CN102336617A - High-tower granulation slow release long-effect chlorine base compound fertilizer and preparation method thereof - Google Patents
High-tower granulation slow release long-effect chlorine base compound fertilizer and preparation method thereof Download PDFInfo
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- CN102336617A CN102336617A CN2011102587736A CN201110258773A CN102336617A CN 102336617 A CN102336617 A CN 102336617A CN 2011102587736 A CN2011102587736 A CN 2011102587736A CN 201110258773 A CN201110258773 A CN 201110258773A CN 102336617 A CN102336617 A CN 102336617A
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Abstract
The invention relates to a high-tower granulation slow release long-effect chlorine base compound fertilizer and a preparation method thereof, which belong to mixed fertilizers. Firstly, a high-tower granulation device is used for preparing high-tower granulation urea compound fertilizer particles, then, the paraffin primary covering and the modified zeolite powder surface secondary covering are carried out on the urea compound fertilizer particles to obtain the high-tower granulation urea compound fertilizer particles, and the high-tower granulation urea compound fertilizer particles consist of the following ingredients in part by weight: 35 to 50 of urea, 35 to 45 of potassium chloride and 15 to 20 of ammonium chloride. In the paraffin primary covering process, the paraffin consumption is 0.5 percent to 1.2 percent of the mass of the high-tower granulation urea compound fertilizer particles, and the modified zeolite powder consists of the following ingredients in percentage by weight: 1 to 5 of zinc stearate and 95 to 99 of zeolite powder. The invention provides the high-tower granulation slow release long-effect chlorine base compound fertilizer and the preparation method thereof, and the high-tower granulation slow release long-effect chlorine base compound fertilizer is matched with the high-tower granulation device to be used and has the advantages that the slow release effect is good, the fertilizer nutrient utilization rate is high, the process is simple, the production cost is lower, and the soil, atmosphere and water body environment is favorably protected.
Description
Technical field
The present invention is a kind of high tower pellatizer slow release long-acting chlorine-based compound fertilizer material and preparation method thereof.Belong to mixed fertilizer.
Background technology
Traditional NpK complex fertilizer plant recovery of nutrient is merely 25%-35%, and wherein the utilization ratio less than 30% of nitrogenous fertilizer is lost especially severe, and causes the pollution of soil pollution, atmospheric environment.
Chinese patent CN 200510102650.8 discloses a kind of melt slime granulating composite fertilizer and method of manufacture thereof; One of technical problem that solves is that composite fertilizer's texture ratio of producing of traditional prilling process is more loose; The fertilizer dissolving discharges very fast; Fertilizer efficiency is decomposed loss piece, the problem that utilization rate of fertilizer is lower.The technical scheme that adopts is that manufacturing processed adopts high-temperature fusion urea to do carrier, merges raw material evenly, is spraying the cooling granulating through cat head.Obtained better technical effect.But adopt that above-mentioned preparation method produces compound fertilizer production with tower granulation material product, slow release effect is still not good enough.
Coating controlled-release fertilizer of the prior art, endoplasm type controlled release is fertile, and stable controlled release is fertile, biostats type controlled release fertilizer, its coated slow-release material adopts sulphur or synthetic resins more, and wherein the sulphur film is prone to fragmentation, and crops such as paddy rice class are prone to produce the murder by poisoning spinoff.Coated with resin costs an arm and a leg and is difficult in degraded in soil.
The content of cl ions surpasses 3% composite fertilizer and is called chlorine-based compound fertilizer, because there is negative impact in chlorine-based compound fertilizer to the growth of some fear-chlorion crop, and cl ions concentrating in soil is residual in a large number, is prone to cause soil compaction, salinization, alkalization.So some composite fertilizer manufacturing enterprise adopts vitriolate of tartar to replace Repone K in the potassium source in the compound fertilizer product, perhaps sloughs the cl ions in the Repone K, processes so-called S-based compound fertilizer.The S-based compound fertilizer complicated process of preparation, production cost is high, and price is also higher, has increased the agricultural-food production cost.
