CN1603286A - Method for producing organic and inorganic compound slow release fertilizer - Google Patents
Method for producing organic and inorganic compound slow release fertilizer Download PDFInfo
- Publication number
- CN1603286A CN1603286A CN 200410078164 CN200410078164A CN1603286A CN 1603286 A CN1603286 A CN 1603286A CN 200410078164 CN200410078164 CN 200410078164 CN 200410078164 A CN200410078164 A CN 200410078164A CN 1603286 A CN1603286 A CN 1603286A
- Authority
- CN
- China
- Prior art keywords
- fertilizer
- coating
- organic
- inorganic compound
- slow release
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Fertilizers (AREA)
Abstract
This invention discloses production of organic complex fertilizer by organic complex fertilizer granulation bonding agent CF2, the material are scale animal feces that fermented or weathered coal and nitrogen, phosphor, potassium fertilizer. Envelope agent that released at different time interval are used, depleted plastic-starch mixed polymer cementing envelope agent, clay-polyester mixed polymer cementing envelope agent, sulphonation woody cementing envelope agent, humic acid style mixed polymer cementing envelope agent, and organic-inorganic complex mixed slow release fertilizer is generated to be used on all kinds of crops.
Description
The invention belongs to agricultural, ecotope field.
1. background of invention
Organic fertilizer itself is exactly the fertilizer that a kind of nutrient slowly discharges.Its research is divided into three phases:
(1) traditional organic fertilizer stage
China peasant uses organic fertilizer to have history in several thousand, sets up a whole set of sophisticated collected manure, composting, guarantor's fertilizer, uses fertile technology.
(2) fertilizer and chemical fertilizer compounding application stage
Since the late 1960s and the beginning of the seventies, China greatly develops chemical fertilizer, and China has entered the stage of fertilizer and chemical fertilizer compounding application from Organic farming.
(3) the organic-inorganic compound mixed fertilizer stage
The eighties in 20th century, China's mass-producing livestock and poultry farm tempo is very fast, and organic waste batch production processing and organic fertilizer commercialization become new research topic.The Ministry of Agriculture and former State Scientific and Technological Commission are respectively in " eight or five " and " 95 " project verification research, and it is Zhang Fudao per capita that its problem is presided over, and particularly during " 95 " tackling of key scientific and technical problems, have developed organic fermentation materials adhesive for granulating, for the production of mixed organic manure is laid a good foundation.And patent of invention, application number 02123522.8 have been declared on July 2nd, 2002.
2. purpose of the present invention
(1) organic-inorganic compound mixed fertilizer has solved granulation and the commercialization problem behind the mass-producing livestock and poultry farm manure fermentation; though it is slow that the fertilizer nitrogen release rate in the organic-inorganic compound mixed fertilizer discharges than pure fertilizer nitrogen; but it is faster than slow release fertilizer nitrogen release rate; be necessary to carry out technology upgrading, make organic-inorganic compound mixed fertilizer upgrade to the organic and inorganic slow release fertilizer.
(2) present slow release fertilizer both domestic and external is chemical fertilizer, lacks organic composition, long-term application, and it is unfavorable that soil physical and chemical property is improved.
3. technical scheme of the present invention
Organic materials behind the fermentation maturity or the weathered coal behind crushing screening are mixed with nitrogen, phosphorus, potassium fertilizer in proportion, add adhesive for granulating CF2 used in the present invention, adopt the production of compound fertilizer general-purpose equipment, by granulation, drying, screening, obtain rounded grain shape organic-inorganic compound mixed fertilizer; With fertile slow special-purpose the rotation in the coating cylinder provided by the present invention that add of above particle, spray the coating cementing agent aqueous solution that dilutes to particle surface, use the talcum powder face powder also again through warm air drying.
