CN114702344B - Compound fertilizer and preparation process thereof - Google Patents
Compound fertilizer and preparation process thereof Download PDFInfo
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- CN114702344B CN114702344B CN202210491279.2A CN202210491279A CN114702344B CN 114702344 B CN114702344 B CN 114702344B CN 202210491279 A CN202210491279 A CN 202210491279A CN 114702344 B CN114702344 B CN 114702344B
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
- C05F17/964—Constructional parts, e.g. floors, covers or doors
- C05F17/971—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The invention relates to the field of compound fertilizer preparation, in particular to a compound fertilizer and a preparation process thereof. The process comprises the following steps: s1: mixing human and animal excreta, straw, sawdust and rice bran, sealing and fermenting to form a fermented material; s2: mixing ammonium dihydrogen phosphate, urea and potassium sulfate, and adding the mixture into a spraying device; s3: spraying ammonium dihydrogen phosphate, urea and potassium sulfate on the fermentation material by a spraying device, and continuously stirring the fermentation material in the spraying process; s4: and stirring the ammonium dihydrogen phosphate, the urea and the potassium sulfate with the fermentation material again. The sealing fermentation time in the S1 is 21 days. The human and animal manure is chicken manure and human manure, and the weight ratio of the chicken manure to the human manure is 4. Ammonium dihydrogen phosphate, urea and potassium sulfate can be sprinkled on the fermentation material through a sprinkling device, so that the ammonium dihydrogen phosphate, the urea and the potassium sulfate can be more easily mixed into human and animal excreta, straws, sawdust and bran coats.
Description
Technical Field
The invention relates to the field of compound fertilizer preparation, in particular to a compound fertilizer and a preparation process thereof.
Background
The compound fertilizer is a chemical fertilizer containing two or more nutrient elements, and has important functions of balancing fertilization, improving the utilization rate of the fertilizer and promoting the high yield of crops. The compound fertilizer has the advantages of few side components and good physical properties. However, when ammonium dihydrogen phosphate, urea and potassium sulfate are directly mixed with human and animal excreta, straw, sawdust and rice bran, the ammonium dihydrogen phosphate, urea and potassium sulfate are easily aggregated and agglomerated and are not easily mixed into human and animal excreta, straw, sawdust and rice bran.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the compound fertilizer and the preparation process thereof, and the compound fertilizer has the beneficial effects that ammonium dihydrogen phosphate, urea and potassium sulfate can be sprayed on a fermentation material through a spraying device, so that the ammonium dihydrogen phosphate, the urea and the potassium sulfate can be more easily mixed into human and animal excreta, straws, sawdust and bran coats.
A preparation process of a compound fertilizer comprises the following steps:
s1: mixing human and animal excreta, straw, sawdust and bran coat, sealing and fermenting to form a fermented material;
s2: mixing ammonium dihydrogen phosphate, urea and potassium sulfate, and adding the mixture into a spraying device;
s3: spraying ammonium dihydrogen phosphate, urea and potassium sulfate on the fermentation material by a spraying device, and continuously stirring the fermentation material in the spraying process;
s4: and stirring the ammonium dihydrogen phosphate, the urea and the potassium sulfate with the fermentation material again.
The sealed fermentation time in the S1 is 21 days.
The human and animal manure is chicken manure and human manure, and the weight ratio of the chicken manure to the human manure is 4.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a flow chart of a compound fertilizer and a preparation process thereof;
FIG. 2 is a first schematic structural view of a material sprinkling device;
FIG. 3 is a second schematic structural view of a material sprinkling device;
FIG. 4 is a third schematic structural view of a material sprinkling device;
FIG. 5 is a first schematic structural view of a hopper;
FIG. 6 is a second schematic structural view of the sprinkling hopper;
FIG. 7 is a first schematic structural view of the dome;
FIG. 8 is a second schematic view of the dome;
FIG. 9 is a first schematic structural view of a bar and a slip ring;
FIG. 10 is a second schematic view of the bar and slip ring configuration;
FIG. 11 is a first schematic view of a flat bar;
fig. 12 is a second structural diagram of a flat bar.
