CN102992862A - Special slow-release fertilizer taking biomass granular carbon as matrix for ginger and preparation method thereof - Google Patents
Special slow-release fertilizer taking biomass granular carbon as matrix for ginger and preparation method thereof Download PDFInfo
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- CN102992862A CN102992862A CN2012102942268A CN201210294226A CN102992862A CN 102992862 A CN102992862 A CN 102992862A CN 2012102942268 A CN2012102942268 A CN 2012102942268A CN 201210294226 A CN201210294226 A CN 201210294226A CN 102992862 A CN102992862 A CN 102992862A
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Abstract
The invention discloses a special slow-release fertilizer taking biomass granular carbon as a matrix for ginger and a preparation method thereof. Granular carbon prepared from agricultural abandoned biomass such as corncobs, peanut shells, rice husks and edible mushroom matrixes, taken as a matrix material, is compounded with nitrogen, phosphorus, potassium and other nutrient elements essential to the growth and development of the ginger by utilizing the microporous character and strong adsorption capacity of the granular carbon, so that the special slow-release fertilizer taking the biomass granular carbon as the matrix for the ginger is prepared. According to the invention, the biomass granular carbon is black biomass granular carbon particles formed after incomplete combustion of the agricultural abandoned biomass under a hypoxic condition, has various properties similar to those of soil humus, is very strong in capacity of adsorbing and maintaining nutrients and moisture, and furthermore, and has an effect of stimulating the growth of crops and a good slow-release performance for the nitrogen, phosphorus and potassium; the slow-release fertilizer prepared in such a way can effectively meet the requirements of the ginger for nutrients in the whole growth period after being applied once; and in addition, the special slow-release fertilizer has the characteristics of enhancing the soil fertility, improving the soil structure, being efficient and environmentally-friendly, and the like, thereby being beneficial to large-scale popularization and application in ginger production.
Description
Technical field
The invention belongs to the agricultural fertilizer production technical field, particularly a kind of ginger take the biological particles charcoal as matrix is slow-release fertilizer dedicated and preparation method thereof.
Background technology
In ginger was produced, the rational application of fertilizer was to guarantee the important measures of yield and quality.The rhizome of ginger is less at Seedling Stage absorbed nitrogen, phosphorus, potassium, and vigorous period slowly increases the absorbed dose of phosphorus, and the demand surge to nitrogen, potassium especially needs the potassium amount maximum in the early stage of vigorous period, and nitrogenous fertilizer takes second place; Inhale nitrogen more than potassium in the intermediary and later stages of vigorous period, Absorption Potassium is more than phosphorus.But a lot of peasant households topdress not according to regulation of fertilizer requirement in production management, and fertilizer application period is too concentrated, and front heavy rear light, its result causes Jiang Miao excessive growth in early stage, a large amount of nutrient loss wastes, later stage fertilizer deficiency, the withered and yellow early ageing of plant, yield reducation; The then inclined to one side nitrogen fertilizer application and the chemical nitrogen fertilizer consumption that have are too much, do not note and the cooperating of the various elements such as phosphorus, potassium, not only cause loss and the waste of nitrogen nutrient, and cause that plant excessive growth, disease resistance weaken, ginger piece quality descends, and has a strong impact on the economic benefit of plantation.
The method one that addresses these problems in fertilising at present is the consumption that increases fertilizer, the 2nd, and chemical fertilizer application is taked on a small quantity repeatedly.Along with the continuous expansion of ginger cultivation area, fertilizer can not be satisfied the demand, and peasant's labour intensity and recruitment cost repeatedly used and increased to chemical fertilizer.Adopt the long-acting or slow special release fertilizer single fertilization of ginger more and more to be subject to peasant's welcome.Present slow release fertilizer both domestic and external generally all is to reach the purpose that prolongs fertilizer efficiency by physical methods such as coating, parcel, packing, coatings, such as the coated fertilizer of bag Thio Urea, polymer coated fertilizer, fertilizer bag fertilizer, coated fertilizer and with Quick-dissolving fertilizer and the mixing formed Wrapped fertilizer of rubber latex etc.The slow controlled-release technology that also has employing physics and biochemical method to combine is produced slow release fertilizer.The general cost of these fertilizer is higher, and seldom possesses hole and adsorptive power, more without increasing soil fertility, improving the characteristics such as Soil structure.