4. detailed description of the present invention
Principle of the present invention is that (content of humic acid is more than 50% with the organic materials behind the fermentation maturity (feces of livestock and poultry and crop material) or weathered coal, pulverized 100 mesh sieve holes, sieve diameter 0.149mm) with nitrogen, phosphorus, potassium fertilizer even blend, use adhesive for granulating CF2 granulation, dry, sieve, become organic-inorganic compound mixed fertilizer; Select the garden particle organic-inorganic compound mixed fertilizer of diameter 1-5mm, use different time sections to discharge the coating cementing agent coating of nutrient, promptly become adhesive coating type organic and inorganic compound slow release fertilizer, thereby prolong the time of releasing of nitrogen in the composite fertilizer.
The main technique route:
Accompanying drawing 1 is seen in the organic and inorganic compound slow release fertilizer technical process.
1) selection of coating cementing agent
(1) adhesive for granulating CF2 (number of patent application: 02123522.8, publication number: CN1390812A)
(2) waste plastic-starch mix the polymers adhesive coating agent (number of patent application: 02125678.0, publication number: CN1388169A)
(3) clay-polyester mixed polymer adhesive coating agent (number of patent application: 02126009.5, publication number: CN1414033A)
(4) the sulfonated lignin adhesive coating agent (number of patent application: 02149247.6, publication number: CN1417173A)
(5) humic acids mix the polymers adhesive coating agent (number of patent application: 02123975.4, publication number: CN1390877A)
Use adhesive for granulating to prepare organic-inorganic compound mixed fertilizer, again with above-mentioned coating cementing agent parcel preparation organic and inorganic compound slow release fertilizer, in order to estimate the sustained release performance of each fertilizer nitrogen nutrient, adopt soil to annotate the intermittent leaching method (referring to Paramasivam S and A.K.Ara, Nitrogn recovery from controlled release fertilizers underintermittent leaching and dry cyclings[J] .Soil Sci., 1997,162:447-453.), the results are shown in Table 1.
The nitrogen accumulation drenches rate (%) in table 1 earth pillar
| Fertilizer variety | ???2d | ???4d | ???6d | ???8d | ???14d | ???20d |
| Deng the NPK chemical fertilizer | ??4.01 | ??6.73 | ??8.37 | ??9.80 | ??12.59 | ??15.46 |
| CF2 bonds fertile | ??2.65 | ??3.58 | ??4.31 | ??5.81 | ??7.01 | ??8.20 |
| Waste plastic-starch mixes the polymers coat fertilizer | ??1.85 | ??2.67 | ??3.32 | ??3.80 | ??4.25 | ??5.04 |
| Clay-polyester mixed polymer coat fertilizer | ??2.5 | ??3.15 | ??4.30 | ??4.87 | ??6.17 | ??6.98 |
| Sulfonated lignin mixes the polymers coat fertilizer | ??1.42 | ??2.19 | ??3.01 | ??3.53 | ??4.85 | ??5.57 |
| Humic acids mixes the polymers coat fertilizer | ??1.93 | ??2.62 | ??3.32 | ??3.78 | ??4.91 | ??5.81 |
Earth pillar water wash result, it is minimum that 20 days nitrogen accumulative total leaching rates mix the polymers coat fertilizer with waste plastic-starch, secondly mix polymers coat fertilizer and the mixed polymers coat fertilizer of humic acids for sulfonated lignin, secondly be clay-polyester mixed polymer coat fertilizer again, the glued fertile nitrogen accumulative total leaching rate of adhesive for granulating CF2 is higher, but, illustrate that CF2 binding type organic-inorganic compound mixed fertilizer has certain slow release effect far below waiting NPK chemical fertilizer.After explanation is simultaneously wrapped up with above coating cementing agent, can prolong the time of releasing of nitrogen in the fertilizer.These 4 kinds of coating cementing agents all can be used for the agent of organic-inorganic complex fertilizer coating.
