uses, every mu of ground uses the microbiobacterial agent 5KG described in embodiment 1;
Impose: after muskmelon setting, during use, every mu of ground uses the microbiobacterial agent 5KG described in embodiment 1;
Net result shows:
Use rear soil obviously to loosen, pellet good, preserve moisture and fertility ability is strong, and soil porosity increases by two to three times.And there is earthworm.
Volume increase 1000 jin, goes on the market the earliest, finally pulls up seedlings compared with control group.Mouthfeel is fine simultaneously, and mass color is good, and resistance against diseases is strong, and the long-acting fruit of shelf-lives is very remarkable.
In above-mentioned experimental example, after using microbiobacterial agent provided by the present invention, farmland land quality is not affected, and there is obvious improving effect.
Claims (5)
1. a particulate state microbiobacterial agent, is characterized in that: its main active principle is counted by weight:
Tailings of iron ore 70 ~ 80 parts, 2wt% chitosan aqueous solution 5 ~ 10 parts, 2 ~ 5 parts, molasses, clay 10 ~ 15 parts, formula bacterium 2 ~ 5 parts;
Described formula bacterium comprises bacillus cereus, bacillus megaterium, subtilis, Bacillus licheniformis, milk-acid bacteria and streptomyces microflavus, and its mass ratio is: 25 ~ 35:5 ~ 15:5 ~ 15:15 ~ 25:5 ~ 15:5 ~ 15.
2. particulate state microbiobacterial agent according to claim 1, is characterized in that: its main active principle is counted by weight:
Tailings of iron ore 70 parts, 2wt% chitosan aqueous solution 5 parts, 2 parts, molasses, clay 15 parts, formula bacterium 3 parts; Described formula bacterium comprises bacillus cereus, bacillus megaterium, subtilis, Bacillus licheniformis, milk-acid bacteria and streptomyces microflavus, and its mass ratio is: 30:15:12:20:11:12.
3. particulate state microbiobacterial agent according to claim 1 and 2, is characterized in that: in described tailings of iron ore, predominant quantity per-cent is: CaO < 6%, MgO < 2%, SO
3< 1%, SiO
2< 7%, FeO < 9%, MnO < 0.1%, K
2o < 0.2%; Its fineness is more than 100 orders.
4. particulate state microbiobacterial agent according to claim 1 and 2, it is characterized in that: in described formula bacterium, described bacillus cereus bacterium numbering is CMCC63305, bacillus megaterium bacterium numbering is ACCC01667, Bacillus subtilis strain is numbered ACCC10242, Bacillus licheniformis strain is numbered ACCC19372, lactic acid bacteria culturers is numbered CICC22703, streptomyces microflavus bacterium numbering is CICC11006.
5. the production method of particulate state microbiobacterial agent described in claim 1 or 2, is characterized in that: concrete steps are as follows:
In proportion by tailings of iron ore, formula bacterium, spray application to the particle that granulating disc causes particle diameter 1-1.5mm after the 2wt% chitosan aqueous solution of half, the molasses of half and water being mixed after clay Homogeneous phase mixing, and air-dry at normal temperatures by cylinder;
By the small-particle after air-dry, then spray residue the 2wt% chitosan aqueous solution of half, the molasses of half, caused the finished particle of particle diameter 2-3mm by granulating disc, and again by packaging final prod after cylinder at normal temperatures air-dry, screening;
The consumption of described water is 5-10 part.
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| CN108207942A (en) * | 2018-01-10 | 2018-06-29 | 泰安市国泰民安生物科技有限公司 | A kind of composite microbial microbial inoculum for preventing agrobacterium |
| CN110407638A (en) * | 2019-09-05 | 2019-11-05 | 大连海微生物有限公司 | A kind of microbial bacteria agglomeration-wrapping dry-proof pelleting method |
| CN111057556A (en) * | 2019-12-24 | 2020-04-24 | 鞍钢集团矿业有限公司 | Coastal saline-alkali soil improvement agent and improvement method |
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Effective date of registration: 20190329 Address after: 116032 No. 12 Promotion Road, Ganjingzi District, Dalian City, Liaoning Province, 1-5-4 Patentee after: Qu Yanhong Address before: 271000 Jiaoyu Town, Daiyue District, Taian City, Shandong Province Patentee before: TAIAN XIBEI LONGJI BIOLOGICAL SCIENCE & TECHNOLOGY CO., LTD. |