CN107333491B - Large nest sleeve deep hole integrated forming method and device for transplanting small seedlings - Google Patents
Large nest sleeve deep hole integrated forming method and device for transplanting small seedlings Download PDFInfo
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- CN107333491B CN107333491B CN201710317251.6A CN201710317251A CN107333491B CN 107333491 B CN107333491 B CN 107333491B CN 201710317251 A CN201710317251 A CN 201710317251A CN 107333491 B CN107333491 B CN 107333491B
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- 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
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- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention discloses a method and a device for integrally forming a deep hole of a large nest sleeve for transplanting a small seedling, belonging to the technical field of transplanting machinery, wherein the forming method comprises the following steps: selecting a position to be dimpled; aligning the punching drill bit to the position to be punched; the seedling pit hole is drilled by breaking soil downwards through a power connecting device, a large pit forming die, a rotary taper sleeve and a punching drill bit in a vibration and rotation combined mode; forming the seedling nest hole into a profile shape with a large nest sleeve deep hole in one step; and (5) lifting the perforating drill bit to complete the hole digging and forming. The forming device consists of a vibration and rotation power source, a power connecting device, a punching drill, a rotation taper sleeve and a large-hole forming die, wherein the punching drill is connected with the vibration and rotation power source through the power connecting device; one end of the rotary taper sleeve is fixedly connected with the rear end of the perforating drill bit, and the other end of the rotary taper sleeve is connected with the large-nest forming die into a whole. The invention has the advantages of simple and easy structure, simple and convenient operation, portability, high working efficiency, low manufacturing cost and contribution to popularization.
Description
Technical Field
The invention belongs to the technical field of transplanting machinery, and relates to a method and a device for integrally forming a large nest sleeve and a deep hole for transplanting a small seedling.
Background
The transplanting of the plantlets is an important link of crop production, and the transplanting time and the transplanting quality of the plantlets have great influence on the survival of the seedlings and the growth of the field. According to the characteristics of loosening soil from top to bottom and compacting soil, the big nest and the small hole are formed by loosening a soil layer and compacting a soil layer, and the transplanted seedlings are placed in the deep holes, so that the soil temperature and humidity environment suitable for the growth of the seedlings is better built, the deep planting, timely transplanting and standard transplanting of the seedlings are realized, the uprightness of the seedlings is effectively ensured, the transplanting survival rate of the seedlings is improved, and the early growth and fast growth of the seedlings are promoted; the big nest is also beneficial to watering and topdressing, effectively collects rainwater, improves the utilization rate of water and fertilizer, and can also effectively utilize sunlight and prevent wind.
Hole digging and forming are key technologies for deep hole transplanting of large-hole sleeves, the hole quality of the holes has important influence on the survival rate of seedlings and the growth after planting, and the number of the needed holes is very large when large-batch planting is carried out. The manual hole digging and punching mode needs hole digging first and then punching, so that the labor intensity is high, the production efficiency is low, time and labor are wasted, the cost is high, and the operation quality is unstable; meanwhile, the large pits are dug manually, so that the damage to the ridge bodies is large, the soil on the ridges can fall into furrows, and the base fertilizer applied by the strips is scraped out of the ridge bodies, so that the fertilizer loss is caused; when the soil is dry, the difficulty of punching small holes is high, the holes are easy to collapse, the punching depth is insufficient, and the deep planting of seedlings is influenced. Therefore, the development of mechanized nesting and hole-forming equipment is necessary for production.
Therefore, in order to solve the above problems, there is a need for an integrated mechanism for digging and forming holes for transplantation, which can make the digging and forming holes easy to form, improve the working efficiency and the quality of the holes, and is safe to use and convenient to operate.
