CN113083144A - Novel quantitative bacterium adding method for organic fertilizer-in-oil - Google Patents
Novel quantitative bacterium adding method for organic fertilizer-in-oil Download PDFInfo
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- CN113083144A CN113083144A CN202110438487.1A CN202110438487A CN113083144A CN 113083144 A CN113083144 A CN 113083144A CN 202110438487 A CN202110438487 A CN 202110438487A CN 113083144 A CN113083144 A CN 113083144A
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- oil
- stirring
- microbial inoculum
- agitator
- heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/714—Feed mechanisms for feeding predetermined amounts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
- B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
- B01F35/411—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting only one extremity of the shaft
- B01F35/4111—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting only one extremity of the shaft at the top of the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
- B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
- B01F35/411—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting only one extremity of the shaft
- B01F35/4112—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting only one extremity of the shaft at the bottom of the receptacle, e.g. by studs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/93—Heating or cooling systems arranged inside the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F2035/99—Heating
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to the technical field of oil-in-oil quantitative bacterium adding, and discloses a novel organic fertilizer oil-in-oil quantitative bacterium adding method, which comprises the following steps: s1, pumping the vegetable raw oil into the stirring barrel from the raw material barrel by using the first pumping pump; s2, quantitatively adding the calculated microbial inoculum to be added into a stirring barrel by using a constant-speed feeding device; s3, uniformly stirring the vegetable raw oil and the quantitatively added microbial inoculum by using a first stirring mechanism in a stirring barrel; and S4, controlling the temperature of the heating tank not to exceed the temperature by using an electric heating plate electric heating mode, and simultaneously fully mixing and heating the raw oil and the microbial inoculum by using a second stirring mechanism in the heating tank. The invention dissolves the added microbial inoculum in the vegetable raw oil used for oil coating in a stirring way. The yield of the drying cylinder per unit time, the effective viable count of the added microbial inoculum, and the flow of the vegetal raw oil sprayed into the drying cylinder are calculated, and the microbial inoculum is accurately added by using a constant-speed feeding device.
Description
Technical Field
The invention relates to the technical field of oil-in-oil quantitative bacterium adding, in particular to a novel organic fertilizer oil-in-oil quantitative bacterium adding method.
Background
The oil-coated particles produced by the existing organic fertilizer lack a quantitative bacterium adding technology. Therefore, the oil-coated particles do not reach the effective viable count specified in the relevant. Therefore, a method for quantitatively adding bacteria to the organic fertilizer-coated oil is urgently needed.
Disclosure of Invention
The invention aims to provide a novel quantitative bacterium adding method for organic fertilizer-coated oil.
In order to achieve the purpose, the invention provides the following technical scheme: a novel quantitative bacterium adding method for organic fertilizer-in-oil comprises the following steps:
s1, pumping the vegetable raw oil into the stirring barrel from the raw material barrel by using the first pumping pump;
s2, quantitatively adding the calculated microbial inoculum to be added into a stirring barrel by using a constant-speed feeding device;
s3, uniformly stirring the vegetable raw oil and the quantitatively added microbial inoculum by using a first stirring mechanism in a stirring barrel;
s4, controlling the temperature of the heating tank not to exceed the temperature by using an electric heating plate electric heating mode, and simultaneously fully mixing and heating the raw oil and the microbial inoculum by using a stirring mechanism II in the heating tank to form a microbial inoculum-plant raw oil mixed solution with a certain concentration;
s5, spraying the mixed liquid in the heating tank in the S4 into a drying cylinder through a discharge pipe III by using a material pumping pump III;
s6, fully combining the organic fertilizer particles in the drying cylinder with the sprayed mixed liquid in the S5 to ensure that the mixed liquid is uniformly coated on the surfaces of the particles.
Preferably, there is supporting platform one side of former storage bucket, pump one is installed at supporting platform top, the input and the inlet pipe one end intercommunication setting of discharge pump one, an inlet pipe other end and former storage bucket intercommunication set up, the output and the discharging pipe one end intercommunication setting of discharge pump one, inside the discharging pipe other end runs through the agitator and extends to the agitator.
Preferably, the inside rabbling mechanism that is provided with of agitator is one, the rabbling mechanism includes agitator motor one, bull stick one and puddler one, agitator motor installs at agitator inner wall top, the output at agitator motor one is installed through the shaft coupling to bull stick one, the puddler is installed at bull stick outer wall for one, constant speed feeding device installs at the agitator top.
