CN202524728U - Stubble cleaning, rotary tillage and multi-layer fertilization seeder - Google Patents
Stubble cleaning, rotary tillage and multi-layer fertilization seeder Download PDFInfo
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- CN202524728U CN202524728U CN2012201856612U CN201220185661U CN202524728U CN 202524728 U CN202524728 U CN 202524728U CN 2012201856612 U CN2012201856612 U CN 2012201856612U CN 201220185661 U CN201220185661 U CN 201220185661U CN 202524728 U CN202524728 U CN 202524728U
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- 238000004140 cleaning Methods 0.000 title claims abstract description 13
- 230000004720 fertilization Effects 0.000 title abstract description 7
- 239000003337 fertilizer Substances 0.000 claims abstract description 85
- 238000010899 nucleation Methods 0.000 claims abstract description 39
- 239000002689 soil Substances 0.000 claims abstract description 20
- 230000001629 suppression Effects 0.000 claims description 26
- 238000009332 manuring Methods 0.000 claims description 10
- 230000033228 biological regulation Effects 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
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- 229920000742 Cotton Polymers 0.000 abstract description 3
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- 235000009973 maize Nutrition 0.000 abstract 1
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- 239000010871 livestock manure Substances 0.000 description 5
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- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000009313 farming Methods 0.000 description 2
- 229940088597 hormone Drugs 0.000 description 2
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- 235000015097 nutrients Nutrition 0.000 description 2
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Abstract
The utility model discloses a stubble cleaning, rotary tillage and multi-layer fertilization seeder, and relates to the technical field of seeders. The stubble cleaning, rotary tillage and multi-layer fertilization seeder comprises a gear box, a main machine frame and a fertilization device assembly, and is characterized in that a seeding-row stubble cleaning knife shaft assembly, a disc type rotary tillage knife shaft assembly, a profile modeling land wheel assembly, an arc-shaped deep scarification knife and multi-layer fertilizer applicator assembly, a wheel type compaction ditcher assembly and a seeding device assembly are fixed on the main machine frame from right to left in sequence. The knife shaft of the seeding-row stubble cleaning knife shaft assembly is connected with that of the disc type rotary tillage knife shaft assembly through the gear box, and the profile modeling land wheel assembly supplies power for the fertilizer applicator in the fertilization device assembly and the seed-metering device on the seeding device assembly. The seeder enlarges the application range, improves utilization efficiency, is suitable for high-efficiency fertilization and seeding of such cultivated crops as maize, cotton, soybean and sunflower, is insensitive to soil tilth and quantity of roots and stubbles, and has high operation efficiency.
Description
Technical field
The utility model relates to technical field of seeders.
Background technology
The facility that are used for the intertillage crop ferti-seeding both at home and abroad have a lot, are main with large-scale facility abroad, cost an arm and a leg, and domestic is main with middle-size and small-size facility, though cheap, functional effect is relatively poor.In the plot operation that the previous crops toothing is high, the stalk amount is big, stalk twines the problem ubiquity, makes existing sower smooth and easyly to work continuously, and is seriously limiting the production efficiency and the seeding quality of sower.
At present, combined seed and fertilizer drill both domestic and external, fertilization depth are generally more shallow, most not enough 10cm; Because fertilizer and seed hypotelorism, the disconnected ridge problem of being short of seedling that base fertilizer burning seedling causes is general and serious, burns seedling in order to prevent chemical fertilizer; Can only adopt the base fertilizer Shaoshi, the method that gradation is topdressed can't satisfy the super high-yielding specification requirement of disposable efficient fertilising; Under rural laborer's background in short supply, gradation is topdressed and often is difficult to implement, and the high crop yield potentiality are difficult to bring into play.
The loss of shallow-layer fertilizing nutrient face of land volatilization runoff is bigger, and utilization rate of fertilizer is lower, and 10-30cm root system dense layer nutrient can't replenish; The less nutritive element of mobility such as phosphorus particularly; Subsoil seriously exhausts, the middle and later periods crop bigger because of malnutritive early ageing underproduction amplitude, if these problems can not effectively solve; Crop yield is difficult to make a breakthrough, and the liquid manure utilization rate of fertilizer can't improve.
