A device for rapidly measuring the germination index of organic fertilizer seeds and its method of use.

Abstract

This invention discloses a device and method for rapidly measuring the germination index of organic fertilizer seeds. The device includes a processing box for measuring the germination index of organic fertilizer seeds, a rotating cover plate on the processing box, and a petri dish for holding the germinated seeds. The cover plate has handles symmetrically provided at both ends for assisting in opening or closing the cover plate. The processing box is equipped with a scanning mechanism for scanning and transmitting image information above and below the germinated seeds, enabling the measurement of the root length and germination rate of the germinated seeds. A weighing mechanism is provided at the bottom of the processing box for weighing the germinated seeds. A drying mechanism is provided on the cover plate above the scanning mechanism for drying the germinated seeds, enabling the measurement of the moisture content of the germinated seeds.

Description

Technical Field

[0001] This invention relates to the field of seed germination measurement technology, specifically to a device for rapidly measuring the germination index of organic fertilizer seeds and its usage method. Background Technology

[0002] Seed germination index (GI) is an important indicator reflecting the degree of fermentation and decomposition of organic fertilizers. The higher the seed germination index, the more mature the organic fertilizer fermentation and decomposition. Currently, the method for determining the seed germination index mainly refers to the test method in Appendix F of the NY / T525-2021 organic fertilizer standard. Specifically, weigh 10.00 g of the sample (fresh sample) and place it in a 250 mL conical flask. After converting the sample moisture content, add the corresponding mass of water according to the solid-liquid ratio (mass / volume) of 1:10. After tightening the cap, fix the flask vertically on a reciprocating horizontal shaker, adjust the frequency to 100 times / min, and the amplitude to not less than 40 mm. Shake and extract at 25℃ for 1 h. After standing for 0.5 h, take the supernatant and filter it on a filter device with filter paper pre-installed. Collect the filtered extract, shake well, and use it for analysis. Use the filtrate on the same day, or store it at 0℃~4℃ for no more than 48 hours. Place one or two sheets of qualitative filter paper in a 9cm petri dish, and evenly place 10 plump cucumber (or radish, uncoated) seeds of approximately the same size on each paper. Add 10mL of the sample extract, cover the petri dish, and incubate in a (25±2)℃ incubator in the dark for 48 hours. Count the number of germinated seeds and measure the length of the taproot of each seed using calipers. Perform a blank test with water as a control, and calculate the results according to the following formula.

[0003] Seed germination index (GI), expressed as a percentage, is calculated according to formula (F.1).

[0004]

[0005] In the formula:

[0006] A1 – The percentage of germinated seeds in the organic fertilizer extract culture out of the total number of seeds placed in the culture, expressed as a percentage (%).

[0007] A2 – The average root length of all seeds cultured in the extract of organic fertilizer, in millimeters (mm);

[0008] B1 – The percentage of germinated seeds in hydroponics out of the total number of seeds placed in the culture, expressed as a percentage (%).

[0009] B2 – The average root length of all seeds cultured in water, expressed in millimeters (mm).

[0010] According to the above-mentioned measurement methods, the seed germination index is related to the root length and germination rate of germinating seeds. Currently, these values ​​are measured manually, which is labor-intensive. Furthermore, the germination index is significantly affected by differences in seed quality; measuring only 10 seeds at a time results in substantial numerical errors. To reduce these errors, the number of seeds measured could be increased, but this would significantly increase the workload of measuring root length. In addition, in some studies of fertilizer efficiency biochemical indicators, we often need to measure the tissue moisture content after seed germination. Currently, there is no dedicated testing equipment to meet the need for rapid measurement of these issues.

[0011] To address this issue, we propose a device for rapidly measuring the germination index of organic fertilizer seeds and its usage method. Summary of the Invention

[0012] The purpose of this invention is to provide a device and method for rapidly measuring the germination index of organic fertilizer seeds, in order to solve the problems mentioned in the background art.