Yet; Chlorine is one of seven kinds of necessary trace elements of plant-growth, and the chlorine element can get into vegetable cell through the photosynthesis of involved in plant, plays the startup and closure of the osmotic pressure and the pore of adjusting vegetable cell; Help moisture and nutrient absorbing; Improve its drought-resistant ability, cl ions has effects such as the photosynthesis of promotion and fiber formation, and it is particularly suitable that fibre crops such as crudefiber crop are used; Improve the resistance against diseases of plant, like gaeumannomyces graminis disease, the stripe rust of wheat, the stem wilt of corn etc.Cl ions has restraining effect to the nitrobacteria in the soil, can delay the conversion rate of ammonium nitrogen to nitric nitrogen, run off and denitrification loss thereby effectively reduce nitric nitrogen, and be the lasting fertilizer effect of nitrogenous fertilizer.Say again, the stabilizing ion in the chlorine crop plants cell, the balance of storage of ions and the absorption of elements such as nitrogen, phosphine, potassium, calcium, magnesium, silicon all had active effect in the pair cell helps promoting growing of plant stem-leaf.
Chlorine element in compound manure is played a positive role in promoting crop growth, and avoiding its disadvantageous effect to plant growth and edatope again also is that people expect the problem that solves.
At present, high tower pellatizer slow release long-acting chlorine-based compound fertilizer material is not also seen reported in literature as yet.
Summary of the invention
The objective of the invention is to avoid above-mentioned weak point of the prior art; And the had good sustained release effect that provides a kind of and high tower pellatizer matched with devices to use; The fertilizer nutrient utilization ratio is high, and the chlorine element in the compound manure can play one's part to the full in crop growth, and technology is simple; Production cost is lower, is of value to long-acting chlorine-based compound fertilizer material of high-tower slow-release of soil and atmosphere and water body environment protection and preparation method thereof.
The object of the invention can reach through following measure:
At first prepare high tower pellatizer urea compound fertilizer granule, then the urea compound fertilizer particle is carried out paraffin and once coat to coat and make with modified zeolite powder surface secondary through the high tower pellatizer device, wherein:
Said high tower pellatizer urea compound fertilizer granule is by forming in the raw material of parts by weight as follows:
Urea 35～50
Repone K 35～45
Ammonium chloride 15～20
Said paraffin once coats, and the consumption of paraffin is 0.5%～1.2% of a high tower pellatizer urea compound fertilizer granule quality,
Said modified zeolite powder is made up of following raw material by weight percentage:
Zinic stearas 1～5
Zeolite powder 95～99
Its preparation method comprises the steps:
The preparation of step 1. high tower pellatizer urea compound fertilizer granule
A. urea melting
To drop in the fusion tank according to the urea of drafting the accurate metering of prescription, be heated to 125 ℃～138 ℃, and be equipped with one-level and mix;
B. monoammonium phosphate, Repone K preheating
To drop in the one-level mixing tank according to the Repone K of drafting the accurate metering of prescription, ammonium chloride, be preheated to 40 ℃～60 ℃, subsequent use;
C. low temperature eutectic preparation
The fusing urea for preparing in a step is sent into the one-level mixing tank; After mixing with Repone K, the ammonium chloride of preheating in the b step; Drop in the secondary mixing tank, further mix, slip mixing time＜4min forms the low temperature eutectic with certain flowing property; And slurry temperature is controlled at 110 ℃-120 ℃, be equipped with granulation and use;
D. sprinkling pelleting
With the low temperature eutectic for preparing among the step c, through the granulation of high tower pellatizer system, be cooled under the tower granule materials temperature＜65 ℃,
Rotary drum cooling temperature＜40 ℃ make high tower pellatizer urea compound fertilizer granule, are equipped with screening;
E. screening
The high tower pellatizer urea compound fertilizer granule of steps d preparation after screening, must meet the urine base high tower compound fertilizer material particle of product requirement granularity, is equipped with once to coat, and screenings returns the one-level mixing tank after fragmentation;
Step 2. paraffin once coats
The high tower pellatizer urea compound fertilizer granule that makes in the step 1 gets into coating machine, with melt paraffin the fertiliser granulates surface is coated;
Step 3. modified zeolite powder secondary coats
Fertiliser granulates through step 2 once coats gets in the coating machine, coats with the modified zeolite powder secondary; After the assay was approved, metering, packing promptly get high tower pellatizer slow release long-acting chlorine-based compound fertilizer material of the present invention.
