CN105948915A - Microbial film coating agent for preparation of microbial fertilizers - Google Patents
Microbial film coating agent for preparation of microbial fertilizers Download PDFInfo
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- CN105948915A CN105948915A CN201610297241.6A CN201610297241A CN105948915A CN 105948915 A CN105948915 A CN 105948915A CN 201610297241 A CN201610297241 A CN 201610297241A CN 105948915 A CN105948915 A CN 105948915A
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- peplos
- humic acid
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous 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
- C05G3/20—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for preventing the fertilisers being reduced to powder; Anti-dusting additives
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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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
Abstract
The invention provides a microbial film coating agent for preparation of microbial fertilizers. The microbial film coating agent contains biochemical humic acid or biochemical humate, agricultural composite amino acid powder, a biological growth promoter, a microbial agent, an anti-hardening agent, stone flour, a trace element salt and a dye special for fertilizers, wherein the mass ratio of the biochemical humic acid or biochemical humate, the agricultural composite amino acid powder, the biological growth promoter, the microbial agent, the anti-hardening agent, the stone flour, the trace element salt and the dye special for fertilizers is 2-5:15-25:1-3:1-2:8-20:45-60:10-25:0.5-1.5. The invention also provides a microbial compound fertilizer composition containing the microbial film coating agent. The microbial compound fertilizer composition is used for increasing vegetable yield, shortening the recovery period, reducing the disease rate, and/or improving soil fertility.
Description
Technical field
The invention belongs to microorganism formulation and technical field of fertilizer production, be specifically related to a kind of microbial envelope agent and preparation method thereof.
Background technology
Along with the ecological agriculture and the rise of pollution-free food production and development, microbial manure progressively causes the attention of people.Microbial manure refers to be applied to agricultural production, containing the goods of specified microorganisms live body.Its Main Function mechanism is the vital movement by contained microorganism, strengthens crop anti-adversity, increases plant absorption nutrient or plant growth, thus improves crop yield, improves quality of agricultural product and agroecological environment.Field test for many years, demonstrate and application shows: microbial manure can not only increase crop yield and improve agricultural product quality, culture fertility, also can reduce fertilizer amount, is utilized by the castoff regenerative in city, reduces environmental pollution.
In current agricultural production, using the cost that traditional fertilizer caused increases and problem of environmental pollution is more serious, and by tradition fertilizer, the part of chemical fertilizer substitutes and is complementary to one another, and this problem can be effectively alleviated in the special role of microbial manure.Along with the development of sustainable agriculture, the fields such as microbial manure will be in ecology as a kind of new-type fertilizer, organic agriculture and green, pollution-free food show huge application potential.
At present, microbial manure progressively becomes the main force of the fertilizer such as country of China ecological demonstration zone, green and organic farm products base, its economic benefits having, social effect and ecological effect simultaneously, contributes to the sustainable development of China's agricultural.
CN102936170A discloses a kind of microbial envelope agent for preparing composite microbial manure, is made up of firming agent, oils and fats, surfactant and culture of microorganism proportioning.Selected firming agent is hard paraffin, microcrystalline wax, ceresine etc., and selected surfactant is Polyethylene Glycol, high-carbon fatty alcohol polyoxyethylene ether, polyoxyethylene carboxylate etc..The document achieves active microorganism and adds and the purpose of fertilizer coating, but such as causes that crop alimentary is bad, yield is the highest, the problem of cycle length etc. of gathering owing to this invention exists some, causes actual application to be obstructed.
