A sugarcane root system observation device and a method for predicting its drought resistance

Abstract

The present invention relates to the technical field of sugarcane cultivation, and discloses a sugarcane root observation device, which includes a cultivation box. A plurality of root position detection components are arranged inside the cultivation box, and the plurality of root position detection components are distributed at different heights. The root position detection component includes a detection wire, a first mounting plate, a second mounting plate and a support column. The first mounting plate and the second mounting plate are respectively embedded and installed on two opposite side walls of the cultivation box. The first mounting plate is arranged between the second mounting plate and the support column. A plurality of detection wires are provided, and the plurality of detection wires are arranged in parallel with each other. According to the present invention, by only arranging multiple groups of detection wires, the growth condition of the sugarcane roots can be judged. The cost of the device is relatively low, and the observed sugarcane roots are still located inside the soil, so that the sugarcane roots are less affected by the external temperature, and thus the drought resistance test result of the sugarcane is more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of sugarcane cultivation, and specifically to a sugarcane root observation device and a method for predicting its drought resistance. Background Art

[0002] The drought resistance of sugarcane mainly depends on its root system. With the growth of sugarcane plants and the effect of soil hilling, new roots continuously grow at the base of the plant, forming a root axis system, which is directly related to the drought resistance of sugarcane.

[0003] A sugarcane root observation device is a special equipment for observing the growth dynamics of sugarcane roots. Currently, the commonly used observation methods include the glass wall method and the endoscope tube method. The glass wall method observes and records the growth of roots through an observation window placed in the soil profile. The glass wall method enables people to observe the growth and development of roots for a long time and continuously, and its service life can reach about 20 years. The disadvantage is that the temperature variation range of the soil in the area close to the observation window is slightly larger, which affects the growth of sugarcane roots to a certain extent, and both the window surface and the observation depth are relatively limited. The endoscope tube method (micro root canal) is to insert a transparent thin tube into the soil and observe the root growth through a microscope, but the cost is relatively high. Therefore, a sugarcane root observation device that does not affect the growth of sugarcane and has a relatively low cost is needed.

[0004] Therefore, it is necessary to provide a sugarcane root observation device and a method for predicting its drought resistance to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a sugarcane root observation device and a method for predicting its drought resistance, which have the effects of comprehensive observation and relatively low cost.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions: A sugarcane root observation device includes a cultivation box. A plurality of root position detection components are arranged inside the cultivation box, and the plurality of root position detection components are distributed at different heights. The root position detection component includes a detection wire, a first mounting plate, a second mounting plate, and a support column. The first mounting plate and the second mounting plate are respectively embedded and installed on two opposite side walls of the cultivation box. The first mounting plate is arranged between the second mounting plate and the support column. A plurality of detection wires are provided, and the plurality of detection wires are arranged in parallel with each other. One end of the detection wire is connected to the second mounting plate, and the other end of the detection wire penetrates through the first mounting plate and is fixedly connected with an elastic rope at this end. The elastic rope bypasses the support column and is fixedly connected with the first mounting plate.

[0007] The further setting of the present invention is that: identification balls are sleeved on the detection wire at positions close to the elastic rope.

[0008] A further setting of the present invention is that: one side of the first mounting plate is provided with an adjusting rod, a through groove is formed inside the adjusting rod, the detection wire penetrates through the through groove, one side of the cultivation box is provided with an adjusting assembly, and the adjusting assembly is in transmission connection with the adjusting rod.

[0009] A further setting of the present invention is that: the adjusting assembly includes an adjusting plate, a second connecting rod and an adjusting screw. The adjusting plate is arranged on one side of the cultivation box. The adjusting screw penetrates through the adjusting plate and is in threaded connection with the adjusting plate. One end of the adjusting screw is rotatably connected to the side wall of the cultivation box, and the other end of the adjusting screw is fixedly installed with a knob. Both ends of the adjusting plate are fixedly installed with second connecting rods, and both ends of the adjusting rod are fixedly connected to the two second connecting rods respectively. Two guiding columns are fixedly installed on one side of the cultivation box, and the guiding columns penetrate through the adjusting plate. The guiding columns penetrate through the adjusting plate and are in sliding fit with the adjusting plate.

[0010] A further setting of the present invention is that: an installation frame is fixedly installed on one side of the cultivation box, and a vibration motor is fixedly installed on the installation frame.