[0013] To achieve the above objectives, the present invention provides the following technical solution: a device for rapidly measuring the germination index of organic fertilizer seeds, comprising a processing box for measuring the germination index of organic fertilizer seeds, a rotating cover plate on the processing box, and a petri dish for holding the germinated seeds. The cover plate has symmetrical handles at both ends for assisting in opening or closing the cover plate. The processing box is equipped with a scanning mechanism for scanning the germinated seeds and transmitting image information. A weighing mechanism is located at the bottom of the processing box for weighing the germinated seeds. A drying mechanism is located on the cover plate above the scanning mechanism for drying the germinated seeds.

[0014] Preferably, the scanning mechanism includes a track mounted on the processing box, the track moving through a sliding block, a bracket mounted on the sliding block, a rotating shaft rotatably mounted on the bracket, the rotating shaft fixedly passing through a rubber wheel for driving the rubber wheel to rotate, and one end of the sliding block being connected to the side wall of the scanner.

[0015] Preferably, the weighing mechanism includes a support sleeve disposed at the bottom of the processing box, a sliding column slidably disposed on the support sleeve, the top end of the sliding column being connected to a weighing platform for holding the petri dish, and a weighing sensor disposed at the bottom of the inner side of the support sleeve for identifying the weight of the items on the weighing platform.

[0016] Preferably, the drying mechanism includes a push rod disposed on the cover plate, the free end of the push rod being connected to a fixing block for pushing the fixing block to move, the fixing block being fixedly connected to a base plate, and the base plate being provided with a drying component for drying germinating seeds.

[0017] Preferably, the track is a U-shaped track, with both ends fixed to the inner wall of the processing box. The end face of the track is circular, and the sliding block has a through hole with a diameter larger than that of the track. The inner surface of the sliding block is smooth.

[0018] Preferably, the bracket has two sets of symmetrically distributed on the sliding block, the bracket is provided with a drive assembly for driving the rotating shaft to rotate, and the rubber wheel is a rubber wheel that can return to its original shape after compression.

[0019] Preferably, the weighing platform rises and falls at the recess in the middle of the track. The weighing platform is made of high-temperature resistant and heat-insulating high-definition glass. The height difference of the weighing platform is less than the distance between the two ends of the track. The bottom end of the sliding column moves to contact the weighing sensor. The support sleeve is a concave cylindrical structure that slides with the sliding column. The weighing sensor is a universal weighing sensor.

[0020] Preferably, one end of the fixing block is fixedly connected to the side wall of the substrate, the substrate is provided with a heat insulation layer, and the drying assembly includes a dryer and a drying unit.

[0021] Preferably, the present invention also discloses a method for using the device for rapidly measuring the germination index of organic fertilizer seeds as described above, comprising the following steps:

[0022] S1: After cleaning and spreading the germinated seeds, place them on a petri dish, place the petri dish on a weighing platform, cover it with a cover plate, and scan the germinated seeds in the petri dish using a scanner.

[0023] S2: The scanner moves above and below the germinating seeds, scanning and recognizing the images. The scanned images are then transmitted to a computer for analysis. The computer calculates and analyzes the root length and germination rate of the germinating seeds.

[0024] S3: While step S2 is being performed, the petri dish is placed on a weighing platform, and the germinating seeds are weighed using a pressure sensor. After stabilization, the pressure sensor transmits the weighing value to the computer for storage.

[0025] S4: After steps S2 and S3 are completed, turn on the dryer on the drying assembly, raise the temperature to 100-105℃, dry to constant weight, and after stabilization, the pressure sensor transmits the weighing value to the computer for storage, and calculates the moisture content of the germinated seeds based on the data from steps S3 and S4.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. After cleaning and spreading the germinated seeds, place them on a petri dish. Place the petri dish on a weighing platform and drive the rotating shaft to rotate. The rotating shaft drives the rubber wheel to rotate. The rotating rubber wheel contacts the track and pushes the sliding block to slide on the track through static friction. The sliding block moves the scanner to follow the movement. The scanner moves to scan the germinated seeds from above and below, resulting in a more comprehensive image and avoiding the need to flip the germinated seeds.

