CN117898078A - Hard wheat broad-width precision planter - Google Patents

Hard wheat broad-width precision planter Download PDF

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Publication number
CN117898078A
CN117898078A CN202410309147.2A CN202410309147A CN117898078A CN 117898078 A CN117898078 A CN 117898078A CN 202410309147 A CN202410309147 A CN 202410309147A CN 117898078 A CN117898078 A CN 117898078A
Authority
CN
China
Prior art keywords
seeding
leg
legs
precision planter
wheat
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
Application number
CN202410309147.2A
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Chinese (zh)
Inventor
崔超
孙世君
郝水源
杨东升
王海伟
赵斌
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Hetao College
Original Assignee
Hetao College
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hetao College filed Critical Hetao College
Priority to CN202410309147.2A priority Critical patent/CN117898078A/en
Publication of CN117898078A publication Critical patent/CN117898078A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/18Machines for depositing quantities of seed at intervals
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B49/00Combined machines
    • A01B49/04Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
    • A01B49/06Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C5/00Making or covering furrows or holes for sowing, planting or manuring
    • A01C5/04Machines for making or covering holes for sowing or planting
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/20Parts of seeders for conducting and depositing seed

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sowing (AREA)

Abstract

The invention discloses a hard wheat wide precision seeder which comprises a bearing frame which is in butt joint with an agricultural machine, wherein a fixing leg is arranged on a beam in the middle of the bearing frame through a fastener, a seeding leg is inserted into an inner cavity of the fixing leg, a supporting ring is fixedly welded at the lower part of an outer ring of the seeding leg, a spring is sleeved on the outer ring of the seeding leg, and a broken pyramid is fixedly welded at the bottom of the side surface of the seeding leg. This stereoplasm wheat broad width precision planter uses through fixed leg, seeding leg, supporting ring, spacing ring, convex hole and spring's design, when using the seeder to carry out wheat seeding, especially in having freezing and frozen soil's environment, the seeding leg can carry out upper and lower position adjustment along with the soil environment adaptation of cultivating, has solved among the prior art seeding leg integral type rigid structure and has buckled even cracked problem easily effectively.

