CN105850295A - Combined vacuum sowing device for fine seed seedling cultivation - Google Patents
Combined vacuum sowing device for fine seed seedling cultivation Download PDFInfo
- Publication number
- CN105850295A CN105850295A CN201610354543.2A CN201610354543A CN105850295A CN 105850295 A CN105850295 A CN 105850295A CN 201610354543 A CN201610354543 A CN 201610354543A CN 105850295 A CN105850295 A CN 105850295A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- small
- nursery
- plate
- sized seed
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/04—Single-grain seeders with or without suction devices
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/04—Machines for making or covering holes for sowing or planting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Sowing (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention discloses a combined vacuum sowing device for fine seed seedling cultivation. The combined vacuum sowing device comprises a vacuum machine (4). The vacuum machine (4) is fixedly installed on an upper cover plate (8). A seed suction plate (5) is arranged under the upper cover plate (8), and a negative pressure box (6) is arranged in a sealed region defined by the upper cover plate (8) and the seed suction plate (5). The upper cover plate (8) at the top of the negative pressure box (6) is communicated with a vacuum pipe (1) of the vacuum machine (4) to enable the vacuum machine (4) to vacuumize the negative pressure box (6). Evenly-distributed seed suction holes (11) are formed in the bottom of the seed suction plate (5), and the distribution condition of the seed suction holes (11) is consistent with that of punching nails (14) arranged on a punching plate (13). A nutrition medium in a float tray (15) can be driven out of seedling cultivation holes (16) through the punching nails (14). The combined vacuum sowing device can adjust seedling cultivation intervals and adapt to seeds of different diameters, sowing is rapid, sowing efficiency is high, cost is low, and use requirements can be well met.
Description
Technical field
The present invention relates to technical field of agricultural mechanical equipment, a kind of be capable of quickly sowing, several times improve sowing efficiency, reduce the composite vacuum seeding apparatus for small-sized seed nursery of production cost.
Background technology
For a long time, the manual sowing of manpower that China vegetable, the many employings of flower seedling raising are traditional, low, the thickness of sowing of loaded down with trivial details, the sowing efficiency of heavy, the operation of work unbalanced, seriously add work production cost, waste time and energy, and lack repeatability.By contrast, vacuum planters tool equalization efficiency is high, and seeding technique index is consistent, it is to avoid manpower sows the obvious errors caused by hand, is the indispensable important way in nursery field.
China is a large agricultural country, from the nineties in 20th century start China flowers, vegetable growing starts flourish, the development for vacuum kind seeder provides advantage, and development potentiality is the biggest.Development situation according to current vacuum planters, China's vacuum planters presses the size of seed particle size and the presence or absence of coating, monodrill, coating seeder can be divided into, its structure typically by dispenser, select grain device, actuating device, operating mechanism etc. to form.
Although China's seeder achieves some achievements in the eighties in 20th century, but is mostly used in farmland staple crop sowing；The human resources that the development work of vacuum seed sowing machine is put into by each scientific research institution of China is little, and research fund is injected limited, cannot realize between scientific research institution, between scientific research institution and enterprise, machinery and the different interdisciplinary cooperations such as agronomy, the scientific achievement obtained mostly is " single-point is bloomed ", the advantage of manpower fund cannot be concentrated, constrain comprehensive core technology system, the development of production system, hinder the formation of the Integrate technologies innovation system that larger range of " industries, universities and research institutors " be combined with each other.
It addition, the effect of vacuum planters determines seed variety to be tackled during operation, the change of thickness of sowing factor or adjustment, and requiring that repeatability is strong, seeding accuracy and density requirements are highly consistent, in order to the strong sprout cultivating neat and consistent.Its technology requires higher compared with field seeding machine, and utilization rate, productivity ratio are low, and working environment requires and cost is high, and these are all that vacuum breeding seeder develops " bottleneck " urgently to be resolved hurrily problem.Automatization for small-sized seed is sowed, owing to small-sized seed absorption affinity is strong, the most conventional vacuum planters is the most inapplicable, therefore, a kind of seeding machinery being applicable to the sowing of Minitype seed automatization of urgent needs, special seeder used during nursery a large amount of for Minitype seed, is mainly used in the fields such as the production of flowers and plants, vegetable, tobacco cultivation.
Summary of the invention
The problem that it is an object of the invention to exist for prior art, it is provided that a kind of be capable of quickly sowing, several times improve sowing efficiency, reduce the composite vacuum seeding apparatus for small-sized seed nursery of production cost.