Under the bad condition of soil moisture content, unclamp ditch deeply after soil can not fall after rise rapidly, the fertilizer upper strata is very few, following stratum proportion is excessive; Seedling stage, growing way was relatively poor, and in overdrying plot operation really up to the mark, resistance is excessive, and large clod is more; Kind of bed is second-rate, and leakage sowing rate is higher, sow deep mixedly, and it is irregular heavier with the ridge phenomenon of breaking of being short of seedling to emerge; In sticking wet heavily excessively plot operation, Shen Songgou can not make up, and disk coulter and suppression of soil wheel clay are serious, and sowing depth is difficult to control; Have a strong impact on and emerge and the fertilizer layered effect, disk coulter and the dislocation of dark pine bed are planted the bed injustice and are also caused sowing deep mixed, high-order seeding; Landing error increases has all influenced the evenness and the regularity of emerging, if these problems can not finely solve, the dark loose whole layer placement of fertilizer advantage of corn will be difficult to give full play to.
The utility model content
The utility model technical problem to be solved provides a kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill, can realize that a multilayer fertilising and stubble-cleaning, rotary tillage, sowing work continuously, and efficient is higher.
For solving the problems of the technologies described above; The technical scheme that the utility model is taked is: a kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill; Comprise gearbox, mainframe, fertilizer apparatus assembly; It is characterized in that being fixed with successively from right to left on the mainframe: plant row stubble ploughing knife pivot assembly, disc type rotary ploughing cutter shaft assembly, profiling ground wheel assembly, the dark loose cutter of arc and layer by layer manuring device assembly, wheeled suppression furrower assembly and seeding apparatus assembly; The cutter shaft of kind of row stubble ploughing knife pivot assembly is connected with gearbox with the cutter shaft of disc type rotary ploughing cutter shaft assembly, profiling the fertilizer applicator in wheel assembly and the fertilizer apparatus assembly be connected with seeding unit on the seeding apparatus assembly.
The further scheme of the utility model is: said sower also comprises the equal thickness suppression of soil device that is fixed on seeder profiling frame left side.
Stubble-cleaning cutter on the said kind row stubble ploughing knife pivot assembly is a T-shape.
The outer rim of rotary tillage dish is for intending zigzag in the said disc type rotary ploughing cutter shaft assembly, and rotary blade is fixed on the crown, and the blade of rotary blade is parallel with the excircle tangent line of rotary tillage dish; Or the outer rim of rotary tillage dish is circular, and rotary blade is fixed on the both sides of rotary tillage dish, and the blade of rotary blade is vertical with rotary tillage dish excircle tangent line.
Dark loose cutter of said arc and layer by layer manuring device assembly comprise dark loose cutter of arc and anti-blocking multilayer fertilizer applicator; Said anti-blocking multilayer fertilizer applicator comprises fertilizer guiding tube, the anti-blocking fertilizer-guiding plate of layering and fertilizer guiding groove; The anti-blocking fertilizer-guiding plate of layering is connected with fertilizer guiding groove by bearing pin; Can rotate up and down, or the anti-blocking fertilizer-guiding plate of layering is located in the fertilizer guiding groove crack of cracking, the both sides of fertilizer guiding groove.
Seeder profiling frame on the seeding apparatus assembly is fixedly connected with mainframe through elastomeric element.
Fertilizer can on the fertilizer apparatus assembly is barrel-shaped, in said fertilizer can, is provided with screen cloth, is provided with the fertilizing amount regulation device at the fertilizer outlet place.
Land axle on the said profiling ground wheel assembly is fixedly connected with mainframe with elastomeric element through connecting rod.
Wheeled suppression furrower assembly comprises flat ditch device and wheeled suppression plough, and said flat ditch device is fixed on the right side of wheeled suppression plough and is connected with layer by layer manuring device assembly with the dark loose cutter of arc.
Said seeding apparatus assembly is provided with drag chain and low level seeding positioner.