Description

Hard wheat broad-width precision planter
Technical Field
The invention relates to the technical field of wheat seeders, in particular to a hard wheat wide-width precision seeder.
Background
Wheat is one of traditional main grain crops in China, is staple food in northern areas with a plurality of people in China, and has consumption which is more than half of the total consumption of grains in China, and the total consumption is arranged in the first place. Durum wheat is one of the most important non-traditional view of our country for strategically storing ration crops.
The inner Mongolia river set irrigation area is the irrigation area with the largest design irrigation area in China, is an important commodity grain base in China, and is also an important grain production base in the inner Mongolia autonomous region. The average evaporation capacity of the river cover irrigation area at the arid and semiarid climate area for many years is 2100-2300 mm, the annual precipitation capacity is only 130-210 mm, and the evaporation-drop ratio is above 10:1. The annual average groundwater burial depth of the irrigation area is 1.24-1.79 m, the lowest 2.6-2.8 m (3 months), the highest 0.6-1.5 m (10 months at the bottom), the annual average air temperature is 5.6-7.6 ℃, the effective accumulated temperature is 2900-3200 ℃, the frost free period is 130-150 d, and the annual sunshine hours are 3100-3200 h, so that the irrigation area is a typical temperate continental climate. The unique water temperature and light climate condition provides favorable conditions for crop growth, and is the main production area of hard and high-quality wheat in China.
Because the special geographical position in the river cover area has a hard ice layer on the planting land, and the problem that the soil of the planting land is frozen after finishing can also occur, when the seeder is used for wheat seeding, the problem that the seeding legs on the seeder are broken often occurs when the equipment is used, and normal seeding work is affected.
Therefore, we propose a seeder, mainly used wheat is planted in order to solve its seeding leg and take place the cracked problem easily.
Disclosure of Invention
The invention aims to provide a hard wheat wide precision planter, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a stereoplasm wheat broad width precision planter, includes the carrier frame with agricultural machinery butt joint installation, install the fixed leg through the fastener on the crossbeam of carrier frame middle part, peg graft among the inner chamber of fixed leg has the seeding leg, the fixed welding of lower part of seeding leg outer lane has the holding ring, the cover is equipped with the spring on the outer lane of seeding leg, the fixed welding in bottom of seeding leg side has broken pyramid.
Preferably, the fixing leg is a hollow leg, the middle part of the fixing leg is a convex hole, and a limiting ring is arranged at one end of the sowing leg, which is positioned in the inner cavity of the fixing leg, through a fastener.
Preferably, the left sides of the bottoms of the two bearing frames are fixedly welded with brackets, a rolling roller is arranged between the two brackets through a transverse shaft, and each rolling roller is positioned right behind two sowing legs.
Preferably, the top of the bearing frame is fixedly welded with side plates, and a seed box is arranged between the two side plates through bolt fasteners.
Preferably, the bottom of the seed box is provided with a frame plate through a fastener, the bottom of the frame plate is provided with a material conveying hose through a clamp, and the bottom of the material conveying hose is inserted into the inner cavity of the fixed leg.
Preferably, the bottom of the inner wall of the side plate and the top of the frame plate are provided with material leakage holes for wheat planting outflow.
Preferably, the side of the frame plate is provided with a through hole, the inner cavity of the through hole is connected with a rotating shaft in a penetrating way, and a feeding roller is sleeved on the part of the rotating shaft positioned in the inner cavity of the through hole.
Preferably, one of the rotating shafts and the outer ring of the transverse shaft for mounting the milling roller are sleeved with fluted discs, two fluted discs are connected through chain transmission, two ends of the rotating shafts are mounted on the side plates through bearing blocks, and the two rotating shafts are connected through gear transmission.
Compared with the prior art, the invention has the beneficial effects that:
This stereoplasm wheat broad width precision planter uses through fixed leg, seeding leg, supporting ring, spacing ring, convex hole and spring's design, when using the seeder to carry out wheat seeding, especially in having freezing and frozen soil's environment, the seeding leg can carry out upper and lower position adjustment along with the soil environment adaptation of cultivating, has solved among the prior art seeding leg integral type rigid structure and has buckled even cracked problem easily effectively.
This stereoplasm wheat broad width precision planter uses through broken pyramid and spring design, can effectually reduce the frictional force between sowing leg and the soil through the inclined plane of broken pyramid, and the action of spring is being cooperated to the broken pyramid of pointed end design simultaneously, can break ice piece and soil piece fine, when conveniently sowing, can also improve the degree of mixing of ice-cube and soil to broken soil can also improve the laminating degree with the wheat seed, more helps subsequent wheat to grow.
This stereoplasm wheat broad width precision planter, through design a root wire among hollow seeding leg, the cooperation is with the seeding leg off the ground and is had half broken pyramid's height, at first can avoid the wheat seed after soaking to take place to glue the adhesion group each other, and follow-up growth appears striving for the nutrient easily and reduces the problem emergence of seed survival rate, and secondly, the seeding leg is in seeding wheat seed, still can avoid soil to block up the seeding leg and cause the unsmooth problem emergence of ejection of compact.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an isometric view of the present invention;