It is an object of the invention to solve by the following technical programs:
A kind of composite vacuum seeding apparatus for small-sized seed nursery, including vacuum machine, inhale kind of a plate, perforated board and seedlings nursing plate, it is characterized in that: described vacuum machine is fixedly mounted on the upper surface of upper cover plate, a plate is planted in the suction that is arranged right below at upper cover plate, inhaling the sealing area surrounded between kind of plate and upper cover plate and constitute negative pressure box, the upper cover plate at negative pressure box top is connected with the vacuum tube of vacuum machine so that vacuum machine can be to negative pressure box evacuation；Being provided with equally distributed suction hole in the bottom inhaling kind of plate, the distribution situation of suction hole is consistent with the distribution situation of the punching nail arranged on perforated board；After the nutrient matrix in seedlings nursing plate is got nursery hole by punching nail, small-sized seed seeding process can be completed in the small-sized seed correspondence of absorption falls into nursery hole at suction hole under the effect of vacuum machine.
At described suction hole, the small-sized seed correspondence of absorption falls into the process in nursery hole is by being blown off by small-sized seed in nursery hole corresponding in closing vacuum machine and making small-sized seed the most automatically fall into seedlings nursing plate or by vacuum machine reversion and falling in seedlings nursing plate in the nursery hole of correspondence under gravity.
Described suction hole is that the round table-like top radius making suction hole is less than its bottom radius；The top radius of described suction hole is not more than the root radius of punching nail less than the radius of small-sized seed and the bottom radius of suction hole treating nursery.
Described punching nail makes the root radius of suction hole more than its front-end radius in rounding mesa-shaped.
Sealing setting between described vacuum tube and upper cover plate makes negative pressure box to leak gas.
In described negative pressure box, interval arranges strip pillar in order to support negative pressure box to avoid negative pressure box to deform because of negative pressure.
The top of described vacuum machine is provided with on vacuum machine handle, and vacuum machine handle and is provided with on and off switch, and the tail end of described vacuum machine is electrically connected with attaching plug by power line.
Air vent is offered on the side of described vacuum machine.
The top of described perforated board is connected by fixing screw is fixing with perforated board handle, and punching nail is fixedly mounted on the bottom of perforated board.
Described seedlings nursing plate is neatly stacked in working space.
The present invention has the following advantages compared to existing technology:
The composite vacuum seeding apparatus of the present invention greatly increases the efficiency of sowing by arranging suction hole on suction kind plate, negative pressure box seals and arranges the air-tightness that ensure that this vacuum seeding apparatus, the strong adaptability of this vacuum seeding apparatus, the spacing of nursery can be adjusted, by adjusting the diameter of suction hole to adapt to the seed of different-grain diameter by the density changing the suction hole punched on nail and sucker plate of perforated board；The sowing of the circular seed of the suitable various particle diameters of this vacuum seeding apparatus, it is possible to realize quickly sowing, several times improve sowing efficiency and are greatly reduced production cost, it is possible to well meet the demand of user.
Accompanying drawing explanation
Accompanying drawing 1 is the vacuum planters structure structural representation of the composite vacuum seeding apparatus of the present invention；
Accompanying drawing 2 is the structural representation inhaling kind of plate of the composite vacuum seeding apparatus of the present invention；
Accompanying drawing 3 is the structural representation of the perforated board of the composite vacuum seeding apparatus of the present invention；
Accompanying drawing 4 is the structural representation of the seedlings nursing plate of the composite vacuum seeding apparatus of the present invention.
Wherein: 1 vacuum tube；2 on and off switch；3 vacuum machine handles；4 vacuum machines；5 inhale kind of a plate；6 negative pressure boxes；7 air vents；8 upper cover plates；9 power lines；10 attaching plugs；11 suction holes；12 perforated board handles；13 perforated boards；14 punching nails；15 seedlings nursing plates；16 nursery holes.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
As Figure 1-4: a kind of composite vacuum seeding apparatus for small-sized seed nursery, including vacuum machine 4, inhale kind of a plate 5, perforated board 13 and seedlings nursing plate 15, on the top of vacuum machine 4, vacuum machine handle 3 is installed, and on and off switch 2 is installed on vacuum machine handle 3, the tail end of vacuum machine 4 is electrically connected with attaching plug 10 by power line 9, offers air vent 7 on the side of vacuum machine 4 simultaneously；The top of this perforated board 13 and perforated board handle 12 are connected by fixing screw is fixing, and 14 bottoms being fixedly mounted on perforated board 13 are followed closely in punching, and additionally be neatly stacked in can the working space of nursery for seedlings nursing plate 15.This vacuum machine 4 is fixedly mounted on the upper surface of upper cover plate 8, a plate 5 is planted in the suction that is arranged right below at upper cover plate 8, inhale the sealing area surrounded between kind of plate 5 and upper cover plate 8 and constitute negative pressure box 6, the upper cover plate 8 at negative pressure box 6 top be connected with the vacuum tube 1 of vacuum machine 4 so that vacuum machine 4 can to negative pressure box 6 evacuation, and between vacuum tube 1 and upper cover plate 8 seal setting negative pressure box 6 will not be leaked gas；Be provided with equally distributed suction hole 11 in the bottom inhaling kind of plate 5, the distribution situation of suction hole 11 is consistent with the distribution situation of the punching nail 14 arranged on perforated board 13；After the nutrient matrix in seedlings nursing plate 15 is got nursery hole 16 by punching nail 14, small-sized seed seeding process can be completed in the small-sized seed correspondence of absorption falls into nursery hole 16 at suction hole 11 under the effect of vacuum machine 4；Specifically, at suction hole 11, the small-sized seed correspondence of absorption falls into the process in nursery hole 16: be by invert in nursery hole 16 corresponding in closing vacuum machine 4 and making small-sized seed the most automatically fall into seedlings nursing plate 15 or by vacuum machine 4 small-sized seed blows off and falls under gravity seedlings nursing plate 15 in corresponding nursery hole 16.