CN105085111A discloses a kind of biological organic type corn fertilizer, its component is: trace element, complex micro organism fungicide in straw mixture, Sargassum slag, edible fungi waste mushroom stick, humic acids, aminoacid, EDTA chelating, the weight portion of component is: straw mixture 10-60 part, Sargassum slag 5-25 part, edible fungi waste mushroom stick 10-40 part, humic acids 5-20 part, amino acid/11-25 parts, trace element 5-10 part in EDTA chelating, complex micro organism fungicide 1-10 part；Wherein straw mixture is Semen Maydis, wheat stalk is size-reduced prepares, and moisture is 5-10%；Described Sargassum slag is to extract Sargassum active substance by enzyme fermentation technology, is separated with Sargassum slag by seaweed extracted liquor after having fermented, and carries out Sargassum slag drying, pulverization process, obtains the black powder that fineness is 80-100 mesh, the content of organic matter 63%；Edible fungi waste mushroom stick is to produce the bacterium rod that edible fungi is finished, and the content of organic matter is at 25%-55%；Humic acids molecular weight is 2000-5000, and outward appearance is brown-black powder shape, humic acids content >=45% in terms of butt；In EDTA chelating, trace element is EDTA chelated magnesium, EDTA chelated zinc, the mixture of EDTA chelated iron, in powder；Complex micro organism fungicide be screening weight ratio be cellulose-degrading bacteria: lignin-degrading bacteria: deodorization bacterium: root nodule bacteria: nitrogen-fixing bacteria: phosphate solubilizing bacteria: the microbial inoculum of potassium solubilizing bacteria=3:3:2:1:3:3:2.This invention nutrient is comprehensive, promotes the raising of soil fertility, but owing to this fertilizer is easily caused soil compaction, and water retention property is the best, and therefore crop and soil cause in practice many negative effects.
Disclosing a kind of jujube tree organic-inorganic compound fertilizer special in CN104355886A, the weight portion of its raw material consists of: sugar slag 180～220, Chelates of Amino Acids And Trace Elements 18～25, fulvic acid 25～35, binding agent 45～60, carbamide 220～250, MAP 170～200, potassium chloride 80～90, sulfur ammonium 180～210 and killing pests and suppressing bacteria agent 20～50；The parts by weight of raw materials of killing pests and suppressing bacteria agent consists of: Pyrethrum 3～5, mentha leave 8～10, Folium Capsici 4～6, Flos Caryophylli 3～5, Azadirachta Indica A. 3～5 and plant sterol 9～12, dispersant 0.5～0.6, disintegrating agent 0.5～1.0, synergist 0.5～0.6 and penetrating agent 0.6～1.0.In Chelates of Amino Acids And Trace Elements, trace element is zinc, manganese, ferrum, copper, wherein, zinc: manganese: ferrum: copper；Synergist is Nafusaku, indolebutyric acid, brassinolide, organosilicon, tea saponin or methylenedioxy benzene derivant.But this compound organic and inorganic fertilizer also exists the defect that micronutrient levels is too much, complex process, cost of material are high, pollute environment etc., it is difficult to realize large-scale production.
Organic matter and microorganism agent and other plant nutrient ingredients according to the principle of coating controlled-release fertilizer and nutrients release mechanism, are made fertilizer envelope agent, are attached to fertilizer surface by peplos oil bag by the present invention.And found by the experiment of pork Caulis et Folium Brassicae junceae (land for growing field crops) agrochemical, coat fertilizer can increase crop yield, promote that crop is gathered in advance, also can increase soil fertility.
Summary of the invention
The present invention provides a kind of microbial envelope agent for preparing microbial manure, this microbial envelope agent comprises containing biochemical humic acid or biochemical humic acid salt, agricultural Aminoacids complex powder, biological growth substance and microbial bacterial agent, and wherein the mass ratio of biochemical humic acid or biochemical humic acid salt, agricultural Aminoacids complex powder, biological growth substance and microbial bacterial agent is 2-5:15-25:1-3:1-2.Wherein, biochemical humic acid is with industrial or agricultural debirs as raw material, is produced by special biochemical process, and rich in the product of fulvic acid, general commercially available multiple biochemical humic acid is all applicable to the present invention.Aminoacids complex powder is described in the routine of this area, and it is that effective amino-acid nutritional solution orients concentrated extract.In general, it is to form through hydrolysis, deacidification, desalination and spray drying with natural keratin hair for raw material, containing abundant Free amino acid, possibly together with elements such as organic and inorganic nitrogen, phosphorus, potassium that crop needs, general commercially available Aminoacids complex powder is all applicable to the present invention.