Disclosure of Invention
In view of the above, the invention aims to provide a method and a device for integrally forming a large nest sleeve and a deep hole for transplanting a small seedling, which can reasonably utilize natural conditions such as light, temperature, moisture and the like, and solve the problem that the natural conditions cannot be fully utilized to influence the growth and development quality of the seedling in the transplanting seedling nest hole in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the invention provides a method for integrally forming a deep hole of a large nest sleeve for transplanting a small seedling, which specifically comprises the following steps:
step 1), selecting a position to be nested;
step 2), aligning the drill bit of the hole drilling to the position to be drilled in the vertical direction;
step 3), breaking the soil downwards and punching seedling pits of the pit punching drill bit in a vibration and rotation combined mode;
step 4), forming the interior of the seedling nest hole into a profile shape with a large nest sleeve deep hole in one step;
and 5) lifting the drill bit of the hole digging hole to finish digging the sleeve deep hole.
Further, in the step 3), synchronously drilling the large pit and the deep hole at the position to be subjected to pit drilling by utilizing the rotation of a rotary taper sleeve, a large pit forming die and a surface soil anti-collapse disc which are connected to the punching drill bit, and synchronously vibrating the peripheral soil of the large pit and the deep hole to realize the vibration, ramming and compacting of the large pit and the deep hole.
The invention also provides a device for integrally forming the deep hole of the large nest sleeve for transplanting the small seedlings, which is used for realizing the method and comprises a vibration and rotation power source, a power connecting device, a punching drill bit, a rotation taper sleeve and a large nest forming die, wherein the punching drill bit is connected with the vibration and rotation power source through the power connecting device; one end of the rotary taper sleeve is fixedly connected with the rear end of the perforating drill bit, and the other end of the rotary taper sleeve is connected with the large-nest forming die into a whole.
Furthermore, the rotary taper sleeve and the large-nest forming die are of an integral structure.
Furthermore, the molding device also comprises a surface soil anti-collapse disc which is rotatably connected with the big nest molding die through a movable assembly.
Further, the movable assembly is a rotating body and is positioned between the surface soil anti-collapse disc and the large pit forming die, and the rotating body is a rubber ring or a bearing.
Furthermore, the movable assembly comprises a lower friction disc, an upper friction disc and a locking device, the lower friction disc is arranged at the end part of one end of the large nest forming die, which is far away from the punching drill bit, the upper friction disc, which is in mutual friction contact with the lower friction disc, is arranged at the end part of one end of the surface soil anti-collapse disc, which faces the large nest forming die, and the locking device is positioned in the surface soil anti-collapse disc and is arranged on the power connecting device; the rotary punching mechanism consists of a punching drill bit, a rotary taper sleeve, a large-nest forming die, a lower friction disk, a power connecting device and a vibration and rotation power source; the surface soil collapse prevention plate, the upper friction disk and the locking device form a vibrating ramming mechanism; the locking device is used for vertically pressing the large nest forming die and the rotary taper sleeve by the surface soil anti-collapse disc and applying the relative locking force of an upper friction disc arranged on the surface soil anti-collapse disc and a lower friction disc arranged on the large nest forming die.
Furthermore, the locking device comprises two locking nuts, two bearings and two springs, wherein the two locking nuts, the two bearings and the two springs are all sleeved on the power connecting device, one of the two bearings is positioned on the upper surface of the upper friction disc, the other bearing is arranged above the upper friction disc through the springs, and one side, away from the upper friction disc, of the upper bearing is provided with the locking nut; and bearing sleeves are arranged on the two bearings.
Further, the outer wall of the big-nest forming die is provided with a bowl-shaped linear profile, and the opening part of the big-nest forming die is far away from the rotary taper sleeve.
Furthermore, a liftable pressure lever is arranged on the power connecting device, the pressure lever is horizontally intersected with the pressure lever, and the lower end of the pressure lever can be contacted with the inner wall of the surface soil anti-collapse disc; the number of the compression bars is at least three, and the compression bars are uniformly arranged at intervals in an annular mode along the circumferential direction of the power connecting device.
