CN113348834A - Forestry is planted with fertilizer injection unit that grows seedlings - Google Patents
Forestry is planted with fertilizer injection unit that grows seedlings Download PDFInfo
- Publication number
- CN113348834A CN113348834A CN202110554950.9A CN202110554950A CN113348834A CN 113348834 A CN113348834 A CN 113348834A CN 202110554950 A CN202110554950 A CN 202110554950A CN 113348834 A CN113348834 A CN 113348834A
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- CN
- China
- Prior art keywords
- supporting seat
- electric telescopic
- liquid storage
- top end
- driving
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
- A01C15/005—Undercarriages, tanks, hoppers, stirrers specially adapted for seeders or fertiliser distributors
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
- A01C15/16—Fertiliser distributors with means for pushing out the fertiliser, e.g. by a roller
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/04—Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
- A01C23/047—Spraying of liquid fertilisers
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Fertilizing (AREA)
Abstract
The invention discloses a seedling raising and fertilizing device for forestry planting, which comprises a supporting seat, wherein two balancing supporting rods are alternately connected between two sides of the supporting seat, connecting rollers are respectively arranged at two ends of each balancing supporting rod, a liquid storage tank is fixedly arranged at one side of the top end of the supporting seat, and a driving ratchet wheel is alternately connected at the center of the top end of the liquid storage tank; according to the invention, liquid fertilizer can be sprayed out of the spraying nozzle through the electromagnetic valve, the electric telescopic drum can be opened through the switch panel during spraying, the electric telescopic drum is enabled to wind the driving chain through the winding belt, the driving chain drives the driving ratchet wheel to rotate when being pulled, when the electric telescopic drum is closed, the tension on the winding belt is lost, the driving chain is pulled by the reset spring to reset, and the driving chain drives the driving ratchet wheel to rotate when being pulled, so that the stirring fan blades rotate back and forth along with the driving chain, the solution in the storage barrel is stirred, the precipitation of solid fertilizer is avoided, and the content of the sprayed fertilizer is more uniform.
Description
Technical Field
The invention relates to the technical field of seedling raising and fertilizing, in particular to a seedling raising and fertilizing device for forestry planting.
Background
The seedling raising means the raising of seedlings. The method is characterized in that seedlings are cultivated in a nursery, a hotbed or a greenhouse and are ready to be transplanted into the soil for planting, the seedling cultivation is a work which is high in labor intensity, time-consuming and high in technical performance, and the fertilization is an agricultural technical measure for applying fertilizer to soil or spraying the fertilizer on plants to provide nutrients needed by the plants and maintain and improve soil fertility.
Forestry grow seedlings the in-process and often need fertilize to the seedling garden, need mix with the pure water stirring of certain proportion before solid fertilizer fertilizies a bit, fertilize afterwards and spray, and spray the in-process solid fertilizer and easily follow the pure water and separate out, and current fertilizer injection unit is difficult to stir liquid fertilizer at the fertilization in-process, can't avoid spraying the in-process solid fertilizer and separate out from the pure water for liquid fertilizer's content is inhomogeneous, and the fertilization effect is poor.
Disclosure of Invention
The invention aims to provide a seedling raising and fertilizing device for forestry planting, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the seedling-raising and fertilizing device for forestry planting comprises a supporting seat, wherein two balance supporting rods are alternately connected between two sides of the supporting seat, connecting rollers are mounted at two ends of each balance supporting rod, a liquid storage tank is fixedly arranged at one side of the top end of the supporting seat, a driving ratchet wheel is alternately connected at the center of the top end of the liquid storage tank, a linkage shaft is connected at the center of the bottom end of the driving ratchet wheel in a transmission manner, the linkage shaft extends into the liquid storage tank and is connected with stirring blades in a transmission manner, a driving chain is meshed and connected with one side of the driving ratchet wheel, an electric telescopic drum is mounted at one side of the top end of the liquid storage tank, the output end of the electric telescopic drum is connected with one end of the driving chain through a winding belt, a limiting connecting plate is fixedly arranged at the other side of the top end of the liquid storage tank, and the other end of the driving chain is connected with the limiting connecting plate through a reset spring, the positive bottom of liquid reserve tank is installed the solenoid valve, the output of solenoid valve is installed and is broadcast the shower nozzle.