[0028] 2. The germinating seeds in the petri dish are scanned using a scanner. The scanner moves above and below the germinating seeds to perform image recognition processing. The scan results are transmitted to a computer for analysis. The computer calculates and analyzes the root length and germination rate of the germinating seeds. Simultaneously, the petri dish is placed on a weighing platform. The weighing platform pushes down the support column under gravity, and the support column presses down on the pressure sensor. The pressure sensor weighs the germinating seeds. After the value stabilizes, the pressure sensor transmits the weighing value to the computer for storage, enabling the measurement of the weight of the germinating seeds.

[0029] 3. After scanning and weighing are completed, turn on the dryer on the drying unit, raise the temperature to 100-105℃, dry to constant weight and stabilize. Then, the pressure sensor will transmit the weighing value to the computer for storage and calculate the moisture content of the germinated seeds based on the data from steps S3 and S4. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a cross-sectional view of the structure of the processing box in this invention;

[0032] Figure 3 This is a schematic diagram of the weighing mechanism in this invention;

[0033] Figure 4 This is a schematic diagram of the drying mechanism in this invention;

[0034] Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle.

[0035] In the diagram: 1. Processing box; 2. Cover plate; 3. Scanning mechanism; 31. Track; 32. Sliding block; 33. Support; 34. Rotating shaft; 35. Rubber wheel; 36. Scanner; 4. Weighing mechanism; 41. Weighing platform; 42. Sliding column; 43. Support sleeve; 44. Weighing sensor; 5. Drying mechanism; 51. Push rod; 52. Fixing block; 53. Base plate; 54. Drying assembly; 6. Handle; 7. Petri dish. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1-5 The present invention provides a technical solution: a device for rapidly measuring the germination index of organic fertilizer seeds, comprising a processing box 1 for measuring the germination index of organic fertilizer seeds, a cover plate 2 rotatably mounted on the processing box 1, and a petri dish 7 for holding the germinated seeds. The cover plate 2 is symmetrically provided with handles 6 at both ends for assisting in opening or closing the cover plate 2. The processing box 1 is provided with a scanning mechanism 3 for scanning the germinated seeds and transmitting image information. The bottom of the processing box 1 is provided with a weighing mechanism 4 for weighing the germinated seeds. The cover plate 2 above the scanning mechanism 3 is provided with a drying mechanism 5 for drying the germinated seeds.

[0038] The scanning mechanism 3 includes a track 31 mounted on the processing box 1. The track 31 moves through a sliding block 32. A bracket 33 is mounted on the sliding block 32. A rotating shaft 34 is rotatably mounted on the bracket 33. The rotating shaft 34 is fixedly mounted through a rubber wheel 35 to drive the rubber wheel 35 to rotate. One end of the sliding block 32 is connected to the side wall of the scanner 36. The track 31 is a U-shaped track. Both ends of the track 31 are fixed to the inner wall of the processing box 1. The end face of the track 31 is circular. The sliding block 32 has a through hole. The diameter of the through hole in the sliding block 32 is larger than the diameter of the track 31. The inner surface of the sliding block 32 is smooth. The bracket 32 ​​has two sets of symmetrically distributed on the sliding block 32. The bracket 32 ​​has a drive assembly for driving the rotating shaft 34 to rotate. The rubber wheel 35 is a rubber wheel that can return to its original shape after compression.