2) organic-inorganic complex fertilizer production method
After the organic materials high-temperature aerobic fermentation becomes thoroughly decomposed, by its butt, take by weighing 40% the fermentation after organic materials, add 60% chemical fertilizer in addition, nitrogen (N), phosphorus (P
2O
5), potassium (K
2O) content can need ratio to take by weighing in Different Crop.Behind the abundant mixing of asymmetric double spiral mixer; add organic compound fertilizer pelletizing adhesive CF2; add-on is 0.5%～1% of an organic and inorganic mixture butt quality; fully behind the mixing; send into granulation in the rotary drum granulator with rotary conveyor; enter rotary drying drum then, rotary course is actual to be again granulation process.Dry back is by the trommel screen screening, returns granulation more after crushed less than 1mm with greater than the material of 5mm.
3) method for producing organic and inorganic compound slow release fertilizer
(1) organic-inorganic compound mixed fertilizer coating
Select the mixed organic manure of diameter 1～5mm, slowly send into rotation coating cylinder with rotary conveyor.Drum diameter 1500mm, long 8000mm is divided into two sections, and preceding half section is the coating chamber, second half section is the face powder kiln, and the 4000mm place is welded with a semicircle baffle in the middle of inwall, and high 100mm, inwall also are welded with 12 row's material lifting flightss, the long 300mm of material lifting flights, high 150mm is staggered.Coating tube feeding end puts in one and sprays coating agent pipe, long 800mm, diameter are the 25mm stainless steel tube, and 2 shower nozzles, nozzle bore 10 μ m are installed in the pipe two ends, by in pressure pump (pressure is greater than the 0.4Mpa) ascending pipe, be vaporific sprinkling (seeing accompanying drawing 2) behind 5 times of the coating agent dilute with waters.The organic-inorganic compound mixed fertilizer rounded grain rotates in rotor on one side and raises up, and sprays vaporific coating cementing agent on one side, to fertiliser granulates surperficial complete moistening till.Coating cementing agent mother liquor consumption is the 1%-3% of the fertile butt quality of compound.
(2) face powder is dry
Compound fertilizer behind the coating enters the face powder chamber by middle baffle, and applying medicinal powder feeds the face powder chamber for pulverizing the talcum powder that 200 mesh sieve holes (sieve diameter 0.074mm) are crossed in the back through the face powder pipe.Moistening fertiliser granulates rotates on one side, raises up and rolls, Yi Bian be stained with one deck talcum powder.Hot blast feeds the heating duct of rotation coating cylinder bottom, about 80 ℃-100 ℃ of wind-warm syndrome, and the fertiliser granulates behind the coating face powder flows out the coating tube after warm air drying, the dry sclerosis in surface this moment.
(3) packing of sieving
Two sections of vibrosieves, first section is the 1mm sieve aperture, and second section is the 3mm sieve aperture, and the rounded grain slow release fertilizer of diameter 1～3mm and 3～5mm packs respectively, returns granulation again less than the powder of 1mm.
5. description of drawings
Accompanying drawing 1 process flow sheet of the present invention
Accompanying drawing 2 rotation coating cylinder synoptic diagram
6. advantage of the present invention
1) equipment is simple, improves the transformation of existing Chemical Mixed Fertilizer Equipment Foundations and can produce organic and inorganic compound slow-release fertilizer.
2) slow release fertilizer had both contained the inorganic fertilizer composition, contained again organic composition, was beneficial to improvement soil.
3) can adjust according to Different Crop the ratio of nitrogen, phosphorus, potassium content to nutrient demand.
Embodiment one
1) preparation of organic-inorganic complex fertilizer
Take by weighing organic materials (the fermentation maturity fertilizer is in butt): 412kg, add urea: 286.3kg (urea contains N46%) in addition, (monoammonium phosphate contains P to monoammonium phosphate: 166.7kg
2O
545%, contain N11%), (Repone K contains K to Repone K: 125kg
2O 60%).Above raw material is added in the asymmetric double spiral mixer, fully behind the mixing, add organic compound fertilizer pelletizing adhesive CF2 (mother liquor again; solid content 10%) 10kg; fully behind the mixing, send into granulation in the rotary drum granulator, enter rotary drying drum then with rotary conveyor.Dry back is by the trommel screen screening, returns granulation more after crushed less than 1mm with greater than the material of 5mm.
