CN106518463A - Chinese yam coated fertilizer and preparation method thereof - Google Patents
Chinese yam coated fertilizer and preparation method thereof Download PDFInfo
- Publication number
- CN106518463A CN106518463A CN201611117181.1A CN201611117181A CN106518463A CN 106518463 A CN106518463 A CN 106518463A CN 201611117181 A CN201611117181 A CN 201611117181A CN 106518463 A CN106518463 A CN 106518463A
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- Prior art keywords
- fertilizer
- rhizomadioscoreae
- peplos
- source
- selenium
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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
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C1/00—Ammonium nitrate fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
-
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a Chinese yam coated fertilizer and a preparation method thereof. The Chinese yam coated fertilizer includes a fertilizer core and a coating film coating the surface of the fertilizer core; the fertilizer core includes, by weight, 0.01%-0.10% of a selenium compound, 40%-80% of a calcium source, 10%-15% of an iron source, 10%-15% of a zinc source and 0.5%-1% of amino acids, the coating film includes coating oil and microorganisms, the weight ration of the coating oil to the microorganisms in the coating film is 1-2:1-5, and the microorganisms are selected from at least one of Bacillus licheniformis, Paecilomyces lilacinus and bacillus amyloliquefaciens. The Chinese yam coated fertilizer is good in fertilizer effect.
Description
Technical field
The present invention relates to a kind of Rhizomadioscoreae coat fertilizer and preparation method thereof.
Background technology
Selenium as a kind of trace element, current prevailing paradigm heat is, in diet, appropriate selenium is kept fit for human body
With important function.First, selenium plays irreplaceable effect in terms of the oxidation resistance of human body is improved, in addition, selenium also has
Have anticancer, hepatoprotective, with reference to heavy metal and the preventing and treating important physiological function such as cardiovascular and cerebrovascular disease.Selenium is used as important micro unit
Element, the growth to plant also play an important role, while plant is by conversion, the inorganic selenium that will can be difficult to be absorbed by the body
It is converted into the organic selenium being easily absorbed by the body.
Selenium element is supplemented in the tuber initiation stage of Rhizomadioscoreae, selenium element can promote the suction of trace element in calcium, ferrum, zinc etc.
Receive, improve the biological effectiveness of the yield and selenium of Rhizomadioscoreae, make selenium element realize effectively converting in plant body, finally in Rhizomadioscoreae shape
Into monomethyl selenium compound (such as methyl cysteine), can be absorbed by human body or animal.
Existing selenium-enriched fertilizer raw material mostly is sodium selenite, is easily adsorbed by mineral particle agent and organic matter, and which is biological
Utilizability is low, and under anaerobism soil environment, selenate and selenite can be reduced into selenium simple substance, selenium simple substance it is water insoluble and
Can not be utilized by biology.
The content of the invention
Based on this, it is necessary to provide higher Rhizomadioscoreae coat fertilizer of a kind of fertilizer efficiency and preparation method thereof.
A kind of Rhizomadioscoreae coat fertilizer, including fertilizer core and it is coated on the peplos of the fertilizer wicking surface；The fertilizer core is by weight
Amount number meter, including 0.1～1 part of selenium-containing compound, 40～80 parts of calcium source, 10～15 parts of source of iron, 10～15 parts of zinc source and amino
0.5～1 part of acid；The peplos include peplos oil and microorganism, and in the peplos, peplos oil and the weight ratio of microorganism are 1～2:
1～5, at least one of the microorganism in Bacillus licheniformis, Paecilomyces lilacinus and bacillus amyloliquefaciens.
Wherein in one embodiment, the microorganism is Bacillus licheniformis, Paecilomyces lilacinus and solution starch spore
The mixture of bacillus, effective viable bacteria ratio of the Bacillus licheniformis, Paecilomyces lilacinus and bacillus amyloliquefaciens is 1～
85:1～200:10～100.
Wherein in one embodiment, the selenium-containing compound is in fulvic acid selenium, humic acid selenium and seleno-amino acids
At least one.
Wherein in one embodiment, the seleno-amino acids are different bright selected from selenomethionine, selenocysteine, seleno
At least one in propylhomoserin.
Wherein in one embodiment, the calcium source in calcium ammonium nitrate, calcium magnesium phosphate and Calcium Carbonate calcium at least
Kind.
Wherein in one embodiment, at least one of the source of iron in ferrous sulfate and EDTA- ferrum；And/or, institute
State at least one of the zinc source in zinc sulfate, zinc nitrate, the rotten acid of zinc and EDTA- zinc.
