CN105409413A - Air-flow type deep-plowing and deep-fertilizing system - Google Patents
Air-flow type deep-plowing and deep-fertilizing system Download PDFInfo
- Publication number
- CN105409413A CN105409413A CN201510716891.5A CN201510716891A CN105409413A CN 105409413 A CN105409413 A CN 105409413A CN 201510716891 A CN201510716891 A CN 201510716891A CN 105409413 A CN105409413 A CN 105409413A
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- air
- fertilizer
- soil
- rifle
- flowing type
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- 239000003337 fertilizer Substances 0.000 claims abstract description 77
- 239000002689 soil Substances 0.000 claims abstract description 55
- 239000000843 powder Substances 0.000 claims description 46
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 36
- 235000011613 Pinus brutia Nutrition 0.000 claims description 36
- 241000018646 Pinus brutia Species 0.000 claims description 36
- 230000008676 import Effects 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract 6
- 239000000463 material Substances 0.000 abstract 4
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 29
- 238000009313 farming Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 238000005056 compaction Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000011612 Pinus armandii Nutrition 0.000 description 1
- 240000000793 Pinus armandii Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002786 root growth Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
- A01C15/04—Fertiliser distributors using blowers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Fertilizing (AREA)
Abstract
The invention discloses an air-flow type deep-plowing and deep-fertilizing system. The system comprises a plowing and fertilizing gun inserted into soil and an air-flow type particle fertilizer supply device for conveying the particle fertilizer to a fertilizer inlet of the plowing and fertilizing gun, wherein the air-flow type particle fertilizer supply device comprises an air compressor and a primary material conveying pipe which is connected with an air outlet of the air compressor; the primary material conveying pipe is provided with a material feeder which absorbs materials through a Venturi structure. The system can solve the problems of deep-plowing and deep-fertilizing soil and movably conveying the particle fertilizer for a long distance, and can be suitable for scaled cultivation of a plain and also suitable for scattered parcels such as mountainous areas and hills. The particle fertilizer conveying system is convenient to move, the soil is not compressed, and the conveying amount is large. The deep-plowing and deep-fertilizing system is not high in power requirement, small in volume, light in weight, flexible to move and little in soil compression, can relatively effectively mix the fertilizer particles with soil, and has little damage on growing root systems of plants.
Description
Technical field
The invention belongs to modern agriculture chain drive field, be specifically related to a kind of air-flowing type subsoiling deep placement system.
Background technology
In farming operation, because fertilizer has the character of solid, not high by liquid supplying way relevance grade, in prior art, mainly transport vehicle is adopted to the conveying of powder fertilizer, as tractor, tricycle or wooden handcart etc. are carried, this mode of transport infrastructure requirements is high, need good road traffic, simultaneously can't motor-driven operation, may damage arable land or compaction serious.And if in hillside or hilly country, motor vehicle or rickshaw are inconvenient to walk, and can only be carried by manpower, not only freight volume is little, efficiency is low, and accurately powder fertilizer can not be transported to the place needing fertilising; In addition, powder solid fertilizer bothers, mechanization automatic loading/unloading can not be realized, operating efficiency is low, on the other hand, fertilizer powder is generally sprinkling upon earth's surface by tractor (most use artificial) by existing powder deep application of fertilizer, then buries with rotovator or tractor rotary tillage or turn over, and there is no moveable-type soil subsoiling deep placement correlation technique and outfit thereof.
Therefore; need to improve existing powder fertilizer conveying and deep placement mode; soil subsoiling deep placement and powder fertilizer moving long distance transportation problem can be solved; not only be applicable to Plain scale farming; also be applicable to the dispersion plot such as mountain area and hills; powder fertilizer induction system conveniently moving; not compacting soil, conveying capacity is large, and subsoiling system dynamic is less demanding; volume is little; lightweight, action is flexibly, little to soil compaction; fertilizer powder can be made comparatively effectively to mix with soil, and destroy little to the plant root grown.
Summary of the invention
The object of this invention is to provide a kind of air-flowing type subsoiling deep placement system; soil subsoiling deep placement and powder fertilizer moving long distance transportation problem can be solved; not only be applicable to Plain scale farming; also be applicable to the dispersion plot such as mountain area and hills; powder fertilizer induction system conveniently moving; not compacting soil; conveying capacity is large; subsoiling system dynamic is less demanding, and volume is little, lightweight; action flexibly; little to soil compaction, fertilizer powder can be made comparatively effectively to mix with soil, and destroy little to the plant root grown.
Air-flowing type subsoiling deep placement system of the present invention, comprise the air-flowing type powder fertilizer feedway that pine applies industry rifle and applies the fertilizer import of industry rifle for powder fertilizer being delivered to described pine, the one-level conveying pipeline that described air-flowing type powder fertilizer feedway comprises air compressor machine and is connected with described air compressor machine air outlet, described one-level conveying pipeline is provided with the feeder of Venturi tube structure suction;
Further, described pine applies in industry rifle and is provided with gas channel and the fertilizer passage for entering powder fertilizer, and described gas channel is Venturi tube structure, and the fertilizer outlet of described fertilizer passage is communicated with the shrinking zone of described gas channel;
Further, described air-flowing type powder fertilizer feedway also comprises hopper and secondary conveying pipeline, and described one-level conveying pipeline outlet is connected to the charging aperture of hopper; The air inlet of described secondary conveying pipeline is connected to air compressor machine air outlet and the tube wall of this secondary conveying pipeline is also provided with the fertilizer import be connected with the discharging opening of feed hopper bottom;
Further, described air-flowing type powder fertilizer feedway also comprises gas-solid separator, described gas-solid separator import is connected with the outlet of secondary conveying pipeline, for separating of going out by the powder fertilizer of pneumatic convey and powder fertilizer being delivered to the entrance that pine applies industry rifle fertilizer passage;
Further, wind conveying pipe is connected with between the entrance that described air compressor machine air outlet and pine apply the gas channel of industry rifle;
Further, described wind conveying pipe and secondary conveying pipeline are equipped with the coiling pipe bender for winding pipeline;
Air-flowing type subsoiling deep placement system of the present invention also comprises the Song Shi Operation Van that can be autonomous mobile to operating area, and the car body of described Song Shi Operation Van is provided with and applies for clamping pine the mechanical arm that industry rifle inserts soil; Described car body is also provided with the soil detector for gathering soil information, processing unit that synchronous signal is connected to soil detector and mechanical arm; Described processing unit receives the control signal of soil information generation to mechanical arm action that soil detector gathers;
Further, described mechanical arm comprises and is connected to the gripper shoe of car body, the swing arm being rotationally connected with described gripper shoe and actuating arm in liftable mode; Described actuating arm is scalable vertically and its outer end is articulated with swing arm swings in horizontal plane for driving swing arm; Described pine applies industry rifle and is vertically fixed on swing arm; Be connected with lift cylinder between described gripper shoe and car body, described swing arm comprises oscillating cylinder, and described actuating arm comprises driving cylinder, and described driving cylinder block is rotationally connected with gripper shoe, drives cylinder piston rod outer end to be articulated with oscillating cylinder cylinder body;
Further, described swing arm outer end is fixed with the gas pick vertically shaken for making pine apply industry rifle, and described pine applies industry rifle and is fixed on gas pick piston rod outer end;
Further, described car body is also provided with gas buffer tank, the import of described gas buffer tank is used for being connected with wind conveying pipe, and the outlet of gas buffer tank is connected to the gas channel entrance that pine applies industry rifle.
The invention has the beneficial effects as follows: air-flowing type subsoiling deep placement system of the present invention, the air-flow that air compressor machine produces is transmitted by one-level conveying pipeline, the feeder being arranged at the transmission of one-level conveying pipeline has the runner of a Venturi tube structure and this runner is accessed one-level conveying pipeline, feeder be also provided with one with the feed channel of its flow passage, this feed channel is connected with the storage tank of powder transport vehicle, utilizes negative pressure to be sucked by the powder in storage tank in one-level conveying pipeline and apply the conveying of industry rifle by air-flow to pine; Therefore, solve the problem of powder fertilizer long distance delivery, make native system not only be applicable to Plain scale farming, be also applicable to the dispersion plot such as mountain area and hills.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, technical solution of the present invention is further illustrated:
Fig. 1 is connection diagram of the present invention;
Fig. 2 is the axonometric drawing of Song Shi Operation Van of the present invention;
Fig. 3 is the front view of Song Shi Operation Van of the present invention;
Fig. 4 is the vertical view of Fig. 3.