Preferably, described biological growth substance is one or more in photosynthetic pigments, or is Nafusaku, or is the mixture of one or more in photosynthetic pigments and Nafusaku；
Preferably, described biochemical humic acid salt is biochemical potassium humate；
Preferably, described agricultural Aminoacids complex powder is more than one in glutamic acid, histidine, aspartic acid, proline, valine, alanine, leucine, lysine, arginine, serine, tryptophan, methionine, phenylalanine, tyrosine, glycine and threonine；
Described photosynthetic pigments are selected from carotenoid, phycobilin or chlorophyll；
Preferably, one or more during described microbial bacterial agent is bacillus subtilis, bacillus megaterium and bacillusmusilaginosiengineering.
Microbial envelope agent of the present invention also comprises and also comprises anti hardening agent, stone powder, trace element salt and chemical fertilizer dedicated dye, and wherein the mass ratio of biochemical humic acid or biochemical humic acid salt, agricultural Aminoacids complex powder, biological growth substance, microbial bacterial agent, anti hardening agent, stone powder, trace element salt and chemical fertilizer dedicated dye is 2-5:15-25:1-3:1-2:8-20:45-60:10-25:0.5-1.5；
Preferably, one or more during described trace element salt is manganese sulfate monohydrate, zinc sulfate monohydrate, magnesium sulfate monohydrate, zinc sulphate heptahydrate and ferrous sulfate heptahydrate；
Preferably, described chemical fertilizer dedicated dye be reddish blue, grey, black in one or more combination.
The present invention also provides for a kind of micro organism composite fertilizer compositions containing microbial envelope agent, this composite fertilizer compositions comprises compound fertilizer granules, peplos oil and microbial envelope agent, compound fertilizer granules surface is respectively coated with peplos oil and microbial envelope agent, and wherein peplos oil, peplos agent are 2-10:1-5:800-1500 with the mass ratio of compound fertilizer granules；
Preferably, described peplos oil is one or more in vegetable oil, animal oil and mineral oil.
The invention provides the preparation method of above-mentioned composite fertilizer compositions, comprise the following steps:
1) anti hardening agent, biochemical humic acid or biochemical humic acid salt, stone powder, microbial bacterial agent, trace element salt, agricultural Aminoacids complex powder, biological growth substance and chemical fertilizer dedicated dye are mixed in proportion, be milled to 200-300 mesh, obtain peplos agent；
2) peplos oil is sprayed on compound fertilizer granules surface；
3) peplos agent is sprayed on peplos oil meter face.
Micro organism composite fertilizer compositions of the present invention is used for increasing yield of vegetables, shortens and gathers the cycle, reduces disease rate, and/or increases soil fertility.
Beneficial effects of the present invention:
1) agricultural Aminoacids complex powder can increase chlorophyll content of plant containing multiple difference in functionality aminoacid, such as glycine, improve the activity of enzyme, promote the infiltration of carbon dioxide, make photosynthesis more vigorous.Biological growth substance, as Nafusaku can quickly promote cell division and expansion, induced synthesis adventitious root.Agricultural Aminoacids complex powder is combined with biological growth substance, it is possible to provides enough nutrition to crop, reaches crop yield, the purpose of cycle time of gathering simultaneously.
2) biochemical humic acid is after special biochemical process produces, rich in the fulvic acid that activity is stronger, additionally contain a number of aminoacid and other physiologically active components multiple, it is possible to realize fertilizer nutrient controlled release, soil micro-ecosystem adjusting function, and improve crop disease-resistant rate.After microbial bacterial agent is manured into soil, breeding rapidly is become dominant bacteria, control nutrition and other resources of rhizosphere, cause pathogen to lose vivosphere and condition to a great extent, form the barrier stoping pathogenic bacteria invasion and attack together.The present invention adds biochemical humic acid and microbial bacterial agent simultaneously, it is possible to be effectively improved the disease-resistant rate of crop.