Compared with the prior art, the invention has the beneficial technical effects that: the invention achieves the effects of accumulating water and preserving heat and ensuring the vertical growth of seedlings through the shape of the seedling pit holes. The seedlings are put into the deep holes (the diameter of the holes is not greatly different from the diameter of the seedling pot soil), the stem of the seedling is vertical to the section of the deep hole, and the vertical growth of the seedling is ensured; the shape of big nest is the bowl form, avoids the downthehole high temperature of seedling nest and burns the seedling, and at the arid season, the rainwater can be collected to big nest, and the rainwater flows near root system along the deep hole wall, and the growth quality and the survival rate of seedling are guaranteed to the reasonable effective limited rainwater that utilizes.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of one embodiment of a molding apparatus of the present invention;
reference numerals: the method comprises the following steps of 1-a hole drilling bit, 2-a rotating taper sleeve, 3-a lower friction disc, 4-a large nest forming die, 5-an upper friction disc, 6-a power connecting device, 7-a surface soil anti-collapse disc and 8-a vibration rotating power source.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings; it should be understood that the preferred embodiments are illustrative of the invention only and are not limiting upon the scope of the invention.
The method for integrally forming the large nest sleeve and the deep hole for transplanting the small seedlings in the embodiment specifically comprises the following steps:
step 1), selecting a position to be nested;
step 2), aligning the punching drill bit to the position to be punched in the vertical direction;
step 3), the punching drill bit is subjected to downward soil breaking and seedling pit punching in a vibration and rotation combined mode;
step 4), forming the interior of the seedling nest hole into a profile shape with a large nest sleeve deep hole in one step;
and 5) lifting the digging drill to finish digging.
In the step 3), the rotation of a rotary taper sleeve, a large pit forming die and a surface soil anti-collapse disc which are connected to a punching drill bit is utilized to synchronously drill a large pit and a deep hole at the position to be dug, and peripheral soil of the large pit and the deep hole is synchronously vibrated to realize vibration, tamping and compacting.
The first embodiment is as follows:
as shown in fig. 1, the device for integrally forming the large nest sleeve and the deep hole for digging the nest for transplanting the small seedlings in the embodiment is used for realizing the method, and comprises a vibration and rotation power source 8, a power connecting device 6, a punching drill bit 1, a rotation taper sleeve 2 and a large nest forming die 4, wherein the punching drill bit 1 is connected with the vibration and rotation power source 8 through the power connecting device 6; the rotary taper sleeve 2 and the large-nest forming die 4 are sleeved outside the power connecting device 6, one end of the rotary taper sleeve 2 is fixedly connected with the rear end of the perforating drill bit 1, the other end of the rotary taper sleeve is connected with the large-nest forming die 4 into a whole, the rotary taper sleeve 2 and the large-nest forming die 4 are of an integral structure, the outer wall of the large-nest forming die 4 is provided with a bowl-shaped linear profile, and the opening part of the large-nest forming die is far away from the rotary taper sleeve 2; namely, the small end of the rotary taper sleeve is connected with the drill bit, the large end of the rotary taper sleeve is connected with the small end of the large-socket forming die, and the diameter of the small end of the large-socket forming die 4 is larger than or equal to that of the large end of the rotary taper sleeve 2. The power connection means 6 may be a rotating shaft.
When the drilling machine works, firstly, the power connecting device 6 needs to be fixed on the vibration and rotation power source 8, and then the rotary taper sleeve 2 and the large-hole forming die 4 are ensured to rotate together with the punching drill bit 1 connected to the power connecting device 6; then, selecting a position to be subjected to punching, and aligning the punching drill bit 1 to the position to be subjected to punching in the vertical direction; then start vibration rotary power source 8, this drill bit 1 buries the soil and punches, utilize the rotation of drill bit to drive big nest moulded die 4 and rotatory taper sleeve 2 and get big nest and deep hole through rotatory big nest and the rotatory taper sleeve position of will digging gradually through the rotation, and utilize the vibration of drill bit to drive big nest moulded die 4 and will carry out the vibrations to the big nest of getting and the peripheral soil of deep hole through vibration from top to bottom gradually and tamp tightly, when reaching suitable depth of planting, mention drill bit 1 for this forming device wholly leaves seedling nest hole, accomplish and dig the nest, like this, the inside shaping of this seedling nest hole is for having the profile shape the same with big nest sleeve deep hole integrated into one piece device outside.
The power connecting device 6 in this embodiment is provided with a depth adjusting disc (not shown), the depth adjusting disc can move up and down along the power connecting device above the dimple forming die, and the punching depth can be limited by moving the relative position of the depth adjusting disc and the power connecting device.