The present invention at first prepares high tower pellatizer urea compound fertilizer granule through the high tower pellatizer device, then the urea compound fertilizer particle is carried out paraffin and once coats to coat with modified zeolite powder surface secondary and make.It mainly is the characteristic that can form suspended solid mixed slurry after utilizing urea melting liquid and calcium sulfate, ammonium sulfate mixing with the good eutectic of flowing property; And pass through prilling spry; Mixed slurry is sprayed in the prilling tower; Make it in the process of gravity landing, carry out heat exchange with the airflow that rises, cooling curing forms particle, obtains the compound manure that has the pin hole shape that nutrient is evenly distributed.The high tower pellatizer technology has been simplified the granulation production technique, practices thrift energy consumption for drying, mellow and full, the prevented from caking of particle, and production technique is easy, and useful environment protection can access the high nitrogen that has the pin hole shape, high-concentration compound fertilizer material that nutrient is evenly distributed.
Then the urea compound fertilizer particle being carried out paraffin once coats and the secondary coating of modified zeolite powder surface.It is broken to have avoided the sulphur film to be prone to, and crops such as paddy rice class are prone to produce the murder by poisoning spinoff.Coated with resin costs an arm and a leg and is difficult for the drawback in degraded in soil.
It is the urine base high tower compound fertilizer material of nitrogenous source that the present invention adopts with urea; Carrying out paraffin once coats with modified zeolite powder surface secondary cladding process simple; Cost is lower, is of value to the protection of soil and atmosphere and water body environment, and the high tower pellatizer slow release long-acting chlorine-based compound fertilizer material slow release effect of preparation is remarkable.Successful solution the chlorine element in compound manure in promoting crop growth, the problem that continues to play a positive role has been avoided its disadvantageous effect to plant growth and edatope.
The object of the invention can also reach through following measure:
High tower pellatizer slow release long-acting chlorine-based compound fertilizer material of the present invention and preparation method thereof, said raw material technical indicator is following:
Urea; Particle diameter is less than 2MM, and liquid two urea content are less than 1.5%, and nitrogen content is greater than 46%
Repone K: particle powdery 40-60 order, K2O content is greater than 50%, and specification of quality reaches agricultural requirement
Ammonium chloride, particle powdery, 40-60 order.The agricultural grade requirement
Zeolite powder: granularity 60-100 order.
High tower pellatizer slow release long-acting chlorine-based compound fertilizer material of the present invention and preparation method thereof, said high tower pellatizer urea compound fertilizer granule is by forming in the raw material of parts by weight as follows:
Urea 38～45
Repone K 37～42
Ammonium chloride 17～20
Said paraffin once coats, and the consumption of paraffin is 0.6%～1.0% of a high tower pellatizer urea compound fertilizer granule quality,
Said modified zeolite powder is made up of following raw material by weight percentage:
Zinic stearas 3-5
Zeolite powder 95～97.
It is optimized technical scheme.
High tower pellatizer slow release long-acting chlorine-based compound fertilizer material of the present invention and preparation method thereof, said high tower pellatizer urea compound fertilizer granule is by forming in the raw material of parts by weight as follows:
Urea 40
Repone K 40
Ammonium chloride 20
Said paraffin once coats, and the consumption of paraffin is 1.0% of a high tower pellatizer urea compound fertilizer granule quality,
Said modified zeolite powder is made up of following raw material by weight percentage:
Zinic stearas 5
Zeolite powder 95.
It is the technical scheme of an optimum.
The application of high tower pellatizer slow release long-acting chlorine-based compound fertilizer material of the present invention; It is characterized in that being applicable to wheat; Corn, rice field crop and vegetables and fruit tree are used, and on average improve utilization rate of fertilizer 10%-23%; Farm crop are on average improved output 6.5%-13.3%, on average improve output 11%-27.5% for greengrocery.
High tower pellatizer slow release long-acting chlorine-based compound fertilizer material of the present invention and preparation method thereof disclosed technical scheme, comparing prior art has following positively effect:
1. a kind of had good sustained release effect of using with the high tower pellatizer matched with devices is provided; The fertilizer nutrient utilization ratio is high; Chlorine element in the compound manure can play one's part to the full in crop growth; Technology is simple, and production cost is lower, is of value to long-acting chlorine-based compound fertilizer material of high-tower slow-release of soil and atmosphere and water body environment protection and preparation method thereof.