3) in peplos agent, with the addition of anti hardening agent, the problem that hardens of fertilizer can be alleviated.
4) product peplos is effective, and thin layer is obvious, and easily dispersing and dissolving, and microorganism fungus kind survival rate is high.
Detailed description of the invention
Below the detailed description of the invention of the present invention is described further:
Embodiment 1
Micro organism composite fertilizer compositions is made up of the composition of following mass parts: 3 parts of biochemical humic acid potassium, agricultural Aminoacids complex powder 15 parts, Nafusaku 1 part, carotenoid 1 part, bacillus subtilis 2 parts, manganese sulfate monohydrate 5 parts, zinc sulfate monohydrate 8 parts, anti hardening agent 20 parts, stone powder 45 parts, reddish blue 1 part, Petiolus Trachycarpi oil 160 parts and 28000 parts of microbe granular fertilizer.
By biochemical humic acid potassium, agricultural Aminoacids complex powder, Nafusaku, carotenoid, bacillus subtilis, manganese sulfate monohydrate, zinc sulfate monohydrate, anti hardening agent, stone powder, reddish blue mix in proportion, be milled to 200-300 mesh；Petiolus Trachycarpi oil is sprayed on fertilizer surface；Peplos agent is sprayed on fertile particle surface again, i.e. obtains micro organism composite fertilizer compositions.
Embodiment 2
Microbial envelope agent is made up of the composition of following mass parts: 3 parts of biochemical humic acid potassium, agricultural Aminoacids complex powder 15 parts, Nafusaku 1 part, chlorophyll 1 part, bacillus subtilis 1.5 parts, anti hardening agent 20 parts, stone powder 45 parts, Petiolus Trachycarpi oil 160 parts and 28000 parts of microbe granular fertilizer.
Biochemical humic acid potassium, agricultural Aminoacids complex powder, Nafusaku, chlorophyll, bacillus subtilis, anti hardening agent and stone powder are mixed in proportion, is milled to 200-300 mesh, obtain peplos agent；Petiolus Trachycarpi oil is sprayed on fertilizer surface；Peplos agent is sprayed on fertile particle surface again, i.e. obtains micro organism composite fertilizer compositions.
Embodiment 3
Micro organism composite fertilizer compositions composition is as follows, and microbial envelope agent is made up of the composition of following mass parts: agricultural Aminoacids complex powder 15 parts, Nafusaku 1 part, carotenoid 1 part, manganese sulfate monohydrate 5 parts, zinc sulfate monohydrate 8 parts, anti hardening agent 20 parts, stone powder 45 parts, reddish blue 0.5 part, Petiolus Trachycarpi oil 160 parts and 28000 parts of microbe granular fertilizer.
By agricultural Aminoacids complex powder, Nafusaku, carotenoid, manganese sulfate monohydrate, zinc sulfate monohydrate, anti hardening agent, stone powder, reddish blue mix in proportion, be milled to 200-300 mesh, obtain peplos agent；Petiolus Trachycarpi oil is sprayed on fertilizer surface；Peplos agent is sprayed on fertile particle surface again, i.e. obtains micro organism composite fertilizer compositions.
Embodiment 4
Micro organism composite fertilizer compositions composition is as follows: 3 parts of biochemical humic acid potassium, bacillus subtilis 1.5 parts, manganese sulfate monohydrate 5 parts, zinc sulfate monohydrate 8 parts, anti hardening agent 20 parts, stone powder 45 parts, reddish blue 0.5 part, Petiolus Trachycarpi oil 160 parts and 28000 parts of microbe granular fertilizer.
By biochemical humic acid potassium, bacillus subtilis, manganese sulfate monohydrate, zinc sulfate monohydrate, anti hardening agent, stone powder, reddish blue mix in proportion, be milled to 200-300 mesh, obtain peplos agent；Petiolus Trachycarpi oil is sprayed on fertilizer surface；Peplos agent is sprayed on fertile particle surface again, i.e. obtains micro organism composite fertilizer compositions.