FIG. 3 is a schematic view of a chain drive of the present invention;
FIG. 4 is a schematic view of the structure of the fixing leg and the sowing leg of the present invention;
Fig. 5 is a cross-sectional view of the structure of the sowing leg of the present invention.
In the figure: 1. a carrier; 2. a fixed leg; 3. a male aperture; 4. sowing the legs; 5. a limiting ring; 6. a support ring; 7. a spring; 8. crushing the pyramid; 9. a roller; 10. a side plate; 11. a seed box; 12. a frame plate; 13. a material conveying hose; 14. a material leakage hole; 15. a through hole; 16. a rotating shaft; 17. fluted disc; 18. a chain; 19. a gear; 20. a feed roller; 21. a wire.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a technical scheme of a hard wheat broad-width precision planter, which comprises the following steps:
Example 1:
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the seeder comprises a bearing frame 1, a fixing leg 2 is arranged on a middle cross beam of the bearing frame 1, a convex hole 3 is formed in the middle of the fixing leg 2, a seeding leg 4 is inserted into an inner cavity of the convex hole 3, a limit ring 5 is mounted at the top of the seeding leg 4 through a bolt fastener, a supporting ring 6 is fixedly welded at the lower part of the outer wall of the seeding leg 4, a spring 7 is sleeved on the outer ring of the seeding leg 4, and the top and the bottom of the spring 7 respectively prop against the bottom of the fixing leg 2 and the top of the supporting ring 6.
Wherein, broken pyramids 8 are fixedly welded at the bottom of the side surfaces of the sowing legs 4.
The transverse distance between the sowing legs 4 is 25cm, and compared with 11cm of a traditional sowing machine, the problem of uneven water supply in the growing period in the drip irrigation wheat planting process can be effectively solved.
In this embodiment, the seeder is installed with agricultural machinery equipment butt joint through butt joint mounting structure on the side, provide power for it, thereby pull the seeder constantly and move on planting the soil, the tip of broken pyramid 8 bottom is through direct ice layer and the soil of breaking the surface, insert into the soil deep in, then constantly promote along with the continuous removal of seeder, and break ice layer and top layer soil constantly in the time of promoting, when meetting thick ice layer or frozen soil, initial state's pressure can't let broken pyramid 8 with ice layer and soil, broken pyramid 8 just at this moment just can rely on its inclined plane and ice layer and the reverse effort of soil gradually upwards move, just can drive the upward movement of sowing leg 4 when broken pyramid 8 upwards moves, in the time of sowing leg 4 upwards moving, just can upwards promote spring 7 through supporting ring 6, the top of spring 7 receives the restriction of fixed leg 2 bottom, and constantly compressed, at this moment sowing leg 4 and broken pyramid 8 decurrent effort just can increase, can break ice layer or frozen seed piece or broken pyramid's pressure can not let broken pyramid 8 break ice layer and soil, broken pyramid's the impact force that can realize the purpose is better in the broken seed piece is broken down, can realize the broken piece is broken down in the broken seed piece or the broken wheat, can realize the purpose is broken down, can realize the broken wheat, can be realized simultaneously, the broken down, the broken wheat is broken down, can be realized, and the purpose is broken down, can be broken down, and the wheat is broken down.
Example 2:
as shown in fig. 1,2 and 3, the left side surface of the carrier 1 of the sowing machine is provided with a rolling roller 9 for rolling soil and covering wheat seeds through a transverse shaft, and each rolling roller 9 corresponds to two sowing legs 4 which are designed in a staggered manner.
In this embodiment, the roller 9 is located at the rear position of the advancing path of the seeder, after the seeding legs 4 break the soil and leak the wheat seeds into the soil, the roller 9 will keep up with the soil at each seeding point synchronously, so as to ensure the normal growth of the wheat seeds, and the design of multiple rollers 9 is adopted, mainly for reducing the weight of the whole seeder, i.e. reducing the energy consumption in pulling and the extrusion force to the soil, avoiding the problem that the wheat cannot break due to overlarge extrusion force to the soil, and meanwhile, the roller 9 corresponds to each two seeding legs 4 one by one, so that the accurate earthing of the wheat seeds can be realized.
Example 3:
As shown in fig. 1, 2 and 3, a seed box 11 is arranged on the right side of the top of a bearing frame 1 of the seeder through a side plate 10, a frame plate 12 is arranged at the bottom of the seed box 11 through a fastener, a material conveying hose 13 is arranged at the bottom of the frame plate 12 through a clamp, the bottom of the material conveying hose 13 is inserted into an inner cavity of a fixed leg 2 and is communicated with an inner cavity of a sowing leg 4, a material leakage hole 14 is formed at the bottom of the seed box 11, and a material leakage hole 14 is formed at the top of the frame plate 12 in a penetrating manner;
A through hole 15 is formed in the side surface of the frame plate 12, a rotating shaft 16 is arranged in the inner cavity of the through hole 15 in a penetrating mode, and a feeding roller 20 with the surface equidistantly separated from a recess is sleeved on the outer ring of the rotating shaft 16 in the inner cavity of the through hole 15;
The transverse shaft for installing the milling roller 9 and the outer ring of one rotating shaft 16 are respectively sleeved with a fluted disc 17, the fluted discs 17 are in transmission connection through a chain 18, two ends of the two rotating shafts 16 are installed on the side plate 10 through bearing seats, and the two rotating shafts 16 are in transmission connection through a gear 19.