Preferably, the fixed intercommunication in one side on liquid reserve tank top has first inlet pipe, the feeding logical groove has been seted up on the top of first inlet pipe, the top that the feeding leads to the inslot wall articulates through the connection cover shell has the connection apron, the connection spout has been seted up on the top of connection apron, the inside sliding connection who connects the spout has sealed slide, the fixed handle that pushes away that is equipped with in center department on sealed slide top, spacing logical groove has been seted up to one side of first inlet pipe inner wall, sealed slide passes the inner wall of connection apron one side, and alternates with spacing logical groove and be connected.
Preferably, one edge of the top end of the liquid storage tank is fixedly provided with a connecting vertical plate, one side of the connecting vertical plate is fixedly provided with a balance baffle plate, and the balance baffle plate and the driving ratchet wheel are connected in an inserting mode through a limiting rod.
Preferably, a plurality of fertilization through-holes have been seted up to one side of supporting seat top center department, the fixed storage vat that is equipped with of center department on supporting seat top, every the fertilization through-hole all with the fixed intercommunication of storage vat, storage vat top center department installs gear motor, gear motor's output extends to the inside of storage vat, and fixedly connected with drive connecting rod, the both sides of drive connecting rod are all fixed and are equipped with the connection diaphragm, every connect the diaphragm all to contact with the supporting seat.
Preferably, gear motor's outside cover is equipped with the support lantern ring, be connected through a plurality of landing legs between support lantern ring and the storage vat, the fixed intercommunication in top of storage vat one side has the second inlet pipe.
Preferably, the other side of the top end of the supporting seat is provided with a storage battery.
Preferably, the back of the supporting seat is fixedly provided with two fixed push rods, and a balance connecting plate is fixedly arranged between the two fixed push rods.
Preferably, balanced even center department on board top installs flush mounting plate, gear motor switch, solenoid valve switch and electronic flexible drum switch are installed on flush mounting plate's top, gear motor, solenoid valve and electronic flexible drum are respectively through gear motor switch, solenoid valve switch and electronic flexible drum switch and battery electric connection.
The invention has the technical effects and advantages that:
(1) the liquid fertilizer can be sprayed out of the spraying nozzle through the electromagnetic valve, the electric telescopic drum can be opened through the switch panel during spraying, the electric telescopic drum is enabled to wind the driving chain through the winding belt, the driving chain drives the driving ratchet wheel to rotate when pulled, when the electric telescopic drum is closed, the tension on the winding belt is lost, the driving chain is pulled by the reset spring to reset, and when the driving chain is pulled, the driving ratchet wheel is driven to rotate, so that the stirring fan blades rotate back and forth along with the driving chain, the solution in the storage barrel is stirred, the precipitation of the solid fertilizer is avoided, and the content of the sprayed fertilizer is more uniform;
(2) the device is pushed to a forestry garden to be fertilized through a fixed push rod and a connecting roller, then, solid fertilizer to be sown needs to be stirred and mixed with purified water in a certain proportion before being fertilized, a sealing sliding plate slides into a connecting cover plate through sliding of a push handle, then, the push handle is pulled to turn over the connecting cover plate, the mixed fertilizer is poured into a liquid storage tank through a first feeding pipe, and then, the positions of the connecting cover plate and the sealing sliding plate can be restored, so that external impurities are prevented from entering the liquid storage tank;
(3) inside the storage vat was poured into from the second inlet pipe to the solid fertilizer that can directly broadcast, when broadcasting fertilizer, open gear motor through flush mounting plate, gear motor can drive the drive connecting rod and connect the diaphragm rotation when rotating, thereby mix the solid fertilizer of storage vat inside, thereby when solid fertilizer was promoted to fertilization through-hole top, can carry out the broadcast of fertilizer, the simple broadcast of being convenient for is given up to rest is spilt fertilizer, and connect the rotation repeatedly of diaphragm, can clear up the scraping to fertilization through-hole top, avoid its jam.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a connection structure between the electric telescopic drum and the limit connecting plate according to the present invention;
FIG. 3 is an enlarged schematic view of the first feed tube of the present invention;
FIG. 4 is a schematic view of a top end of the support base according to the present invention;
fig. 5 is a schematic view of the connection structure of the speed reducing motor and the connecting cross plate.
In the figure: 1. a supporting seat; 2. a liquid storage tank; 3. connecting a vertical plate; 4. a balance baffle plate; 5. a first feed tube; 6. an electromagnetic valve; 7. a sowing spray head; 8. a balance strut; 9. connecting a roller; 10. fixing the push rod; 11. a storage barrel; 12. a second feed tube; 13. a reduction motor; 14. a support collar; 15. a storage battery; 16. fertilizing through holes; 17. balancing the connecting plate; 18. a switch panel; 19. an electric telescopic drum; 20. a drive chain; 21. driving the ratchet wheel; 22. a limiting connecting plate; 23. winding the tape; 24. a stirring fan blade; 25. a return spring; 26. a connecting casing; 27. connecting the cover plate; 28. sealing the sliding plate; 29. a push handle; 30. connecting the sliding chute; 31. a drive link; 32. connecting the transverse plates.