Wherein in one embodiment, at least one of the aminoacid in polyglutamic acid and poly-aspartate.
Wherein in one embodiment, the peplos grease separation from Petiolus Trachycarpi oil, oleum lini, Oleum Verniciae fordii and dehydrated castor oil extremely
Few one kind.
Wherein in one embodiment, water soluble organic substance of the fertilizer core also including 1 part～7 parts.
The preparation method of above-mentioned Rhizomadioscoreae coat fertilizer, comprises the following steps：
By 0.1～1 part of selenium-containing compound, 40～80 parts of calcium source, 10～15 parts of source of iron, 10～15 parts of zinc source, aminoacid 0.5
Pelletize after～1 part of mixing obtains fertilizer core；
The surface that the fertilizer core is sprayed on after peplos oil and microorganism mixing is formed into peplos and obtains the Rhizomadioscoreae
Coat fertilizer.
Above-mentioned Rhizomadioscoreae coat fertilizer, fertilizer core include the element such as selenium-containing compound and calcium, ferrum, zinc, to Rhizomadioscoreae tuber initiation stage
Trace element and selenium element in necessary to supplement plant, selenium can promote absorption of the Rhizomadioscoreae to elements such as calcium, ferrum, zinc, so as to carry
The utilization rate of high fertilizer, improves fertilizer efficiency, especially can significantly improve beneficial to human body ferrum in Rhizomadioscoreae, calcium, zinc, selemium nutrition
Constituent content, improves the biological effectiveness of crop yield and selenium, makes selenium element realize effectively converting in plant body, is finally planting
Monomethyl selenium compound (such as methyl cysteine) is formed in object, can be absorbed by human body or animal；Peplos include peplos oil
And microorganism, at least one of the microorganism in Bacillus licheniformis, Paecilomyces lilacinus and bacillus amyloliquefaciens, peplos
In contain microorganism, inhibitory action is played to pathogenic bacterium in soil after fertilising, Rhizomadioscoreae can be effectively improved and pest and disease damage is supported
Anti- ability.
Specific embodiment
Rhizomadioscoreae coat fertilizer and preparation method thereof is described in further detail mainly in combination with specific embodiment below.
The Rhizomadioscoreae coat fertilizer of one embodiment, including fertilizer core and it is coated on the peplos of fertilizer wicking surface；Fertilizer core is by weight
Amount number meter, including 0.1～1 part of selenium-containing compound, 40～80 parts of calcium source, 10～15 parts of source of iron, 10～15 parts of zinc source, aminoacid
0.5～1 part；Peplos include peplos oil and microorganism, and in peplos, peplos oil and the weight ratio of microorganism are 1～2:1～5, micro- life
At least one of the thing in Bacillus licheniformis, Paecilomyces lilacinus and bacillus amyloliquefaciens.
Wherein in one embodiment, microorganism is Bacillus licheniformis, Paecilomyces lilacinus and bacillus amyloliquefaciens
Mixture, effective viable bacteria ratio of Bacillus licheniformis, Paecilomyces lilacinus and bacillus amyloliquefaciens is 1～85:1～200:
10～100.Three kinds of microorganisms that the present invention is provided are complemented each other, and three kinds of strains can effectively suppress pathogen growth, while pale purple plan
Penicillium secretion several functions enzyme can promote itself and Bacillus licheniformis, the breeding of bacillus amyloliquefaciens, lichens spore
Bacillus can also decompose poisonous and harmful substance, improve microbe survival environment；Proportioning in the present invention of three kinds of strain living bacteria counts
Under, in the biological organic fertilizer for preparing, the living bacteria count of three kinds of strains is higher, suppresses pathogenic bacteria and strengthens the disease resistance of crop
Effect is more preferable.
Wherein in one embodiment, peplos grease separation from Petiolus Trachycarpi oil, oleum lini, Oleum Verniciae fordii and dehydrated castor oil at least one
Kind.
Wherein in one embodiment, peplos are 1 with the weight ratio of fertilizer core：75～1250.
Wherein in one embodiment, selenium-containing compound in fulvic acid selenium, humic acid selenium and the seleno-amino acids extremely
Few one kind.Further, seleno-amino acids in selenomethionine, selenocysteine, seleno isoleucine at least one
Kind.The biological effectiveness of seleno-amino acids is high, can be converted into the absorbable nutrient substance of human body.
Wherein in one embodiment, at least one of the calcium source in calcium ammonium nitrate, calcium magnesium phosphate and Calcium Carbonate.
Wherein in one embodiment, at least one of the source of iron in ferrous sulfate and EDTA- ferrum.