Preferably, agitator one side is provided with supporting platform two, discharge pump two is installed at two tops of supporting platform, the input and the two one end intercommunications of inlet pipe of discharge pump two set up, the other end of inlet pipe two sets up with running through agitator and agitator intercommunication, the output and the two one end intercommunications of discharging pipe of discharge pump two set up, the one end of discharging pipe two runs through the heating bath and extends to the heating bath inside.
Preferably, the heating tank is internally provided with a stirring mechanism, the stirring mechanism II comprises a stirring motor II, a rotating rod II and a stirring rod II, the stirring motor II is installed at the bottom of the inner wall of the heating tank, the rotating rod II is fixedly installed at the output end of the stirring motor II through a coupler, and the stirring rod II is installed on the outer wall of the rotating rod II.
Preferably, the electric heating plate is arranged on the inner wall of the heating tank.
Preferably, the input of pump three sets up with three one end intercommunications of inlet pipe, the three other ends of inlet pipe run through inside the heating bath extends to the heating bath, the output of pump three sets up with three one end intercommunications of discharging pipe, the three other ends of discharging pipe run through inside the section of thick bamboo of drying extends to the section of thick bamboo of drying.
The invention provides a novel quantitative bacterium adding method for organic fertilizer-coated oil. The method has the following beneficial effects:
(1) the added microbial inoculum is dissolved in the vegetable raw oil used for oil coating in a stirring mode. The yield of the drying cylinder per unit time, the effective viable count of the added microbial inoculum, and the flow of the vegetal raw oil sprayed into the drying cylinder are calculated, and the microbial inoculum is accurately added by using a constant-speed feeding device.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1 raw material barrel, 2 pumping pump I, 211 feeding pipe I, 212 discharging pipe I, 3 stirring barrel, 4 stirring mechanism I, 411 stirring motor I, 412 rotating rod I, 413 stirring rod I, 5 electric heating plate, 6 heating tank, 7 stirring mechanism II, 711 stirring motor II, 712 rotating rod II, 713 stirring rod II, 8 pumping pump III, 811 feeding pipe III, 812 discharging pipe III, 9 drying barrel, 10 constant-speed feeding device, 11 pumping pump II, 1111 feeding pipe II, 1112 discharging pipe II, 12 supporting platform I and 13 supporting platform II.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a technical solution:
a novel quantitative bacterium adding method for organic fertilizer-in-oil comprises the following steps:
s1, pumping the vegetable raw oil from the raw material barrel 1 into the stirring barrel 3 by using the first pumping pump 2;
s2, quantitatively adding the calculated microbial inoculum to be added into the stirring barrel 3 by using the constant-speed feeding device 10;
s3, uniformly stirring the vegetable raw oil and the quantitatively added microbial inoculum by using a first stirring mechanism 4 in the stirring barrel 3;
s4, controlling the temperature of the heating tank 6 to be not more than 60 ℃ by using an electric heating mode of the electric heating plate 5, and simultaneously fully mixing and heating the raw oil and the microbial inoculum by using a second stirring mechanism 7 in the heating tank 6 to form a microbial inoculum-plant raw oil mixed solution with a certain concentration;
s5, spraying the mixed liquid in the heating tank 6 in the S4 into the drying cylinder 9 through a discharge pipe III 812 by using a material pumping pump III 8;
s6, the organic fertilizer particles in the drying cylinder 9 are fully combined with the mixed liquid sprayed in the S5, so that the mixed liquid is uniformly coated on the surfaces of the particles.