[0011] A further setting of the present invention is that: one end of the detection wire is fixedly connected with a connecting column. The connecting column penetrates through the second mounting plate and is in sliding fit with the second mounting plate. A limiting cylinder is threadedly installed at the end of the connecting column far away from the detection wire.

[0012] A further setting of the present invention is that: a vibration rod is connected to the vibration motor, and transmission rods are fixedly installed at both ends of the vibration rod. Both ends of the second mounting plate are fixedly connected to the two transmission rods respectively.

[0013] The method for predicting drought resistance of the above sugarcane root observation device includes the following steps:

[0014] S1. During cultivation, put the soil into the cultivation box so that multiple root position detection components are buried in the soil, and make multiple detection wires in a straightened state, so that the connection points between the detection wires and the elastic ropes are on the same straight line;

[0015] S2. Plant the sugarcane into the cultivation box. As the sugarcane grows, the roots of the sugarcane gradually grow downward into the soil. When the roots of the sugarcane grow to the corresponding depth of the root position detection component, the roots of the sugarcane will come into contact with the detection wire, thereby pushing the detection wire to make it bend, so that the position of the connection point between the detection wire and the elastic rope changes. By observing the position of the connection point between the detection wire and the elastic rope, it can be judged whether there are sugarcane roots beside the detection wire;

[0016] S3. By observing the number of bent detection wires at a certain depth, the area covered by the root system at that depth can be inferred. By observing the lowermost detection wire that bends, the maximum depth reached by the root system can be inferred. The deeper the sugarcane root system grows, the wider the coverage area, and the better the drought resistance of the sugarcane.

[0017] In summary, the present invention has the following beneficial effects: By observing the position of the connection between the detection wire and the elastic rope, it can be determined whether there is a sugarcane root system beside the detection wire, thereby enabling the determination of the growth depth and coverage breadth of the sugarcane root system. By simply setting multiple groups of detection wires, the growth condition of the sugarcane root system can be determined. The cost of the device is relatively low, and the observed sugarcane root system remains inside the soil, resulting in less influence on the root system by the external temperature, thus making the drought resistance test result of the sugarcane more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structure diagram of the present invention;

[0019] Figure 2 is a three-dimensional structure diagram of another perspective of the present invention;

[0020] Figure 3 is a top view structure diagram of the present invention;

[0021] Figure 4 is a three-dimensional structure diagram of the root position detection component of the present invention;

[0022] Figure 5 For the present invention Figure 4 is an enlarged structure diagram at A of the present invention;

[0023] Figure 6 For the present invention Figure 4 is an enlarged structure diagram at B of the present invention;

[0024] Figure 7 is a three-dimensional structure diagram of the detection wire, elastic rope and connecting column of the present invention;

[0025] Figure 8 is a three-dimensional structure diagram of the adjustment component and the adjustment rod of the present invention.