Adopt the beneficial effect that technique scheme produced to be: at first; Through using stubble-cleaning cutter and rotary blade that seed bed is carried out stubble-cleaning and rotary tillage processing; Eliminate stalk and soil block, then, further dark loose to seed bed through dark loose cutter of arc and layer by layer manuring device assembly; And with in the soil of the disposable layering of fertilizer after the rotary tillage; Secondly through the flat smooth bed surface of ditch device, open seed furrow with wheeled suppression plough again, use at last the seeding apparatus assembly with seed by the spacing in the rows monoseeding that designs in kind of bed ditch.
Said sower adopts sowing row upper strata stubble ploughing, rotary tillage, and lower floor is guaranteeing under the prerequisite of dark loose effect with the cultivated perfect square formula of the dark pine of the dark loose cutter of arc; Reduce dark loose resistance, it is in small, broken bits to reach upper layer of soil, and soil is mobile to be strengthened; The fertilizer layered effect is best, guarantees that single fertilization can not burn the effect of seedling; Utilize wheeled suppression plough to mould smooth kind bed, utilize low level seeding positioner to reduce seeding drop and sowing evenness, utilize flat ditch device and wheeled suppression plough to combine, ensure that the seed thickness of earth covering is consistent, improve the regularity of emerging; Fertilizer can is designed to tubular, when increasing capacity, reduces consumptive material and box weight; And the resistance to compression deformation intensity of raising casing, screen cloth is set in the case, blocking-up caking fertilizer and foreign material get at the bottom of the case; The guarantee fertilizer is unobstructed, and fertilizing amount is established two grades by super high-yielding requirement design; Accurately regulate and control through the sprocket wheel speed ratio, guarantee that fertilizing amount is accurate.
Through optimal design, the compact conformation of said sower, technological integration and effect improve.Under the condition that power consumption does not increase considerably, the function of sower is expanded to some extent, can the whole farm works of disposable completion, improved operating efficiency; The scope of application is widened, and utilization ratio improves, and is not only applicable to corn, also is applicable to the efficient ferti-seeding of intertillage crop such as cotton, soybean, sunflower, and what are insensitive to soil moisture content quality, root stubble, and operating efficiency is high; Use said sower operation, when eliminating face of land root stubble and tillage pan obstacle, the kind bed is in small, broken bits smooth; The hot microbial environment of the dark root system dense layer of 0-30cm liquid manure gas is improved; Promote root system development, improved the suction of crop and inhaled fertilizer and anti-adversity ability, when the liquid manure utilization ratio improves; Root system vigor and hormone production capacity strengthen, and have improved assurance for simplifying the super high-yielding target; Use said sower ferti-seeding, full season fertilizer disposable employed, do not exist yet and burn the seedling risk; Can adopt simple grain Precision Seeding technology; Without thinning, also need not topdress, frequency of irrigation reduces, thereby has simplified the farming operation link; Economize plant, saves trouble, saving of labor, water-saving, economical, and can satisfy crop super high-yielding needs.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of anti-blocking multilayer fertilizer applicator in the utility model;
Fig. 3 is the structural representation of planting row stubble ploughing knife pivot assembly in the utility model;
Wherein: 1; Plant row stubble ploughing knife pivot assembly 2; Disc type rotary ploughing cutter shaft assembly 3; The dark loose cutter 4 of arc; Anti-blocking multilayer fertilizer applicator 5; Wheeled suppression plough 6; Flat ditch device 7; Fertilizer can 8; Screen cloth 9; Fertilizing amount regulation device 10; Seeder profiling frame 11; The accurate control device 12 of spacing in the rows; Low level seeding positioner 13; Equal thickness suppression of soil device 14; Gearbox 15; Profiling ground wheel assembly 16; Mainframe 17; Drag chain 18; Seed-box 19; Fertilizer guiding tube 20; The anti-blocking fertilizer-guiding plate 21 of layering; Fertilizer guiding groove 22; Connecting rod 23; Elastomeric element 24; Stubble-cleaning cutter 25; Blade.