3. the high tower pellatizer technology has been simplified the granulation production technique, practices thrift energy consumption for drying, mellow and full, the prevented from caking of particle, and production technique is easy, and useful environment protection can access the high nitrogen that has the pin hole shape, high-concentration compound fertilizer material that nutrient is evenly distributed.
4. paraffin, modified zeolite secondary coat, and it is broken to have avoided the sulphur film to be prone to, and easy generation of crops such as paddy rice class poisoned spinoff.Coated with resin costs an arm and a leg and is difficult for the drawback in degraded in soil.
5. high tower pellatizer slow release long-acting chlorine-based compound fertilizer material of the present invention, manufacturing cost reduces, and compares with sulphur based compound fertilizer, and fertilizer efficiency is better than S-based compound fertilizer, but price is significantly less than sulphur based compound fertilizer.Still all can bring remarkable economic efficiency to the composite fertilizer user to composite fertilizer manufacturing enterprise.
6. be applicable to wheat, corn, rice field crop and vegetables and fruit tree are used, and on average improve utilization rate of fertilizer 10%-23%, and farm crop are on average improved output 6.5%-13.3%, on average improve output 11%-27.5% for greengrocery.
Description of drawings
Fig. 1 is a high tower pellatizer slow release long-acting chlorine-based compound fertilizer preparation method for material process flow diagram of the present invention.
Embodiment
The present invention below will combine embodiment to make further detailed description:
Embodiment 1 prepares high tower pellatizer slow release long-acting chlorine-based compound fertilizer material of the present invention according to following steps
The preparation of step 1. high tower pellatizer urea compound fertilizer granule
A. urea melting
Accurately take by weighing urea 40 weight parts, drop in the fusion tank, be heated to 125 ℃～138 ℃, be equipped with one-level and mix;
B. Repone K, ammonium chloride preheating
Accurately take by weighing Repone K 40 weight parts, ammonium chloride 20 weight parts, drop in the one-level mixing tank, be preheated to 40 ℃～60 ℃, subsequent use;
C. low temperature eutectic preparation
The fusing urea for preparing in a step is sent into the one-level mixing tank; After mixing with Repone K, the ammonium chloride of preheating in the b step; Drop in the secondary mixing tank, further mix, slip mixing time＜4min forms the low temperature eutectic with certain flowing property; And slurry temperature is controlled at 110 ℃-120 ℃, be equipped with granulation and use;
D. sprinkling pelleting
With the low temperature eutectic for preparing among the step c, through the granulation of high tower pellatizer system, be cooled under the tower granule materials temperature＜65 ℃,
Rotary drum cooling temperature＜40 ℃ make high tower pellatizer urea compound fertilizer granule, are equipped with screening;
E. screening
The high tower pellatizer urea compound fertilizer granule grain of steps d preparation after screening, must meet the high tower pellatizer urea compound fertilizer granule of product requirement granularity, is equipped with once to coat, and screenings returns the one-level mixing tank after fragmentation;
Step 2. paraffin once coats
The high tower pellatizer urea compound fertilizer granule that makes in the step 1 gets into coating machine, with melt paraffin the fertiliser granulates surface is coated; The consumption of paraffin is 1.0% of a high tower compound fertilizer quality;
Step 3. modified zeolite powder secondary coats
Fertiliser granulates through step 2 once coats gets in the coating machine, coats with the modified zeolite powder secondary; Modified zeolite powder is made up of following raw material by weight percentage:
Zinic stearas 5
Zeolite powder 95.
After the assay was approved, metering, packing promptly get high tower pellatizer slow release long-acting chlorine-based compound fertilizer material of the present invention.
Embodiment 2～embodiment 7
According to method and the step of embodiment 1,, prepare high tower pellatizer slow release long-acting chlorine-based compound fertilizer material of the present invention according to the prescription of table 1
Table 1
| Raw material | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 |
| Urea | 35 | 48 | 36 | 40 | 44 | 50 |
| Repone K | 45 | 37 | 45 | 40 | 40 | 35 |
| Ammonium chloride | 20 | 15 | 19 | 20 | 16 | 15 |
| Paraffin | 0.5 | 0.6 | 0.8 | 1.2 | 0.9 | 1.0 |
| Zinic stearas | 1 | 2 | 3 | 4 | 2 | 5 |
| Zeolite powder | 99 | 98 | 97 | 96 | 98 | 95 |
The high tower pellatizer slow release long-acting chlorine-based compound fertilizer material that embodiment 1～embodiment 7 makes all is applicable to wheat; Corn; Rice field crop and vegetables and fruit tree are used; The average utilization rate of fertilizer 10%-23% that improves on average improves output 6.5%-13.3% to farm crop, on average improves output 11%-27.5% for greengrocery.