In the figure: a sprinkling hopper 101; a sprinkler hole 102; a pull cord 103; a stop 104; a convex circle 105;
a dome 201; a cylinder 202; a cross 203; a stirring rod 204; a stiff spring 205; a sphere 206; a rim 207; a connecting cylinder 208;
a bar 301; a strip groove 302; a bent rod 303; an electric telescopic rod 304; a slide bar 305; a rack 306; a track rod 307; a round bar 308; a translation stage 309; a boss 310;
a slip ring 401; a gear 402; a fixed shaft 403; a vertical rod 404; a bottom beam 405;
a flat bar 501; a stop post 502; a rotating rod 503; a bracket 504; a V-shaped member 505; a motor 506; a baffle ring 507; a top shaft 508.
Detailed Description
A preparation process of a compound fertilizer comprises the following steps:
s1: mixing human and animal excreta, straw, sawdust and bran coat, sealing and fermenting to form a fermented material;
s2: mixing ammonium dihydrogen phosphate, urea and potassium sulfate, and adding the mixture into a spraying device;
s3: spraying ammonium dihydrogen phosphate, urea and potassium sulfate on the fermentation material by a spraying device, and continuously stirring the fermentation material in the spraying process;
s4: and stirring the ammonium dihydrogen phosphate, the urea and the potassium sulfate with the fermentation material again.
The sealing fermentation time in the S1 is 21 days.
The human and animal manure is chicken manure and human manure, and the weight ratio of the chicken manure to the human manure is 4.
As shown in fig. 5 to 6, this example can achieve the effect that ammonium dihydrogen phosphate, urea and potassium sulfate are more easily mixed into human and animal excreta, straw, sawdust and chaff.
Because the sprinkling device comprises the sprinkling hopper 101 and the sprinkling holes 102, the lower end of the sprinkling hopper 101 is conical, the sprinkling holes 102 are annularly arranged at the conical part of the lower end of the sprinkling hopper 101, after ammonium dihydrogen phosphate, urea and potassium sulfate are placed into the sprinkling hopper 101, the sprinkling hopper 101 is continuously shaken, at the moment, the ammonium dihydrogen phosphate, the urea and the potassium sulfate can be uniformly sprinkled from the sprinkling holes 102, and then the ammonium dihydrogen phosphate, the urea and the potassium sulfate are sprinkled on fermentation materials through the sprinkling device, so that the ammonium dihydrogen phosphate, the urea and the potassium sulfate are more easily mixed into human and animal excreta, straws, sawdust and rice bran, the fermentation materials are continuously turned in the sprinkling process, and the ammonium dihydrogen phosphate, the urea and the potassium sulfate are more favorably mixed into the fermentation materials.
As shown in fig. 7 to 8, this example can achieve the effect of preventing the fertilizer from being scattered from above the scattering hopper 101 when the scattering hopper 101 is shaken.
Because the material scattering device further comprises a circular cover 201, a cylinder 202 and a ring edge 207, the cylinder 202 is welded on the upper side of the circular cover 201, the ring edge 207 is integrally formed on the edge of the lower side of the circular cover 201, the circular cover 201 covers the upper side of the scattering hopper 101, the circular cover 201 is further arranged on the upper side of the scattering hopper 101 in a blocking mode, fertilizers are prevented from being scattered from the upper side of the scattering hopper 101 when the scattering hopper 101 shakes, the ring edge 207 on the lower side of the circular cover 201 can be limited, and the circular cover 201 is prevented from being separated from the scattering hopper 101 when the circular cover 201 translates on the scattering hopper 101. Cylinder 202 is used to add monoammonium phosphate, urea and potassium sulfate to the interior of hopper 101.
As shown in FIGS. 7 to 8, this example can achieve the effect of preventing caking of ammonium dihydrogen phosphate, urea and potassium sulfate, and preventing spillage.