[0026] In the figure: 1, cultivation box; 2, mounting frame; 3, vibration motor; 4, root position detection component; 41, detection wire; 42, first mounting plate; 43, second mounting plate; 44, first connecting rod; 45, elastic rope; 46, identification ball; 47, connecting column; 48, limiting cylinder; 49, support column; 5, vibration rod; 6, transmission rod; 7, adjustment rod; 8, second connecting rod; 9, adjustment plate; 10, adjustment screw; 11, guide post. DETAILED DESCRIPTION OF THE INVENTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Please refer to Figures 1 to 5 , in the embodiment of the present invention, a sugarcane root observation device includes a cultivation box 1. A plurality of root position detection components 4 are arranged inside the cultivation box 1, and the plurality of root position detection components 4 are distributed at different heights. The root position detection component 4 includes a detection wire 41, a first mounting plate 42, a second mounting plate 43 and a support column 49. The first mounting plate 42 and the second mounting plate 43 are respectively embedded and installed on two opposite side walls of the cultivation box 1. The support column 49, the first mounting plate 42 and the second mounting plate 43 are located on the same horizontal plane. The detection wire 41 is made of a flexible metal wire and an anti-corrosion coating is provided on the outer wall. The first mounting plate 42 is arranged between the second mounting plate 43 and the support column 49. Both ends of the support column 49 are fixedly installed with first connecting rods 44. The support column 49 is fixedly connected to the outer side wall of the first mounting plate 42 through two first connecting rods 44. A plurality of detection wires 41 are provided, and the plurality of detection wires 41 are arranged in parallel with each other. One end of the detection wire 41 is connected to the second mounting plate 43, and the other end of the detection wire 41 penetrates through the first mounting plate 42 and is fixedly connected to an elastic rope 45 at this end. The elastic rope 45 bypasses the support column 49 and is fixedly connected to the first mounting plate 42. The detection wire 41 can slide relative to the first mounting plate 42. The distance between adjacent two detection wires 41 is 3-10 mm. During cultivation, soil is put into the cultivation box 1, so that a plurality of root position detection components 4 are all buried in the soil, and a plurality of detection wires 41 are all in a straightened state, so that the connection positions of the detection wires 41 and the elastic rope 45 are on the same straight line. Then, sugarcane can be cultivated in the cultivation box 1. As the sugarcane grows, the roots of the sugarcane gradually grow deeper into the soil. When the roots of the sugarcane grow to the corresponding depth of the root position detection component 4, the roots of the sugarcane will contact the detection wire 41, thereby pushing the detection wire 41 to bend, so that the position of the connection between the detection wire 41 and the elastic rope 45 changes. By observing the position of the connection between the detection wire 41 and the elastic rope 45, it can be judged whether there is a sugarcane root beside the detection wire 41, so that the growth depth and coverage breadth of the sugarcane roots can be judged. By only arranging multiple groups of detection wires 41, the growth situation of the sugarcane roots can be judged. The cost of the device is relatively low, and the observed sugarcane roots are still inside the soil, so that the sugarcane roots are less affected by the external temperature, and the drought resistance test result of the sugarcane is more accurate.

[0029] In this embodiment, preferably, a marking ball 46 is sleeved on the detection wire 41 near the elastic rope 45. Through the setting of the marking ball 46, the movement of the detection wire 41 is more convenient to observe.

[0030] It should be noted that the coverage area of sugarcane is an estimated value. The estimation principle is that the root system of sugarcane generally distributes in a circular shape. The distance between the two outermost bent detection wires 41 at a certain depth is the diameter of the circular area covered by the root system at that depth. The specific area of the sugarcane root system needs to be calculated and estimated through multiple experiments and establishing a mathematical model.

[0031] Please refer to Figures 4 to 8 In the embodiment of the present invention, one side of the first mounting plate 42 is provided with an adjusting rod 7. A through groove is formed inside the adjusting rod 7, and the detection wire 41 penetrates through the through groove. One side of the cultivation box 1 is provided with an adjusting assembly, and the adjusting assembly is in transmission connection with the adjusting rod 7. The diameter of the identification ball 46 is greater than the distance between the upper and lower groove walls of the through groove on the adjusting rod 7, so that the identification ball 46 cannot pass through the through groove. During the process of arranging the soil, in order to avoid the detection wire 41 being bent, first move the adjusting rod 7 through the adjusting assembly, so that the adjusting rod 7 moves to contact the identification ball 46 and pushes the identification ball 46 to move, so that the identification ball 46 straightens the detection wire 41. After the soil arrangement is completed, the adjusting rod 7 can be moved to a position away from the identification ball 46.

[0032] In this embodiment, preferably, the adjusting assembly includes an adjusting plate 9, a second connecting rod 8, and an adjusting screw 10. The adjusting plate 9 is arranged on one side of the cultivation box 1. The adjusting screw 10 penetrates through the adjusting plate 9, and the adjusting screw 10 is in threaded connection with the adjusting plate 9. One end of the adjusting screw 10 is rotatably connected to the side wall of the cultivation box 1, and the other end of the adjusting screw 10 is fixedly installed with a knob. Both ends of the adjusting plate 9 are fixedly installed with second connecting rods 8, and both ends of the adjusting rod 7 are fixedly connected to the two second connecting rods 8 respectively. Two guide posts 11 are fixedly installed on one side of the cultivation box 1, and the guide posts 11 penetrate through the adjusting plate 9. The guide posts 11 penetrate through the adjusting plate 9 and are slidably matched with the adjusting plate 9. When it is necessary to drive the adjusting rod 7 to move, rotate the adjusting screw 10. When the adjusting screw 10 rotates, it drives the adjusting plate 9 to move. When the adjusting plate 9 moves, it drives the second connecting rod 8 to move, thereby driving a plurality of adjusting rods 7 to move.

[0033] In this embodiment, preferably, an installation frame 2 is fixedly installed on one side of the cultivation box 1, and a vibration motor 3 is fixedly installed on the installation frame 2. After the soil is arranged, the cultivation box 1 can be driven to vibrate by the vibration motor 3, so as to compact the arranged soil. During the vibration process, it is necessary to straighten the detection wire 41 through the adjusting rod 7.

[0034] When it is necessary to dig out the root system of sugarcane from the soil after the drought resistance test of sugarcane is completed, a small amount of sugarcane root systems may wind around the detection wire 41, resulting in difficulty in digging out the sugarcane root systems. Therefore, the following embodiments are provided.

[0035] Please refer to Figures 2 to 7 In the embodiment of the present invention, one end of the detection wire 41 is fixedly connected with a connecting column 47. The connecting column 47 penetrates through the second mounting plate 43, and the connecting column 47 is slidably matched with the second mounting plate 43. A limiting cylinder 48 is threadedly installed at the end of the connecting column 47 away from the detection wire 41. Through the limitation of the limiting cylinder 48, one end of the detection wire 41 is fixed on the second mounting plate 43. When the sugarcane root system is caught by the detection wire 41 during the excavation process, the limiting cylinder 48 at one end of the detection wire 41 can be rotated to separate the limiting cylinder 48 from the connecting column 47. Then, under the pulling force of the elastic rope 45, the connecting column 47 can extend out of the second mounting plate 43, so that one end of the detection wire 41 is released from the fixation with the second mounting plate 43, and the detection wire 41 will not affect the excavation of the sugarcane root system. At the same time, when it is necessary to observe the epidermal structure of the root system, the limiting cylinder 48 can be unscrewed, the micro-root tube can be fixed on the connecting column 47, and one end of the detection wire 41 can be pulled out of the soil, so that the micro-root tube is pulled into the soil, and then the growth of the root system can be observed through a microscope, so as to be able to observe the epidermal structure of the sugarcane root system specifically.

[0036] In this embodiment, preferably, a vibration rod 5 is connected to the vibration motor 3, and transmission rods 6 are fixedly installed at both ends of the vibration rod 5. The two ends of the second mounting plate 43 are respectively fixedly connected to the two transmission rods 6. When this preferred embodiment is adopted, a rubber sleeve is sleeved on the second mounting plate 43, and the second mounting plate 43 is connected to the cultivation box 1 through the rubber sleeve. The setting of the rubber sleeve enables the second mounting plate 43 to move slightly relative to the cultivation box 1. When the vibration motor 3 vibrates, the vibration motor 3 can drive the transmission rod 6 to vibrate through the vibration rod 5, thereby driving the second mounting plate 43 to vibrate. When the second mounting plate 43 vibrates, it can drive the detection wire 41 to vibrate, so that the detection wire 41 can also vibrate together with the vibration motor 3. The vibration of the detection wire 41 can further improve the soil compaction speed.

[0037] The present invention also provides a method for predicting the drought resistance of a sugarcane root system observation device, including the following steps:

[0038] S1. During cultivation, put soil into the cultivation box 1 so that multiple root position detection components 4 are buried in the soil, and make multiple detection wires 41 in a straightened state, so that the connection points of the detection wires 41 and the elastic ropes 45 are on the same straight line;

[0039] S2. Cultivate sugarcane in the cultivation box 1. As the sugarcane grows, its root system gradually grows deeper into the soil. When the root system of the sugarcane grows to the depth corresponding to the root position detection component 4, the root system of the sugarcane will come into contact with the detection wire 41, thereby pushing the detection wire 41 to make it bend, so that the position of the connection between the detection wire 41 and the elastic rope 45 changes. By observing the position of the connection between the detection wire 41 and the elastic rope 45, it can be judged whether there is a sugarcane root system beside the detection wire 41;

[0040] S3. By observing the number of bends of the detection wire 41 at a certain depth, the area covered by the root system at this depth can be inferred. By observing the detection wire 41 that generates bends at the bottom, the maximum depth of the root system penetration can be inferred. The deeper the sugarcane root system grows, the wider the coverage area, and the better the drought resistance of the sugarcane.