On the other hand, at present China has become one of country of agriculture waste biomass generation maximum in the world, it is reported, the gross annual output of all kinds of agricultural crop straws of China amount of giving birth to reaches more than 700,000,000 tons, wherein straw is 2.3 hundred million tons, 2.7 hundred million tons of maize straws, 100,000,000 tons of peanut, beans and autumn coarse cereals stalks.The easiest way of Treating straw is directly to burn down on the farm at present.Burning season, once repeatedly occuring to be forced to close event because smog all over the sky causes flight to land with motorway, both wasting a large amount of precious resources, bringing severe contamination to environment again.Therefore agriculture waste biomass outlet has become a great problem that solution is badly in need of in government department.Particularly along with the raising of level of agricultural production development and life of farmers level, fewer and feweri to utilizing of original agriculture waste biomass as fuel and fertilizer, agricultural wastes are more and more.
Summary of the invention
The purpose of this invention is to provide a kind of take the standby particle charcoal of the agriculture waste biomass-makings such as corn cob, Pericarppium arachidis hypogaeae, rice husk, stalk, edible fungi substrate as substrate material, utilize its many micropores, strong adsorptive power, compound with grow necessary nitrogen, phosphorus, potassium and other nutritive elements of ginger, prepare slow-release fertilizer dedicated method and the application of particulate biomass charcoal base ginger, can satisfy better the needs that ginger is produced.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of ginger take the biological particles charcoal as matrix is slow-release fertilizer dedicated, contains
1. biological particles charcoal; With
2. binding agent; With
3. one or more in nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and the trace element fertilizer.
Content by weight percentage:
The content of biological particles charcoal is 10-50%;
The slow-release fertilizer dedicated total nutrient content of described ginger take the biological particles charcoal as matrix is 30-36%; Described total nutrient refer to nitrogen (N) or/and available phosphorus (P2O5) or/and effective potassium (K2O), wherein nitrogenous (N) amount is 11-13%; Contain available phosphorus (P2O5) amount and be 3-5%; Contain effective potassium (K2O) amount and be 16-18%.
Described biological particles charcoal is one or more in corn cob granule charcoal, rice husk particle charcoal, peanut shell granular charcoal, stalk particle charcoal, the mushroom dish particle charcoal.
Described nitrogenous fertilizer is one or more in urea, ammonium nitrate, ammonium sulfate, ammonium chloride and any other formulation fertilizer containing nitrogen.
Described phosphate fertilizer is monoammonium phosphate, diammonium phosphate, calcium superphosphate, fused(calcium magnesium)phosphate, nitrophosphate fertilizer and any one or more that contain in the phosphatic manure.
Described potash fertilizer is that vitriolate of tartar, Repone K, potassium primary phosphate and any other contain in the potassic fertilizer one or more.
Described trace element fertilizer is one or more in the trace element fertilizers such as boron, zinc, manganese, iron, copper or molybdenum.
Biological particles charcoal among the present invention is preferably and adopts anoxic destructive distillation decomposition technique production agriculture waste biological particles charcoal under the inferior hot conditions.Described agriculture waste biomass can be corn cob, rice husk, Pericarppium arachidis hypogaeae, stalk, edible fungi substrate etc., but are not limited to this.
Described binding agent is that wilkinite is or/and clay.
In order to play better slow release effect, according to the ginger nutrient uptake feature, described ginger take the biological particles charcoal as matrix is slow-release fertilizer dedicated, and to contain simultaneously following various composition the most effective:
1) biological particles charcoal; With
2) binding agent; With
3) urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate and borax.
Each component content is slow-release fertilizer dedicated to produce 1 ton of charcoal base ginger:
200-300 kg/tonne of biological particles carbon particle
Urea 220-250 kg/tonne
Diammonium phosphate 50-80 kg/tonne
Fused(calcium magnesium)phosphate 50-90 kg/tonne
Vitriolate of tartar 320-360 kg/tonne
Zinc sulfate 12-16 kg/tonne
Borax 8-10 kg/tonne
Described biological particles carbon particle granularity 80-100 orders, described urea contains N:46%, described diammonium phosphate contains N 18%, P2O5 46%, described fused(calcium magnesium)phosphate contains P2O5:15%, described vitriolate of tartar contains K2O 50%, described zinc sulfate contains zinc 20%～23%, described borax boracic 11%.