Specifically, for optimizing the performance of this composite vacuum seeding apparatus further, the suction hole 11 inhaled on kind of plate 5 makes the top radius of suction hole 11 less than its bottom radius in round table-like, and the top radius of suction hole 11 is not more than the root radius of punching nail 14 less than the radius of small-sized seed and the bottom radius of suction hole 11 treating nursery simultaneously；Additionally punching nail 14 makes the root radius of suction hole 11 more than its front-end radius in rounding mesa-shaped.For avoiding negative pressure box 6 to deform because of negative pressure, in negative pressure box 6, interval arranges strip pillar in order to support negative pressure box 6.
When the composite vacuum seeding apparatus of the present invention uses, first in seedlings nursing plate 15, fill up nutrient matrix, be then directed at 15 times pressures of seedlings nursing plate with perforated board 13 and get nursery hole 16；Simultaneously that the purification of seeds of nursery is clean, pour in the seed-box more than seedlings nursing plate 15.After being ready to, the on and off switch 2 arranged on vacuum machine 4 is opened, by vacuum machine handle 3, suction kind plate 5 is picked up, suction kind plate 5 is lain against in seed-box, patting seed-box makes seed absorption uniformly in the suction hole 11 inhaling kind of plate 5, can make suction hole 11 and nursery hole 16 one_to_one corresponding, close vacuum machine 4 under moving on seedlings nursing plate 15 cover it by suction kind plate 5, seed, because falling under gravity without suction in the nursery hole 6 of seedlings nursing plate 15, completes composite vacuum seeding apparatus seeding process；If small-sized seed will not fall down after causing power-off because of the high adsorption capacity of this vacuum machine 4, then vacuum machine 4 is inverted in nursery hole 16 corresponding in small-sized seed blows off and falls under gravity seedlings nursing plate 15.
The composite vacuum seeding apparatus of the present invention greatly increases the efficiency of sowing by arranging suction hole 11 on suction kind plate 5, negative pressure box 6 seals and arranges the air-tightness that ensure that this vacuum seeding apparatus, the strong adaptability of this vacuum seeding apparatus, the spacing of nursery can be adjusted, by adjusting the diameter of suction hole 11 to adapt to the seed of different-grain diameter by the density changing the suction hole 11 punched on nail 14 and sucker plate 5 of perforated board 13；The sowing of the circular seed of the suitable various particle diameters of this vacuum seeding apparatus, it is possible to realize quickly sowing, several times improve sowing efficiency and are greatly reduced production cost, it is possible to well meet the demand of user.
Above example is only the technological thought that the present invention is described, it is impossible to limiting protection scope of the present invention with this, every technological thought proposed according to the present invention, any change done on the basis of technical scheme, within each falling within scope；The technology that the present invention is not directed to all can be realized by prior art.
Claims (10)
1. the composite vacuum seeding apparatus for small-sized seed nursery, including vacuum machine (4), inhale kind of a plate (5), perforated board (13) and seedlings nursing plate (15), it is characterized in that: described vacuum machine (4) is fixedly mounted on the upper surface of upper cover plate (8), a plate (5) is planted in the suction that is arranged right below at upper cover plate (8), inhale kind of the sealing area surrounded between plate (5) and upper cover plate (8) and constitute negative pressure box (6), the upper cover plate (8) at negative pressure box (6) top is connected so that vacuum machine (4) can be to negative pressure box (6) evacuation with the vacuum tube (1) of vacuum machine (4)；Being provided with equally distributed suction hole (11) inhaling kind of a bottom for plate (5), the distribution situation of the distribution situation of suction hole (11) punching nail (14) that arrange upper with perforated board (13) is consistent；After the nutrient matrix in seedlings nursing plate (15) is got nursery hole (16) by punching nail (14), under the effect of vacuum machine (4), complete small-sized seed seeding process in the small-sized seed correspondence that suction hole (11) place adsorbs can be fallen into nursery hole (16).