[0039] The weighing mechanism 4 includes a support sleeve 43 located at the bottom of the processing box 1. A sliding column 42 is slidably mounted on the support sleeve 43. The top of the sliding column 42 is connected to a weighing platform 41 for holding the petri dish 7. The bottom of the support sleeve 43 is provided with a weight for identifying the weight of the items on the weighing platform 41. The weighing platform 41 rises and falls at the recess in the middle of the track 31. The weighing platform 41 is made of high-temperature resistant and heat-insulating high-definition glass. The height difference of the weighing platform 41 is less than the distance between the two ends of the track 31. The bottom end of the sliding column 42 moves to contact the weighing sensor 44. The support sleeve 43 is a concave cylindrical structure that slides in conjunction with the sliding column 42. The weighing sensor 44 is a universal weighing sensor.

[0040] The drying mechanism 5 includes a push rod 51 on the cover plate 2. The free end of the push rod 51 is connected to a fixing block 52 for pushing the fixing block 52 to move. The fixing block 52 is fixedly connected to a base plate 53. The base plate 53 is provided with a drying assembly 54 for drying germinating seeds. One end of the fixing block 52 is fixedly connected to the side wall of the base plate 53. The base plate 53 is provided with a heat insulation layer. The drying assembly 54 includes a dryer and a desiccant.

[0041] A method for using a device for rapidly measuring the germination index of organic fertilizer seeds includes the following steps:

[0042] S1: After cleaning and spreading the germinated seeds, place them on the petri dish 7, place the petri dish 7 on the weighing platform 41, cover it with the cover plate 2, and scan the germinated seeds in the petri dish 7 using the scanner 36.

[0043] S2: The scanner 36 moves above and below the germinating seeds to scan and recognize the germinating seeds, and transmits the scanning and recognition results to the computer for analysis. The computer calculates and analyzes the root length and germination rate of the germinating seeds.

[0044] S3: While step S2 is being performed, the petri dish 7 is placed on the weighing platform 41, and the germinating seeds are weighed by the pressure sensor 44. After stabilization, the pressure sensor 44 transmits the weighing value to the computer for storage.

[0045] S4: After steps S2 and S3 are completed, turn on the dryer on the drying assembly 54, raise the temperature to 100-105℃, dry to constant weight, and after stabilization, the pressure sensor 44 transmits the weighing value to the computer for storage, and calculates the moisture content of the germinated seeds based on the data from steps S3 and S4.