Also can further contain other little fertilizer, described other little fertilizer is selected from one or more in manganous sulfate, ammonium molybdate, ferrous sulfate, the copper sulfate.Other little fertile total content is preferably 0.5-1%.The purity of various little fertilizer is preferably more than 90%.
The present invention also further provides the ginger take the biological particles charcoal as matrix slow-release fertilizer dedicated preparation technology, comprises with various component mixing granulations particle diameter 3. 35-5.0mm.
The present invention also further provides the ginger take the biological particles charcoal as matrix slow-release fertilizer dedicated purposes, and used as disposable base fertilizer, preferred amount of application is 160-200 kg/acre, imposes on 12-15cm place under the field planting ridge before the ginger cultivation.
High efficiency charcoal base ginger provided by the invention is slow-release fertilizer dedicated, is the durable composite fertilizer take organic biological particles charcoal as substrate material.The biological particles charcoal that the present invention uses is the black biological particles charcoal particle (carbon black) that the agriculture waste biomass form behind the incomplete combustion under hypoxia condition, multifrequency nature with similar agron (acid), its absorption and keep nutrient and moisture very capable, can also stimulate plant growth, sustained release performance to nitrogen phosphorus potassium is good, the slow-release fertilizer applied once for preparing thus, can effectively supply ginger whole vegetative period the demand to nutrient, utilization rate of fertilizer is high, and has an increase soil fertility, improve the characteristics such as Soil structure and high-efficiency environment friendly, be conducive to large-scale promotion application in ginger is produced.
Compare with existing compound manure, the present invention has the following advantages:
1, had good sustained release effect, utilization rate of fertilizer is high.The charcoal base ginger that the present invention produces is slow-release fertilizer dedicated to have extremely strong adsorptivity, water-retentivity and heating property of extinction, had good sustained release effect, and the fertilizer nutrient utilization ratio is high.After being manured into soil, not only can hold fertilizer slow-release, reduce the fertilizer leaching loss, and heat the water conservation district owing to around each carbon granule, can form a little extinction, both be conducive to increase ground temperature, again to a certain extent slowly-releasing drought and water shortage impact that ginger is grown and produces.
2, production technique is simple, and raw material is easy to get.The used substrate material of the present invention is the biological particles charcoals such as corn cob, Pericarppium arachidis hypogaeae, rice husk, stalk, edible fungi substrate, and raw material comes from the abandoned biomass of agriculture production, and is with low cost, inexhaustible; Equipment used is pulverizer commonly used, simple and easy charring furnace, agitator, granulating disc etc., and production unit is simple, and technical maturity is easy to industrialization.As long as improve slightly, existing fertilizer plant all can directly put into production.
3, environmentally friendly, safety and environmental protection.The used substrate material of the present invention itself is exactly utilization of waste material, and the needing no outside energy does not produce " three wastes " and pollutes the energy-conservation and environmental protection of production process; The plant-derived organism of biological particles charcoal, its main component are charcoal element more than 90%, can natural decomposition in soil, fully noresidue, thereby in use to environment without any pollution, have concurrently simultaneously the improvement Soil structure long-acting characteristic, be conducive to the agricultural Sustainable development.
4, potentiality to be exploited is huge.Ginger is the fertile crop of happiness, the arable land nitrogen stress of China about 90%, and about 30% arable land lacks phosphorus, about 25% arable land potassium deficiency, and soil compaction worsens and ubiquitous fertilizer loss is serious, the low problem of utilization ratio, becomes the important factor of this industry development of puzzlement.The present invention reaches loose, slowly-releasing, economy, environmental protection, increase soil fertility, improves the fertilizer efficiency texts as matrix by applying biological matter particle charcoal element, is a kind of revolutionary change of fertilizer industry.
Embodiment
Below by embodiment the present invention is further described specifically.
A kind of ginger take the biological particles charcoal as matrix is slow-release fertilizer dedicated, comprises:
1. biological particles charcoal; With
2. binding agent; With
3. one or more in nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and the trace element fertilizer.