Embodiment
Shown in Fig. 1-2; A kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill; Comprise gearbox 14, mainframe 16, fertilizer apparatus assembly; Be fixed with successively from right to left on the mainframe 16: plant row stubble ploughing knife pivot assembly 1, disc type rotary ploughing cutter shaft assembly 2, profiling ground wheel assembly 15, the dark loose cutter of arc and layer by layer manuring device assembly, wheeled suppression furrower assembly and seeding apparatus assembly; Plant the cutter shaft of row stubble ploughing knife pivot assembly 1 and the cutter shaft of disc type rotary ploughing cutter shaft assembly 2 and be connected with gearbox 14, profiling ground wheel assembly 15 provides power for fertilizer applicator and the seeding unit on the seeding apparatus assembly in the fertilizer apparatus assembly, and profiling ground wheel assembly 15 is fixed on the A place of mainframe 16.
Said sower also comprises the equal thickness suppression of soil device 13 that is fixed on seeder profiling frame 10 left sides, and equal thickness suppression of soil device 13 is the suppression of soil wheel.Said equal thickness suppression of soil device 13 can also be a plank frame, as long as can play face of land earthing is covered concora crush in fact, and soil is preserved soil moisture, and the effect that helps emerging gets final product.As shown in Figure 3, the stubble-cleaning cutter 24 on the said kind row stubble ploughing knife pivot assembly 1 is a T-shape, can be thoroughly with Ex-all of root stubble and pulverizing.The outer rim of rotary tillage dish is for intending zigzag in the said disc type rotary ploughing cutter shaft assembly, and rotary blade is fixed on the crown, and the blade of rotary blade is parallel with the excircle tangent line of rotary tillage dish; Or the outer rim of rotary tillage dish is circular, and rotary blade is fixed on the both sides of rotary tillage dish, and the blade of rotary blade is vertical with rotary tillage dish excircle tangent line.Dark loose cutter of said arc and layer by layer manuring device assembly comprise dark loose cutter 3 of arc and anti-blocking multilayer fertilizer applicator 4; Said anti-blocking multilayer fertilizer applicator comprises fertilizer guiding tube 19, the anti-blocking fertilizer-guiding plate 20 of layering and fertilizer guiding groove 21; The anti-blocking fertilizer-guiding plate 20 of layering is connected with fertilizer guiding groove 21 by bearing pin; Can rotate up and down, or the anti-blocking fertilizer-guiding plate 20 of layering is located in the fertilizer guiding groove 21 crack of cracking, the both sides of fertilizer guiding groove 21.
Seeder profiling frame 10 on the seeding apparatus assembly is fixedly connected with mainframe 16 through elastomeric element 23.Fertilizer can 7 on the fertilizer apparatus assembly is barrel-shaped, in said fertilizer can 7, is provided with screen cloth 8, is provided with fertilizing amount regulation device 9 at the fertilizer outlet place.Land axle on the said profiling ground wheel assembly 15 is fixedly connected with mainframe 16 with elastomeric element 23 through connecting rod 22.Wheeled suppression furrower assembly comprises flat ditch device 6 and wheeled suppression plough 5, and said flat ditch device 6 is fixed on the right side of wheeled suppression plough 5 and is connected with the dark loose cutter 3 of arc.Said seeding apparatus assembly is provided with drag chain 17 and low level seeding positioner 12.
Plant row stubble ploughing knife pivot assembly 1 and be connected (dismantled and assembled) with the mainframe 16 of sower; Drive by tractor output shaft is unified; The dark loose cutter of arc is connected with mainframe with the left part of layer by layer manuring device assembly at disc type rotary ploughing cutter shaft assembly 2; Flat ditch device 6 articulates with seeder profiling frame 10 and the dark loose cutter 3 of arc; The tubular fertilizer can is fixed on the auxiliary girder of mainframe 16, and wheeled suppression plough 5 is connected with seeder profiling frame 10 and through elastomeric element regulation and control kind of the bed degree of depth, seeder profiling frame 10 realizes the supercharging profiling through the elastomeric element that is connected with the auxiliary girder of mainframe; Land wheel is connected with the girder of mainframe through frame, and the height profiling is controlled through the elastomeric element 23 that is connected with connecting rod 22, and the steady and land wheel of guarantee complete machine successively rotates, and realizes continuous seeding fertilizer.Low level seeding positioner 12 is that tubulose is connected with seeding unit with drag chain 17; Unified being fixed on the seeder profiling frame 10; Equal thickness suppression of soil device 13 is connected the afterbody of seeder profiling frame 10 through the bracing frame on it; Sowing depth is by the dial indication of seeder profiling frame afterbody, and is fixing with the alignment pin regulation and control.
