CN107836164A - A kind of drought-hit area corn drill - Google Patents
A kind of drought-hit area corn drill Download PDFInfo
- Publication number
- CN107836164A CN107836164A CN201711295861.7A CN201711295861A CN107836164A CN 107836164 A CN107836164 A CN 107836164A CN 201711295861 A CN201711295861 A CN 201711295861A CN 107836164 A CN107836164 A CN 107836164A
- Authority
- CN
- China
- Prior art keywords
- seed
- soil
- car body
- drought
- additionally provided
- 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.)
- Granted
Links
Classifications
-
- 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
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/062—Devices for making drills or furrows
-
- 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
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/066—Devices for covering drills or furrows
- A01C5/068—Furrow packing devices, e.g. press wheels
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/18—Machines for depositing quantities of seed at intervals
-
- 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
-
- 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
- A01C7/206—Seed pipes
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/09—Watering arrangements making use of movable installations on wheels or the like
Abstract
A kind of drought-hit area corn drill, it is related to agricultural corn drill and includes car body, Vehicular body front is provided with seeding apparatus, seeding apparatus includes feed mechanism for seed and tire, feed mechanism for seed and described tire are all co-axially located on power transmission shaft, several earthing wheels are provided with power transmission shaft, several seeders are evenly arranged with earthing wheel, seeder includes geotome, soil transport device, soil placer and seed placer, seed-box is additionally provided with earthing wheel, the described seed-box of seed placer connection, water tank is additionally provided with car body, outlet pipe is provided with water tank, outlet pipe is arranged on behind feed mechanism for seed, proportional valve is additionally provided with outlet pipe.Compared with prior art, the beneficial effects of the invention are as follows, corn seed is put into groove while easily groove can be excavated out on hard soil, and confluent is calculated according to soil moisture content, automatic water supplement, and automatically the soil dug out is covered on seed again, suppressed by press wheel, prevent the soil evaporation of water in soil.
Description
Technical field
The present invention relates to agricultural corn drill, particularly a kind of drought-hit area corn drill.
Background technology
Characteristics in Western Semiarid Area of Heilongjiang Province is located at the song-Nen plain in the province west and south, is one of our province major grain producing area, bag
Include Longjiang, Gannan, affluence, Old Taylor, Du Meng, Qiqihar, Lindian, Anda, grand celebration, Zhaodong, Zhaozhou, 12, Zhaoyuan county (city).
Soil types is carbonate meadow chernozem, carbonate meadow soil, salinization or alkali meadow soil, grassy marshland alkali (salt) soil and dust storm
Soil.Belong to middle temperate zone, semiarid continental monsoon climate, be the whole province's heat highest and the relatively small number of area of rainfall, every year
Precipitation is 250~500 mm, and more than 80% concentrates on summer, the 15% of the annual precipitation of winter and spring deficiency.It is known as " 10 years nine
The title of spring drought ".The most significant climatic characteristic in the area, crops seriously inhibit crop in the key period insufficient water of growth
Normal growth and development.The sowing of corn spring turns into problem, existing corn drill, does not examine filter and arrives that market conditions are poor, and site preparation is bad
Many thorny problems for being unfavorable for insemination and emergence such as plot soil hardening, so Corn In Semiarid Area seeder is researched and developed, not only can
The labor intensity of peasant is substantially reduced, improves the emergence rate of seed, and improves the operating efficiency of sowing.
The content of the invention
The present invention is directed to deficiency of the prior art, there is provided a kind of drought-hit area corn drill, the present invention can be in soil
While easily wading out groove on the poor or hard soil of soil moisture content, with measuring soil data according to sensor, according to soil
Soil moisture content carries out moisturizing by calculating the size of confluent（Inventive point, this place you see and how to do under）, when next plough is made
During industry, and corn seed is sown into the groove of drainage, and automatically groove excessively on soil seed is scraped by scraper plate
On, and be compacted simultaneously by press wheel, prevent the soil evaporation of water in soil.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：A kind of drought-hit area corn seeding
Machine, including car body, described Vehicular body front are provided with seeding apparatus, and described seeding apparatus includes feed mechanism for seed and tire, described
Feed mechanism for seed and described tire be all co-axially located on power transmission shaft, several earthing wheels, institute are provided with described power transmission shaft
Several seeders are evenly arranged with the earthing wheel stated, described seeder includes geotome, soil transport device, soil and put
Device and seed placer are put, seed-box, the described seed of described seed placer connection are additionally provided with described earthing wheel
Case, water tank being additionally provided with described car body, outlet pipe being provided with described water tank, described outlet pipe is arranged on described
Behind feed mechanism for seed, electronic quantitative valve is additionally provided with described outlet pipe.