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.
The invention provides a seedling-raising and fertilizing device for forestry planting as shown in figures 1-5, which comprises a supporting seat 1, two balancing support rods 8 are inserted and connected between two sides of the supporting seat 1, two ends of each balancing support rod 8 are respectively provided with a connecting roller 9, one side of the top end of the supporting seat 1 is fixedly provided with a liquid storage tank 2, the center of the top end of the liquid storage tank 2 is inserted and connected with a driving ratchet wheel 21, the center of the bottom end of the driving ratchet wheel 21 is in transmission connection with a linkage shaft, the linkage shaft extends into the liquid storage tank 2 and is in transmission connection with a stirring fan blade 24, one side of the driving ratchet wheel 21 is in meshing connection with a driving chain 20, one side of the top end of the liquid storage tank 2 is provided with an electric telescopic drum 19, the output end of the electric telescopic drum 19 is connected with one end of the driving chain 20 through a winding belt 23, the other side of the top end of the liquid storage tank 2 is fixedly provided with a limiting connecting plate 22, and the other end of the driving chain 20 is connected with the limiting connecting plate 22 through a return spring 25, the positive bottom of liquid reserve tank 2 is installed solenoid valve 6, and the sprinkler 7 is installed to solenoid valve 6's output.
As shown in fig. 1-5, one side of the top end of the liquid storage tank 2 is fixedly communicated with a first feeding pipe 5, the top end of the first feeding pipe 5 is provided with a feeding through groove, the top of the inner wall of the feeding through groove is hinged with a connecting cover plate 27 through a connecting sleeve shell 26, the top end of the connecting cover plate 27 is provided with a connecting chute 30, the inside of the connecting chute 30 is slidably connected with a sealing slide plate 28, the center of the top end of the sealing slide plate 28 is fixedly provided with a push handle 29, one side of the inner wall of the first feeding pipe 5 is provided with a limiting through groove, the sealing slide plate 28 passes through the inner wall of one side of the connecting cover plate 27 and is connected with the limiting through groove in an inserting manner, one edge of the top end of the liquid storage tank 2 is fixedly provided with a connecting vertical plate 3, one side of the connecting vertical plate 3 is fixedly provided with a balance baffle plate 4, the balance baffle plate 4 is connected with a driving ratchet 21 in an inserting manner through a limiting rod, one side of the center of the top end of the supporting seat 1 is provided with a plurality of fertilizing through holes 16, the center of the top end of the supporting seat 1 is fixedly provided with a storage barrel 11, each fertilizing through hole 16 is fixedly communicated with the storage barrel 11, the center of the top end of the storage barrel 11 is provided with a speed reducing motor 13, the output end of the speed reducing motor 13 extends into the storage barrel 11, the driving connecting rod 31 is fixedly connected with the driving connecting rod 31, two sides of the driving connecting rod 31 are respectively and fixedly provided with a connecting transverse plate 32, each connecting transverse plate 32 is contacted with the supporting seat 1, the outer side of the speed reducing motor 13 is sleeved with a supporting lantern ring 14, the supporting lantern ring 14 is connected with the storage barrel 11 through a plurality of supporting legs, the top of one side of the storage barrel 11 is fixedly communicated with a second feeding pipe 12, the other side of the top end of the supporting seat 1 is provided with a storage battery 15, the back of the supporting seat 1 is fixedly provided with two fixed push rods 10, a balance connecting plate 17 is fixedly arranged between the two fixed push rods 10, the center of the top end of the balance connecting plate 17 is provided with a switch panel 18, the top end of the switch panel 18 is provided with a speed reducing motor switch, an electromagnetic valve switch and an electric telescopic drum switch, a speed reducing motor 13, an electromagnetic valve 6 and an electric telescopic drum 19 are respectively electrically connected with a storage battery 15 through the speed reducing motor switch, the electromagnetic valve switch and the electric telescopic drum switch, the device is pushed to a forestry garden to be fertilized through a fixed push rod 10 and a connecting roller 9, then the solid fertilizer to be fertilized needs to be stirred and mixed with purified water in a certain proportion before being fertilized, a push handle 29 is slid to enable a sealing sliding plate 28 to slide into a connecting cover plate 27, then the connecting cover plate 27 is overturned by pulling the push handle 29, the mixed fertilizer is poured into a liquid storage box 2 through a first feeding pipe 5, then the positions of the connecting cover plate 27 and the sealing sliding plate 28 can be restored, the external impurities are prevented from entering the liquid storage box 2, the solid fertilizer which can be directly fertilized is poured into a barrel 11 from a second feeding pipe 12, when fertilizer is spread, the gear motor 13 is opened through the switch panel 18, the gear motor 13 can drive the driving connecting rod 31 and the connecting transverse plate 32 to rotate when rotating, so that solid fertilizer in the storage barrel 11 is stirred, so that when the solid fertilizer is pushed to the top end of the fertilizing through hole 16, fertilizer can be spread easily, and the connecting transverse plate 32 rotates repeatedly, so that the top end of the fertilizing through hole 16 can be cleaned and scraped to avoid blockage, the electromagnetic valve 6 is opened through the switch panel 18, liquid fertilizer can be sprayed out from the spreading nozzle 7, the electric telescopic drum 19 can be opened through the switch panel 18 during spreading, so that the electric telescopic drum 19 winds the driving chain 20 through the winding belt 23, the driving chain 20 drives the driving ratchet 21 to rotate when being pulled, when the electric telescopic drum 19 is closed, the tension on the winding belt 23 is lost, the reset spring 25 pulls the driving chain 20 to reset, when drive chain 20 stimulates, drive ratchet 21 and rotate to make stirring fan blade 24 reciprocating rotation thereupon, stir the inside solution of storage vat 11, avoid appearing of solid fertilizer, make the fertilizer content of broadcasting more even.
The working principle of the invention is as follows: before use, the storage battery 15 is fully charged, the device is pushed to a forestry garden to be fertilized through the fixed push rod 10 and the connecting roller 9, then solid fertilizer to be spread needs to be stirred and mixed with purified water in a certain proportion before being fertilized, the sealing sliding plate 28 slides into the connecting cover plate 27 through sliding the push handle 29, then the connecting cover plate 27 is overturned by pulling the push handle 29, the mixed fertilizer is poured into the liquid storage tank 2 through the first feeding pipe 5, then the positions of the connecting cover plate 27 and the sealing sliding plate 28 can be restored, so that external impurities are prevented from entering the liquid storage tank 2, the solid fertilizer which can be directly spread is poured into the storage barrel 11 from the second feeding pipe 12, when the fertilizer is spread, the speed reducing motor 13 is opened through the switch panel 18, when the speed reducing motor 13 rotates, the driving connecting rod 31 and the connecting transverse plate 32 can be driven to rotate, and the solid fertilizer in the storage barrel 11 is stirred, therefore, when the solid fertilizer is pushed to the top end of the fertilizing through hole 16, the fertilizer can be spread conveniently and intermittently, the transverse plate 32 is connected to rotate repeatedly, the top end of the fertilizing through hole 16 can be cleaned and scraped, the blockage of the fertilizing through hole can be avoided, the electromagnetic valve 6 is opened through the switch panel 18, the liquid fertilizer can be sprayed out from the spreading nozzle 7, the electric telescopic drum 19 can be opened through the switch panel 18 during spreading, the electric telescopic drum 19 winds the driving chain 20 through the winding belt 23, the driving ratchet 21 is driven to rotate when the driving chain 20 is pulled, when the electric telescopic drum 19 is closed, the tension on the winding belt 23 is lost, the driving chain 20 is pulled by the reset spring 25 to reset, the driving ratchet 21 is driven to rotate when the driving chain 20 is pulled, so that the stirring fan blades 24 rotate in a reciprocating manner along with the driving ratchet 21, the solution in the storage barrel 11 is stirred, and the precipitation of the solid fertilizer can be avoided, so that the content of the fertilizer sprayed is more uniform.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used by the invention can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.
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 (8)
1. The utility model provides a forestry is planted with fertilizer injection unit that grows seedlings, includes supporting seat (1), its characterized in that: two balance supporting rods (8) are alternately connected between two sides of the supporting seat (1), each balance supporting rod (8) is provided with a connecting roller (9) at two ends, one side of the top end of the supporting seat (1) is fixedly provided with the liquid storage box (2), the center of the top end of the liquid storage box (2) is alternately connected with the driving ratchet wheel (21), the center of the bottom end of the driving ratchet wheel (21) is in transmission connection with a linkage shaft, the linkage shaft extends to the inside of the liquid storage box (2) and is in transmission connection with the stirring fan blades (24), one side of the driving ratchet wheel (21) is engaged and connected with the driving chain (20), an electric telescopic drum (19) is installed at one side of the top end of the liquid storage box (2), the output end of the electric telescopic drum (19) is connected with one end of the driving chain (20) through the winding belt (23), and a limiting connecting plate (22) is fixedly arranged at the other side of the top end of the liquid storage box (2), the other end of drive chain (20) is connected through reset spring (25) between spacing even board (22), solenoid valve (6) are installed to the positive bottom of liquid reserve tank (2), broadcast shower nozzle (7) are installed to the output of solenoid valve (6).
2. A seedling raising and fertilizing device for forestry planting according to claim 1, characterized in that: the fixed intercommunication in one side on liquid reserve tank (2) top has first inlet pipe (5), the feeding logical groove has been seted up on the top of first inlet pipe (5), the feeding is led to the top of inslot wall and is articulated through connecting that cover shell (26) have connection apron (27), connection spout (30) have been seted up on the top of connection apron (27), the inside sliding connection who connects spout (30) has sealed slide (28), the fixed handle (29) that pushes away that is equipped with in center department on sealed slide (28) top, spacing logical groove has been seted up to one side of first inlet pipe (5) inner wall, sealed slide (28) pass the inner wall of connecting apron (27) one side, and alternate with spacing logical groove and be connected.
3. A seedling raising and fertilizing device for forestry planting according to claim 1, characterized in that: the improved structure of the liquid storage tank is characterized in that a connecting vertical plate (3) is fixedly arranged at one edge of the top end of the liquid storage tank (2), a balance partition plate (4) is fixedly arranged on one side of the connecting vertical plate (3), and the balance partition plate (4) is connected with a driving ratchet wheel (21) in an inserting mode through a limiting rod.
4. A seedling raising and fertilizing device for forestry planting according to claim 1, characterized in that: a plurality of fertilization through-holes (16) have been seted up to one side of supporting seat (1) top center department, the center department on supporting seat (1) top is fixed and is equipped with storage vat (11), every fertilization through-hole (16) all with storage vat (11) fixed intercommunication, storage vat (11) top center department installs gear motor (13), the output of gear motor (13) extends to the inside of storage vat (11), and fixedly connected with drive connecting rod (31), the both sides of drive connecting rod (31) are all fixed and are equipped with connection diaphragm (32), every connection diaphragm (32) all contact with supporting seat (1).
5. A seedling raising and fertilizing device for forestry planting according to claim 4, characterized in that: the outside cover of gear motor (13) is equipped with support lantern ring (14), be connected through a plurality of landing legs between support lantern ring (14) and storage vat (11), the fixed intercommunication in top of storage vat (11) one side has second inlet pipe (12).
6. A seedling raising and fertilizing device for forestry planting according to claim 4, characterized in that: and a storage battery (15) is arranged on the other side of the top end of the supporting seat (1).
7. A seedling raising and fertilizing device for forestry planting according to claim 6, characterized in that: the back of supporting seat (1) is fixed and is equipped with two fixed push rods (10), two fixed even board (17) of being equipped with between fixed push rod (10).
8. A seedling raising and fertilizing device for forestry planting according to claim 7, characterized in that: balanced center department on even board (17) top installs flush mounting plate (18), gear motor switch, solenoid valve switch and electric telescopic drum switch are installed on the top of flush mounting plate (18), gear motor (13), solenoid valve (6) and electric telescopic drum (19) are respectively through gear motor switch, solenoid valve switch and electric telescopic drum switch and battery (15) electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110554950.9A CN113348834A (en) | 2021-05-21 | 2021-05-21 | Forestry is planted with fertilizer injection unit that grows seedlings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110554950.9A CN113348834A (en) | 2021-05-21 | 2021-05-21 | Forestry is planted with fertilizer injection unit that grows seedlings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113348834A true CN113348834A (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110554950.9A Pending CN113348834A (en) | 2021-05-21 | 2021-05-21 | Forestry is planted with fertilizer injection unit that grows seedlings |
Country Status (1)
| Country | Link |
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| CN (1) | CN113348834A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114793709A (en) * | 2022-05-17 | 2022-07-29 | 河南省大豫视频网络科技有限公司 | Planting shed device for wave-frequency seedling culture and breeding method for wave-frequency seedling culture |
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| CN114793709A (en) * | 2022-05-17 | 2022-07-29 | 河南省大豫视频网络科技有限公司 | Planting shed device for wave-frequency seedling culture and breeding method for wave-frequency seedling culture |
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Application publication date: 20210907 |
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