By weight or weight percent content:
The content of biological particles charcoal is 10-50%.
The slow-release fertilizer dedicated total nutrient content of described ginger take the biological particles charcoal as matrix is 30-36%, meets organic-inorganic composite fertilizer national standard.Described total nutrient refers to nitrogen (N) and available phosphorus (P2O5).Wherein nitrogenous (N) amount is 11-13%; Contain available phosphorus (P2O5) amount and be 3-5%; Contain effective potassium (K2O) amount and be 16-18%.
Described biological particles charcoal is one or more mixture of corn cob granule charcoal, rice husk particle charcoal, peanut shell granular charcoal, stalk particle charcoal or mushroom dish particle charcoal.
Described nitrogenous fertilizer is one or more in urea, ammonium nitrate, ammonium sulfate, ammonium chloride and any other formulation fertilizer containing nitrogen.
Described phosphate fertilizer is monoammonium phosphate, diammonium phosphate, calcium superphosphate, fused(calcium magnesium)phosphate, nitrophosphate fertilizer and any one or more that contain in the phosphatic manure.
Described potash fertilizer is that vitriolate of tartar, Repone K, potassium primary phosphate and any other contain in the potassic fertilizer one or more.
Described trace element fertilizer is one or more in the trace element fertilizers such as boron, zinc, manganese, iron, copper or molybdenum.
Biological particles charcoal among the present invention is preferably and adopts anoxic destructive distillation decomposition technique production agriculture waste biological particles charcoal under the inferior hot conditions.Described agriculture waste biomass can be corn cob, rice husk, Pericarppium arachidis hypogaeae, stalk, edible fungi substrate etc., but are not limited to this.
Described binding agent is that wilkinite is or/and clay.
In order to play better slow release effect, according to the ginger nutrient uptake feature, the ginger take the biological particles charcoal as matrix is slow-release fertilizer dedicated, and to contain simultaneously following various composition the most effective:
1) biological particles charcoal; With
2) binding agent; With
3) urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate and borax.
Each component content is slow-release fertilizer dedicated to produce 1 ton of charcoal base ginger:
200-300 kg/tonne of biological particles carbon particle
Urea 220-250 kg/tonne
Diammonium phosphate 50-80 kg/tonne
Fused(calcium magnesium)phosphate 50-90 kg/tonne
Vitriolate of tartar 320-360 kg/tonne
Zinc sulfate 12-16 kg/tonne
Borax 8-10 kg/tonne
Described biological particles carbon particle granularity 80-100 orders, described urea contains N:46%, described diammonium phosphate contains N 18%, P2O5 46%, described fused(calcium magnesium)phosphate contains P2O5:15%, described vitriolate of tartar contains K2O 50%, described zinc sulfate contains zinc 20%～23%, described borax boracic 11%.
For the area or the field that lack trace element, can in this prescription, on purpose add other little fertilizer, described other little fertilizer is selected from one or more of manganous sulfate, ammonium molybdate, ferrous sulfate, copper sulfate.Other little fertilizer (manganous sulfate, ammonium molybdate, ferrous sulfate, copper sulfate etc.) total content is preferably 0. 5-1% in the special-purpose disposable base fertilizer of ginger.The purity of various little fertilizer is preferably more than 90%.
Described urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate, borax are all available on market, and be all on sale at Agricultural Materials shop.
Described other little fertilizer such as manganous sulfate, ammonium molybdate, ferrous sulfate, copper sulfate etc. are all available on market, and are all on sale at Agricultural Materials shop.
The preferred granular urea of described urea (also being referred to as the urea powder).
The slow-release fertilizer dedicated preparation technology of described ginger take the biological particles charcoal as matrix comprises various component mixing granulations, particle diameter 3. 35-5.0mm.
Ginger take the biological particles charcoal as matrix provided by the invention is slow-release fertilizer dedicated, uses simply, can be used as the special-purpose disposable base fertilizer of ginger.The preferred amount of application of disposable base fertilizer is 160-200 kg/acre, imposes on 12-15cm place under the field planting ridge before the ginger cultivation, exempts to topdress.