In above-mentioned technical proposal, it is preferred that position-adjustable of the described feed mechanism for seed on described power transmission shaft.
In above-mentioned technical proposal, it is preferred that described geotome includes drill bit, and described drill bit both sides are provided with gear mud
Plate, described soil transport device include transport channel, and described transport channel is included into Tu Kou and soil outlet, and described enters soil
Mouth is arranged on above described drill bit, is provided with blower fan in described transport channel, is additionally provided with described transport channel
Hairbrush roller, described soil placer include folding guide plate, and described folding guide plate is arranged on outside described soil outlet.
In above-mentioned technical proposal, it is preferred that described seed-box is arranged in described earthing wheel, and described seed is placed
Device, which includes placing, manages, and described places the described seed-box of pipe connection, and described places pipe through described transport channel.
In above-mentioned technical proposal, it is preferred that coverer is also added on described car body, described coverer includes two pieces
Trapezoidal iron plate, seat is additionally provided with described car body, described seat is above described coverer, on described car body also
It is provided with the controller of control coverer folding.
In above-mentioned technical proposal, it is preferred that it is corresponding with the feed mechanism for seed to be additionally provided with number of positions on support car body
Hard thing monitor, described hard thing monitor include support block, and described support block is rotatably connected to test bar, described support
The detection spring of the described test bar of connection is additionally provided with cross bar, described detection spring connection elastic force detector is described
Test bar bottom touches ground.
In above-mentioned technical proposal, it is preferred that the hull back is provided with dismountable land presser, and described land presser is
Mobilizable cylindrical shape.
In above-mentioned technical proposal, it is preferred that the described electronic quantitative valve of described elastic force detector connection, described electronics
The elastic information that proportional valve is fed back by described elastic force detector determines opening degree.
The present invention is a kind of corn drill used suitable for nonirrigated farmland, due to soil moisture deficiency, arid plot phase
Harder than normal plot, common earthing wheel, which well can not cover soil, allows seed to enter in the heatable adobe sleeping platform of suitable depth,
Be this present invention by setting drill bit on earthing wheel, by drill bit by hard soil scarifying, facilitate seed kind to enter, at rear portion
Water tank is additionally provided with, what can be quantified is spilled into appropriate water in field.The present invention also has soil transport device, quilt simultaneously
The soil that drill bit is dug can be sucked by soil transport device, and after seed is lower by kind, these soil pass through soil placer
Cover on seed and be automatically performed preliminary earthing work, then carry out complete earthing by coverer again, such earthing more fills
It is real, finally earthing is tamped by land presser.Whole workflow no longer needs manually to participate in, the seed appropriate depth under planting,
Distance is suitable, easily growth.And the present invention also has the automatic water supplement function of being carried out according to soil hardening degree, passes through detection
Rod makes elastic force detector receive the folding amount that different elastic force controls electronic quantitative valve between traveling, if soil is harder, elastic force
The larger then electronic quantitative valve opening degree of elastic force that detector is subject to is big, and the washiness of supplement, vice versa.
Compared with prior art, the beneficial effects of the invention are as follows：Groove can be easily excavated out on hard soil
While corn seed is put into groove, and automatically the soil dug out is covered on seed again.
Brief description of the drawings
Fig. 1 is seeder side schematic view of the present invention.
Fig. 2 is seeding apparatus front schematic view of the present invention.
Fig. 3 is hard thing monitor schematic diagram of the invention.
Embodiment
The present invention is described in further detail with reference to embodiment and accompanying drawing.