The cutter shaft of planting on the row stubble-cleaning combination cutter shaft assembly 1 is connected with gear-box side flaw-piece belt wheel, and the cutter shaft on the disc type rotary ploughing cutter shaft assembly 2 is connected with the gearbox intermediate gear shaft; Fertilizer applicator and seeding unit provide power by the land axle on the profiling ground wheel assembly 15, and unified the driving passed through the transmission of sprocket system speed change by fertilizing amount and seeding quantity.
Through optimal design, the compact conformation of said sower, technological integration and effect improve.Under the condition that power consumption does not increase considerably, the function of sower is expanded to some extent, can the whole farm works of disposable completion, improved operating efficiency; The scope of application is widened, and utilization ratio improves, and is not only applicable to corn, also is applicable to the efficient ferti-seeding of intertillage crop such as cotton, soybean, sunflower, and what are insensitive to soil moisture content quality, root stubble, and operating efficiency is high; Use said sower operation, when eliminating face of land root stubble and tillage pan obstacle, the kind bed is in small, broken bits smooth; The hot microbial environment of the dark root system dense layer of 0-30cm liquid manure gas is improved; Promote root system development, improved the suction of crop and inhaled fertilizer and anti-adversity ability, when the liquid manure utilization ratio improves; Root system vigor and hormone production capacity strengthen, and have improved assurance for simplifying the super high-yielding target; Use said sower ferti-seeding, full season fertilizer disposable employed, do not exist yet and burn the seedling risk; Can adopt simple grain Precision Seeding technology; Without thinning, also need not topdress, frequency of irrigation reduces, thereby has simplified the farming operation link; Economize plant, saves trouble, saving of labor, water-saving, economical, and can satisfy crop super high-yielding needs.
Claims (10)
1. stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill; Comprise gearbox (14), mainframe (16), fertilizer apparatus assembly; It is characterized in that being fixed with successively from right to left on the mainframe (16): plant row stubble ploughing knife pivot assembly (1), disc type rotary ploughing cutter shaft assembly (2), profiling ground wheel assembly (15), the dark loose cutter of arc and layer by layer manuring device assembly, wheeled suppression furrower assembly and seeding apparatus assembly; Cutter shaft and the cutter shaft of disc type rotary ploughing cutter shaft assembly (2) of kind of row stubble ploughing knife pivot assembly (1) are connected with gearbox (14), profiling the fertilizer applicator in wheel assembly (15) and the fertilizer apparatus assembly be connected with seeding unit on the seeding apparatus assembly.
2. a kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill according to claim 1 is characterized in that said sower also comprises the equal thickness suppression of soil device (13) that is fixed on seeder profiling frame (10) left side.
3. a kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill according to claim 1 and 2 is characterized in that the stubble-cleaning cutter (24) on the said kind row stubble ploughing knife pivot assembly (1) is a T-shape.
4. a kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill according to claim 1 and 2; The outer rim that it is characterized in that rotary tillage dish in the said disc type rotary ploughing cutter shaft assembly (2) is for intending zigzag; Rotary blade is fixed on the crown, and the blade of rotary blade is parallel with the excircle tangent line of rotary tillage dish; Or the outer rim of rotary tillage dish is circular, and rotary blade is fixed on the both sides of rotary tillage dish, and the blade of rotary blade is vertical with rotary tillage dish excircle tangent line.