Embodiment 1: the preparation technology that the ginger take the biological particles charcoal as matrix is slow-release fertilizer dedicated
Mix with weight ratio or weight percent according to following step:
(1) nitrogenous (N) amount of getting is 46% granular urea; 80 purpose biological particles carbon particles; ratio in 71.7%, 28.3% is mixed; utilization is carried out dressing with the disc-type granulating machine (conventional machinery in the fertilizer preparation process) of heating function, makes the simple substance slow-release nitrogen fertilizer of nitrogenous (N) amount 32.98%.
(2) getting nitrogenous (N) amount is 18%; contain available phosphorus (P2O5) amount and be 46% diammonium phosphate powder, 80 purpose biological particles carbon particle and binding agents; ratio in 73.1%, 20. 8% and 6.1% is mixed; carry out the pressure granulation with KP-300 type organic fertilizer granulator; make nitrogenous (N) amount 13.16%, contain available phosphorus (P2O5) amount and be 33.63% compound nitrogen phosphate fertilizer.
(3) get that to contain available phosphorus (P2O5) amount be 15% fused(calcium magnesium)phosphate, 80 purpose biological particles carbon particle and binding agents; ratio in 73.0%, 20. 9% and 6.1% is mixed; carry out the pressure granulation with KP-300 type organic fertilizer granulator, make that to contain available phosphorus (P2O5) amount be 10.95% slow-release phosphate fertilizer.
(4) get that to contain effective potassium (K2O) amount be that 50% vitriolate of tartar, 80 purpose biological particles carbon particles, binding agent, zinc content are 23% zinc sulfate and boron fertilizer (Agricultural Materials shop is all available); ratio in 69.8%, 19.3%, 6.1%, 2.9%, 1.9% is mixed; carry out the pressure granulation with KP-300 type organic fertilizer granulator, make potassium, zinc, the boron composite fertilizer of potassium content 34. 90%.
Further compound: the finished product of (1), (2), (3) and (4) in 32.8%, 8.9%, 9.6% and 48.7% ratio compound, and are stirred with ZLC-300 type stirrer (conventional machinery in the fertilizer preparation process).
Also can further add 0.5% manganous sulfate and 0.5% copper sulfate, or add 1% ferrous sulfate, stir with ZLC-300 type stirrer (conventional machinery in the fertilizer preparation process).
Described binding agent is the Acidic Bentonite of PH 5.5-6.5.
Claims (7)
1. the ginger take biological particles carbon as matrix is slow-release fertilizer dedicated, it is characterized in that containing:
1). the biological particles charcoal; With
2). binding agent; With
3). one or more in nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and the trace element fertilizer;
Content by weight percentage:
The content of biological particles charcoal is 10-50%;
The slow-release fertilizer dedicated total nutrient content of described ginger take the biological particles charcoal as matrix is 30-36%; Described total nutrient refer to nitrogen (N) or/and available phosphorus (P2O5) or/and effective potassium (K2O), wherein nitrogenous (N) amount is 11-13%; Contain available phosphorus (P2O5) amount and be 3-5%; Contain effective potassium (K2O) amount and be 16-18%;
Described biological particles charcoal is one or more in corn cob granule charcoal, rice husk particle charcoal, peanut shell granular charcoal, stalk particle charcoal, the mushroom dish particle charcoal;
Described nitrogenous fertilizer is one or more in urea, ammonium nitrate, ammonium sulfate, ammonium chloride and any other formulation fertilizer containing nitrogen;
Described phosphate fertilizer is monoammonium phosphate, diammonium phosphate, calcium superphosphate, fused(calcium magnesium)phosphate, nitrophosphate fertilizer and any one or more that contain in the phosphatic manure;
Described potash fertilizer is that vitriolate of tartar, Repone K, potassium primary phosphate and any other contain in the potassic fertilizer one or more;
Described trace element fertilizer is one or more in the trace element fertilizers such as boron, zinc, manganese, iron, copper or molybdenum;
Described binding agent is that wilkinite is or/and clay.
2. a kind of ginger take biological particles carbon as matrix as claimed in claim 1 is slow-release fertilizer dedicated, it is characterized in that containing:
1) biological particles charcoal; With
2) binding agent; With
3) urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate and borax;
Each component content is slow-release fertilizer dedicated to produce 1 ton of charcoal base ginger:
200-300 kg/tonne of biological particles carbon particle
Urea 220-250 kg/tonne
Diammonium phosphate 50-80 kg/tonne
Fused(calcium magnesium)phosphate 50-90 kg/tonne
Vitriolate of tartar 320-360 kg/tonne
Zinc sulfate 12-16 kg/tonne
Borax 8-10 kg/tonne.