Embodiment
Fig. 1 is connection diagram of the present invention; Fig. 2 is the axonometric drawing of Song Shi Operation Van of the present invention;
Fig. 3 is the front view of Song Shi Operation Van of the present invention, Fig. 4 is the vertical view of Fig. 3, as shown in the figure, the air-flowing type subsoiling deep placement system of the present embodiment, comprise the air-flowing type powder fertilizer feedway that pine applies industry rifle 8 and applies the fertilizer import of industry rifle 8 for powder fertilizer being delivered to described pine, the one-level conveying pipeline 10 that described air-flowing type powder fertilizer feedway comprises air compressor machine 2 and is connected with described air compressor machine 2 air outlet, described one-level conveying pipeline 10 is provided with the feeder 11 of Venturi tube structure suction, feeder 11 has the runner of a Venturi tube structure and this runner is accessed one-level conveying pipeline 10, feeder 11 be also provided with one with the feed channel of its flow passage, the storage tank of this feed channel with powder transport vehicle 1 is connected, utilize negative pressure to be sucked by the powder in storage tank in one-level conveying pipeline 10 and apply industry rifle 8 by air-flow to pine and carry, therefore, solve the problem of powder fertilizer long distance delivery, make native system not only be applicable to Plain scale farming, be also applicable to the dispersion plot such as mountain area and hills.
In the present embodiment, described pine applies in industry rifle 8 and is provided with gas channel and the fertilizer passage for entering powder fertilizer, described gas channel is Venturi tube structure, the fertilizer outlet of described fertilizer passage is communicated with the shrinking zone of described gas channel, because gas channel is Venturi tube structure, the effect of acceleration can be played to the air-flow flowed through, simultaneously, fertilizer passage is communicated with the shrinking zone of gas channel with the fertilizer outlet of fertilizer passage, the high-pressure injection air-flow flowing through gas channel forms negative-pressure suction to powder fertilizer, thus powder fertilizer is mixed in gas channel with high-pressure injection air-flow, and then enter soil in company with high-pressure injection air-flow, reach the object of deep placement.
In the present embodiment, described air-flowing type powder fertilizer feedway also comprises hopper 5 and secondary conveying pipeline 4, and described one-level conveying pipeline 10 outlet is connected to the charging aperture of hopper 5, and the fertilizer carried by one-level conveying pipeline 10 is stored in hopper 5; The air inlet of described secondary conveying pipeline 4 is connected to air compressor machine 2 air outlet and the tube wall of this secondary conveying pipeline 4 is also provided with the fertilizer import be connected with the discharging opening bottom hopper 5, discharging opening bottom hopper 5 can be provided with the valve controlling its opening and closing, this valve can adopt magnetic valve and be controlled by PLC, after magnetic valve is opened, powder fertilizer relies on self gravitation or negative pressure to be sucked in secondary conveying pipeline 4, is carried out the conveying of powder fertilizer by secondary conveying pipeline 4.
In the present embodiment, described air-flowing type powder fertilizer feedway also comprises gas-solid separator 7, the import of described gas-solid separator 7 is connected with the outlet of secondary conveying pipeline 4, for separating of going out by the powder fertilizer of pneumatic convey and powder fertilizer being delivered to the entrance that pine applies industry rifle 8 fertilizer passage, thus complete the fertilising operation to soil.
In the present embodiment, wind conveying pipe 3 is connected with between the entrance that described air compressor machine 2 air outlet and pine apply the gas channel of industry rifle 8, air compressor machine 2 air outlet can arrange a four-way connection, make air compressor machine 2 air outlet connect one-level conveying pipeline 10, secondary conveying pipeline 4 and wind conveying pipe 3 respectively, effectively can simplify the number of components of native system.
In the present embodiment, described wind conveying pipe 3 and secondary conveying pipeline 4 are equipped with the coiling pipe bender 6 for winding pipeline, according to the distance of fertilizer placement with hopper 5 distance, the length of wind conveying pipe 3 and secondary conveying pipeline 4 can be regulated by coiling pipe bender 6.
The air-flowing type subsoiling deep placement system of the present embodiment also comprises the Song Shi Operation Van that can be autonomous mobile to operating area, and the car body 19 of described Song Shi Operation Van is provided with and applies for clamping pine the mechanical arm that industry rifle 8 inserts soil, this Operation Van can automatic moving to needing the soil locations carrying out deep placement, solve existing agricultural machinery power large, efficiency is low, operation effectiveness is poor, compacting soil, and destruction can be produced to crops root system, do not possess the defects such as intelligent simultaneously yet, utilize mechanical arm clamping pine to apply industry rifle 8 and insert soil enforcement deep placement, the fertilization effect that loosens the soil is good, operating efficiency is high, because volume is little, be applicable to multiple orographic condition, the operating trolley of the present embodiment, car body 19 can arrange multiple mechanical arm, each mechanical arm all clamps a pine and applies industry rifle 8, multiple spot operation can be realized simultaneously, when operation, the root growth of its plant of little effect, thus reach the effect of evenly loosening the soil and applying fertilizer, improve soil fertility and water-accumulating ability, described car body 19 is also provided with the soil detector for gathering soil information, processing unit that synchronous signal is connected to soil detector and mechanical arm, described processing unit receive that soil detector gathers soil information generate control signal to mechanical arm action, the soil information that processing unit detects according to detector, soil information can be soil compaction degree, plow layer moisture, the content of organic matter, nitrogen content, EC, pH value etc., thus determine the technical scheme of soil being loosened the soil and applying fertilizer, namely need to loosen the soil and apply fertilizer operation to much degree of depth, many wide regions, guarantee to provide more favourable soil environment to plant, soil detector can adopt existing soil moisture probe, suddenly pressure detector or soil nutrient detector, according to the humidity of operation soil, pressure or nutrient data, determines the fertilising operation scheme of soil.
In the present embodiment, described mechanical arm comprises and is connected to the gripper shoe of car body 19, the swing arm being rotationally connected with described gripper shoe and actuating arm in liftable mode; Described actuating arm is scalable vertically and its outer end is articulated with swing arm swings in horizontal plane for driving swing arm; Described pine applies industry rifle 8 and is vertically fixed on swing arm; Lift cylinder 15 is connected with between described gripper shoe and car body 19, described swing arm comprises oscillating cylinder 14, described actuating arm comprises driving cylinder 13, and described driving cylinder 13 cylinder body is rotationally connected with gripper shoe, drives cylinder 13 piston rod outer end to be articulated with oscillating cylinder 14 cylinder body; Lift cylinder 15 cylinder base and trolley 19 are bolted fixing, its piston rod is connected with gripper shoe, cylinder 13 and oscillating cylinder 14 is driven all to be rotationally connected with in gripper shoe by bearing pin and bearing, when carrying out deep placement operation, first utilize and drive cylinder 13 and swing arm cylinder adjustment pine to apply the horizontal level of industry rifle 8, apply industry rifle 8 being driven pine by lift cylinder 15 and insert soil and apply fertilizer.
In the present embodiment, described swing arm outer end is fixed with the gas pick 12 vertically shaken for making pine apply industry rifle 8, described pine applies industry rifle 8 and is fixed on gas pick 12 piston rod outer end, gas pick 12 utilizes compressed air to make piston repeatedly clash into a kind of equipment of pick driving, existing gas pick 12 is general by beater mechanism, valve actuating mechanism, the parts compositions such as pick rod, when running, jump bit to move shock repeatedly along the cylinder of in beater mechanism, and pick rod withstands on the object that construction surface just can reach and smash soil.
In the present embodiment, described car body 19 is also provided with gas buffer tank 17, the import of described gas buffer tank 17 is used for being connected with wind conveying pipe 3, the outlet of gas buffer tank 17 is connected to the gas channel entrance that pine applies industry rifle 8, the gas that air compressor machine 2 provides enters in gas buffer tank 17, has stable source of the gas supply when can ensure deep placement operation.
Driving wheel 18 and the air motor for driving driving wheel 18 to rotate is provided with bottom the Operation Van of the present embodiment, described control unit signal is connected to air motor for controlling the start and stop of driving wheel 18, the walking power of the Operation Van of the present embodiment, the operation power that the action power of mechanical arm and pine are executed all adopts pneumatic means to complete, therefore, only utilize compressed air generator such as air compressor machine 2 grade can provide power for the everything of dolly, simplify the structure of dolly with this, improve the reliability of its work.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. an air-flowing type subsoiling deep placement system, it is characterized in that: the pine comprised for inserting soil applies industry rifle and applies the air-flowing type powder fertilizer feedway of the fertilizer import of industry rifle for powder fertilizer being delivered to described pine, the one-level conveying pipeline that described air-flowing type powder fertilizer feedway comprises air compressor machine and is connected with described air compressor machine air outlet, described one-level conveying pipeline is provided with the feeder of Venturi tube structure suction.
2. air-flowing type subsoiling deep placement system according to claim 1, it is characterized in that: described pine applies in industry rifle and is provided with gas channel and the fertilizer passage for entering powder fertilizer, described gas channel is Venturi tube structure, and the fertilizer outlet of described fertilizer passage is communicated with the shrinking zone of described gas channel.