Wherein in one embodiment, at least one of the zinc source in zinc sulfate, zinc nitrate, the rotten acid of zinc and EDTA- zinc.
Wherein in one embodiment, at least one of the aminoacid in polyglutamic acid and poly-aspartate.
Wherein in one embodiment, water soluble organic substance of the fertilizer core also including 1 part～7 parts.Water soluble organic substance is selected
At least one from molasses alcohol fermentation waste liquid, yeast fermented waste fluid and amino acid fermentation waste liquid.Molasses alcohol fermentation waste liquid
Middle solid content is 30%～60%, and in yeast fermented waste fluid, solid content is 30%～60%, solid content in amino acid fermentation waste liquid
For 30%～60%.Further, water soluble organic substance is nanoscale water soluble organic substance.
Above-mentioned Rhizomadioscoreae coat fertilizer, by fertilizer core be coated on peplos oil and microorganism group into peplos in, can be in Rhizomadioscoreae bag
After film fertilizer is manured into soil, nutritional labeling is slowly discharged, extend fertilizer efficiency；Peplos include peplos oil and microorganism, and microorganism is selected from
At least one in Bacillus licheniformis, Paecilomyces lilacinus and bacillus amyloliquefaciens, contains microorganism, after fertilising in peplos
Inhibitory action is played to pathogenic bacterium in soil, resistivity of the Rhizomadioscoreae to pest and disease damage can be effectively improved；Fertilizer core includes containing
The element such as selenium compound and calcium, ferrum, zinc, each element reasonable mixture ratio to Rhizomadioscoreae tuber initiation stage supplement plant necessary in micro unit
Element and selenium element, selenium can promote absorption of the Rhizomadioscoreae to elements such as calcium, ferrum, zinc, so as to improve the utilization rate of fertilizer, improve fertilizer
Effect, especially can significantly improve beneficial to human body ferrum in Rhizomadioscoreae, calcium, zinc, selemium nutrition constituent content, improve crop yield
With the biological effectiveness of selenium, make selenium element realize effectively converting in plant body, finally monomethyl selenizing is formed in plant body
Compound (such as methyl cysteine), can be absorbed by human body or animal.
The preparation method of above-mentioned Rhizomadioscoreae coat fertilizer, comprises the following steps：
Step S110,0.1～1 part of selenium-containing compound, 40～80 parts of calcium source, 10～15 parts of source of iron, 10～15 parts of zinc source, ammonia
Pelletize after 0.5～1 part of mixing of base acid obtains fertilizer core.
Water soluble organic substance wherein in one embodiment, also including fertilizer core also including 1 part～7 parts.Water solublity has
Machine thing selected from molasses alcohol fermentation waste liquid, yeast fermented waste fluid, amino acid fermentation waste liquid and at least one.During preparation, will
Water soluble organic substance is mixed together pelletize with other components.
Step S120, weight ratio are 1～2:The table of the fertilizer core is sprayed on after 1～5 peplos oil and microorganism mixing
Face forms peplos and obtains the Rhizomadioscoreae coat fertilizer.
Wherein in one embodiment, peplos are 1 with the weight ratio of fertilizer core：75～1250.
The preparation method of above-mentioned Rhizomadioscoreae coat fertilizer is simple to operate.
It is below specific embodiment part：
Number in following examples is mass fraction.
Embodiment 1
The Rhizomadioscoreae coat fertilizer A of embodiment 1 includes fertilizer core and is coated on the peplos of fertilizer wicking surface, and fertilizer core includes 1 part
Selenomethionine, 70 parts of calcium ammonium nitrate, 15 parts of ferrous sulfate, the poly-aspartate of 10 parts of zinc sulfate and 1 part, 1 part
Molasses alcohol fermentation waste liquid (nanoscale water-soluble organic compound, solid content are 50%) pelletize after mixing；2 parts of Petiolus Trachycarpi oil and 4 parts
Microorganism mixing after be sprayed on the surface of fertilizer core, obtain Rhizomadioscoreae coat fertilizer A.Microorganism is Bacillus licheniformis, pale purple plan
The mixture of penicillium and bacillus amyloliquefaciens, bacillus amyloliquefaciens, Paecilomyces lilacinus and bacillus amyloliquefaciens have
Effect viable count ratio is 1:1:10, bacillus amyloliquefaciens, Paecilomyces lilacinus and bacillus amyloliquefaciens are not less than 1,000,000,000/
Gram.