2) preparation of organic and inorganic compound slow release fertilizer
(1) organic-inorganic compound mixed fertilizer coating
Select the mixed organic manure of diameter 1～5mm, slowly send into rotation coating cylinder with rotary conveyor.Drum diameter 1500mm, long 8000mm is divided into two sections, and preceding half section is the coating chamber, second half section is the face powder kiln, and the 4000mm place is welded with a semicircle baffle in the middle of inwall, and high 100mm, inwall also are welded with 12 row's material lifting flightss, the long 300mm of material lifting flights, high 150mm is staggered.Coating tube feeding end puts in one and sprays coating agent pipe, long 800mm, diameter are the 25mm stainless steel tube, 2 shower nozzles are installed at the pipe two ends, nozzle bore 10 μ m, coating coating cementing agent (waste plastic-starch mixes the polymers adhesive coating agent, clay-polyester mixes polymers adhesive coating agent, sulfonated lignin adhesive coating agent, the mixed polymers adhesive coating agent of humic acids): 20kg (mother liquor, solid content 20%) behind 5 times of the dilute with waters by in pressure pump (pressure is greater than the 0.4Mpa) ascending pipe, be vaporific sprinkling.The organic-inorganic compound mixed fertilizer rounded grain rotates in rotor on one side and raises up, and sprays vaporific coating cementing agent on one side, to fertiliser granulates surperficial complete moistening till.
(2) face powder is dry
Compound fertilizer behind the coating enters the face powder chamber by middle baffle, and applying medicinal powder feeds the face powder chamber for pulverizing the talcum powder 10kg that 200 mesh sieve holes (sieve diameter 0.074mm) are crossed in the back through the face powder pipe.Moistening fertiliser granulates rotates on one side, raises up and rolls, Yi Bian be stained with one deck talcum powder.Hot blast feeds the heating duct of rotation coating cylinder bottom, about 80 ℃-100 ℃ of wind-warm syndrome, and the fertiliser granulates behind the coating face powder flows out the coating tube after warm air drying, the dry sclerosis in surface this moment.
(3) packing of sieving
Two sections of vibrosieves, first section is the 1mm sieve aperture, and second section is the 3mm sieve aperture, and the rounded grain slow release fertilizer of diameter 1～3mm and 3～5mm packs respectively, returns granulation again less than the powder of 1mm.
Embodiment two
Take by weighing organic materials---weathered coal, count with butt: 412kg, add urea: 286.3kg (urea contains N46%) in addition, (monoammonium phosphate contains P to monoammonium phosphate: 166.7kg
2O
545%, contain N 11%), (Repone K contains K to Repone K: 125kg
2O 60%).Above raw material is added in the asymmetric double spiral mixer, fully behind the mixing, add organic compound fertilizer pelletizing adhesive CF2 (mother liquor again; solid content 10%) 10kg; fully behind the mixing, send into granulation in the rotary drum granulator, enter rotary drying drum then with rotary conveyor.Dry back is by the trommel screen screening, returns granulation more after crushed less than 1mm with greater than the material of 5mm.
Other production processes and condition are with embodiment 1.
Embodiment three
In the production process of embodiment one and embodiment two, replace wherein waste plastic-starch to mix the polymers adhesive coating agent with the clay of same amount-polyester mixed polymer adhesive coating agent and use as the fertile coating of compound, other production processes and condition are constant.
Embodiment four
In the production process of embodiment one and embodiment two, replace wherein waste plastic-starch to mix the polymers adhesive coating agent with the sulfonated lignin adhesive coating agent of same amount and use as the fertile coating of compound, other production processes and condition are constant.
Embodiment five
In the production process of embodiment one and embodiment two, replace waste plastic-starch wherein to mix the polymers adhesive coating agent as the fertile coating use of compound with the mixed polymers adhesive coating agent of the humic acids of same amount, other production processes and condition are constant.