[0046] Working Principle: After cleaning and unfolding the germinated seeds, the present invention places them on a petri dish 7. The petri dish 7 is then placed on a weighing platform 41. A rotating shaft 34 is driven to rotate, which in turn drives a rubber wheel 35. The rubber wheel 35 rotates and contacts a track 31. Through static friction, it pushes a sliding block 32 to slide on the track 31. The sliding block 32 causes the scanner 36 to move accordingly. The scanner 36 scans the germinated seeds from above and below, providing a more comprehensive image and avoiding the need to flip the seeds. The scanner 36 scans the germinated seeds in the petri dish 7, performing image recognition processing on the scanned seeds. The results are transmitted to the computer for analysis. The computer calculates and analyzes the root length and germination rate of the germinated seeds. At the same time, the petri dish 7 is placed on the weighing platform 41. The weighing platform 41 is pushed down by gravity, and the support column 42 presses down on the pressure sensor 44. The germinating seeds are weighed by the pressure sensor 44. After the value stabilizes, the pressure sensor 44 transmits the weighing value to the computer for storage. After the scanning and weighing work is completed, the dryer on the drying assembly 54 is turned on, the temperature is raised to 100-105℃, and the seeds are dried to constant weight. After stabilization, the pressure sensor 44 transmits the weighing value to the computer for storage. Based on the data from steps S3 and S4, the moisture content of the germinating seeds is calculated.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method of using a device for rapidly measuring the germination index of organic fertilizer seeds, characterized in that, Includes the following steps: S1: After cleaning and spreading the germinated seeds, place them on a petri dish (7), place the petri dish (7) on a weighing platform (41), cover it with a cover plate (2), and scan the germinated seeds in the petri dish (7) using a scanner (36); S2: The scanner (36) moves above and below the germinating seeds to perform image recognition processing on the germinating seeds, and transmits the scanning and recognition results to the computer for analysis. The computer calculates and analyzes the root length and germination rate of the germinating seeds. S3: While S2 is being performed, the petri dish (7) is placed on the weighing platform (41), and the germinating seeds are weighed by the pressure sensor (44). After stabilization, the pressure sensor (44) transmits the weighing value to the computer for storage. S4: After steps S2 and S3 are completed, turn on the dryer on the drying component (54), raise the temperature to 100~105℃, dry to constant weight, and after stabilization, the pressure sensor (44) transmits the weighing value to the computer for storage, and calculates the moisture content of the germinated seeds based on the step data of S3 and S4. The device for rapidly measuring the germination index of organic fertilizer seeds includes a processing box (1) for measuring the germination index of organic fertilizer seeds, a rotating cover plate (2) on the processing box (1), and a petri dish (7) for holding the germinated seeds. The device is characterized in that: the cover plate (2) is symmetrically provided with handles (6) at both ends for assisting in opening or closing the cover plate (2); the processing box (1) is provided with a scanning mechanism (3) for scanning the germinated seeds and transmitting image information; the bottom of the processing box (1) is provided with a weighing mechanism (4) for weighing the germinated seeds; and the cover plate (2) above the scanning mechanism (3) is provided with a drying mechanism (5) for drying the germinated seeds. The scanning mechanism (3) includes a track (31) on the processing box (1), the track (31) moves through a sliding block (32), a bracket (33) is provided on the sliding block (32), a rotating shaft (34) is rotatably provided on the bracket (33), the rotating shaft (34) is fixedly through a rubber wheel (35) for driving the rubber wheel (35) to rotate, and one end of the sliding block (32) is connected to the side wall of the scanner (36); The weighing mechanism (4) includes a support sleeve (43) located at the bottom of the processing box (1), a sliding column (42) is slidably provided on the support sleeve (43), the top of the sliding column (42) is connected to a weighing platform (41) for holding the petri dish (7), and a weighing sensor (44) for identifying the weight of the items on the weighing platform (41) is provided at the bottom of the support sleeve (43). The drying mechanism (5) includes a push rod (51) on the cover plate (2), the free end of the push rod (51) is connected to a fixing block (52) for pushing the fixing block (52) to move, the fixing block (52) is fixedly connected to a base plate (53), and the base plate (53) is provided with a drying component (54) for drying the germinating seeds. The weighing platform (41) rises and falls at the recess in the middle of the track (31). The height difference between the rise and fall of the weighing platform (41) is less than the distance between the two ends of the track (31). The bottom end of the sliding column (42) moves to contact the weighing sensor (44). The support sleeve (43) is a concave cylindrical structure that cooperates with the sliding column (42) to slide. The weighing sensor (44) is a general-purpose weighing sensor.

2. The method of using the device for rapidly measuring the germination index of organic fertilizer seeds according to claim 1, characterized in that: The track (31) is a U-shaped track. Both ends of the track (31) are fixed to the inner wall of the processing box (1). The end face of the track (31) is circular. The sliding block (32) is provided with a through hole. The diameter of the through hole of the sliding block (32) is larger than the diameter of the track (31). The inner surface of the sliding block (32) is smooth.

3. The method of using the device for rapidly measuring the germination index of organic fertilizer seeds according to claim 1, characterized in that: The bracket (32) has two sets of symmetrically distributed on the sliding block (32). The bracket (32) is provided with a drive assembly for driving the rotating shaft (34) to rotate. The rubber wheel (35) is a rubber wheel that can recover its original shape after compression.

4. The method of using the device for rapidly measuring the germination index of organic fertilizer seeds according to claim 1, characterized in that: One end of the fixing block (52) is fixedly connected to the side wall of the substrate (53), the substrate (53) is provided with a heat insulation layer, and the drying assembly (54) includes a dryer and a drying unit.

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