Claims (5)
1. high tower pellatizer slow release long-acting chlorine-based compound fertilizer material and preparation method thereof; It is characterized in that at first preparing the high-tower granulation urea-based compound fertilizer particle through the high tower pellatizer device; Then the urea-based compound fertilizer particle is carried out paraffin and once coat to coat and make with modified zeolite powder surface secondary, wherein:
Said high-tower granulation urea-based compound fertilizer particle is by forming in the raw material of parts by weight as follows:
Urea 35～50
Repone K 35～45
Ammonium chloride 15～20
Said paraffin once coats, and the consumption of paraffin is 0.5%～1.2% of a high-tower granulation urea-based compound fertilizer granular mass,
Said modified zeolite powder is made up of following raw material by weight percentage:
Zinic stearas 1～5
Zeolite powder 95～99
Its preparation method comprises the steps:
The preparation of step 1. high-tower granulation urea-based compound fertilizer particulate
A. urea melting
To drop in the fusion tank according to the urea of drafting the accurate metering of prescription, be heated to 125 ℃～138 ℃, and be equipped with one-level and mix;
B. monoammonium phosphate, Repone K preheating
To drop in the one-level mixing tank according to the Repone K of drafting the accurate metering of prescription, ammonium chloride, be preheated to 40 ℃～60 ℃, subsequent use;
C. low temperature eutectic preparation
The fusing urea for preparing in a step is sent into the one-level mixing tank; After mixing with Repone K, the ammonium chloride of preheating in the b step; Drop in the secondary mixing tank, further mix, slip mixing time＜4min forms the low temperature eutectic with certain flowing property; And slurry temperature is controlled at 110 ℃-120 ℃, be equipped with granulation and use;
D. sprinkling pelleting
With the low temperature eutectic for preparing among the step c, through the granulation of high tower pellatizer system, be cooled under the tower granule materials temperature＜65 ℃,
Rotary drum cooling temperature＜40 ℃ make the high-tower granulation urea-based compound fertilizer particle, are equipped with screening;
E. screening
The high-tower granulation urea-based compound fertilizer particle of steps d preparation after screening, must meet the urine base high tower compound fertilizer material particle of product requirement granularity, is equipped with once to coat, and screenings returns the one-level mixing tank after fragmentation;
Step 2. paraffin once coats
The high-tower granulation urea-based compound fertilizer particle that makes in the step 1 gets into coating machine, with melt paraffin the fertiliser granulates surface is coated;
Step 3. modified zeolite powder secondary coats
Fertiliser granulates through step 2 once coats gets in the coating machine, coats with the modified zeolite powder secondary; After the assay was approved, metering, packing promptly get high tower pellatizer slow release long-acting chlorine-based compound fertilizer material of the present invention.
2. according to high tower pellatizer slow release long-acting chlorine-based compound fertilizer material of claim 1 and preparation method thereof, it is characterized in that said raw material technical indicator is following:
Urea; Particle diameter is less than 2MM, and Biuret Content is less than 1.5%, and nitrogen content is greater than 46%
Repone K: particle powdery 40-60 order, K2O content is greater than 50%, and specification of quality reaches agricultural requirement
Ammonium chloride, particle powdery, 40-60 order.The agricultural grade requirement
Zeolite powder: granularity 60-100 order.
3. according to high tower pellatizer slow release long-acting chlorine-based compound fertilizer material of claim 1 and preparation method thereof, it is characterized in that said high-tower granulation urea-based compound fertilizer particle is by forming in the raw material of parts by weight as follows:
Urea 38～45
Repone K 37～42
Ammonium chloride 17～20
Said paraffin once coats, and the consumption of paraffin is 0.6%～1.0% of a high-tower granulation urea-based compound fertilizer granular mass,
Said modified zeolite powder is made up of following raw material by weight percentage:
Zinic stearas 3-5
Zeolite powder 95～97.
4. according to high tower pellatizer slow release long-acting chlorine-based compound fertilizer material of claim 1 and preparation method thereof, it is characterized in that said high-tower granulation urea-based compound fertilizer particle is by forming in the raw material of parts by weight as follows:
Urea 40
Repone K 40
Ammonium chloride 20
Said paraffin once coats, and the consumption of paraffin is 1.0% of a high-tower granulation urea-based compound fertilizer granular mass,
Said modified zeolite powder is made up of following raw material by weight percentage:
Zinic stearas 5
Zeolite powder 95.
5. the application of the high tower pellatizer slow release long-acting chlorine-based compound fertilizer material of claim 1; It is characterized in that being applicable to wheat; Corn, rice field crop and vegetables and fruit tree are used, and on average improve utilization rate of fertilizer 10%-23%; Farm crop are on average improved output 6.5%-13.3%, on average improve output 11%-27.5% for greengrocery.
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Cited By (6)
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| CN103086791A (en) * | 2012-12-26 | 2013-05-08 | 施可丰化工股份有限公司 | Environment-friendly chlorine-based nitro potash composite slow-release fertilizer |
| WO2014101270A1 (en) * | 2012-12-26 | 2014-07-03 | 施可丰化工股份有限公司 | Method for preparing slow-release long-acting chlorine-based nitrogen potassium compound fertilizer |
| WO2014101269A1 (en) * | 2012-12-26 | 2014-07-03 | 施可丰化工股份有限公司 | Method for preparing special slow-release long-acting compound fertilizer for paddy rice |
| CN107586189A (en) * | 2017-07-18 | 2018-01-16 | 湖北富邦科技股份有限公司 | A kind of preparation method of the special damp-proof urea of Blending Fertilizer |
| CN110256143A (en) * | 2019-06-18 | 2019-09-20 | 福建奥利高塔复合肥有限公司 | A kind of preparation process of novel compound fertilizer production with tower granulation |
| CN110304959A (en) * | 2019-06-18 | 2019-10-08 | 福建奥利高塔复合肥有限公司 | A kind of preparation process of energy conservation and environmental protection high-tower granulation slow release long-acting compound fertilizer |
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| CN1762923A (en) * | 2005-09-13 | 2006-04-26 | 临沂市史丹利化肥有限公司 | Melt slime granulating composite fertilizer and its production method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086791A (en) * | 2012-12-26 | 2013-05-08 | 施可丰化工股份有限公司 | Environment-friendly chlorine-based nitro potash composite slow-release fertilizer |
| WO2014101270A1 (en) * | 2012-12-26 | 2014-07-03 | 施可丰化工股份有限公司 | Method for preparing slow-release long-acting chlorine-based nitrogen potassium compound fertilizer |
| WO2014101269A1 (en) * | 2012-12-26 | 2014-07-03 | 施可丰化工股份有限公司 | Method for preparing special slow-release long-acting compound fertilizer for paddy rice |
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| CN107586189A (en) * | 2017-07-18 | 2018-01-16 | 湖北富邦科技股份有限公司 | A kind of preparation method of the special damp-proof urea of Blending Fertilizer |
| CN110256143A (en) * | 2019-06-18 | 2019-09-20 | 福建奥利高塔复合肥有限公司 | A kind of preparation process of novel compound fertilizer production with tower granulation |
| CN110304959A (en) * | 2019-06-18 | 2019-10-08 | 福建奥利高塔复合肥有限公司 | A kind of preparation process of energy conservation and environmental protection high-tower granulation slow release long-acting compound fertilizer |
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| CN102336617B (en) | 2013-09-25 |
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Application publication date: 20120201 Assignee: Stanley Fertilizer (Pingyuan) Co., Ltd. Assignor: Stanley Fertilizer Stock Co., Ltd. Contract record no.: 2014370000039 Denomination of invention: High-tower granulation slow release long-effect chlorine base compound fertilizer and preparation method thereof Granted publication date: 20130925 License type: Exclusive License Record date: 20140402 |
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Address after: 276700 Linshu Chang Linzhu County, Linyi City, East Street, East first Patentee after: STANLEY agricultural group Limited by Share Ltd Address before: 276700 Linshu Chang Linzhu County, Linyi City, East Street, East first Patentee before: Stanley Fertilizer Stock Co., Ltd. |