Claims (5)
1. method for producing organic and inorganic compound slow release fertilizer, it is characterized in that organic materials behind the fermentation maturity or the weathered coal behind crushing screening are mixed with nitrogen, phosphorus, potassium fertilizer in proportion, add adhesive for granulating CF2 used in the present invention, adopt the production of compound fertilizer general-purpose equipment, by granulation, drying, screening, obtain rounded grain shape organic-inorganic compound mixed fertilizer; Slowly add in the special-purpose rotation coating cylinder provided by the present invention above particle is fertile, spray the coating cementing agent aqueous solution of dilution, use the talcum powder face powder and through warm air drying to particle surface.
2. method for producing organic and inorganic compound slow release fertilizer as claimed in claim 1, it is characterized in that using waste plastic-starch coating cementing agent in special use rotation coating cylinder with rounded grain organic-inorganic compound mixed fertilizer coating, coating cementing agent mother liquor usage quantity is the 1%-3% of the fertile butt quality of compound.
3. as claim 1,2 described method for producing organic and inorganic compound slow release fertilizer, it is characterized in that the clay-polyester mixed polymer adhesive coating agent with same amount replaces the mixed polymers adhesive coating agent of waste plastic-starch to use as coating.
4. as claim 1,2 described method for producing organic and inorganic compound slow release fertilizer, it is characterized in that replacing the mixed polymers adhesive coating agent of waste plastic-starch to use as coating with the sulfonated lignin adhesive coating agent of same amount.
5. as claim 1,2 described method for producing organic and inorganic compound slow release fertilizer, it is characterized in that replacing waste plastic-starch to mix the polymers adhesive coating agent with the mixed polymers adhesive coating agent of the humic acids of same amount uses as coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410078164 CN1603286A (en) | 2004-09-20 | 2004-09-20 | Method for producing organic and inorganic compound slow release fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410078164 CN1603286A (en) | 2004-09-20 | 2004-09-20 | Method for producing organic and inorganic compound slow release fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1603286A true CN1603286A (en) | 2005-04-06 |
Family
ID=34666931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410078164 Pending CN1603286A (en) | 2004-09-20 | 2004-09-20 | Method for producing organic and inorganic compound slow release fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1603286A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870625A (en) * | 2010-06-12 | 2010-10-27 | 邹立基 | Method for wrapping fertilizer in soil granules and compound fertilizer prepared therefrom |
| CN101885633A (en) * | 2009-05-12 | 2010-11-17 | 李振永 | Special peanut film-coating slow-release fertilizer and preparation process thereof |
| CN101891564A (en) * | 2010-05-07 | 2010-11-24 | 四川师范大学 | Method for preparing biological compound fertilizer |
| CN101357867B (en) * | 2008-08-28 | 2011-05-11 | 山东金正大生态工程股份有限公司 | Humic acid membrane wrapping control-releasing fertilizer |
| CN101337841B (en) * | 2008-08-11 | 2011-11-23 | 新疆山川秀丽生物有限公司 | Method for producing microbe fertilizer of cotton stalk |
| CN102408263A (en) * | 2011-08-19 | 2012-04-11 | 安徽统益生物科技有限公司 | Preparation method of organic-inorganic compound fertilizer |
| CN102515950A (en) * | 2011-12-09 | 2012-06-27 | 山东省农业可持续发展研究所 | Mid-low yield field alfalfa special-purposed fertilizer, preparation method thereof, and application method thereof |