There is one 12 supporting platform in one side of former storage bucket 1, and one 2 fixed mounting of material pump is at one 12 tops of supporting platform, and the input of discharge pump one 2 sets up with one 211 one end intercommunication of inlet pipe, and the inlet pipe 211 other end sets up with 1 intercommunication of former storage bucket, and the output of discharge pump one 2 sets up with one 212 one end intercommunication of discharging pipe, and the discharging pipe 212 other end runs through the agitator 3 and extends to the agitator 3 inside. The inside rabbling mechanism 4 that is provided with of agitator 3, rabbling mechanism 4 include agitator motor 411, bull stick 412 and puddler 413, and agitator motor 411 is installed at 3 inner wall tops of agitator, and the output at agitator motor 411 is installed through the shaft coupling to bull stick 412, and the outer wall at bull stick 412 is installed to puddler 413, and constant speed feeding device 10 is installed at agitator 3 tops. 3 one side of agitator is provided with two 12 supporting platform, two 11 discharging pumps are installed at two 12 tops of supporting platform, two 11 input and two 1111 one ends of inlet pipe intercommunication settings of discharging pump, the other end of two 1111 inlet pipes with run through agitator 3 and 3 intercommunication settings of agitator, two 11 output and two 1112 one end intercommunication settings of discharging pipe of discharging pump, the one end of two 1112 discharging pipes runs through inside heating bath 6 extends to heating bath 6. The stirring mechanism 7 is arranged in the heating tank 6, the stirring mechanism 7 comprises a stirring motor II 711, a rotating rod II 712 and a stirring rod II 713, the stirring motor II 711 is arranged at the bottom of the inner wall of the heating tank 6, the rotating rod II 712 is fixedly arranged at the output end of the stirring motor II 711 through a coupler, and the stirring rod II 713 is arranged on the outer wall of the rotating rod II 712. The electric heating plate 5 is arranged on the inner wall of the heating groove 6. The input of three 8 of drawing material pump and the three 811 one end intercommunication of inlet pipe set up, and the three 811 other ends of inlet pipe run through inside heating bath 6 extends to heating bath 6, and the output of three 8 of drawing material pump and the three 812 one end intercommunication settings of discharging pipe, and the three 812 other ends of discharging pipe run through inside a stoving section of thick bamboo extends to a stoving section of thick bamboo.
In summary, the present invention can dissolve the added microbial inoculum into the vegetable raw oil for oil-coating by stirring. The yield of the drying cylinder per unit time, the effective viable count of the added microbial inoculum, and the flow of the vegetal raw oil sprayed into the drying cylinder are calculated, and the microbial inoculum is accurately added by using a constant-speed feeding device.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A novel quantitative bacterium adding method for organic fertilizer-in-oil is characterized by comprising the following steps: the method comprises the following steps:
s1, pumping the vegetable raw oil from the raw material barrel (1) into the stirring barrel (3) by using a first pumping pump (2);
s2, quantitatively adding the calculated microbial inoculum to be added into the stirring barrel (3) by using a constant-speed feeding device (10);
s3, uniformly stirring the vegetable raw oil and the quantitatively added microbial inoculum by using a first stirring mechanism (4) in a stirring barrel (3);
s4, controlling the temperature of the heating tank (6) to be not more than 60 ℃ by using an electric heating mode of the electric heating plate (5), and simultaneously fully mixing and heating the raw oil and the microbial inoculum by using a second stirring mechanism (7) in the heating tank (6) to form a microbial inoculum-plant raw oil mixed solution with a certain concentration;
s5, spraying the mixed liquid in the heating tank (6) in the S4 into a drying drum (9) through a discharge pipe III (812) by using a material pumping pump III (8);
s6, fully combining the organic fertilizer particles in the drying cylinder (9) with the sprayed mixed liquid in the S5 to ensure that the mixed liquid is uniformly coated on the surfaces of the particles.
2. The novel quantitative bacterium adding method for the organic fat-in-oil according to claim 1, which is characterized in that: there is supporting platform (12) one side of former storage bucket (1), install at supporting platform (12) top for material pump (2), the input and the inlet pipe (211) one end intercommunication setting of ejection of compact pump (2), the inlet pipe (211) other end sets up with former storage bucket (1) intercommunication, the output and the discharging pipe (212) one end intercommunication setting of ejection of compact pump (2), the discharging pipe (212) other end runs through agitator (3) and extends to agitator (3) inside.
3. The novel quantitative bacterium adding method for the organic fertilizer-coated oil as claimed in claim 2, which is characterized in that: stirring barrel (3) inside rabbling mechanism (4) of being provided with, rabbling mechanism (4) include agitator motor (411), bull stick (412) and puddler (413), agitator motor (411) are installed at stirring barrel (3) inner wall top, the output in agitator motor (411) is installed through the shaft coupling in bull stick (412), install at bull stick (412) outer wall in puddler (413), constant speed feeding device (10) are installed at stirring barrel (3) top.
4. The novel quantitative bacterium adding method for the organic fertilizer-coated oil as claimed in claim 3, which is characterized in that: agitator (3) one side is provided with supporting platform two (12), discharge pump two (11) are installed at supporting platform two (12) tops, the input and the inlet pipe two (1111) one end intercommunication setting of discharge pump two (11), the other end of inlet pipe two (1111) with run through agitator (3) and agitator (3) intercommunication setting, the output and the discharging pipe two (1112) one end intercommunication setting of discharge pump two (11), the one end of discharging pipe two (1112) is run through heating groove (6) and is extended to inside heating groove (6).