Embodiment 1：As shown in Figure 1 to Figure 3, a kind of drought-hit area corn drill, including car body 1, the described front portion of car body 1 are set
Seeding apparatus is equipped with, described seeding apparatus includes feed mechanism for seed 11 and tire 12, described feed mechanism for seed 11 and described tire 12
All it is co-axially located on power transmission shaft 13, position-adjustable of the described feed mechanism for seed 11 on described power transmission shaft 22.Described biography
Several earthing wheels 3 are provided with moving axis, several seeders 4, described seeder are evenly arranged with described earthing wheel 3
4 include geotome 5, soil transport device 6, soil placer and seed placer, and seed is additionally provided with described earthing wheel 3
Case 31, the described seed-box 31 of described seed placer connection.Water tank 2, described water tank are additionally provided with described car body 1
Outlet pipe 21 is provided with 2, described outlet pipe 21 is arranged on behind described feed mechanism for seed 11, also set in described outlet pipe 21
It is equipped with electronic quantitative valve.Described geotome 5 includes drill bit 51, and the described both sides of drill bit 51 are provided with mud guard 52, described
Soil transport device 6 includes transport channel 69, and described transport channel 69 is included into native mouth 61 and soil outlet 62, and described enters soil
Mouth 61 is arranged on the described top of drill bit 51, and blower fan 64 and hairbrush roller 63 are provided with described transport channel 69, described
Soil placer include fold guide plate 7, described foldings guide plate 7 be arranged on described in soil outlet 62 outside.Described kind
Sub- case 31 is arranged on described earthing wheel both side surface, and described seed placer includes placing pipe 32, described placement pipe 32
The described seed-box 31 of connection, described placement pipe 32 pass through described transport channel 69.
Coverer 3 is also added on described car body 1, described coverer 3 includes two pieces of trapezoidal iron plates, described car body
Seat 15 is additionally provided with 1, described seat 15 is additionally provided with control above described coverer 3, on described car body 1 and covered
The controller 31 of the folding of earthenware 3.The number of positions hard thing monitor 8 corresponding with the earthing wheel 3 is additionally provided with car body 1,
Described hard thing monitor 8 includes support block 81, and described support block is rotatably connected to test bar 82, described support rail 2
On be additionally provided with the detection spring 83 of the described test bar 82 of connection, described detection spring 83 connection elastic force detector 84, institute
The bottom of test bar 82 stated touches ground.The afterbody of car body 1 is provided with dismountable land presser 14, described land presser 14
For mobilizable cylindrical shape.Described elastic force detector 84 connects described electronic quantitative valve, and described electronic quantitative valve passes through
The elastic information that described elastic force detector 84 is fed back determines opening degree.
In use, first determining the spacing of feed mechanism for seed 11 according to actual conditions, car body 1 is then run, allows car body 1 to reach
Dynamic, now earthing wheel 3 also moves forward under the drive of power transmission shaft 22.Drill bit 51 begins to break ground to be formed after touching ground
Seed is cheated, and because the rotating speed of drill bit 51 is fast, the soil broken can splash, and now mud guard 52 can prevent soil to surrounding
Spread, there is blower fan 64 soil of splashing can be drawn into transport channel 69 in transport channel 69, then soil hair
Brush roller 63 goes to soil outlet 62, is covered in again on seed hole at soil outlet by folding guide plate 7.Covered again in soil
Before covering seed hole, seed hole will be naturally fallen in by gravity by being in the seed placed in pipe 32.Thus can be extensive
Carry out seed plantation work.Simultaneously in the presence of water tank 2, water is directly applied in ditch dug with a plow by outlet pipe 21, increases soil
Earth pondage, ensure that water does not spill over ditch dug with a plow, while ensure that water outlet infiltration capacity causes the earth pillar of about 10 centimetres of ditch dug with a plow interior diameter to satisfy
With.And the function with the automatic outletting carried out according to soil hardening degree during 21 water outlet of outlet pipe, its cardinal principle is to pass through
Test bar 82 makes elastic force detector 84 feed back to electronic quantitative valve by different elastic force and then by elastic force signal between traveling, electricity
Sub- proportional valve controls folding amount according to elastic force signal, if soil is harder, the elastic force that elastic force detector is subject to is larger, and electronics is determined
Amount valve opening degree is big, and the washiness of supplement, vice versa.Average moisturizing can be thus carried out to soil.During next operation spoke,
Water filling of ditching again is ploughed, and it is relatively wet in adjacent ditch dug with a plow but not muddy.After having sowed, it can be covered by coverer 3
Soil, because someone on the seat 15 of the top of coverer 3, is not only convenient for people and sowing situation is monitored, while the weight of people itself
Power pushes, moreover it is possible to ensures earthing amount.Suppressed finally by land presser 14, the Liang Genla pavilions of land presser 14 are connected with car body 1, can
Transfer, walked detachable or propped up.Because drill bit 51 will damage after running into hard thing, in order to prevent drill bit 51 touch compared with
Big stone, hard thing monitor 8 is also set on support rail 2, before these hard thing monitors 8 are all with earthing wheel 3 is located at just
The test bar 82 of side, once rubble or lump can not be discharged by being run on forward road, test bar 82 will be by these rubbles
With or lump touch curved, now detection spring 83, which is pressurized, causes elastic force detector 84 to obtain signal and stop by the drill bit on earthing wheel 3
Rotation stop is moved, and is being continued to run with certain time after the no feedback of elastic force detector 84.