The power connecting device 6 in this embodiment is further provided with liftable pressure levers, the pressure levers are horizontally arranged in a crossed manner, the lower ends of the pressure levers can be in contact with the inner wall of the large nest forming die 4, and the number of the pressure levers is at least three, and the pressure levers are uniformly arranged at intervals in an annular manner along the circumferential direction of the power connecting device 6. Therefore, the vibration quantity transmitted from the power connecting device can be uniformly transmitted to the side wall of the large-nest forming die through the pressure rod, and the stability of the whole structure of the large-nest forming die is improved under the condition that the soil around the large nest is guaranteed to be tamped.
The second embodiment:
as shown in fig. 1, the present embodiment is different from the first embodiment in that: the forming device also comprises a surface soil anti-collapse disc 7 which is rotatably connected with the big nest forming die 4 through a movable assembly. The surface soil anti-collapse disc 7 is in a disc shape, the diameter of the small end of the surface soil anti-collapse disc 7 is larger than or equal to the diameter of the large end of the large nest forming die 4, the movable assembly is a rotating body and is positioned between the surface soil anti-collapse disc 7 and the large nest forming die 4, and the rotating body can adopt a rubber ring or a rotary bearing.
When the device works, firstly, the power connecting device 6 needs to be fixed on the vibration and rotation power source 8, and then the friction force of a rubber ring arranged between the surface soil anti-collapse disc 7 and the large nest forming die 4 is utilized to ensure that the surface soil anti-collapse disc 7 and the large nest forming die 4 can rotate along with the perforating drill bit 1 connected to the power connecting device 6; then, selecting a position to be subjected to punching, and aligning the punching drill bit 1 to the position to be subjected to punching in the vertical direction; and then starting a vibration and rotation power source 8, enabling the punching drill bit 1 to penetrate into soil for punching, wherein the soil resistance is lower, after the depth of a deep hole exceeds the surface soil anti-collapse disc 7, the soil resistance is increased in multiples along with the increase of the hole depth, when the soil resistance is greater than the friction force of a rubber ring, the large pit forming die 4 is separated from the surface soil anti-collapse disc 7, the large pit forming die 4 and the rotating taper sleeve 2 continue to rotate, the surface soil anti-collapse disc 7 stops rotating, the penetration depth is further increased, the large pit forming die 4 and the surface soil anti-collapse disc 7 gradually tamp the soil through up-and-down vibration, and when the proper planting depth is reached, the punching drill bit 1 is lifted, so that the forming device integrally leaves a seedling pit hole, and punching is completed, and thus, the inside of the seedling pit hole is formed to have the same outline shape as the outside of the large pit sleeve deep hole integrated forming device.
The lower ends of the liftable press rods arranged on the power connecting device 6 in the embodiment can be in contact with the inner wall of the surface soil anti-collapse disc 7, and the number of the press rods is at least three and the press rods are uniformly arranged at intervals in an annular mode along the circumferential direction of the power connecting device 6. Therefore, the vibration quantity transmitted from the power connecting device can be uniformly transmitted to the side wall of the surface soil anti-collapse disc through the pressure rod, and the stability of the whole structure of the surface soil anti-collapse disc is improved under the condition that soil on the periphery above the large pit is guaranteed to be tamped.
Example three:
as shown in fig. 1, the present embodiment is different from the second embodiment in that: the movable assembly is different in structure and comprises a lower friction disc 3, an upper friction disc 5 and a locking device, the lower friction disc 3 is arranged at one end part of the large nest forming die 4, which is far away from the hole drilling bit 1, the upper friction disc 4 which is in mutual friction contact with the lower friction disc 3 is arranged at one end part of the surface soil anti-collapse disc 7, which faces the large nest forming die 4, and the locking device is positioned in the surface soil anti-collapse disc 7 and is arranged on the power connecting device 6; the rotary punching mechanism consists of a punching drill bit 1, a rotary taper sleeve 2, a large-nest forming die 4, a lower friction disc 3, a power connecting device 6 and a vibration and rotation power source 8; the surface soil anti-collapse disc 7, the upper friction disc 5 and the locking device form a vibrating ramming mechanism; the locking device is used for vertically pressing the large-nest forming die 4 and the rotary taper sleeve 2 by the surface soil anti-collapse disc 7 and applying a relative locking force between an upper friction disc 5 arranged on the surface soil anti-collapse disc 7 and a lower friction disc 3 arranged on the large-nest forming die 4; locking device comprises lock nut (not drawn), bearing (not drawn), spring (not drawn) all the suit on power connecting device 6, the bearing is two, and one is located the upper surface of friction disk 5, and another locates the top of going up friction disk 5 through this spring, and the bearing of locating the top deviates from one side of friction disk 5 and is equipped with lock nut.