Embodiment 2
The Rhizomadioscoreae coat fertilizer B of embodiment 2 includes fertilizer core and is coated on the peplos of fertilizer wicking surface, and fertilizer core includes 0.5
Part humic acid selenium, 80 parts of calcium magnesium phosphate, 10 parts of EDTA- ferrum, the polyglutamic acid of 15 parts of EDTA- zinc and 1 part, 7 parts
(nanoscale water-soluble organic compound, solid content are 50%) pelletize after mixing to yeast fermented waste fluid；Peplos include 2 parts of Petiolus Trachycarpi oil and 3
The surface of fertilizer core is sprayed on after the microorganism mixing of part, Rhizomadioscoreae coat fertilizer A is obtained.Microorganism is Bacillus licheniformis, pale purple
The mixture of paecilomycerol and bacillus amyloliquefaciens, Bacillus licheniformis, Paecilomyces lilacinus and bacillus amyloliquefaciens have
Effect viable count ratio is 85:200:100, bacillus amyloliquefaciens, Paecilomyces lilacinus and bacillus amyloliquefaciens are not less than 10
Hundred million/gram.
Embodiment 3
The fertilizer C of embodiment 3 is roughly the same with embodiment 1, and its difference is that calcium ammonium nitrate is 5 parts in embodiment 3.
Embodiment 4
The fertilizer D of embodiment 4 is roughly the same with embodiment 1, and its difference is that ferrous sulfate is 1 part in embodiment 4.
Embodiment 5
The fertilizer E of embodiment 5 is roughly the same with embodiment 1, and its difference is that sulphuric acid zinc-iron is 1 part in embodiment 3.
Embodiment 6
The fertilizer E of embodiment 6 is roughly the same with embodiment 1, and its difference is that selenomethionine is 0.01 in embodiment 3
Part.
7 test groups are set：Test group 1 applies Rhizomadioscoreae coat fertilizer A；Test group 2 applies Rhizomadioscoreae coat fertilizer B；Test group 3～
6 apply fertilizer B, fertilizer C, fertilizer D, fertilizer E successively；Test group 7 is blank control group, is not applied fertilizer.Per group arrange 3 areas be
30m2Experimental field.
Above-mentioned test group 1～6 is applied fertilizer with the consumption of every mu of 40kg as topdressing in Rhizomadioscoreae tuber expansion period respectively, other pipes
Reason is identical with test group 7.
Rhizomadioscoreae was harvested in 60 days after fertilising.The yield of measure Rhizomadioscoreae, Se content, calcium content, Zn content, ferrum after results
Content, wherein calcium, ferrum, zinc-content determination are carried out using dry ashing-atomic absorption method, Determination of Selenium hydride generation atomic fluorescence light
Spectrometry is determined, and concrete data are shown in Table 1.
Table 1
Note：Data in table 1 are 3 averages experimental field of per group of setting.
As it can be seen from table 1 the 1st group and the 2nd group of Rhizomadioscoreae yield is higher, Se content, calcium content, Zn content, iron content
It is higher, 97.36% and 85.00% has been respectively increased compared with not applying fertilizer.And the 3rd group is reducing calcium source content, the 4th group of reduction
Source of iron content, the 5th group of reduction zinc source addition, the 6th group of reduction selenium-containing compound content, the yield of Rhizomadioscoreae all decrease, and
Content of the element in Rhizomadioscoreae body declines substantially, and has also affected between each element, illustrates that Rhizomadioscoreae coat fertilizer can be improved
Its yield simultaneously increases in-vivo element content.
Each technical characteristic of embodiment described above arbitrarily can be combined, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore can not be construed as limiting the scope of the patent.It should be pointed out that for one of ordinary skill in the art comes
Say, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of Rhizomadioscoreae coat fertilizer, it is characterised in that including fertilizer core and be coated on the peplos of the fertilizer wicking surface；The fertilizer
Material core is counted by weight, including 0.1～1 part of selenium-containing compound, 40～80 parts of calcium source, 10～15 parts of source of iron, zinc source 10～15
0.5～1 part of part and aminoacid；The peplos include peplos oil and microorganism, the weight of peplos oil and microorganism in the peplos
Than for 1～2:1～5, the microorganism in Bacillus licheniformis, Paecilomyces lilacinus and the bacillus amyloliquefaciens at least
It is a kind of.
2. Rhizomadioscoreae coat fertilizer according to claim 1, it is characterised in that the microorganism is Bacillus licheniformis, pale purple
The mixture of paecilomycerol and bacillus amyloliquefaciens, the Bacillus licheniformis, Paecilomyces lilacinus and solution starch spore bar
Effective viable bacteria ratio of bacterium is 1～85:1～200:10～100.
3. Rhizomadioscoreae coat fertilizer according to claim 1, it is characterised in that the selenium-containing compound is selected from fulvic acid selenium, corruption
Grow sour selenium and at least one in seleno-amino acids.
4. Rhizomadioscoreae coat fertilizer according to claim 3, it is characterised in that the seleno-amino acids selected from selenomethionine,
At least one in selenocysteine, seleno isoleucine.
5. Rhizomadioscoreae coat fertilizer according to claim 1, it is characterised in that the calcium source is selected from calcium ammonium nitrate, calcium magnesium phosphate
And at least one in Calcium Carbonate.
6. Rhizomadioscoreae coat fertilizer according to claim 1, it is characterised in that the source of iron is selected from ferrous sulfate and EDTA- ferrum
In at least one；And/or, at least one of the zinc source in zinc sulfate, zinc nitrate, the rotten acid of zinc and EDTA- zinc.
7. Rhizomadioscoreae coat fertilizer according to claim 1, it is characterised in that the aminoacid is selected from polyglutamic acid and poly- Radix Asparagi
At least one in propylhomoserin.
8. Rhizomadioscoreae coat fertilizer according to claim 1, it is characterised in that the peplos grease separation is from Petiolus Trachycarpi oil, oleum lini, paulownia
At least one in oil and dehydrated castor oil.
9. Rhizomadioscoreae coat fertilizer according to claim 1, it is characterised in that the fertilizer core is water-soluble also including 1 part～7 parts
Property Organic substance.
10. the preparation method of the Rhizomadioscoreae coat fertilizer as described in any one of claim 1～9, it is characterised in that including following step
Suddenly：
By 0.1～1 part of selenium-containing compound, 40～80 parts of calcium source, 10～15 parts of source of iron, 10～15 parts of zinc source, aminoacid 0.5～1
Pelletize after part mixing obtains fertilizer core；
The surface that the fertilizer core is sprayed on after peplos oil and microorganism mixing is formed into peplos and obtains the Rhizomadioscoreae peplos
Fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611117181.1A CN106518463A (en) | 2016-12-07 | 2016-12-07 | Chinese yam coated fertilizer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611117181.1A CN106518463A (en) | 2016-12-07 | 2016-12-07 | Chinese yam coated fertilizer and preparation method thereof |
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| CN106518463A true CN106518463A (en) | 2017-03-22 |
Family
ID=58341824
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611117181.1A Pending CN106518463A (en) | 2016-12-07 | 2016-12-07 | Chinese yam coated fertilizer and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386842A (en) * | 2018-04-20 | 2019-10-29 | 联发生物科技股份有限公司 | Fertilizer granules and preparation method thereof |
| WO2020121164A1 (en) | 2018-12-11 | 2020-06-18 | Sabic Global Technologies B.V. | Organic chelated zinc coated fertilizer for better crops and soil health |
| WO2021198914A1 (en) | 2020-03-31 | 2021-10-07 | Sabic Global Technologies B.V. | Zinc coated urea fertilizer |
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| CN104478573A (en) * | 2014-11-30 | 2015-04-01 | 杨秋慧 | Efficient fertilizer for planting Chinese yams |
| CN105272610A (en) * | 2015-10-26 | 2016-01-27 | 富川富兴果蔬有限责任公司 | Controlled-release fertilizer for Chinese yams and preparation method of fertilizer |
| CN105693391A (en) * | 2016-02-05 | 2016-06-22 | 深圳市芭田生态工程股份有限公司 | Functional biological coated fertilizer containing organic carbon |
| CN106083362A (en) * | 2016-06-20 | 2016-11-09 | 深圳市芭田生态工程股份有限公司 | A kind of organic carbon compound fertilizer containing microbial envelope agent |
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| CN104478573A (en) * | 2014-11-30 | 2015-04-01 | 杨秋慧 | Efficient fertilizer for planting Chinese yams |
| CN105272610A (en) * | 2015-10-26 | 2016-01-27 | 富川富兴果蔬有限责任公司 | Controlled-release fertilizer for Chinese yams and preparation method of fertilizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110386842A (en) * | 2018-04-20 | 2019-10-29 | 联发生物科技股份有限公司 | Fertilizer granules and preparation method thereof |
| WO2020121164A1 (en) | 2018-12-11 | 2020-06-18 | Sabic Global Technologies B.V. | Organic chelated zinc coated fertilizer for better crops and soil health |
| WO2021198914A1 (en) | 2020-03-31 | 2021-10-07 | Sabic Global Technologies B.V. | Zinc coated urea fertilizer |
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