Embodiment 5
Micro organism composite fertilizer compositions is made up of the composition of following mass parts: 3 parts of biochemical humic acid potassium, agricultural Aminoacids complex powder 15 parts, Nafusaku 1 part, phycobilin 1 part, bacillus subtilis 1.5 parts, manganese sulfate monohydrate 5 parts, zinc sulfate monohydrate 8 parts, reddish blue 0.5 part, Petiolus Trachycarpi oil 160 parts and 28000 parts of microbe granular fertilizer.
By biochemical humic acid potassium, agricultural Aminoacids complex powder, Nafusaku, phycobilin, bacillus subtilis, manganese sulfate monohydrate, zinc sulfate monohydrate, reddish blue mix in proportion, be milled to 200-300 mesh, obtain peplos agent；Petiolus Trachycarpi oil is sprayed on fertilizer surface；Peplos agent is sprayed on fertile particle surface again, i.e. obtains micro organism composite fertilizer compositions.
Embodiment pork Caulis et Folium Brassicae junceae applying fertilizer effect and each soil root system test experience:
Choosing 5 mu of pork Caulis et Folium Brassicae junceae land for growing field crops, average mark 5 groups, often group 1 mu, be set to embodiment 1-5 group, often group is done 5 times and is repeated experiment, each land used 0.2 mu.Embodiment of the present invention 1-5 gained compositions Han micro organism composite fertilizer is used in embodiment 1-5 group land for growing field crops respectively.
Fertilizing method: in a week after planting, uniformly impose on crop root with micro organism composite fertilizer compositions.Respectively group total nitrogen content of soil and living bacteria count amount, the results are shown in Table 1.After 1 month, add up each group of soil compaction situation.Respectively group pork Caulis et Folium Brassicae junceae yield, gather cycle and disease rate, the results are shown in Table 2.
Table 1 embodiment total nitrogen content of soil and living bacteria count amount compare
Table 2 embodiment pork Caulis et Folium Brassicae junceae yield, gather the cycle and disease rate compares
Shown by data above, use agricultural Aminoacids complex powder and the composite fertilizer compositions of biological growth substance being not added with ratio of the present invention in peplos agent, causing soil nitrogenous amount to reduce 35.7%, pork Caulis et Folium Brassicae junceae per mu yield reduces 19.5%, the cycle stretch-out 7 days of gathering；In planting process, find that pork Caulis et Folium Brassicae junceae plant is higher, and blade is loose.Using biochemical humic acid salt and the composite fertilizer compositions of microbial bacterial agent being not added with ratio of the present invention in peplos agent, cause soil living bacteria count amount to reduce 46.7%, the disease rate of pork Caulis et Folium Brassicae junceae adds 4.6%.Additionally, use and peplos agent is not added with the anti hardening agent of ratio of the present invention and the composite fertilizer compositions of stone powder, or the composite fertilizer compositions being not added with agricultural Aminoacids complex powder and biological growth substance in peplos agent all can cause soil to occur hardening, wherein anti hardening agent and stone powder without ratio of the present invention can cause soil seriously to harden.
In sum, the composite fertilizer compositions containing microbial envelope agent of the present invention can effectively facilitate crop yield, shorten cycle of gathering, reduction disease rate, the soil nitrogenous amount that improves, the raising useful viable count of soil, moreover it is possible to effectively alleviate the phenomenon that hardens.Experiment also can reach the effect above it is also shown that only add the biochemical humic acid salt of ratio of the present invention, agricultural Aminoacids complex powder, biological growth substance, microbial bacterial agent, anti hardening agent and stone powder.
The announcement of book and teaching according to the above description, above-mentioned embodiment can also be changed and revise by those skilled in the art in the invention.Therefore, the invention is not limited in detailed description of the invention disclosed and described above, some modifications and changes of invention be should also be as falling in the scope of the claims of the present invention.Although additionally, employ some specific terms in this specification, but these terms are merely for convenience of description, the present invention is not constituted any restriction.