Claims (8)
1. a kind of drought-hit area corn drill, including car body（1）, described car body（1）Front portion is provided with seeding apparatus, its feature
For described seeding apparatus includes feed mechanism for seed（11）And tire（12）, described feed mechanism for seed（11）With described tire（12）All
It is co-axially located at power transmission shaft（13）On, described power transmission shaft（13）On be provided with several earthing wheels（3）, described earthing wheel
（3）On be evenly arranged with several seeders（4）, described seeder（4）Including geotome（5）, soil transport device（6）、
Soil placer and seed placer, described earthing wheel（3）On be additionally provided with seed-box（31）, described seed placer connects
Connect described seed-box（31）, described car body（1）On be additionally provided with water tank（2）, described water tank（2）On be provided with outlet pipe
（21）, described outlet pipe（21）It is arranged on described feed mechanism for seed（11）Below, described outlet pipe（21）Inside it is additionally provided with electricity
Sub- proportional valve.
2. a kind of drought-hit area corn drill according to claim 1, it is characterized in that, described feed mechanism for seed（11）Described
Power transmission shaft（22）On position-adjustable.
3. a kind of drought-hit area corn drill according to claim 1, it is characterized in that, described geotome（5）Including drill bit
（51）, described drill bit（51）Both sides are provided with mud guard（52）, described soil transport device（6）Including transport channel
（69）, described transport channel（69）Including entering Tu Kou（61）And soil outlet（62）, described enters Tu Kou（61）It is arranged on described
Drill bit（51）Top, described transport channel（69）Inside it is provided with blower fan（64）, described transport channel（69）Inside also set
It is equipped with hairbrush roller（63）, described soil placer is including folding guide plate（7）, described folding guide plate（7）It is arranged on
Described soil outlet（62）Outside.
4. a kind of drought-hit area corn drill according to claim 3, it is characterized in that, described seed-box（31）It is arranged on institute
The earthing wheel stated（3）Interior, described seed placer, which includes placing, manages（32）, described placement pipe（32）The described seed of connection
Case（31）, described placement pipe（32）Through described transport channel（69）.
5. a kind of drought-hit area corn drill according to claim 1, it is characterized in that, described car body（1）On also add
Coverer（3）, described coverer（3）Including two pieces of trapezoidal iron plates, described car body（1）On be additionally provided with seat（15）, institute
The seat stated（15）In described coverer（3）Top, described car body（1）On be additionally provided with control coverer（3）Folding
Controller（31）.
6. a kind of drought-hit area corn drill according to claim 1, it is characterized in that, support car body（1）On be additionally provided with position
Put the quantity hard thing monitor corresponding with the feed mechanism for seed（8）, described hard thing monitor（8）Including support block（81）, institute
The support block stated（81）It is rotatably connected to test bar（82）, described support rail（2）On be additionally provided with the described detection of connection
Rod（82）Detection spring（83）, described detection spring（83）Connect elastic force detector（84）, described test bar（82）Bottom
Portion touches ground.
7. a kind of drought-hit area corn drill according to claim 1, it is characterized in that, the car body（1）Afterbody is provided with can
The land presser of dismounting（14）, described land presser（14）For mobilizable cylindrical shape.