In this embodiment, during the use, the soaked wheat seeds are directly poured into the seed box 11, then the corresponding actions of embodiment 1 and embodiment 2 can be performed, when the milling roller 9 rotates, the transverse shaft on the milling roller is driven to rotate, then one rotating shaft 16 is driven to rotate through the fluted disc 17 and the chain 18, when the rotating shaft 16 rotates, the other rotating shaft 16 is driven to rotate through the gear 19, when the two rotating shafts 16 rotate, the feeding roller 20 on the rotating shaft 16 is driven to rotate, when the feeding roller 20 rotates, the wheat seeds are quantitatively received through the concave on the feeding roller 20, the wheat seeds flow out from the material leakage holes 14, enter the inner cavity of the sowing leg 4 through the material conveying hose 13, and finally are sowed into the soil.
Example 4:
Based on embodiment 1, the sowing legs 4, the breaking pyramids 8 and the bottom parts of the springs 7 of the sowing machine are all inserted into the soil, when the sowing legs 4 are vibrated up and down due to the soil condition, ice cubes and soil blocks enter between the wires of the inverted springs 7 when the springs 7 are compressed and expanded, the broken ice cubes are pinched off and broken along with the action of the springs 7, the evaporation amount of the broken ice fragments mixed into the inverted soil after later melting can be reduced, the broken ice fragments are absorbed by the wheat seeds, meanwhile, the broken soil can be better attached to the wheat seeds, and the problem that the growth of the wheat seeds is affected due to the fact that gaps between the wheat seeds and the soil are not contacted due to the existence of the soil blocks is avoided.
Example 5:
The bottom ports of the sowing legs 4 and the middle part of the broken pyramid 8 of the sowing machine are positioned on the same horizontal line, so that a certain height difference exists between the sowing legs 4 and the soil when sowing is carried out, and the problem of unsmooth seed discharging caused by blockage can be avoided;
As shown in fig. 5, the wire 21 is inserted through the side surface of the sowing leg 4, when the sowing leg 4 vibrates up and down, the wire 21 moves up and down accordingly, so that the soaked wheat seeds are cut up and down by the wire 21, that is, the wet wheat seeds are not easy to be adhered to each other, the growth is facilitated after sowing, that is, repeated sowing at the same point does not occur, a plurality of seeds struggle for nutrients, and the survival rate of the wheat seeds is reduced.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 stereoplasm wheat broad width precision planter, includes bearing frame (1) with agricultural machinery butt joint installation, its characterized in that: the novel seeding machine is characterized in that fixed legs (2) are mounted on a middle cross beam of the bearing frame (1) through fasteners, seeding legs (4) are inserted into inner cavities of the fixed legs (2), supporting rings (6) are fixedly welded at the lower parts of outer rings of the seeding legs (4), springs (7) are sleeved on the outer rings of the seeding legs (4), and broken pyramids (8) are fixedly welded at the bottoms of the side faces of the seeding legs (4).
2. The hard wheat wide precision planter according to claim 1, characterized in that: the fixing legs (2) are hollow legs, the middle parts of the fixing legs (2) are convex holes (3), and one ends of the sowing legs (4) located in the inner cavities of the fixing legs (2) are provided with limiting rings (5) through fasteners.
3. The hard wheat wide precision planter according to claim 1, characterized in that: two the bottom left side of bearing frame (1) all fixed welding has the support, two install through the cross axle between the support and grind and cover roller (9), and every grind and cover roller (9) all are located two seeding leg (4) right rear position.
4. The hard wheat wide precision planter according to claim 1, characterized in that: the top of the bearing frame (1) is fixedly welded with side plates (10), and a seed box (11) is installed between the two side plates (10) through a bolt fastener.
5. The hard wheat wide precision planter according to claim 4, characterized in that: the bottom of the seed box (11) is provided with a frame plate (12) through a fastener, the bottom of the frame plate (12) is provided with a material conveying hose (13) through a clamp, and the bottom of the material conveying hose (13) is inserted into the inner cavity of the fixed leg (2).
6. The hard wheat wide precision planter according to claim 4, characterized in that: the bottom of the inner wall of the side plate (10) and the top of the frame plate (12) are provided with material leakage holes (14) for wheat planting outflow.
7. The hard wheat wide precision planter according to claim 5, characterized in that: the side of frame plate (12) has seted up through-hole (15), the inner chamber through-connection of through-hole (15) has pivot (16), pivot (16) are located the cover of through-hole (15) inner chamber part and are equipped with feed roll (20).
8. The hard wheat wide precision planter according to claim 7, characterized in that: one of the rotary shafts (16) and the outer ring of the transverse shaft for mounting the milling roller (9) are sleeved with fluted discs (17), two fluted discs (17) are connected through a chain (18) in a transmission manner, two ends of the two rotary shafts (16) are mounted on the side plates (10) through bearing seats, and the two rotary shafts (16) are connected through a gear transmission manner.
CN202410309147.2A 2024-03-19 2024-03-19 Hard wheat broad-width precision planter Pending CN117898078A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410309147.2A CN117898078A (en) 2024-03-19 2024-03-19 Hard wheat broad-width precision planter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410309147.2A CN117898078A (en) 2024-03-19 2024-03-19 Hard wheat broad-width precision planter