| CN102786366A (en) * | 2012-07-26 | 2012-11-21 | 徐州市芭田生态有限公司 | Endoplasmic slow release composite fertilizer and its preparation method |
| CN103772005A (en) * | 2013-12-20 | 2014-05-07 | 当涂县科辉商贸有限公司 | Fertilizer prepared by fermenting chicken manure and preparation method thereof |
| CN103819269A (en) * | 2014-02-20 | 2014-05-28 | 中国科学院烟台海岸带研究所 | Slow release method using organic clay as matrix |
| CN106007954A (en) * | 2016-05-20 | 2016-10-12 | 太仓市雅丰农场专业合作社 | Organic-inorganic controlled-release fertilizer special for paddy rice and preparation method thereof |
| CN106396875A (en) * | 2016-08-29 | 2017-02-15 | 贵阳开磷化肥有限公司 | Controlled release fertilizer used for orchid plantation, and preparation method thereof |
| CN107382481A (en) * | 2017-08-01 | 2017-11-24 | 兴化市全微植物营养科技有限公司 | A kind of preparation technology of moderate-element fertilizer |
| CN108586052A (en) * | 2018-06-06 | 2018-09-28 | 安徽永豪日用品有限公司 | A kind of preparation method of waste plastic particle production sustained release fertilizers for potted flowers |
| CN108929168A (en) * | 2018-08-29 | 2018-12-04 | 吉林市金穗肥业有限公司 | A kind of organic-inorganic compound fertilizer and preparation method thereof |
| CN110304956A (en) * | 2019-05-22 | 2019-10-08 | 淮安市博彦土木工程科学研究院有限公司 | A kind of preparation method of coating method granulating planting soil |
-
2004
- 2004-09-20 CN CN 200410078164 patent/CN1603286A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337841B (en) * | 2008-08-11 | 2011-11-23 | 新疆山川秀丽生物有限公司 | Method for producing microbe fertilizer of cotton stalk |
| CN101357867B (en) * | 2008-08-28 | 2011-05-11 | 山东金正大生态工程股份有限公司 | Humic acid membrane wrapping control-releasing fertilizer |
| CN101885633A (en) * | 2009-05-12 | 2010-11-17 | 李振永 | Special peanut film-coating slow-release fertilizer and preparation process thereof |
| CN101891564A (en) * | 2010-05-07 | 2010-11-24 | 四川师范大学 | Method for preparing biological compound fertilizer |
| CN101870625B (en) * | 2010-06-12 | 2012-10-24 | 邹立基 | Method for wrapping fertilizer in soil granules and compound fertilizer prepared therefrom |
| CN101870625A (en) * | 2010-06-12 | 2010-10-27 | 邹立基 | Method for wrapping fertilizer in soil granules and compound fertilizer prepared therefrom |
| CN102408263A (en) * | 2011-08-19 | 2012-04-11 | 安徽统益生物科技有限公司 | Preparation method of organic-inorganic compound fertilizer |
| CN102515950A (en) * | 2011-12-09 | 2012-06-27 | 山东省农业可持续发展研究所 | Mid-low yield field alfalfa special-purposed fertilizer, preparation method thereof, and application method thereof |
| CN102515950B (en) * | 2011-12-09 | 2013-06-05 | 山东省农业可持续发展研究所 | Mid-low yield field alfalfa special-purposed fertilizer, preparation method thereof, and application method thereof |
| CN102786366B (en) * | 2012-07-26 | 2015-05-13 | 徐州市芭田生态有限公司 | Endoplasmic slow release composite fertilizer and its preparation method |
| CN102786366A (en) * | 2012-07-26 | 2012-11-21 | 徐州市芭田生态有限公司 | Endoplasmic slow release composite fertilizer and its preparation method |
| CN103772005A (en) * | 2013-12-20 | 2014-05-07 | 当涂县科辉商贸有限公司 | Fertilizer prepared by fermenting chicken manure and preparation method thereof |
| CN103819269A (en) * | 2014-02-20 | 2014-05-28 | 中国科学院烟台海岸带研究所 | Slow release method using organic clay as matrix |
| CN103819269B (en) * | 2014-02-20 | 2016-01-13 | 中国科学院烟台海岸带研究所 | A kind of take organic clay as the release method of matrix |
| CN106007954A (en) * | 2016-05-20 | 2016-10-12 | 太仓市雅丰农场专业合作社 | Organic-inorganic controlled-release fertilizer special for paddy rice and preparation method thereof |
| CN106396875A (en) * | 2016-08-29 | 2017-02-15 | 贵阳开磷化肥有限公司 | Controlled release fertilizer used for orchid plantation, and preparation method thereof |