[0041] The above is only the preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A sugarcane root observation device, comprising a cultivation box (1), characterized in that: Inside the cultivation box (1), a plurality of root position detection components (4) are provided. The plurality of root position detection components (4) are distributed at different heights. The root position detection component (4) includes a detection wire (41), a first mounting plate (42), a second mounting plate (43) and a support column (49). The first mounting plate (42) and the second mounting plate (43) are respectively embedded and installed on two opposite side walls of the cultivation box (1). The first mounting plate (42) is arranged between the second mounting plate (43) and the support column (49). A plurality of detection wires (41) are provided. The plurality of detection wires (41) are arranged in parallel with each other. One end of the detection wire (41) is connected to the second mounting plate (43). The other end of the detection wire (41) penetrates through the first mounting plate (42) and an elastic rope (45) is fixedly connected to this end. The elastic rope (45) bypasses the support column (49) and is fixedly connected to the first mounting plate (42).

2. The sugarcane root observation device according to claim 1, wherein: A marking ball (46) is sleeved on the detection wire (41) at a position close to the elastic rope (45).

3. The sugarcane root observation device according to claim 2, characterized in that: One side of the first mounting plate (42) is provided with an adjusting rod (7). A through groove is formed inside the adjusting rod (7). The detection wire (41) penetrates through the through groove. One side of the cultivation box (1) is provided with an adjusting component. The adjusting component is in transmission connection with the adjusting rod (7).

4. The sugarcane root observation device according to claim 3, characterized in that: The adjusting component includes an adjusting plate (9), a second connecting rod (8) and an adjusting screw (10). The adjusting plate (9) is arranged on one side of the cultivation box (1). The adjusting screw (10) penetrates through the adjusting plate (9), and the adjusting screw (10) is in threaded connection with the adjusting plate (9). One end of the adjusting screw (10) is rotatably connected to the side wall of the cultivation box (1). A knob is fixedly installed at the other end of the adjusting screw (10). Second connecting rods (8) are fixedly installed at both ends of the adjusting plate (9). Both ends of the adjusting rod (7) are respectively fixedly connected to the two second connecting rods (8). Two guide columns (11) are fixedly installed on one side of the cultivation box (1). The guide columns (11) penetrate through the adjusting plate (9). The guide columns (11) penetrate through the adjusting plate (9), and the guide columns (11) are in sliding fit with the adjusting plate (9).

5. The sugarcane root observation device according to claim 4, characterized in that: An installation frame (2) is fixedly installed on one side of the cultivation box (1). A vibration motor (3) is fixedly installed on the installation frame (2).

6. The sugarcane root observation device according to claim 4, characterized in that: One end of the detection wire (41) is fixedly connected to a connecting column (47). The connecting column (47) penetrates through the second mounting plate (43). The connecting column (47) is in sliding fit with the second mounting plate (43). A limiting cylinder (48) is threadedly installed at the end of the connecting column (47) away from the detection wire (41).

7. The sugarcane root observation device according to claim 5, characterized in that: A vibration rod (5) is connected to the vibration motor (3). Transmission rods (6) are fixedly installed at both ends of the vibration rod (5). Both ends of the second mounting plate (43) are respectively fixedly connected to the two transmission rods (6).

8. A method for predicting drought resistance using a sugarcane root system observation device according to any one of claims 1-7, characterized in that, Comprising the following steps: S1. During cultivation, put soil into the cultivation box (1) so that multiple root position detection components (4) are all buried in the soil, and make multiple detection wires (41) in a straightened state, and make the connection points of the detection wires (41) and the elastic ropes (45) located on the same straight line; S2. Plant sugarcane into the cultivation box (1). As the sugarcane grows, the roots of the sugarcane gradually grow deeper into the soil. When the roots of the sugarcane grow to the corresponding depth of the root position detection component (4), the roots of the sugarcane will come into contact with the detection wire (41), thereby pushing the detection wire (41) to make it bend, so that the position of the connection point of the detection wire (41) and the elastic rope (45) changes. By observing the position of the connection point of the detection wire (41) and the elastic rope (45), it can be judged whether there are sugarcane roots beside the detection wire (41); S3. By observing the number of bent detection wires (41) at a certain depth, the area covered by the roots at this depth can be inferred. By observing the lowermost detection wire (41) that generates bending, the maximum depth of the root penetration can be inferred. The deeper the sugarcane roots grow, the wider the coverage area, and the better the drought resistance of the sugarcane.

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