3. a kind of ginger take biological particles carbon as matrix as claimed in claim 1 or 2 is slow-release fertilizer dedicated, it is characterized in that described biological particles carbon particle granularity 80-100 orders, described urea contains N:46%, described diammonium phosphate contains N 18%, P2O5 46%, described fused(calcium magnesium)phosphate contains P2O5:15%, described vitriolate of tartar contains K2O 50%, described zinc sulfate contains zinc 20%～23%, described borax boracic 11%.
4. a kind of ginger take biological particles carbon as matrix as claimed in claim 1 or 2 is slow-release fertilizer dedicated, it is characterized in that also further containing other little fertilizer, described other little fertilizer is selected from one or more in manganous sulfate, ammonium molybdate, ferrous sulfate, the copper sulfate.
5. a kind of ginger take biological particles carbon as matrix as claimed in claim 4 is slow-release fertilizer dedicated, it is characterized in that other little fertile total weight percent content is 0. 5-1%.
6. such as the slow-release fertilizer dedicated preparation technology of the arbitrary described a kind of ginger take biological particles carbon as matrix of claim 1-5, it is characterized in that described various component mixing granulations, particle diameter 3. 35-5.0mm.
7. such as the slow-release fertilizer dedicated purposes of the arbitrary described a kind of ginger take biological particles carbon as matrix of claim 1-6, it is characterized in that used as disposable base fertilizer, preferred amount of application is 160-200 kg/acre, imposes on 12-15cm place under the field planting ridge before the ginger cultivation.
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| CN2012102942268A CN102992862A (en) | 2012-08-19 | 2012-08-19 | Special slow-release fertilizer taking biomass granular carbon as matrix for ginger and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319281A (en) * | 2013-07-11 | 2013-09-25 | 济南巴顿化肥有限公司 | Special fertilizer for Zinger Officinale Roscoe, and preparation method thereof |
| CN105503414A (en) * | 2015-12-29 | 2016-04-20 | 芜湖润蓝生物科技有限公司 | Ginger efficient fertilizer beneficial to reducing pungency of ginger and preparation method thereof |
| CN112661572A (en) * | 2020-12-25 | 2021-04-16 | 上海永通生态工程股份有限公司 | Controlled release fertilizer and preparation method and application thereof |
| US11124461B2 (en) | 2019-07-04 | 2021-09-21 | Incitec Pivot Limited | Fertilizer |
| CN114292148A (en) * | 2022-02-09 | 2022-04-08 | 潍坊绿威特生物工程有限公司 | Special fertilizer for ginger for soil remediation and application method thereof |
-
2012
- 2012-08-19 CN CN2012102942268A patent/CN102992862A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319281A (en) * | 2013-07-11 | 2013-09-25 | 济南巴顿化肥有限公司 | Special fertilizer for Zinger Officinale Roscoe, and preparation method thereof |
| CN103319281B (en) * | 2013-07-11 | 2014-06-11 | 济南巴顿化肥有限公司 | Special fertilizer for Zinger Officinale Roscoe, and preparation method thereof |
| CN105503414A (en) * | 2015-12-29 | 2016-04-20 | 芜湖润蓝生物科技有限公司 | Ginger efficient fertilizer beneficial to reducing pungency of ginger and preparation method thereof |
| US11124461B2 (en) | 2019-07-04 | 2021-09-21 | Incitec Pivot Limited | Fertilizer |
| US11691929B2 (en) | 2019-07-04 | 2023-07-04 | Incitec Fertilizers Pty Limited | Fertiliser |
| CN112661572A (en) * | 2020-12-25 | 2021-04-16 | 上海永通生态工程股份有限公司 | Controlled release fertilizer and preparation method and application thereof |
| CN114292148A (en) * | 2022-02-09 | 2022-04-08 | 潍坊绿威特生物工程有限公司 | Special fertilizer for ginger for soil remediation and application method thereof |
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Application publication date: 20130327 |