5. a kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill according to claim 1 and 2; It is characterized in that dark loose cutter of said arc and layer by layer manuring device assembly comprise dark loose cutter of arc (3) and anti-blocking multilayer fertilizer applicator (4); Said anti-blocking multilayer fertilizer applicator comprises fertilizer guiding tube (19), the anti-blocking fertilizer-guiding plate of layering (20) and fertilizer guiding groove (21); The anti-blocking fertilizer-guiding plate of layering (20) is connected with fertilizer guiding groove (21) by bearing pin; Can rotate up and down, or the anti-blocking fertilizer-guiding plate of layering (20) is located in the fertilizer guiding groove (21) crack of cracking, the both sides of fertilizer guiding groove (21).
6. a kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill according to claim 1 and 2 is characterized in that the seeder profiling frame (10) on the seeding apparatus assembly is fixedly connected with mainframe (16) through elastomeric element (23).
7. a kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill according to claim 1 and 2; It is characterized in that the fertilizer can (7) on the fertilizer apparatus assembly is barrel-shaped; In said fertilizer can (7), be provided with screen cloth (8), be provided with fertilizing amount regulation device (9) at the fertilizer outlet place.
8. a kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill according to claim 1 and 2 is characterized in that the land axle on the said profiling ground wheel assembly (15) is fixedly connected with mainframe (16) with elastomeric element (23) through connecting rod (22).
9. according to a kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill shown in claim 1 or 2; It is characterized in that wheeled suppression furrower assembly comprises flat ditch device (6) and wheeled suppression plough (5), said flat ditch device (6) is fixed on the right side of wheeled suppression plough (5) and is connected with layer by layer manuring device assembly with the dark loose cutter of arc.
10. a kind of stubble ploughing, rotary tillage multilayer combined seed and fertilizer drill according to claim 1 and 2 is characterized in that said seeding apparatus assembly is provided with drag chain (17) and low level seeding positioner (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201856612U CN202524728U (en) | 2012-04-27 | 2012-04-27 | Stubble cleaning, rotary tillage and multi-layer fertilization seeder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201856612U CN202524728U (en) | 2012-04-27 | 2012-04-27 | Stubble cleaning, rotary tillage and multi-layer fertilization seeder |
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| Publication Number | Publication Date |
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| CN202524728U true CN202524728U (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201856612U Expired - Lifetime CN202524728U (en) | 2012-04-27 | 2012-04-27 | Stubble cleaning, rotary tillage and multi-layer fertilization seeder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102626009A (en) * | 2012-04-27 | 2012-08-08 | 薛世川 | Multilayer stubble-cleaning rotary-cultivation fertilizing seeding machine |
| CN104170551A (en) * | 2014-09-01 | 2014-12-03 | 山西农业大学 | Integral type non-tillage sowing boot |
| CN104718846A (en) * | 2015-03-17 | 2015-06-24 | 中国农业大学 | Furrowing machine with soil screening device |
| CN103583128B (en) * | 2013-11-11 | 2016-02-10 | 黑龙江八一农垦大学 | Polynary fertilizer associating fertilizer distributor |
-
2012
- 2012-04-27 CN CN2012201856612U patent/CN202524728U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102626009A (en) * | 2012-04-27 | 2012-08-08 | 薛世川 | Multilayer stubble-cleaning rotary-cultivation fertilizing seeding machine |
| CN102626009B (en) * | 2012-04-27 | 2014-05-07 | 薛世川 | Multilayer stubble-cleaning rotary-cultivation fertilizing seeding machine |
| CN103583128B (en) * | 2013-11-11 | 2016-02-10 | 黑龙江八一农垦大学 | Polynary fertilizer associating fertilizer distributor |
| CN104170551A (en) * | 2014-09-01 | 2014-12-03 | 山西农业大学 | Integral type non-tillage sowing boot |
| CN104718846A (en) * | 2015-03-17 | 2015-06-24 | 中国农业大学 | Furrowing machine with soil screening device |
| CN104718846B (en) * | 2015-03-17 | 2016-04-27 | 中国农业大学 | A kind of plough with soil screening device |
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