5. The novel quantitative bacterium adding method for the organic fat-in-oil according to claim 4, which is characterized in that: heating tank (6) inside rabbling mechanism (7) that is provided with, rabbling mechanism two (7) are including agitator motor two (711), bull stick two (712) and puddler two (713), agitator motor two (711) are installed in heating tank (6) inner wall bottom, bull stick two (712) are through shaft coupling fixed mounting at the output of agitator motor two (711), install at bull stick two (712) outer wall puddler two (713).
6. The novel quantitative bacterium adding method for the organic fat-in-oil according to claim 5, which is characterized in that: the electric heating plate (5) is arranged on the inner wall of the heating groove (6).
7. The novel quantitative bacterium adding method for the organic fat-in-oil according to claim 6, which is characterized in that: the input of three (8) of drawing material pump sets up with three (811) one end intercommunication of inlet pipe, the three (811) other ends of inlet pipe run through heating bath (6) and extend to inside heating bath (6), the output of three (8) of drawing material pump sets up with three (812) one end intercommunication of discharging pipe, the three (812) other ends of discharging pipe run through a stoving section of thick bamboo and extend to inside the stoving section of thick bamboo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110438487.1A CN113083144A (en) | 2021-04-22 | 2021-04-22 | Novel quantitative bacterium adding method for organic fertilizer-in-oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110438487.1A CN113083144A (en) | 2021-04-22 | 2021-04-22 | Novel quantitative bacterium adding method for organic fertilizer-in-oil |
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| CN113083144A true CN113083144A (en) | 2021-07-09 |
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| CN202110438487.1A Pending CN113083144A (en) | 2021-04-22 | 2021-04-22 | Novel quantitative bacterium adding method for organic fertilizer-in-oil |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6460290B1 (en) * | 1997-03-07 | 2002-10-08 | Robert A. Moore | Fully compatible surfactant-impregnated water-soluble fertilizer; concentrate; and use |
| CN101289347A (en) * | 2008-06-04 | 2008-10-22 | 尹明灯 | Coating and loss-controlling fertiliser and method for preparing same |
| CN107226753A (en) * | 2017-07-27 | 2017-10-03 | 合肥信文农业科技有限公司 | A kind of long-acting granular type organic fertilizer of decomposition of cellulose and preparation method thereof |
| CN107235780A (en) * | 2017-07-27 | 2017-10-10 | 合肥信文农业科技有限公司 | Long-acting organic fertilizer that a kind of vegetable cultivation seedling stage applies and preparation method thereof |
| CN109305832A (en) * | 2017-07-28 | 2019-02-05 | 贸凯国际股份有限公司 | Continous way organic fertilizer producing process |
| CN208599588U (en) * | 2018-07-25 | 2019-03-15 | 广州优卡思农业技术有限公司 | A kind of Water soluble fertilizer production unit equipment |
| CN110950719A (en) * | 2019-10-29 | 2020-04-03 | 北京城市排水集团有限责任公司 | Coated controlled release fertilizer and preparation method thereof |
-
2021
- 2021-04-22 CN CN202110438487.1A patent/CN113083144A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6460290B1 (en) * | 1997-03-07 | 2002-10-08 | Robert A. Moore | Fully compatible surfactant-impregnated water-soluble fertilizer; concentrate; and use |
| CN101289347A (en) * | 2008-06-04 | 2008-10-22 | 尹明灯 | Coating and loss-controlling fertiliser and method for preparing same |
| CN107226753A (en) * | 2017-07-27 | 2017-10-03 | 合肥信文农业科技有限公司 | A kind of long-acting granular type organic fertilizer of decomposition of cellulose and preparation method thereof |
| CN107235780A (en) * | 2017-07-27 | 2017-10-10 | 合肥信文农业科技有限公司 | Long-acting organic fertilizer that a kind of vegetable cultivation seedling stage applies and preparation method thereof |
| CN109305832A (en) * | 2017-07-28 | 2019-02-05 | 贸凯国际股份有限公司 | Continous way organic fertilizer producing process |
| CN208599588U (en) * | 2018-07-25 | 2019-03-15 | 广州优卡思农业技术有限公司 | A kind of Water soluble fertilizer production unit equipment |
| CN110950719A (en) * | 2019-10-29 | 2020-04-03 | 北京城市排水集团有限责任公司 | Coated controlled release fertilizer and preparation method thereof |
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