| CN106396875B (en) * | 2016-08-29 | 2019-12-03 | 贵阳开磷化肥有限公司 | A kind of Orchis planting Controlled Release Fertilizer preparation method |
| CN107382481A (en) * | 2017-08-01 | 2017-11-24 | 兴化市全微植物营养科技有限公司 | A kind of preparation technology of moderate-element fertilizer |
| CN108586052A (en) * | 2018-06-06 | 2018-09-28 | 安徽永豪日用品有限公司 | A kind of preparation method of waste plastic particle production sustained release fertilizers for potted flowers |
| CN108929168A (en) * | 2018-08-29 | 2018-12-04 | 吉林市金穗肥业有限公司 | A kind of organic-inorganic compound fertilizer and preparation method thereof |
| CN110304956A (en) * | 2019-05-22 | 2019-10-08 | 淮安市博彦土木工程科学研究院有限公司 | A kind of preparation method of coating method granulating planting soil |
| CN110304956B (en) * | 2019-05-22 | 2021-09-24 | 淮安市博彦土木工程科学研究院有限公司 | Preparation method of granulated planting soil by coating method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1603286A (en) | Method for producing organic and inorganic compound slow release fertilizer | |
| CN102219604B (en) | Rice charcoal slow-release fertilizer and preparation method thereof | |
| CN100363310C (en) | Method for producing mixed high-concentration slow-release fertilizer | |
| CN100436381C (en) | Production process of slowly/controlled releasing fertilizer for winter wheat | |
| CN1300068C (en) | Whole nutrient solid fertilizer for drip irrigation and its prepn | |
| CN103787798A (en) | Long-acting synergistic controlled release fertilizer | |
| CN102838413A (en) | Ternary slow-release compound fertilizer and preparation method thereof | |
| CN1213001C (en) | Method of producing granular composite fertilizer using high tower pellatizer and equipment | |
| CN102079669B (en) | Efficient organic compound fertilizer and preparation method | |
| CN103880535A (en) | Preparation method of slow-release compound fertilizer | |
| CN101054323A (en) | Special release control composite fertilizer for cole and preparation method thereof | |
| CN105481555A (en) | Biological organic-inorganic loss-controlled fertilizer with core-shell structure | |
| CN102173962A (en) | Built-in screen type controlled-release urea as well as production method and application thereof | |
| CN101456771B (en) | Novel organic fertilizer and preparation method thereof | |
| CN104326830A (en) | Organic-inorganic compound fertilizer and preparation method thereof | |
| CN105347983A (en) | Special super-large-granule humic acid fertilizer for fruit trees and preparation method of special super-large-granule humic acid fertilizer | |
| CN105646107A (en) | Controlled-released fertilizer preparation method and commercial crop controlled-released fertilizer prepared according to controlled-released fertilizer preparation method | |
| CN1884223A (en) | Dedicated release-controlled compound fertilizer for double-season early rice and late rice and method for preparing same | |
| CN105418249A (en) | Production method for preparing microbial compound fertilizer layer by layer and equipment used by production method | |
| CN103193549A (en) | Degradable resin envelop slow-control fertilizer-releasing production process | |
| CN103130566B (en) | Adjustable slow release BB fertilizer special for applying for cucumber and preparation method of adjustable slow release BB fertilizer | |
| CN106431612A (en) | Preparation method of controlled release fertilizer for aquatic crops | |
| CN103936521B (en) | A kind of composite fertilizer and preparation method thereof | |
| CN1746138A (en) | Production of long-effective ammonium bicarbonate composite fertilizer of vegetable | |
| CN1226240C (en) | Process for producing organic compound fertilizer using papermaking waster liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |