CN111307508A - Continuous detection device of soil nutrient - Google Patents
Continuous detection device of soil nutrient Download PDFInfo
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- CN111307508A CN111307508A CN202010280828.2A CN202010280828A CN111307508A CN 111307508 A CN111307508 A CN 111307508A CN 202010280828 A CN202010280828 A CN 202010280828A CN 111307508 A CN111307508 A CN 111307508A
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- box body
- middle box
- inner cavity
- cavity
- end wall
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- 239000002689 soil Substances 0.000 title claims abstract description 52
- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 235000015097 nutrients Nutrition 0.000 title claims abstract description 16
- 238000005553 drilling Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 230000036461 convulsion Effects 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims 4
- 241001330002 Bambuseae Species 0.000 claims 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 4
- 239000011425 bamboo Substances 0.000 claims 4
- 206010028347 Muscle twitching Diseases 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 238000005070 sampling Methods 0.000 description 7
- 238000005527 soil sampling Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a continuous soil nutrient detection device, which comprises a middle box body, wherein a bottom cavity which penetrates through the middle box body up and down is arranged in the middle box body, a bifurcate opening is arranged in the end wall of the bottom cavity, a screwing handle is arranged on the upper end wall of the bottom cavity in a matching and connecting manner through internal threads, the upper end surface of the middle box body is fixedly provided with symmetrical carrying handles, the lower side of the middle box body is provided with a drilling device which can enable the equipment to drill underground in a rotating mode, the inner side of the drilling device is provided with an extracting device which is positioned in the middle box body and used for extracting a soil layer, the equipment has a simple structure, the equipment is more convenient to drill into the ground in a mode of matching a straight drill bit and a threaded drill, and set up the structure of the soil sample of being convenient for, made soil sample in-process soil take away from earth more convenient high-efficient, and can be convenient for personnel directly carry out contact sample to different picture layers and draw the detection.
Description
Technical Field
The invention relates to the technical field of soil detection equipment, in particular to a continuous detection device for soil nutrients.
Background
The soil detection equipment has more problems, firstly, continuous detection is realized, the continuous detection process can be realized only by frequent and repeated sampling of personnel, because the personnel are required to repeatedly sample a single area when sampling for multiple times, the same sampling hole is required to be dug repeatedly, therefore, soil samples of different layers can be mixed, the device can not efficiently extract the samples of different layers in the soil accurately and efficiently, the detection reliability of the device is reduced, meanwhile, the Duyu sampling process in the existing equipment has more defects, the first is the high efficiency of soil sampling and the high efficiency of leading soil out of the equipment after soil sampling, this makes the existing equipment unable to realize the above functions in high-efficiency work, makes the equipment inconvenient for personnel to use efficiently, and the sampling speed of the sample is influenced, so that the efficiency of continuous detection of the soil nutrients by the equipment is influenced.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a continuous detection device for soil nutrients, which can solve the above problems in the prior art.
The invention is realized by the following technical scheme: the invention relates to a continuous soil nutrient detection device which comprises a middle box body, wherein a bottom cavity penetrating up and down is arranged in the middle box body, a bifurcate opening is formed in the end wall of the bottom cavity, a screwing handle is arranged on the upper end wall of the bottom cavity in a matched and connected mode through internal threads, symmetrical carrying handles are fixedly arranged on the upper end face of the middle box body, a drilling device capable of enabling equipment to drill underground in a rotating mode is arranged on the lower side of the middle box body, and an extraction device which is located in the middle box body and used for extracting a soil layer is arranged on the inner side of the drilling device.
According to a further technical scheme, the drilling device comprises an external rotary drum which is connected with the middle box body in a rotating fit mode, a fit inner cavity is formed in the external rotary drum, a spiral cutter is fixedly arranged on the outer surface of the external rotary drum, a side fixing motor is fixedly arranged on the end face of the middle box body in the fit inner cavity, a driving transmission gear is arranged on the lower side of the side fixing motor in a power connection mode, a toothed ring fixed with the end wall of the fit inner cavity is arranged on one side of the driving transmission gear, a penetrating inner cavity penetrating through the toothed ring is formed in the toothed ring, the driving transmission gear stretches into the penetrating inner cavity and is meshed with the toothed ring, and a bottom component which transmits the rotation of the external rotary drum to the lower side.
According to the technical scheme, the bottom assembly comprises a fixed side plate fixed to the end face of the middle box body, a transition gear is arranged on the lower side of the fixed side plate in a rotating mode, the transition gear is meshed with the end wall of the matching inner cavity, a bottom cutter head is arranged on the outer surface of the middle box body in a rotating mode, the bottom cutter head is meshed with the transition gear, a penetrating middle inner cavity is formed in the bottom cutter head, and symmetrical cutting edges are fixedly arranged on the outer surface of the bottom cutter head.
According to a further technical scheme, the extraction device comprises a bottom cylinder fixed on the lower end face by screwing, an opening is formed in the bottom cylinder, the bottom cylinder is of a semi-cylindrical structure, a sealing assembly used for sealing to form an annular cylindrical structure is arranged in the bottom cylinder, and a guiding assembly used for guiding soil is arranged in the bottom cavity.
According to a further technical scheme, the sealing assembly comprises a rotating inner cavity arranged in the bottom cylinder, a clamping ring installing cavity is arranged in the lower end wall of the rotating inner cavity in a communicated mode, the clamping ring installing cavity is of a semicircular structure, a top matching motor is fixedly arranged on the upper end face of the bottom cylinder, a bottom disc located in the rotating inner cavity is arranged on the lower side of the top matching motor, the bottom disc is in power connection with the top matching motor, a semi-ring shell is fixedly arranged on the lower end face of the bottom disc, and the semi-ring shell is in sliding fit connection with the clamping ring installing cavity and the bottom cylinder.
Further technical scheme, the leading subassembly including set up in bottom piece in the bottom intracavity, bottom piece surface has set firmly a plurality of downside supports, the downside support with bottom chamber end wall is fixed, bottom piece upside be provided with can rotate with the downside support carries out the overlapping dislocation structure that overlaps the dislocation.
Further technical scheme, overlap dislocation structure including set up in bottom cooperation inner chamber in the bottom piece, end wall has set firmly the cooperation motor under the cooperation inner chamber of bottom, cooperation motor upside power connection is provided with the driving gear, driving gear one side meshing is provided with driven gear, the interior dwang that has set firmly in the driven gear, interior dwang with bottom cooperation inner chamber end wall normal running fit connects, interior rotation pole up end has set firmly the top lug, top lug surface has set firmly a plurality of top twitch poles.
The invention has the beneficial effects that:
the device has a simple structure, the device is more convenient to drill into the ground by adopting a mode of matching the straight drill bit and the threaded drill, and the device is provided with a structure convenient for soil sampling, so that soil is more convenient and efficient to take away from soil in the soil sampling process, and people can conveniently and directly carry out contact sample extraction and detection on different image layers.
In the initial state, the device, the components and the structure are in the stop working state, the equipment needs to utilize the lifting handle lifting equipment to move to a place where a soil sample is to be extracted, and soil extraction is carried out on soil on the lower side after the equipment is started.
When the equipment works, the side fixed motor drives the driving transmission gear to rotate after working, so that the driving transmission gear drives the toothed ring and the outer rotary drum to rotate, the spiral cutter is gradually drilled into the ground after contacting the ground, the transition gear rotates to drive the bottom cutter head to rotate after rotating because the outer rotary drum rotates relative to the middle box body, so that the bottom cutter head and the cutting edge drill the soil on the lower side, the soil enters the inner cavity from the middle inner cavity and the bottom cavity due to the structural design of the middle inner cavity and the fork opening, the soil needs to enter the inner cavity without being blocked at the moment, the matching motor drives the driving gear to rotate after working, so that the driving gear drives the driven gear to rotate, and the top lug rotates after the driven gear drives the inner rotary rod to rotate, after the top lug drives the top rotating rod to swing so that the top rotating rod and the lower side support are in a superposed state, after the equipment is completely embedded into the ground, all layer samples of soil layers are loaded in the inner cavity, after the equipment is indirectly operated by the matching motor, the top lug rotates so that the top rotating rod and the lower side support form a cross structure, at the moment, soil in the inner cavity can be shielded, after the side fixing motor is operated, the outer rotating drum is indirectly rotated again, the middle box body is lifted upwards, after the equipment is completely separated from the soil, the top matching motor is operated, the bottom disc is driven to rotate, the bottom disc drives the half ring shell body to enter the clamping ring cavity, the inner part of the bottom cylinder is in an open state, and at the moment, a person can extract a sample plate of the soil in the inner cavity, for continuous detection sampling.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the internal overall structure of a continuous soil nutrient detection device according to the present invention;
FIG. 2 is a schematic view of the direction A in FIG. 1;
FIG. 3 is a schematic view of the direction B in FIG. 1;
FIG. 4 is a schematic view of FIG. 1 taken along direction C;
FIG. 5 is a schematic view of FIG. 4 taken along direction D;
FIG. 6 is a schematic view of the mating structure of the bottom barrel and the semi-ring housing of FIG. 1;
in the figure, the inner cavity 11, the bottom cavity 12, the bottom cutter head 13, the bifurcation 14, the middle inner cavity 15, the cutting edge 16, the transition gear 17, the fixed side plate 18, the penetrating inner cavity 21, the driving transmission gear 22, the toothed ring 23, the side fixed motor 24, the matching inner cavity 25, the spiral cutter 26, the outer rotary drum 27, the middle box 28, the handle 29, the screwing handle 32, the bottom cylinder 41, the rotating inner cavity 42, the bottom disc 43, the clamping ring cavity 45, the semi-ring shell 46, the top matching motor 51, the top rotating rod 52, the top lug 53, the driven gear 54, the driving gear 55, the bottom matching inner cavity 56, the matching motor 57, the bottom block 58, the rotating rod 59 and the lower side bracket 71 are arranged.
Detailed Description
As shown in fig. 1 to 6, the present invention is explained in detail, and for convenience of description, the following orientations are defined as follows: the continuous soil nutrient detection device comprises a middle box body 28, wherein a bottom cavity 12 which penetrates through the middle box body 28 from top to bottom is arranged in the middle box body 28, a bifurcate opening 14 is arranged in the end wall of the bottom cavity 12, a screwing handle 32 is arranged on the upper end wall of the bottom cavity 12 in a matched and connected mode through internal threads, symmetrical carrying handles 29 are fixedly arranged on the upper end face of the middle box body 28, an underground drilling device which enables equipment to drill in a rotating mode is arranged on the lower side of the middle box body 28, and an extracting device which is located in the middle box body 28 and used for extracting soil layers is arranged on the inner side of the drilling device.
Advantageously, the drilling device comprises an outer rotating drum 27 connected with the intermediate box 28 in a rotating fit manner, a fit inner cavity 25 is arranged in the outer rotating drum 27, a spiral cutter 26 is fixedly arranged on the outer surface of the outer rotating drum 27, a side fixed motor 24 is fixedly arranged on the end face of the intermediate box 28 in the fit inner cavity 25, a driving transmission gear 22 is arranged on the lower side of the side fixed motor 24 in a power connection manner, a toothed ring 23 fixed with the end wall of the fit inner cavity 25 is arranged on one side of the driving transmission gear 22, a penetrating inner cavity 21 is arranged in the toothed ring 23 in a penetrating manner, the driving transmission gear 22 extends into the penetrating inner cavity 21 and is meshed with the toothed ring 23, and a bottom component for transmitting the rotation of the outer rotating drum 27 to the lower side for drilling into the ground is arranged on the.
Beneficially, the bottom assembly comprises a fixed side plate 18 fixed to the end face of the middle box 28, a transition gear 17 is rotatably arranged on the lower side of the fixed side plate 18, the transition gear 17 is meshed with the end wall of the matching inner cavity 25, a bottom cutter head 13 is rotatably arranged on the outer surface of the middle box 28, the bottom cutter head 13 is meshed with the transition gear 17, a penetrating middle inner cavity 15 is arranged in the bottom cutter head 13, and symmetrical cutting edges 16 are fixedly arranged on the outer surface of the bottom cutter head 13.
Advantageously, the extraction device comprises a bottom cylinder 41 fixed to the lower end face of the tightening handle 32, an opening 44 is provided in the bottom cylinder 41, the bottom cylinder 41 is of a semi-cylindrical structure, a closing component for closing the opening 44 to form an annular cylindrical structure is provided in the bottom cylinder 41, and a communicating component for communicating soil is provided in the bottom cavity 12.
Advantageously, the closure assembly comprises a rotating inner cavity 42 arranged in the bottom barrel 41, a clamping ring cavity 45 is arranged in the lower end wall of the rotating inner cavity 42 in a communicating manner, the clamping ring cavity 45 is of a semicircular structure, a top matching motor 51 is fixedly arranged on the upper end surface of the bottom barrel 41, a bottom disc 43 positioned in the rotating inner cavity 42 is arranged on the lower side of the top matching motor 51, the bottom disc 43 is in power connection with the top matching motor 51, a half-ring shell 46 is fixedly arranged on the lower end surface of the bottom disc 43, and the half-ring shell 46 is in sliding fit connection with the clamping ring cavity 45 and the bottom barrel 41.
Advantageously, the guiding assembly comprises a bottom block 58 arranged in the bottom cavity 12, a plurality of lower brackets 71 are fixedly arranged on the outer surface of the bottom block 58, the lower brackets 71 are fixed to the end wall of the bottom cavity 12, and an overlapping and dislocating structure capable of rotating to overlap and dislocate with the lower brackets 71 is arranged on the upper side of the bottom block 58.
Beneficially, wherein, overlap dislocation structure including set up in bottom cooperation inner chamber 56 in the bottom piece 58, the terminal wall has set firmly cooperation motor 57 under bottom cooperation inner chamber 56, cooperation motor 57 upside power connection is provided with driving gear 55, driving gear 55 one side meshing is provided with driven gear 54, driven gear 54 internal fixation has interior dwang 59, interior dwang 59 with bottom cooperation inner chamber 56 end wall normal running fit is connected, interior dwang 59 up end has set firmly top lug 53, top lug 53 surface has set firmly a plurality of top twitch poles 52.
In the initial state, the above devices, components and structures are in the state of stopping working, the equipment needs to be lifted to the place where the soil sample is to be extracted by using the lifting handle 29, and soil extraction is carried out on the soil on the lower side after the equipment is started.
When the equipment works, the side fixed motor 24 works to drive the driving transmission gear 22 to rotate, so that the driving transmission gear 22 drives the toothed ring 23 and the outer rotary drum 27 to rotate, the spiral cutter 26 is contacted with the ground to gradually drill the spiral cutter 26 into the ground, and because the outer rotary drum 27 rotates relative to the middle box 28, the transition gear 17 rotates to drive the bottom cutter 13 to rotate, so that the bottom cutter 13 and the cutting edge 16 drill the soil on the lower side, because of the structural design of the middle inner cavity 15 and the bifurcation 14, the soil enters the inner cavity 11 from the middle inner cavity 15 and the bottom cavity 12, at the moment, the soil needs to enter the inner cavity 11 without obstruction, and the matching motor 57 works to drive the driving gear 55 to rotate, so that the driving gear 55 drives the driven gear 54 to rotate, after the driven gear 54 drives the inner rotating rod 59 to rotate, the top projection 53 is rotated, then the top projection 53 drives the top rotating rod 52 to swing, so that the top rotating rod 52 and the lower side support 71 are in an overlapped state, after the equipment is completely embedded into the ground, all layer samples of soil layers are loaded in the inner cavity 11, then the cooperation motor 57 indirectly works to rotate the top projection 53, so that the top rotating rod 52 and the lower side support 71 form a cross structure, at this time, soil in the inner cavity 11 can be shielded, after that, the side fixing motor 24 indirectly rotates the outer rotating cylinder 27 again, so that the middle box 28 is lifted upwards, after the equipment is completely separated from the soil, the top cooperation motor 51 works to drive the bottom disc 43 to rotate, so that the bottom disc 43 drives the semi-ring shell 46 to enter the clamping ring cavity 45, the inside of the bottom cylinder 41 is in an open state, and at the moment, a worker can extract a sample plate of the soil in the inner cavity 11 to perform continuous detection and sampling.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (7)
1. The invention discloses a continuous soil nutrient detection device which comprises a middle box body, wherein a bottom cavity which penetrates through the middle box body from top to bottom is arranged in the middle box body, a bifurcate opening is formed in the end wall of the bottom cavity, a screwing handle is arranged on the upper end wall of the bottom cavity in a matched and connected mode through internal threads, symmetrical carrying handles are fixedly arranged on the upper end face of the middle box body, a drilling device which can enable equipment to drill underground in a rotating mode is arranged on the lower side of the middle box body, and an extraction device which is located in the middle box body and used for extracting a soil layer is arranged on the inner side of the drilling device.
2. The continuous soil nutrient detection device of claim 1, wherein: the drilling device comprises an external rotary drum which is connected with the middle box body in a rotating matching mode, a matching inner cavity is formed in the external rotary drum, a spiral cutter is fixedly arranged on the outer surface of the external rotary drum, a side fixing motor is fixedly arranged on the end face of the middle box body in the matching inner cavity, a driving transmission gear is arranged on the lower side of the side fixing motor in a power connection mode, a toothed ring fixed to the end wall of the matching inner cavity is arranged on one side of the driving transmission gear, a penetrating inner cavity penetrating through the toothed ring is formed in the toothed ring, the driving transmission gear extends into the penetrating inner cavity and is meshed with the toothed ring, and a bottom component which transmits the rotation of the external rotary drum to the lower side to.
3. The continuous soil nutrient detection device of claim 2, wherein: the bottom assembly comprises a fixed side plate fixed on the end face of the middle box body, a transition gear is arranged on the lower side of the fixed side plate in a rotating mode, the transition gear is meshed with the end wall of the matching inner cavity, a bottom cutter head is arranged on the outer surface of the middle box body in a rotating mode, the bottom cutter head is meshed with the transition gear, a penetrating middle inner cavity is arranged in the bottom cutter head, and symmetrical cutting edges are fixedly arranged on the outer surface of the bottom cutter head.
4. The continuous soil nutrient detection device of claim 1, wherein: the extraction element include with screw the bottom section of thick bamboo of terminal surface fixing down, be provided with the open-ended in the bottom section of thick bamboo, the bottom section of thick bamboo is half cylinder structure, be provided with in the bottom section of thick bamboo with seal and form the closed component of annular cylinder structure, the bottom intracavity is provided with and is used for leading to the subassembly that leads that earth leads to.
5. The continuous soil nutrient detection device of claim 4, wherein: the sealing assembly comprises a rotating inner cavity arranged in the bottom cylinder, a clamping ring installing cavity is arranged in the lower end wall of the rotating inner cavity in a communicated mode, the clamping ring installing cavity is of a semicircular structure, a top matching motor is fixedly arranged on the upper end face of the bottom cylinder, a bottom disc located in the rotating inner cavity is arranged on the lower side of the top matching motor, the bottom disc is in power connection with the top matching motor, a semi-ring shell is fixedly arranged on the lower end face of the bottom disc, and the semi-ring shell is in sliding fit connection with the clamping ring installing cavity and the bottom cylinder.
6. The continuous soil nutrient detection device of claim 4, wherein: the leading component is including setting up in bottom piece in the bottom intracavity, bottom piece surface has set firmly a plurality of downside supports, the downside support with bottom chamber end wall is fixed, bottom piece upside be provided with can rotate with the downside support overlaps the overlapping dislocation structure of dislocation.
7. The continuous soil nutrient detection device of claim 6, wherein: overlap dislocation structure including set up in bottom cooperation inner chamber in the bottom piece, bottom cooperation inner chamber lower extreme end wall has set firmly the cooperation motor, cooperation motor upside power connection is provided with the driving gear, driving gear one side meshing is provided with driven gear, the internal dwang that has set firmly of driven gear, internal dwang with bottom cooperation inner chamber end wall normal running fit is connected, internal rotation pole up end has set firmly the top lug, top lug surface has set firmly a plurality of top twitches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010280828.2A CN111307508A (en) | 2020-04-10 | 2020-04-10 | Continuous detection device of soil nutrient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010280828.2A CN111307508A (en) | 2020-04-10 | 2020-04-10 | Continuous detection device of soil nutrient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111307508A true CN111307508A (en) | 2020-06-19 |
Family
ID=71146252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010280828.2A Withdrawn CN111307508A (en) | 2020-04-10 | 2020-04-10 | Continuous detection device of soil nutrient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111307508A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881088A (en) * | 2021-01-28 | 2021-06-01 | 河北建筑工程学院 | Collector suitable for river sediment sample collection |
| CN115575568A (en) * | 2022-09-13 | 2023-01-06 | 吉林大学 | A system and method for sensing carbon emissions of farmland soil and crops |
-
2020
- 2020-04-10 CN CN202010280828.2A patent/CN111307508A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881088A (en) * | 2021-01-28 | 2021-06-01 | 河北建筑工程学院 | Collector suitable for river sediment sample collection |
| CN112881088B (en) * | 2021-01-28 | 2023-01-24 | 河北建筑工程学院 | Collector suitable for river sediment sample collection |
| CN115575568A (en) * | 2022-09-13 | 2023-01-06 | 吉林大学 | A system and method for sensing carbon emissions of farmland soil and crops |
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Application publication date: 20200619 |