3. air-flowing type subsoiling deep placement system according to claim 1, is characterized in that: described air-flowing type powder fertilizer feedway also comprises hopper and secondary conveying pipeline, and described one-level conveying pipeline outlet is connected to the charging aperture of hopper; The air inlet of described secondary conveying pipeline is connected to air compressor machine air outlet and the tube wall of this secondary conveying pipeline is also provided with the fertilizer import be connected with the discharging opening of feed hopper bottom.
4. air-flowing type subsoiling deep placement system according to claim 2, it is characterized in that: described air-flowing type powder fertilizer feedway also comprises gas-solid separator, described gas-solid separator import is connected with the outlet of secondary conveying pipeline, for separating of going out by the powder fertilizer of pneumatic convey and powder fertilizer being delivered to the entrance that pine applies industry rifle fertilizer passage.
5. air-flowing type subsoiling deep placement system according to claim 2, is characterized in that: be connected with wind conveying pipe between the entrance that described air compressor machine air outlet and pine apply the gas channel of industry rifle.
6. air-flowing type subsoiling deep placement system according to claim 5, is characterized in that: described wind conveying pipe and secondary conveying pipeline are equipped with the coiling pipe bender for winding pipeline.
7. air-flowing type subsoiling deep placement system according to claim 1, is characterized in that: also comprise the Song Shi Operation Van that can be autonomous mobile to operating area, and the car body of described Song Shi Operation Van is provided with and applies for clamping pine the mechanical arm that industry rifle inserts soil; Described car body is also provided with the soil detector for gathering soil information, processing unit that synchronous signal is connected to soil detector and mechanical arm; Described processing unit receives the control signal of soil information generation to mechanical arm action that soil detector gathers.
8. air-flowing type subsoiling deep placement system according to claim 7, is characterized in that: described mechanical arm comprises and is connected to the gripper shoe of car body, the swing arm being rotationally connected with described gripper shoe and actuating arm in liftable mode; Described actuating arm is scalable vertically and its outer end is articulated with swing arm swings in horizontal plane for driving swing arm; Described pine applies industry rifle and is vertically fixed on swing arm; Be connected with lift cylinder between described gripper shoe and car body, described swing arm comprises oscillating cylinder, and described actuating arm comprises driving cylinder, and described driving cylinder block is rotationally connected with gripper shoe, drives cylinder piston rod outer end to be articulated with oscillating cylinder cylinder body.
9. air-flowing type subsoiling deep placement system according to claim 8, it is characterized in that: described swing arm outer end is fixed with the gas pick vertically shaken for making pine apply industry rifle, described pine applies industry rifle and is fixed on gas pick piston rod outer end.
10. air-flowing type subsoiling deep placement system according to claim 7, it is characterized in that: the car body of described Song Shi Operation Van is also provided with gas buffer tank, the import of described gas buffer tank is used for being connected with wind conveying pipe, and the outlet of gas buffer tank is connected to the gas channel entrance that pine applies industry rifle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510716891.5A CN105409413B (en) | 2015-10-29 | 2015-10-29 | Air-flowing type subsoiling deep placement system |
| PCT/CN2016/087539 WO2017071272A1 (en) | 2015-10-29 | 2016-06-28 | Air-flow type deep digging and deep fertilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510716891.5A CN105409413B (en) | 2015-10-29 | 2015-10-29 | Air-flowing type subsoiling deep placement system |
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| Publication Number | Publication Date |
|---|---|
| CN105409413A true CN105409413A (en) | 2016-03-23 |
| CN105409413B CN105409413B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510716891.5A Active CN105409413B (en) | 2015-10-29 | 2015-10-29 | Air-flowing type subsoiling deep placement system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105409413B (en) |
| WO (1) | WO2017071272A1 (en) |
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| CN106385903A (en) * | 2016-08-19 | 2017-02-15 | 王其传 | A hydraulic type automatic fixed-point fertilization device |
| CN106416515A (en) * | 2016-08-19 | 2017-02-22 | 王其传 | Automatic fixed-point fertilization starting hammer |
| WO2017071272A1 (en) * | 2015-10-29 | 2017-05-04 | 四川天本生物技术有限公司 | Air-flow type deep digging and deep fertilization system |
| CN106941796A (en) * | 2017-04-10 | 2017-07-14 | 扬州大学 | A kind of self-propelled pneumatic soil-loosening fertilizer applicator |
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