Composite vacuum seeding apparatus for small-sized seed nursery the most according to claim 1, it is characterised in that: the small-sized seed correspondence of described suction hole (11) place absorption is fallen into the process in nursery hole (16) and is inner by nursery hole (16) corresponding in closing vacuum machine (4) and making small-sized seed the most automatically fall into seedlings nursing plate (15) or is blown off by small-sized seed by vacuum machine (4) reversion and to fall into the nursery hole (16) of correspondence in seedlings nursing plate (15) under gravity inner.
Composite vacuum seeding apparatus for small-sized seed nursery the most according to claim 1 and 2, it is characterised in that: described suction hole (11) makes the top radius of suction hole (11) less than its bottom radius in round table-like；The top radius of described suction hole (11) is less than treating that the radius of small-sized seed of nursery and the bottom radius of suction hole (11) are no more than punched the root radius of nail (14).
4. according to the composite vacuum seeding apparatus for small-sized seed nursery described in claim 1 or 3, it is characterised in that: described punching nail (14) makes the root radius of suction hole (11) more than its front-end radius in rounding mesa-shaped.
Composite vacuum seeding apparatus for small-sized seed nursery the most according to claim 1, it is characterised in that: seal setting between described vacuum tube (1) and upper cover plate (8) and negative pressure box (6) will not be leaked gas.
The most according to claim 1 or 5 for the composite vacuum seeding apparatus of small-sized seed nursery, it is characterised in that: in described negative pressure box (6), interval arranges strip pillar in order to support negative pressure box (6) to avoid negative pressure box (6) to deform because of negative pressure.
Composite vacuum seeding apparatus for small-sized seed nursery the most according to claim 1, it is characterized in that: the top of described vacuum machine (4) is provided with vacuum machine handle (3), and on and off switch (2) is installed on vacuum machine handle (3), the tail end of described vacuum machine (4) is electrically connected with attaching plug (10) by power line (9).
8. according to the composite vacuum seeding apparatus for small-sized seed nursery described in claim 1 or 7, it is characterised in that: offer air vent (7) on the side of described vacuum machine (4).
Composite vacuum seeding apparatus for small-sized seed nursery the most according to claim 1, it is characterized in that: the top of described perforated board (13) is connected by fixing screw is fixing with perforated board handle (12), and punching nail (14) is fixedly mounted on the bottom of perforated board (13).
Composite vacuum seeding apparatus for small-sized seed nursery the most according to claim 1, it is characterised in that: described seedlings nursing plate (15) is neatly stacked in working space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354543.2A CN105850295A (en) | 2016-05-26 | 2016-05-26 | Combined vacuum sowing device for fine seed seedling cultivation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354543.2A CN105850295A (en) | 2016-05-26 | 2016-05-26 | Combined vacuum sowing device for fine seed seedling cultivation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105850295A true CN105850295A (en) | 2016-08-17 |
Family
ID=56641307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610354543.2A Pending CN105850295A (en) | 2016-05-26 | 2016-05-26 | Combined vacuum sowing device for fine seed seedling cultivation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105850295A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106900219A (en) * | 2017-04-20 | 2017-06-30 | 广州悦谷信息科技有限公司 | A kind of electrically driven sucking seeder and type of seeding |
| CN107535131A (en) * | 2017-10-14 | 2018-01-05 | 云南同宇传动件有限公司 | Seedlings nursing plate negative pressure seed dibbing machine |
| CN109362321A (en) * | 2018-12-13 | 2019-02-22 | 代作品 | Self-propelled sugar beet pickup machine |
| CN109392357A (en) * | 2018-12-17 | 2019-03-01 | 兰州大学 | A kind of raw grain manufacturing device of portable plant and application |