Because spill the material device and still include cross 203 and stirring rod 204, cross 203 welds the downside at drum 202, a plurality of stirring rods 204 all weld the downside at cross 203, cross 203's effect is a plurality of stirring rods 204 of support, when the upper side translation of dome 201 at spilling hopper 101, drive a plurality of stirring rods 204 on cross 203 and remove in spilling hopper 101, and then to spilling ammonium dihydrogen phosphate in the hopper 101, urea and potassium sulfate stir, prevent ammonium dihydrogen phosphate, difficult spilling after urea and the potassium sulfate caking.
As shown in fig. 5-8, this example can achieve the effect of preventing the dome 201 from coming off the hopper 101.
Because spill the material device and still include stay cord 103, stop 104, protruding circle 105 and connecting cylinder 208, protruding circle 105 welds in the downside center of spilling hopper 101, stay cord 103 passes protruding circle 105, stay cord 103 can reciprocate relatively protruding circle 105, the lower extreme of stay cord 103 bonds and has stop 104, compression spring's both ends weld respectively on protruding circle 105 and stop 104, the downside center welding of cross 203 has connecting cylinder 208, the upper end of stay cord 103 bonds on connecting cylinder 208, compression spring gives the downward power of stop 104, make stop 104 stimulate stay cord 103 downwards, and then stimulate dome 201 through stay cord 103 and paste the upside at spilling hopper 101, prevent that dome 201 from breaking away from spilling hopper 101. And as the dome 201 translates relative to the hopper 101, the dome 201 pulls on the pull cord 103, which compresses the compression spring by moving the pull cord 103 upward relative to the bead 105, which then assists in moving the pull cord 103 downward relative to the bead 105 back to its original position, at which time the dome 201 also returns to its original position.
As shown in fig. 7-8, this example can achieve the effect of causing the plurality of stirring rods 204 to more irregularly stir the fertilizer material within the hopper 101.
Because spill the material device and still include hard spring 205 and ball 206, the periphery of dome 201 is the annular welding and has a plurality of hard springs 205, the lower extreme of a plurality of hard springs 205 all has ball 206, when constantly the level rocks and spills hopper 101 and spill the material, dome 201 constantly spills hopper 101 translation relatively because inertia, when dome 201 splashes hopper 101 translation relatively through a plurality of stirring rods 204 on it stir the fertilizer in spilling hopper 101, prevent to spill the fertilizer caking in the hopper 101, and when dome 201 takes place the translation to rock for dome 101 relatively, a plurality of balls 206 can rock through a plurality of hard springs 205, help dome 201 more irregularly spill hopper 101 translation relatively through the inertia of a plurality of balls 206, make a plurality of stirring rods 204 stir the fertilizer raw materials in the hopper 101 irregularly more.
This example can achieve the effect of erecting hopper 101, as shown in fig. 9-10.
As the sprinkling device further comprises a sliding ring 401 and upright rods 404, the upright rods 404 are welded at the left end and the right end of the upper side of the sliding ring 401, the upper parts of the two upright rods 404 are respectively welded at the left side and the right side of the sprinkling hopper 101, and the sprinkling hopper 101 is supported by the sliding ring 401 and the two upright rods 404 to erect the sprinkling hopper 101.
Spill material device and still include barred 301, bar groove 302 and knee 303, set up about two barred 301, all be connected through knee 303 between the front and back both ends of two barred 301, all be provided with bar groove 302 on the opposite face of two barred 301, the both ends of sliding ring 401 are inserted respectively on two bar grooves 302.
As shown in FIGS. 9-10, this example can achieve the effect of spraying ammonium dihydrogen phosphate, urea and potassium sulfate to different locations via a spray hopper 101.
The slip ring 401 can slide between two bar-shaped grooves 302 along the direction of two bars 301, and then drives the direction removal of spilling hopper 101 along two bars 301, and then spills ammonium dihydrogen phosphate, urea and potassium sulfate to different positions through spilling hopper 101.
The material sprinkling device further comprises a track rod 307, a translation seat 309, a fixed shaft 403 and a bottom beam 405, the track rod 307 is welded on the right-side bar rod 301, the right part of the translation seat 309 is inserted on the track rod 307 in a clearance fit mode, the bottom beam 405 is welded on the lower side of the sliding ring 401, the fixed shaft 403 is welded in the middle of the lower side of the bottom beam 405, and the fixed shaft 403 is inserted in the left part of the translation seat 309 in a clearance fit mode.
As shown in fig. 9-10, this example can achieve the effect of driving the slip ring 401 and the two uprights 404 to slide between the two bars 301.
The translation base 309 can move back and forth at the track rod 307, and then drives the fixed shaft 403 and the bottom beam 405 to move back and forth, and further drives the slip ring 401 and the two vertical rods 404 to slide between the two bars 301.
The material scattering device further comprises an electric telescopic rod 304, a sliding rod 305, a rack 306, a boss 310 and a gear 402, wherein the gear 402 is welded on the lower side of a fixed shaft 403, the boss 310 is welded on the strip 301 on the left side, the sliding rod 305 is inserted on the boss 310 in a clearance fit mode in the left-right direction, the rack 306 is welded at the right end of the sliding rod 305, the rack 306 is located on the left side of the gear 402, the electric telescopic rod 304 is fixed on the boss 310 through a flange, and the left end of the electric telescopic rod 304 is connected to the left end of the sliding rod 305 through a flange.
As shown in fig. 9-10, this example can achieve the effect of spreading the material by centrifugal force to a larger range of locations.
When the electric telescopic rod 304 is shortened, the sliding rod 305 is driven to move rightwards relative to the convex seat 310, so that the rack 306 is meshed with the gear 402, when the translation seat 309 drives the fixed shaft 403 to move forwards and backwards, the rack 306 at the lower end of the fixed shaft 403 rolls on the rack 306, at this time, the fixed shaft 403 is driven to rotate when moving forwards and backwards, further, when the material is sprayed by the front and back movement of the material spraying hopper 101, the material is sprayed by the self-rotation, and further, the material is sprayed to a position with a larger range through centrifugal force.
The material sprinkling device further comprises a round rod 308, a flat rod 501, blocking columns 502, a rotating rod 503, a support 504, a V-shaped part 505, a motor 506, blocking rings 507 and a top shaft 508, the round rod 308 is welded on the right side of the translation seat 309, the lower portion of the support 504 is welded on the track rod 307, the motor 506 is connected to the upper portion of the support 504 through screws, the V-shaped part 505 is welded on an output shaft of the motor 506, the round rod 308 is inserted into the range of the V-shaped part 505, the top shaft 508 is welded on the upper side of the support 504, the top shaft 508 is inserted into the middle of the flat rod 501 in a clearance fit mode, the two blocking rings 507 are fixedly connected to the top shaft 508, the two blocking rings 507 are respectively located on two sides of the flat rod 501, the rotating rod 503 is welded on the upper end of the top shaft 508, the two blocking columns 502 are welded on the upper side of the flat rod 501, the two blocking columns 502 are respectively located on two sides of the top shaft 508, and a plurality of screw insertion holes are formed in the flat rod 501.
As shown in fig. 11 to 12, this example can achieve the effect of driving the sprinkling hopper 101 to move forwards and backwards continuously.
When the material sprinkling machine is used, the flat rod 501 can be fixed on the upper side of a container for containing human and animal excrement, straws, sawdust and bran coats through screws, then the motor 506 continuously drives the V-shaped piece 505 to rotate in the forward and reverse directions, then the top shaft 508 is continuously stirred through the V-shaped piece 505 to move back and forth, then the translation seat 309 is driven to move back and forth, and finally the material sprinkling hopper 101 is driven to continuously move back and forth to spill materials. The top shaft 508 can rotate on the flat rod 501 with the axis of the top shaft 508 as an axis, so that the sprinkling hopper 101 is driven to rotate and sprinkle materials with the axis of the top shaft 508 as an axis, the two blocking columns 502 are respectively blocked at two sides of the rotating rod 503, the rotating angle of the rotating rod 503 is prevented from being too large, and the sprinkling hopper 101 is prevented from rotating an excessive distance with the axis of the top shaft 508.
A compound fertilizer prepared by a compound fertilizer preparation process comprises the following raw materials in parts by weight: 12 parts of human and animal excrement, 12 parts of straw, 8 parts of sawdust, 7 parts of rice bran, 11 parts of ammonium dihydrogen phosphate, 9 parts of urea and 5 parts of potassium sulfate.