Publications (1)

Publication Number Publication Date
CN117898078A true CN117898078A (en) 2024-04-19

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106717194A (en) * 2015-11-23 2017-05-31 陕西吉丰农业科技有限公司 A kind of multi-purpose seeder tool
CN207369567U (en) * 2017-10-25 2018-05-18 中国农业大学 A kind of wheat no-tillage planter
CN210491599U (en) * 2019-08-09 2020-05-12 河南农业职业学院 Automatic seeding device of wheat seeder
CN111316775A (en) * 2018-12-14 2020-06-23 南京农业大学 Wet rotten field rice stubble wheat rotary tillage stubble ploughing fertilization seeding ditching double entry workover rig
RU199360U1 (en) * 2020-03-23 2020-08-28 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" COMBINED SEEDING UNIT
CN112042296A (en) * 2020-09-03 2020-12-08 定西市三牛农机制造有限公司 Multifunctional wheat film side furrow sowing wide-width precision seeder
CN112042292A (en) * 2020-08-28 2020-12-08 农业农村部南京农业机械化研究所 Wheat wide-width uniform sowing device with controllable sowing depth
CN212588777U (en) * 2020-05-27 2021-02-26 李久长 Wheat seeder for agricultural machine
CN112715073A (en) * 2021-02-02 2021-04-30 吉林省农业科学院 Automatic corn seed combined seeder
CN215477135U (en) * 2021-08-06 2022-01-11 河套学院 Wheatgrass seed collection device
CN215529809U (en) * 2020-12-30 2022-01-18 长治市源生有机农林开发有限公司 Greenhouse fruit planting is with device that loosens soil
CN115136773A (en) * 2022-06-08 2022-10-04 泗县伟达农机具有限公司 Rotary tillage fertilization rhizoma corydalis seeder
CN115250686A (en) * 2022-07-22 2022-11-01 河南农业大学 Soybean and corn strip-shaped composite planting fertilizing and seeding machine
CN116868709A (en) * 2023-07-11 2023-10-13 山东省农业科学院作物研究所 Hardening and loosening device for wheat sowing process

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106717194A (en) * 2015-11-23 2017-05-31 陕西吉丰农业科技有限公司 A kind of multi-purpose seeder tool
CN207369567U (en) * 2017-10-25 2018-05-18 中国农业大学 A kind of wheat no-tillage planter
CN111316775A (en) * 2018-12-14 2020-06-23 南京农业大学 Wet rotten field rice stubble wheat rotary tillage stubble ploughing fertilization seeding ditching double entry workover rig
CN210491599U (en) * 2019-08-09 2020-05-12 河南农业职业学院 Automatic seeding device of wheat seeder
RU199360U1 (en) * 2020-03-23 2020-08-28 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" COMBINED SEEDING UNIT
CN212588777U (en) * 2020-05-27 2021-02-26 李久长 Wheat seeder for agricultural machine
CN112042292A (en) * 2020-08-28 2020-12-08 农业农村部南京农业机械化研究所 Wheat wide-width uniform sowing device with controllable sowing depth
CN112042296A (en) * 2020-09-03 2020-12-08 定西市三牛农机制造有限公司 Multifunctional wheat film side furrow sowing wide-width precision seeder
CN215529809U (en) * 2020-12-30 2022-01-18 长治市源生有机农林开发有限公司 Greenhouse fruit planting is with device that loosens soil
CN112715073A (en) * 2021-02-02 2021-04-30 吉林省农业科学院 Automatic corn seed combined seeder
CN215477135U (en) * 2021-08-06 2022-01-11 河套学院 Wheatgrass seed collection device
CN115136773A (en) * 2022-06-08 2022-10-04 泗县伟达农机具有限公司 Rotary tillage fertilization rhizoma corydalis seeder
CN115250686A (en) * 2022-07-22 2022-11-01 河南农业大学 Soybean and corn strip-shaped composite planting fertilizing and seeding machine
CN116868709A (en) * 2023-07-11 2023-10-13 山东省农业科学院作物研究所 Hardening and loosening device for wheat sowing process

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