8. a kind of drought-hit area corn drill according to claim 6, it is characterized in that, described elastic force detector（84）Connection
Described electronic quantitative valve, described electronic quantitative valve pass through described elastic force detector（84）The elastic information fed back determines
Opening degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711295861.7A CN107836164B (en) | 2017-12-08 | 2017-12-08 | Corn planter for dry area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711295861.7A CN107836164B (en) | 2017-12-08 | 2017-12-08 | Corn planter for dry area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107836164A true CN107836164A (en) | 2018-03-27 |
| CN107836164B CN107836164B (en) | 2020-05-01 |
Family
ID=61664049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711295861.7A Expired - Fee Related CN107836164B (en) | 2017-12-08 | 2017-12-08 | Corn planter for dry area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107836164B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401614A (en) * | 2018-04-13 | 2018-08-17 | 四川农业大学 | A kind of corn drill hole irrigation system and method |
| CN112640621A (en) * | 2020-12-24 | 2021-04-13 | 山西运城农业职业技术学院 | Seeding device capable of changing wheat seeding depth |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485249A (en) * | 2009-03-04 | 2009-07-22 | 郝春昌 | Seeding machine for moisture conservation |
| CN204482267U (en) * | 2014-09-24 | 2015-07-22 | 何文杰 | A kind of agricultural vegetables plant seedling puncher |
| CN105075468A (en) * | 2015-08-06 | 2015-11-25 | 袁东明 | Multifunctional self-propelled furrow forming and sowing machine |
| CN204907065U (en) * | 2015-08-06 | 2015-12-30 | 袁东明 | Multi -functional self -propelled pressure ditch seeder |
| CN107148826A (en) * | 2017-06-16 | 2017-09-12 | 青岛河澄知识产权有限公司 | A kind of hand propelled automatic spacing mixed seeding device |
| CN206725369U (en) * | 2017-05-04 | 2017-12-08 | 四川中土检测检验有限公司 | A kind of Portable multifunctional soil testing assemblies |
-
2017
- 2017-12-08 CN CN201711295861.7A patent/CN107836164B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485249A (en) * | 2009-03-04 | 2009-07-22 | 郝春昌 | Seeding machine for moisture conservation |
| CN204482267U (en) * | 2014-09-24 | 2015-07-22 | 何文杰 | A kind of agricultural vegetables plant seedling puncher |
| CN105075468A (en) * | 2015-08-06 | 2015-11-25 | 袁东明 | Multifunctional self-propelled furrow forming and sowing machine |
| CN204907065U (en) * | 2015-08-06 | 2015-12-30 | 袁东明 | Multi -functional self -propelled pressure ditch seeder |
| CN206725369U (en) * | 2017-05-04 | 2017-12-08 | 四川中土检测检验有限公司 | A kind of Portable multifunctional soil testing assemblies |
| CN107148826A (en) * | 2017-06-16 | 2017-09-12 | 青岛河澄知识产权有限公司 | A kind of hand propelled automatic spacing mixed seeding device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401614A (en) * | 2018-04-13 | 2018-08-17 | 四川农业大学 | A kind of corn drill hole irrigation system and method |
| CN112640621A (en) * | 2020-12-24 | 2021-04-13 | 山西运城农业职业技术学院 | Seeding device capable of changing wheat seeding depth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107836164B (en) | 2020-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102204431B (en) | Soil-throwing type all profiling film laminating machine capable of pressing film vertically and horizontally and performing rotary tillage of earth surface | |
| CN207665436U (en) | Combine is broadcasted sowing in a kind of site preparation subsoiling layer by layer manuring | |
| CN107836164A (en) | A kind of drought-hit area corn drill | |
| CN109729770A (en) | A kind of rape Multifunctional duplex all-in-one machine | |
| CN202085460U (en) | Soil throwing and excavating type fully copying film covering machine for longitudinal film pressing and transverse film pressing of rotary cultivating earth surface | |
| CN206302737U (en) | A kind of granular fertilizers bury formula fertilizer applicator | |
| CN201533488U (en) | Precision seeder for deep furrow scarifying, multi-layer fertilizing and water replenishing | |
| CN209218596U (en) | A kind of multi-functional seeding plough | |
| CN108496433A (en) | A kind of modern agriculture intelligence corn seeding machinery device | |
| CN204741708U (en) | Chinese yam seeding and fertilizing machine | |
| CN208691719U (en) | A kind of fertilizing seeding mulching machine for maize | |
| CN207400066U (en) | A kind of multi-functional cotton seed-sowing machine | |
| CN110583172A (en) | Seeding machine | |
| CN110393048A (en) | The clean zone shape seeding combined working machine of rape rotary tillage ditching fertilising | |
| CN105532143A (en) | Potato planter | |
| CN104938069A (en) | Total film mulching sowing machine | |
| JP4053063B2 (en) | Soil improvement machine | |
| CN105830600A (en) | Potato planting machine | |
| CN105830599A (en) | Potato planting machine | |
| CN108551815A (en) | A kind of overlay film precision crawler belt hill-drop drill | |
| Halvorson | Role of cropping systems in environmental quality: saline seep control | |
| CN206380264U (en) | Highland barley seeder | |
| McLaughlin et al. | Draft requirements for contrasting liquid manure injection equipment | |
| CN205510807U (en) | Potato planter | |
| CN2914620Y (en) | A soybean and corn seeds sowing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200501 Termination date: 20201208 |