Claims (5)
1. A preparation process of a compound fertilizer is characterized by comprising the following steps:
s1: mixing human and animal excreta, straw, sawdust and bran coat, sealing and fermenting to form a fermented material;
s2: mixing ammonium dihydrogen phosphate, urea and potassium sulfate, and adding the mixture into a spraying device;
s3: spraying ammonium dihydrogen phosphate, urea and potassium sulfate on the fermentation material by a spraying device, and continuously stirring the fermentation material in the spraying process;
s4: stirring ammonium dihydrogen phosphate, urea, potassium sulfate and the fermentation material together again;
the material sprinkling device comprises a sprinkling hopper (101) and sprinkling holes (102), the lower end of the sprinkling hopper (101) is conical, and the conical part of the lower end of the sprinkling hopper (101) is annularly provided with a plurality of sprinkling holes (102);
the material sprinkling device further comprises a round cover (201), a cylinder (202) and a ring edge (207), the cylinder (202) is arranged on the upper side of the round cover (201), the ring edge (207) is arranged on the edge of the lower side of the round cover (201), and the round cover (201) covers the upper side of the sprinkling hopper (101);
the material sprinkling device also comprises a cross (203) and stirring rods (204), the cross (203) is fixedly connected to the lower side of the cylinder (202), and a plurality of stirring rods (204) are arranged on the lower side of the cross (203);
the sprinkling device further comprises a pull rope (103), a stop head (104), a convex circle (105) and a connecting cylinder (208), the convex circle (105) is arranged at the center of the lower side of the sprinkling hopper (101), the pull rope (103) penetrates through the convex circle (105), the stop head (104) is fixedly connected to the lower end of the pull rope (103), two ends of a compression spring are respectively fixed to the convex circle (105) and the stop head (104), the compression spring is sleeved on the lower portion of the pull rope (103), the connecting cylinder (208) is arranged at the center of the lower side of the cross (203), and the upper end of the pull rope (103) is fixedly connected to the connecting cylinder (208);
the material sprinkling device further comprises hard springs (205) and round balls (206), the periphery of the round cover (201) is fixedly connected with the hard springs (205) in an annular shape, and the lower ends of the hard springs (205) are fixedly connected with the round balls (206);
the material sprinkling device further comprises a sliding ring (401) and vertical rods (404), the vertical rods (404) are fixedly connected to the left end and the right end of the upper side of the sliding ring (401), and the upper portions of the two vertical rods (404) are fixedly connected to the left side and the right side of the material sprinkling hopper (101) respectively;
the material sprinkling device further comprises bar rods (301), bar grooves (302) and bent rods (303), the two bar rods (301) are arranged on the left and right sides, the front ends and the rear ends of the two bar rods (301) are connected through the bent rods (303), the bar grooves (302) are arranged on the opposite surfaces of the two bar rods (301), and the two ends of the slip ring (401) are inserted into the two bar grooves (302) respectively;
the material sprinkling device further comprises a track rod (307), a translation seat (309), a fixed shaft (403) and a bottom beam (405), the track rod (307) is welded on the rod (301) on the right side, the right part of the translation seat (309) is inserted onto the track rod (307) in a clearance fit manner, the bottom beam (405) is welded on the lower side of the sliding ring (401), the fixed shaft (403) is welded in the middle of the lower side of the bottom beam (405), and the fixed shaft (403) is inserted into the left part of the translation seat (309) in a clearance fit manner;
the material scattering device further comprises an electric telescopic rod (304), a sliding rod (305), a rack (306), a boss (310) and a gear (402), the gear (402) is welded on the lower side of the fixed shaft (403), the boss (310) is welded on the left side of the rod (301), the sliding rod (305) is inserted on the boss (310) in a clearance fit mode in the left-right direction, the rack (306) is welded at the right end of the sliding rod (305), the rack (306) is located on the left side of the gear (402), the electric telescopic rod (304) is fixed on the boss (310) through a flange, and the left end of the electric telescopic rod (304) is connected to the left end of the sliding rod (305) through a flange.
2. A compound fertilizer preparation process according to claim 1, characterized in that: the sealing fermentation time in the S1 is 21 days.
3. A compound fertilizer preparation process according to claim 1, characterized in that: the human and animal excreta are chicken excreta and human excreta, and the weight ratio of the chicken excreta to the human excreta is 4.
4. A compound fertilizer prepared by using the compound fertilizer preparation process of claim 1, characterized in that: the compound fertilizer is composed of the following raw materials in parts by weight: 12 parts of human and animal excreta, 12 parts of straw, 8 parts of sawdust, 7 parts of rice bran, 11 parts of ammonium dihydrogen phosphate, 9 parts of urea and 5 parts of potassium sulfate.
5. A process for the preparation of a compound fertilizer according to claim 1, characterized in that: the material sprinkling device further comprises a round rod (308), a flat rod (501), blocking columns (502), a rotating rod (503), a support (504), a V-shaped part (505), a motor (506), blocking rings (507) and a top shaft (508), the round rod (308) is welded on the right side of the translation seat (309), the lower portion of the support (504) is welded on a track rod (307), the motor (506) is connected to the upper portion of the support (504) through screws, the V-shaped part (505) is welded on an output shaft of the motor (506), the round rod (308) is inserted into the range of the V-shaped part (505), the top shaft (508) is welded on the upper side of the support (504), the top shaft (508) is inserted into the middle portion of the flat rod (501) in a clearance fit mode, the top shaft (508) is fixedly connected with the two blocking rings (507), the two blocking rings (507) are respectively located on two sides of the flat rod (501), the rotating rod (503) is welded at the upper end of the top shaft (508), the two blocking columns (502) on the upper side of the flat rod (501), the two blocking columns (502) are respectively located on two sides of the top shaft (508), and a plurality of jacks are welded on the flat rod (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210491279.2A CN114702344B (en) | 2022-05-07 | 2022-05-07 | Compound fertilizer and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210491279.2A CN114702344B (en) | 2022-05-07 | 2022-05-07 | Compound fertilizer and preparation process thereof |
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| CN114702344A CN114702344A (en) | 2022-07-05 |
| CN114702344B true CN114702344B (en) | 2023-03-28 |
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| CN116730751B (en) * | 2023-06-16 | 2024-05-24 | 江苏惠霖环保科技有限公司 | Livestock manure organic fertilizer fermentation device with stirring function |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2108427U (en) * | 1991-08-21 | 1992-07-01 | 杨宁泉 | Automatic feed spreading device for culture pond |
| CN102476968A (en) * | 2010-11-28 | 2012-05-30 | 杜平 | Organic-inorganic compound fertilizer and preparation method thereof |
| CN102784583A (en) * | 2012-07-24 | 2012-11-21 | 苏州市华元化工有限公司 | Uniformly sprinkling device |
| CN109601068A (en) * | 2018-12-20 | 2019-04-12 | 王小露 | A kind of hand-held propelled soybean seeder |
| CN110292015B (en) * | 2019-07-18 | 2021-09-24 | 渤海水产股份有限公司 | Aquaculture fodder equipment of shedding |
| CN211430040U (en) * | 2019-11-23 | 2020-09-08 | 泉州永春佳鼎农业机械有限公司 | Hand-push type field fertilizer distributor for agriculture |
| CN110734323A (en) * | 2019-12-03 | 2020-01-31 | 湖南金信复合肥有限公司 | microbial cake compound fertilizer and preparation method thereof |
| CN111066707A (en) * | 2019-12-25 | 2020-04-28 | 安徽陆明科技有限公司 | Aquaculture that can shed fodder is with feeding device of eating |
| CN112179083A (en) * | 2020-09-07 | 2021-01-05 | 王新荣 | Vibrating drying device of fertilizer |
| CN112385381B (en) * | 2020-10-28 | 2022-08-23 | 王意民 | Agricultural device for fertilizing |
| CN112352517A (en) * | 2020-11-10 | 2021-02-12 | 王菊明 | Agricultural is with centrifugal fertilizer injection unit of solid fertilizer |
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