When the device works, firstly, the power connecting device 6 needs to be fixed on the vibration and rotation power source 8, then the pressure of the spring is adjusted by using the locking nut, so that the friction force between the upper friction disc 5 and the lower friction disc 3 is adjusted to ensure that the surface soil anti-collapse disc 7 and the large nest forming die 4 can rotate together with the perforating drill bit 1 connected to the power connecting device 6; then, selecting a position to be subjected to punching, and aligning the punching drill bit 1 to the position to be subjected to punching in the vertical direction; and then starting a vibration and rotation power source 8, enabling the punching drill bit 1 to punch holes in the soil, wherein the soil resistance is relatively low, after the depth of the deep hole exceeds the surface soil anti-collapse disc 7, the soil resistance is increased in a multiple manner along with the increase of the hole depth, when the soil resistance is greater than the pressure regulated by a spring, an upper friction disc 5 of the surface soil anti-collapse disc 7 is separated from a lower friction disc 3 of the large nest forming die 4, at the moment, the rotation hole opening mechanism continues to rotate, the upper friction disc 5 and the surface soil anti-collapse disc 7 stop rotating, the soil penetration depth is further increased, the surface soil anti-collapse disc 7 and the large nest forming die 4 gradually tamp the soil through vertical vibration, when the proper planting depth is reached, the punching drill bit 1 is lifted, so that the forming device integrally leaves the seedling nest hole to complete nest punching, and thus, the inside of the seedling nest hole is formed into the shape which is the same as the outside of the large nest sleeve integrated deep hole forming device.
The two bearings 7 in this embodiment are provided with bearing sleeves. This protects the bearing and provides lubrication conditions.
The spring in this embodiment is a coil spring. Of course, disc springs may be used in different embodiments.
In this embodiment, the opposite surfaces of the lower friction disc 3 and the upper friction disc 5 are both provided with anti-slip threads (not shown), and the anti-slip threads are of a diamond structure, so that the friction force between the two can be increased.
The position of the pressure lever on the power connection device in the embodiment is higher than that of the locking nut.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (5)
1. A big nest sleeve deep hole integrated forming device for transplanting small seedlings is characterized by comprising a vibration and rotation power source (8), a power connecting device (6), a punching drill bit (1), a rotation taper sleeve (2) and a big nest forming die (4), wherein the punching drill bit is connected with the vibration and rotation power source through the power connecting device; one end of the rotary taper sleeve is fixedly connected with the rear end of the perforating drill bit, and the other end of the rotary taper sleeve is connected with the big-nest forming die into a whole; the outer wall of the big-nest forming die is provided with a bowl-shaped linear profile, and the opening part of the big-nest forming die is far away from the rotary taper sleeve;
the big nest forming die is rotationally connected with a surface soil anti-collapse disc (7) through a movable assembly;
the movable assembly comprises a lower friction disc (3), an upper friction disc (5) and a locking device, the lower friction disc is arranged at the end part of one end of the large nest forming die, which is far away from the punching drill bit, the upper friction disc, which is in mutual friction contact with the lower friction disc, is arranged at the end part of one end of the surface soil anti-collapse disc, which faces the large nest forming die, and the locking device is positioned in the surface soil anti-collapse disc and is arranged on the power connecting device;
the rotary punching mechanism consists of a punching drill bit, a rotary taper sleeve, a large-nest forming die, a lower friction disk, a power connecting device and a vibration and rotation power source; the vibration ramming mechanism is composed of a surface soil anti-collapse disc, an upper friction disc and a locking device; the locking device is used for vertically pressing the large nest forming die and the rotary taper sleeve by the surface soil anti-collapse disc and applying the relative locking force of an upper friction disc arranged on the surface soil anti-collapse disc and a lower friction disc arranged on the large nest forming die.
2. The device for integrally forming the deep hole of the big socket sleeve for transplanting the young seedlings as claimed in claim 1, wherein the rotary taper sleeve and the big socket forming die are of an integral structure.
3. The big nest sleeve deep hole integrated forming device for young seedling transplantation according to claim 1, wherein the locking device comprises two locking nuts, two bearings and two springs, wherein the two locking nuts, the two bearings and the two springs are all sleeved on the power connecting device, one of the two bearings is located on the upper surface of the upper friction disc, the other bearing is located above the upper friction disc through the springs, and one side, away from the upper friction disc, of the upper bearing is provided with the locking nut; and bearing sleeves are arranged on the two bearings.
4. The big nest sleeve deep hole integrated forming device for transplanting the small seedlings according to claim 1, wherein a lifting pressure lever is further arranged on the power connecting device, and the lower end of the pressure lever is in contact with the inner wall of the surface soil collapse prevention disc; the number of the pressure bars is at least three, and the pressure bars are uniformly arranged at intervals in an annular mode along the circumferential direction of the power connecting device.
5. The forming method of the big nest sleeve deep hole integrated forming device for transplanting the young seedlings according to any one of claims 1 to 4, which is characterized by comprising the following steps:
step 1), selecting a position to be nested;
step 2), aligning the punching drill bit to the position to be punched in the vertical direction;
step 3), the punching drill bit is subjected to downward soil breaking and seedling pit punching in a vibration and rotation combined mode; namely: synchronously drilling a large pit and a deep hole at the position to be pit-drilled by utilizing the rotation of a rotary taper sleeve, a large pit forming die and a surface soil anti-collapse disc which are connected to the punching drill bit, and synchronously vibrating the peripheral soil of the large pit and the deep hole to realize the vibration, ramming and compacting of the large pit and the deep hole;
step 4), forming the interior of the seedling nest hole into a profile shape with a large nest sleeve deep hole in one step;
and 5) lifting the punching drill to complete the hole forming by digging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710317251.6A CN107333491B (en) | 2017-05-04 | 2017-05-04 | Large nest sleeve deep hole integrated forming method and device for transplanting small seedlings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710317251.6A CN107333491B (en) | 2017-05-04 | 2017-05-04 | Large nest sleeve deep hole integrated forming method and device for transplanting small seedlings |
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| CN107333491B true CN107333491B (en) | 2023-02-28 |
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| CN105265069A (en) * | 2015-11-09 | 2016-01-27 | 贵州大学 | Cavitating method and device for flue-cured tobacco transplanting well |
| CN105723875A (en) * | 2016-04-19 | 2016-07-06 | 丁浩然 | Solar cotton planter |
| CN205755401U (en) * | 2016-06-02 | 2016-12-07 | 贵州省烟草公司毕节市公司 | A kind of card punch being easy to loosen tobacco seedlings transplanting hole |
| CN106416560A (en) * | 2016-08-23 | 2017-02-22 | 华南农业大学 | Vibratory and separable drilling head type hole-digging and fertilizer-applying device and using method |
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2017
- 2017-05-04 CN CN201710317251.6A patent/CN107333491B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105265069A (en) * | 2015-11-09 | 2016-01-27 | 贵州大学 | Cavitating method and device for flue-cured tobacco transplanting well |
| CN105723875A (en) * | 2016-04-19 | 2016-07-06 | 丁浩然 | Solar cotton planter |
| CN205755401U (en) * | 2016-06-02 | 2016-12-07 | 贵州省烟草公司毕节市公司 | A kind of card punch being easy to loosen tobacco seedlings transplanting hole |
| CN106416560A (en) * | 2016-08-23 | 2017-02-22 | 华南农业大学 | Vibratory and separable drilling head type hole-digging and fertilizer-applying device and using method |
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