| CN110100540A (en) * | 2019-05-31 | 2019-08-09 | 云南中医药大学 | A kind of quick seeding apparatus of paris polyphylla seedling fostering multirow |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054877Y (en) * | 2007-05-24 | 2008-05-07 | 农业部南京农业机械化研究所 | Air absorbing type small seeding rate rice blanket shaped seeding tray seedling-culturing precision grain drill |
| CN201341318Y (en) * | 2009-01-14 | 2009-11-11 | 张国梁 | Potted seeding tray and potted seeding machine |
| CN201430768Y (en) * | 2009-06-22 | 2010-03-31 | 陈恒 | Pneumatic seed feeding device |
| CN103380668A (en) * | 2013-07-30 | 2013-11-06 | 常州市风雷精密机械有限公司 | Tray seeder |
| CN104472074A (en) * | 2014-11-18 | 2015-04-01 | 黑龙江省农业机械工程科学研究院 | Electric air-suction type seedling raising and sowing device |
-
2016
- 2016-05-26 CN CN201610354543.2A patent/CN105850295A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054877Y (en) * | 2007-05-24 | 2008-05-07 | 农业部南京农业机械化研究所 | Air absorbing type small seeding rate rice blanket shaped seeding tray seedling-culturing precision grain drill |
| CN201341318Y (en) * | 2009-01-14 | 2009-11-11 | 张国梁 | Potted seeding tray and potted seeding machine |
| CN201430768Y (en) * | 2009-06-22 | 2010-03-31 | 陈恒 | Pneumatic seed feeding device |
| CN103380668A (en) * | 2013-07-30 | 2013-11-06 | 常州市风雷精密机械有限公司 | Tray seeder |
| CN104472074A (en) * | 2014-11-18 | 2015-04-01 | 黑龙江省农业机械工程科学研究院 | Electric air-suction type seedling raising and sowing device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106900219A (en) * | 2017-04-20 | 2017-06-30 | 广州悦谷信息科技有限公司 | A kind of electrically driven sucking seeder and type of seeding |
| CN106900219B (en) * | 2017-04-20 | 2022-11-29 | 广州悦谷信息科技有限公司 | Electric air-aspiration type seeder and seeding method |
| CN107535131A (en) * | 2017-10-14 | 2018-01-05 | 云南同宇传动件有限公司 | Seedlings nursing plate negative pressure seed dibbing machine |
| CN109362321A (en) * | 2018-12-13 | 2019-02-22 | 代作品 | Self-propelled sugar beet pickup machine |
| CN109362321B (en) * | 2018-12-13 | 2024-05-14 | 代作品 | Self-propelled beet pick-up machine |
| CN109392357A (en) * | 2018-12-17 | 2019-03-01 | 兰州大学 | A kind of raw grain manufacturing device of portable plant and application |
| CN110100540A (en) * | 2019-05-31 | 2019-08-09 | 云南中医药大学 | A kind of quick seeding apparatus of paris polyphylla seedling fostering multirow |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105850295A (en) | Combined vacuum sowing device for fine seed seedling cultivation | |
| CN103380668B (en) | A kind of tray seeder | |
| CN102550180A (en) | Air-sucking vibration plate type precision seeder for field seedling raising | |
| CN104472074A (en) | Electric air-suction type seedling raising and sowing device | |
| CN205336814U (en) | Planter | |
| CN201054877Y (en) | Air absorbing type small seeding rate rice blanket shaped seeding tray seedling-culturing precision grain drill | |
| CN204047354U (en) | Fast demoulding seedling-cultivating tray | |
| CN203407175U (en) | Cave tray seeding machine | |
| CN106342451A (en) | Plug seedling replanting device | |
| CN206260254U (en) | A kind of wheeled air-suction seed metering device | |
| CN203748371U (en) | Nutrition medium culture device | |
| CN204316981U (en) | A kind of fluid bed seed-dressing device | |
| CN202565721U (en) | Seed sucking tray of semiautomatic precision planter | |
| CN206005152U (en) | A kind of aspirated-air type semiautomatic precision seeding machine | |
| CN203289967U (en) | Sapling and seedling matrix box | |
| CN203814163U (en) | Hole pressing, turning-over and seeding all-in-one machine | |
| RU185125U1 (en) | MANUAL SEEDER FOR CASSETTE | |
| CN205865033U (en) | Be applicable to sweetleaf chrysanthemum plug seedling seeder device | |
| CN101697692A (en) | Technology for cultivating edible fungi by fungus rod fungi culture | |
| JP3074207B2 (en) | Adsorption seeder and seed adsorption method | |
| CN201054878Y (en) | Air absorbing type rice bowl bogy seeding tray seedling-culturing precision grain drill | |
| CN205830308U (en) | A kind of black Fructus Lycii tray seedling-culture seeding device | |
| CN204681856U (en) | The automatic seeding and growing seedling device of hydroponic plant | |
| CN205454507U (en) | Hold meaning air -suction type cave dish seeder | |
| CN218042375U (en) | A device for greenhouse rotary tillage fertilization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |