CN114923614B - Seed emergence force measuring device and method - Google Patents
Seed emergence force measuring device and method Download PDFInfo
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- CN114923614B CN114923614B CN202210443558.1A CN202210443558A CN114923614B CN 114923614 B CN114923614 B CN 114923614B CN 202210443558 A CN202210443558 A CN 202210443558A CN 114923614 B CN114923614 B CN 114923614B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/02—Germinating apparatus; Determining germination capacity of seeds or the like
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physiology (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Pretreatment Of Seeds And Plants (AREA)
- Sowing (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention discloses a seed emergence force measuring device and a seed emergence force measuring method, wherein the measuring device comprises a bracket, a breeding module for cultivating seeds and a measuring module for measuring seed emergence force, wherein the breeding module comprises a seed basin arranged above the bracket and a breeding table arranged in the seed basin, a through hole is formed in the middle of the breeding table, and a mounting hole is formed in the bottom of the seed basin at a position corresponding to the breeding table; the measuring module comprises a push-pull dynamometer arranged below the bracket, an enveloping part enveloping the seeds, and a connecting structure connecting the enveloping part with a hook of the push-pull dynamometer, wherein the axis of the push-pull dynamometer is coincident with the axis of the breeding platform in the vertical direction. The seedling emergence force measuring device can conveniently and accurately measure the seedling emergence force.
Description
Technical Field
The invention relates to an agricultural measuring device, in particular to a seed emergence force measuring device and method.
Background
The seed should undergo a emergence stage, which refers to the process of the embryonal axis growth to support the emergence of the cotyledons of the seed. The main motive force for the emergence stage is seedling growth in the soil. The growing seedlings encounter soil resistance as they move up through the soil, and thus soil resistance is a major constraint on plant emergence growth. If the seedlings are unable to overcome the soil resistance, the seedlings will not come out of the soil surface even if environmental conditions such as water, temperature and oxygen are sufficient. The method of simulating field soil crust using wax layers has also been used to study the resistance produced by soil crust, exploring the negative impact on leaf expansion and growth rate, and soil resistance measurements on seedlings have been very challenging due to their microscopic dimensions. There are a number of existing methods for measuring soil: (1) Measuring the breaking modulus of the soil to indirectly infer the resistance of the soil to emergence of seedlings; (2) Measuring a soil cone index using a cone penetration meter to evaluate soil impedance; (3) Mechanical seedlings were used to push vertically up through the soil to measure soil resistance.
Although the above measurement method can estimate the soil resistance, the following problems still remain:
1. the impedance of the soil to the growing seedling is a downward force, while the cone penetration meter pushing down the soil profile measures an upward force, resulting in a large error in measuring soil resistance with the cone penetration meter from the actual situation.
2. Mechanical seedlings are probes developed to simulate the growth of seedlings in soil and are used to monitor the impedance of the soil applied to the probe, but the shape of the tip of the probe does not represent the shape of the seedling, so that the measurement results still deviate from the actual situation.
3. The resistance of soil to seedlings is very small, and the technology for measuring such small force is not advanced enough, so that accurate measurement results are difficult to obtain.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a seed emergence force measuring device which can conveniently and accurately measure the emergence force when seeds grow.
Another object of the present invention is to provide a method for measuring the emergence force of seeds by using the measuring device.
The technical scheme for solving the technical problems is as follows:
the seed emergence force measuring device comprises a bracket, a breeding module for cultivating seeds and a measuring module for measuring seed emergence force, wherein the breeding module comprises a seed basin arranged above the bracket and a breeding table arranged in the seed basin, a through hole is formed in the middle of the breeding table, and a mounting hole is formed in the bottom of the seed basin at a position corresponding to the breeding table; the measuring module comprises a push-pull dynamometer arranged below the bracket, an enveloping part enveloping the seeds, and a connecting structure connecting the enveloping part with a hook of the push-pull dynamometer, wherein the axis of the push-pull dynamometer is coincident with the axis of the breeding platform in the vertical direction.
The working principle of the seedling emergence force measuring device is as follows:
firstly, inserting a breeding platform into a mounting hole at the bottom of a seed basin, and placing selected seeds on the breeding platform below an enveloping part; then, the upper part of the connecting structure is connected with the enveloping part, the connecting structure penetrates through a through hole of the breeding platform, the breeding platform is inserted into a mounting hole at the bottom of the seed basin, the through hole is communicated with the outside, and the connecting structure penetrates through the through hole of the breeding platform and penetrates out of the seed basin; then, the lower part of the connecting structure is connected with a hook of the push-pull dynamometer; next, pouring soil into the seed basin, so that the soil is filled around the breeding platform, the seeds can sprout and emerge conveniently, when the seeds sprout and emerge, the enveloping part is pushed upwards, the enveloping part is connected with the hooks of the push-pull dynamometer through the connecting structure, the hooks of the push-pull dynamometer can be pulled upwards by upward movement of the enveloping part, and as the axis of the push-pull dynamometer coincides with the axis of the breeding platform, when the seeds push the enveloping part upwards, the force can be directly transmitted to the push-pull dynamometer through the connecting structure, so that the pulling force is accurately displayed, and the pulling force is the seed emergence force; and finally, continuously detecting the seedling emergence process of the seeds, and transmitting the force value data to a computer for storage.
In a preferred embodiment of the present invention, the enveloping member includes a enveloping body for adhering to the upper surface of the seed, and a plurality of connecting holes for connecting with the connecting structure, and the plurality of connecting holes are disposed at the outer edge of the enveloping body.
Preferably, a rectangular hole is formed in the middle of the enveloping main body, four connecting holes are formed in the middle of the enveloping main body, and the four connecting holes are distributed on the outer sides of four inner corners of the rectangular hole.
In a preferred embodiment of the present invention, the connection structure includes an upper connection portion for connection with the envelope member and a lower connection portion for connection with a hook of the push-pull dynamometer; the upper connecting part comprises four thin copper wires, the lower connecting part comprises tension springs, the upper ends of the four thin copper wires are respectively connected with the four connecting holes, the lower ends of the four thin copper wires are connected to the upper ends of the tension springs in a bundle, and the lower ends of the tension springs are connected to hooks of the push-pull dynamometer.
According to a preferred scheme of the invention, the bracket comprises a base, a supporting rod arranged on the base, a breeding frame for installing a breeding module and a clamping frame for installing a push-pull dynamometer; one end of the supporting rod is arranged on the base, and the other end of the supporting rod extends upwards along the vertical direction; the breeding frame sets up in the upper portion of bracing piece, the holder setting is in the below of breeding frame.
Preferably, two support rods are arranged at two ends of the base respectively; two sides of the clamping frame are respectively connected with the two support rods; two sides of the breeding frame are respectively connected with the two supporting rods.
According to a preferred scheme of the invention, the breeding rack comprises a seed basin table fixedly connected to the upper part of the supporting rod and a clamping sleeve arranged above the seed basin table; the middle part of planting basin platform is equipped with and is used for dodging the clearance hole of thin copper wire, the internal diameter of clamping sleeve with the external diameter phase-match of planting basin.
According to one preferred scheme of the invention, the clamping frame comprises a first clamping piece and a second clamping piece, the first clamping piece comprises a clamping part and a connecting part used for being connected with a supporting rod, the clamping part comprises a clamping groove used for clamping the push-pull dynamometer and bolt holes arranged on two sides of the clamping part, and the connecting part is provided with a connecting through hole matched with the supporting rod; the second clamping piece comprises a clamping part and a connecting part used for being connected with the supporting rod, the clamping part comprises a clamping groove used for clamping the push-pull dynamometer and threaded holes formed in two sides of the clamping part, and a connecting through hole matched with the supporting rod is formed in the connecting part.
Preferably, the clamping frames have two groups, one group is arranged at the upper end of the push-pull dynamometer, and the other group is arranged at the lower end of the push-pull dynamometer.
In a preferred embodiment of the present invention, the breeding platform is a hollow tube.
A method for measuring seed emergence force by using the emergence force measuring device, comprising the following steps:
(1) Inserting the breeding platform into the mounting hole at the bottom of the seed basin, so that the breeding platform is fixedly mounted in the seed basin; placing the selected seeds on a breeding platform, and covering the upper surface of the seeds with an enveloping part;
(2) The upper ends of the four thin copper wires are respectively connected with the connecting holes on the enveloping part, and the lower ends of the four thin copper wires penetrate out of the seed basin from the through holes of the breeding platform;
(3) Tying the lower ends of the four thin copper wires into a bundle, connecting the bundle with the upper end of a tension spring, and connecting the lower end of the tension spring with a hook of a push-pull dynamometer;
(4) Pouring soil into the seed basin to enable the periphery of the breeding platform to be piled up with the soil, so that seeds can germinate and emerge conveniently; the enveloping part pushes the thin copper wire and the tension spring upwards, pulls the hook of the push-pull dynamometer upwards, and measures the seedling emergence force;
(5) And continuously detecting the emergence process of the seeds, and transmitting the force value data to a computer for storage.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the device for measuring the seedling emergence force of the seeds, the enveloping part is covered on the upper surface of the seeds, the enveloping part is connected with the push-pull dynamometer through the connecting structure, the seeds, the connecting structure and the push-pull dynamometer are positioned in the same vertical direction, and when the seeds germinate and emerge, the enveloping part is pushed upwards, so that the hooks of the push-pull dynamometer are pulled through the connecting structure, and the seedling emergence force of the seeds is measured directly and conveniently.
2. According to the device for measuring the seed emergence force, disclosed by the invention, when seeds germinate and emerge, the pushing enveloping part can be used for directly transmitting force to the push-pull dynamometer through the connecting structure, so that the magnitude of the pulling force is accurately displayed, the change condition of the seed emergence force can be detected in real time, and force value data can be stored.
Drawings
Fig. 1 to 6 are schematic views of a device for measuring a seedling emergence force of seeds according to the present invention, wherein fig. 1 is a front view, fig. 2 is a perspective view in a first direction, fig. 3 is a perspective view in a second direction, fig. 4 is a perspective view in a third direction, fig. 5 is a perspective view of a cut-away portion of a seed pot, and fig. 6 is a perspective view of an envelope member.
Fig. 7 is a flowchart of the emergence force measuring method.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
Referring to fig. 1-6, a seed emergence force measuring device comprises a bracket, a breeding module for cultivating seeds and a measuring module for measuring seed emergence force, wherein the breeding module comprises a seed basin 1 arranged above the bracket and a breeding table 2 arranged in the seed basin 1, a through hole 3 is formed in the middle of the breeding table 2, and a mounting hole is formed in the bottom of the seed basin 1 at a position corresponding to the breeding table 2; the measuring module comprises a push-pull dynamometer 4 arranged below the bracket, an enveloping part 5 enveloping the seeds, and a connecting structure connecting the enveloping part 5 with a hook of the push-pull dynamometer 4, wherein the axis of the push-pull dynamometer 4 is coincident with the axis of the breeding platform 2 in the vertical direction.
Referring to fig. 1 to 6, the enveloping member 5 includes a enveloping body for fitting with the upper surface of the seed, and a plurality of connecting holes 6 for connecting with the connecting structure, the plurality of connecting holes 6 being provided at the outer periphery of the enveloping body. The enveloping part 5 is arranged, in the process of measuring the emergence force of the seeds, the seeds are pushed upwards when emerging, an upward pushing force is generated on the enveloping main body, and the connecting structure connected with the connecting hole 6 is pulled upwards, so that the push-pull dynamometer 4 is pulled upwards, and the emergence force of the seeds is measured.
Referring to fig. 1-6, a rectangular hole is provided in the middle of the envelope body, four connecting holes 6 are provided, and four connecting holes 6 are distributed on the outer sides of four inner corners of the rectangular hole. The rectangular holes are formed in the middle of the enveloping main body, water, sunlight or the like can enter conveniently, the positions of the four connecting holes 6 correspond to the positions of the four inner corners of the rectangular holes, and therefore the four connecting holes 6 are symmetrically distributed about the symmetry axis of the rectangular holes, so that when seeds push the enveloping part 5 upwards, the enveloping part 5 is guaranteed to be stressed to be balanced, and the measured seedling emergence force is more accurate and reliable.
Referring to fig. 1-6, the connection structure comprises an upper connection for connection with the envelope member 5 and a lower connection for connection with a hook of the push-pull dynamometer 4; the upper connecting part comprises four fine copper wires 7, the lower connecting part comprises tension springs 8, the upper ends of the four fine copper wires 7 are respectively connected with the four connecting holes 6, the lower ends of the four fine copper wires are tied into a bundle and connected with the upper ends of the tension springs 8, and the lower ends of the tension springs 8 are connected to hooks of the push-pull dynamometer 4. The four thin copper wires 7 are connected with the connecting holes 6 to form a bundle, pass through the through holes 3 of the breeding platform 2 and are connected with the tension springs 8 below, and the positions of the four thin copper wires 7, the tension springs 8 and the push-pull dynamometers 4 are adjusted so that the thin copper wires 7, the tension springs 8 and the push-pull dynamometers 4 bundled below are kept vertical, and thus when seeds push the enveloping components 5 upwards, the pushing force can be directly and accurately transmitted to the push-pull dynamometers 4, and the seedling emergence force can be accurately measured.
Referring to fig. 1 to 6, the bracket includes a base 9, a support bar 10 provided on the base 9, a breeding rack 11 for mounting a breeding module, and a clamping rack 12 for mounting a push-pull dynamometer 4; one end of the supporting rod 10 is arranged on the base 9, and the other end extends upwards along the vertical direction; the breeding frame 11 is arranged at the upper part of the supporting rod 10, and the clamping frame 12 is arranged below the breeding frame 11. In the above bracket, the clamping frame 12 is arranged below the breeding frame 11, the breeding module is arranged above the push-pull dynamometer 4, and when seeds germinate and emerge, the enveloping part 5 is pushed upwards, and the push-pull dynamometer 4 is pulled upwards through the connecting structure, so that the emergence force of the seeds is measured.
Referring to fig. 1 to 6, two support rods 10 are provided, and the two support rods 10 are respectively arranged at two ends of the base 9; two sides of the clamping frame 12 are respectively connected with two support rods 10; two sides of the breeding frame 11 are respectively connected with two support rods 10. The two support rods 10 are arranged, so that the stress of the clamping frame 12 and the stress of the breeding frame 11 are more balanced, and the clamping frame is more stable and reliable.
Referring to fig. 1 to 6, the breeding rack 11 includes a seed basin stand 11-1 fixedly connected to an upper portion of the support bar 10, and a clamping sleeve 11-2 provided above the seed basin stand 11-1; the middle part of the seed basin table 11-1 is provided with a clearance hole for avoiding the thin copper wire 7, and the inner diameter of the clamping sleeve 11-2 is matched with the outer diameter of the seed basin 1. The breeding frame 11 is arranged, when in a working state, the seed basin 1 is placed on the seed basin table 11-1, the position of the clearance hole is aligned with the through hole 3 of the breeding table 2, and the fine copper wire 7 conveniently passes through the clearance hole to be connected with the tension spring 8 below after coming out of the seed basin 1; the clamping sleeve 11-2 is sleeved on the circumferential side surface of the seed basin 1 and plays a role in clamping and fixing the seed basin 1.
Referring to fig. 1-6, the clamping frame 12 includes a first clamping member 12-1 and a second clamping member 12-2, the first clamping member 12-1 includes a clamping portion and a connecting portion for connecting with the support rod 10, the clamping portion includes a clamping groove 12-3 for clamping the push-pull dynamometer 4 and bolt holes disposed at two sides of the clamping portion, and the connecting portion is provided with a connecting through hole 12-4 matched with the support rod 10; the second clamping piece 12-2 comprises a clamping part and a connecting part used for being connected with the supporting rod 10, the clamping part comprises a clamping groove 12-3 used for clamping the push-pull dynamometer 4 and threaded holes arranged on two sides of the clamping part, and the connecting part is provided with a connecting through hole 12-4 matched with the supporting rod 10. The clamping frame 12 is arranged, the first clamping piece 12-1 is connected to one of the supporting rods 10 through the connecting through hole 12-4, and the position of the clamping part is adjusted so that the clamping groove 12-3 is clamped on one side of the push-pull dynamometer 4; the second clamping piece 12-2 is connected to the other supporting rod 10 through the connecting through hole 12-4, the position of the clamping part is adjusted, the clamping groove 12-3 is clamped on the other side of the push-pull dynamometer 4, a screw penetrates through the bolt through hole 3 and is matched with the threaded hole, and therefore the push-pull dynamometer 4 is held tightly and fixed by the first clamping piece 12-1 and the second clamping piece 12-2.
Referring to fig. 1-6, the clamping frames 12 have two groups, one group is arranged at the upper end of the push-pull dynamometer 4, and the other group is arranged at the lower end of the push-pull dynamometer 4. Two groups of clamping frames 12 are arranged and respectively clamped at two ends of the push-pull dynamometer 4, so that the push-pull dynamometer 4 is stably and reliably installed on the bracket.
Referring to fig. 1-6, the breeding platform 2 is a hollow tube. The hollow tube is used as the breeding platform 2, seeds are placed at the top end of the hollow tube, the enveloping part 5 is covered, the thin copper wire 7 can directly penetrate out of the seed basin 1 from the inside of the hollow tube and is connected with the tension spring 8 below, and the seed breeding platform is convenient and practical.
Referring to fig. 7, a method of measuring seed emergence force includes the steps of:
(1) Inserting the breeding platform 2 into a mounting hole at the bottom of the seed basin 1, so that the breeding platform 2 is fixedly mounted in the seed basin 1; placing the selected seeds on a breeding platform 2, and covering the upper surface of the seeds with an enveloping member 5;
(2) The upper ends of the four thin copper wires 7 are respectively connected with the connecting holes 6 on the enveloping part 5, and the lower ends of the four thin copper wires 7 penetrate out of the seed basin 1 from the through holes 3 of the breeding platform 2;
(3) The lower ends of the four thin copper wires 7 are tied into a bundle and are connected with the upper end of the tension spring 8, and the lower end of the tension spring 8 is connected with a hook of the push-pull dynamometer 4;
(4) Pouring soil into the seed basin 1 to enable the periphery of the breeding platform 2 to be piled up with the soil, so that seeds can germinate and emerge conveniently; the enveloping part 5 is pushed upwards by the sprouting and seedling emergence of the seeds, the thin copper wire 7 and the tension spring 8 are pushed upwards by the enveloping part 5, the hook of the push-pull dynamometer 4 is pulled upwards, and the seedling emergence force is measured;
(5) And continuously detecting the emergence process of the seeds, and transmitting the force value data to a computer for storage.
The working principle of the seedling emergence force measuring device is as follows:
firstly, inserting a breeding platform 2 into a mounting hole at the bottom of a seed pot 1, and placing selected seeds on the breeding platform 2 and below an enveloping part 5; then, the upper part of the connecting structure is connected with the enveloping part 5, the connecting structure passes through the through hole 3 of the breeding platform 2, the breeding platform 2 is inserted into the mounting hole at the bottom of the inoculation basin 1, the through hole 3 is communicated with the outside, and the connecting structure passes through the through hole 3 of the breeding platform 2 and can penetrate out of the inoculation basin 1; then, the lower part of the connecting structure is connected with a hook of the push-pull dynamometer 4; next, pouring soil into the seed basin 1, so that the periphery of the breeding platform 2 is piled with the soil, the seeds can sprout and emerge conveniently, when the seeds sprout and emerge, the enveloping part 5 can be pushed upwards, the enveloping part 5 is connected with the hooks of the push-pull dynamometer 4 through the connecting structure, the hooks of the push-pull dynamometer 4 can be pulled upwards by upward movement of the enveloping part 5, and as the axis of the push-pull dynamometer 4 coincides with the axis of the breeding platform 2, when the seeds push the enveloping part 5 upwards, the force can be directly transmitted to the push-pull dynamometer 4 through the connecting structure, so that the pulling force is accurately displayed, and the pulling force is the seedling emergence force of the seeds; and finally, continuously detecting the seedling emergence process of the seeds, and transmitting the force value data to a computer for storage.
The foregoing is illustrative of the present invention and is not to be construed as limiting thereof, but rather as various changes, modifications, substitutions, combinations, and simplifications which may be made therein without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (7)
1. The seed emergence force measuring device is characterized by comprising a bracket, a breeding module for cultivating seeds and a measuring module for measuring seed emergence force, wherein the breeding module comprises a seed basin arranged above the bracket and a breeding table arranged in the seed basin, a through hole is formed in the middle of the breeding table, and a mounting hole is formed in the bottom of the seed basin at a position corresponding to the breeding table; the measuring module comprises a push-pull dynamometer arranged below the bracket, an enveloping part enveloping the seeds, and a connecting structure connecting the enveloping part with a hook of the push-pull dynamometer, wherein the axis of the push-pull dynamometer is overlapped with the axis of the breeding platform in the vertical direction;
the enveloping part comprises an enveloping main body and a plurality of connecting holes, wherein the enveloping main body is used for being attached to the upper surface of the seed, the connecting holes are used for being connected with the connecting structure, and the connecting holes are arranged at the outer edge of the enveloping main body;
the middle part of the enveloping main body is provided with four rectangular holes, and the four connecting holes are distributed at the outer sides of four inner corners of the rectangular hole;
the connecting structure comprises an upper connecting part used for being connected with the enveloping part and a lower connecting part used for being connected with a hook of the push-pull dynamometer; the upper connecting part comprises four thin copper wires, the lower connecting part comprises tension springs, the upper ends of the four thin copper wires are respectively connected with the four connecting holes, the lower ends of the four thin copper wires are connected to the upper ends of the tension springs in a bundle, and the lower ends of the tension springs are connected to hooks of the push-pull dynamometer.
2. The seed emergence force measurement device according to claim 1, wherein the bracket comprises a base, a support rod arranged on the base, a breeding rack for mounting a breeding module and a clamping rack for mounting a push-pull dynamometer; one end of the supporting rod is arranged on the base, and the other end of the supporting rod extends upwards along the vertical direction; the breeding frame sets up in the upper portion of bracing piece, the holder setting is in the below of breeding frame.
3. The seed emergence force measuring device according to claim 2, wherein two support rods are provided, and the two support rods are respectively arranged at two ends of the base; two sides of the clamping frame are respectively connected with the two support rods; two sides of the breeding frame are respectively connected with the two supporting rods.
4. The seed emergence force measuring device according to claim 3, wherein the breeding rack comprises a seed basin table fixedly connected to the upper part of the supporting rod and a clamping sleeve arranged above the seed basin table; the middle part of planting basin platform is equipped with and is used for dodging the clearance hole of thin copper wire, the internal diameter of clamping sleeve with the external diameter phase-match of planting basin.
5. The seed emergence force measurement device according to claim 3, wherein the clamping frame comprises a first clamping piece and a second clamping piece, the first clamping piece comprises a clamping part and a connecting part used for being connected with a supporting rod, the clamping part comprises a clamping groove used for clamping a push-pull dynamometer and bolt holes arranged on two sides of the clamping part, and the connecting part is provided with a connecting through hole matched with the supporting rod; the second clamping piece comprises a clamping part and a connecting part used for being connected with the supporting rod, the clamping part comprises a clamping groove used for clamping the push-pull dynamometer and threaded holes formed in two sides of the clamping part, and a connecting through hole matched with the supporting rod is formed in the connecting part.
6. The seed emergence force measurement device of claim 5 wherein the clamping frame has two sets, one set being disposed at an upper end of the push-pull dynamometer and the other set being disposed at a lower end of the push-pull dynamometer.
7. A method of measuring seed emergence force using the emergence force measuring device of any one of claims 1 to 6, comprising the steps of:
(1) Inserting the breeding platform into the mounting hole at the bottom of the seed basin, so that the breeding platform is fixedly mounted in the seed basin; placing the selected seeds on a breeding platform, and covering the upper surface of the seeds with an enveloping part;
(2) The upper ends of the four thin copper wires are respectively connected with the connecting holes on the enveloping part, and the lower ends of the four thin copper wires penetrate out of the seed basin from the through holes of the breeding platform;
(3) Tying the lower ends of the four thin copper wires into a bundle, connecting the bundle with the upper end of a tension spring, and connecting the lower end of the tension spring with a hook of a push-pull dynamometer;
(4) Pouring soil into the seed basin to enable the periphery of the breeding platform to be piled up with the soil, so that seeds can germinate and emerge conveniently; the enveloping part pushes the thin copper wire and the tension spring upwards, pulls the hook of the push-pull dynamometer upwards, and measures the seedling emergence force;
(5) And continuously detecting the emergence process of the seeds, and transmitting the force value data to a computer for storage.
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| CN202210443558.1A CN114923614B (en) | 2022-04-25 | 2022-04-25 | Seed emergence force measuring device and method |
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| CN202210443558.1A CN114923614B (en) | 2022-04-25 | 2022-04-25 | Seed emergence force measuring device and method |
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