Claims (6)
1. the microbial envelope agent being used for preparing microbial manure, it is characterised in that this microorganism bag
Membrane comprises biochemical humic acid or biochemical humic acid salt, agricultural Aminoacids complex powder, biological growth substance and micro-life
Thing microbial inoculum, wherein biochemical humic acid or biochemical humic acid salt, agricultural Aminoacids complex powder, biological growth substance and
The mass ratio of microbial bacterial agent is 2-5:15-25:1-3:1-2；
Described biological growth substance is one or more in photosynthetic pigments, or is Nafusaku, or is photosynthetic color
One or more in element and the mixture of Nafusaku.
Microbial envelope agent the most according to claim 1, it is characterised in that described biochemical humic acid salt
For biochemical potassium humate；
Described agricultural Aminoacids complex powder be glutamic acid, histidine, aspartic acid, proline, valine,
Alanine, leucine, lysine, arginine, serine, tryptophan, methionine, phenylalanine, cheese
More than one in propylhomoserin, glycine and threonine；
Described photosynthetic pigments are selected from carotenoid, phycobilin or chlorophyll；
Described microbial bacterial agent is in bacillus subtilis, bacillus megaterium and bacillusmusilaginosiengineering
Plant or multiple.
Microbial envelope agent the most according to claim 1 or claim 2, it is characterised in that this microbial envelope
Agent also comprises anti-compaction powder, stone powder, trace element salt and chemical fertilizer dedicated dye, wherein biochemical humic acid or life
Change humate, agricultural Aminoacids complex powder, biological growth substance, microbial bacterial agent, anti hardening agent, stone powder,
The mass ratio of trace element salt and chemical fertilizer dedicated dye is 2-5:15-25:1-3:1-2:8-20:45-60:
10-25:0.5-1.5；
Described trace element salt be manganese sulfate monohydrate, zinc sulfate monohydrate, magnesium sulfate monohydrate, zinc sulphate heptahydrate and
One or more in ferrous sulfate heptahydrate；
Described chemical fertilizer dedicated dye be reddish blue, grey, black in one or more combination.
4. include the micro organism composite fertilizer compositions of microbial envelope agent described in any one of claim 1-3,
It is characterized in that, this composite fertilizer compositions comprises compound fertilizer granules, peplos oil and microbial envelope agent, compound
Fertile particle surface is respectively coated with peplos oil and microbial envelope agent, wherein peplos oil, peplos agent and compound fertilizer
The mass ratio of grain is 2-10:1-5:800-1500；
Described peplos oil is one or more in vegetable oil, animal oil and mineral oil.
The preparation method of composite fertilizer compositions the most according to claim 4, it is characterised in that this is prepared
Method comprises the following steps:
1) by anti hardening agent, biochemical humic acid or biochemical humic acid salt, stone powder, microbial bacterial agent, trace
Element salt, agricultural Aminoacids complex powder, biological growth substance and chemical fertilizer dedicated dye mix in proportion, mill
It is broken to 200-300 mesh, obtains peplos agent；
2) peplos oil is sprayed on compound fertilizer granules surface；
3) peplos agent is sprayed on peplos oil meter face.
The purposes of micro organism composite fertilizer compositions the most according to claim 4, it is characterised in that described
Micro organism composite fertilizer compositions is used for increasing yield of vegetables, shortens and gathers the cycle, reduces disease rate, and/or carries
High soil fertility.
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| CN107021837A (en) * | 2017-05-23 | 2017-08-08 | 深圳市芭田生态工程股份有限公司 | Loose earth compound fertilizer of one kind soil living and preparation method thereof |
| CN107032914A (en) * | 2016-09-29 | 2017-08-11 | 深圳市芭田生态工程股份有限公司 | Biological coat fertilizer of a kind of high-activity humic acid and preparation method thereof |
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