Rain-fed spring corn drought resistance and biomass coupled moisture utilization efficiency monitoring device

Abstract

The invention provides a rain-fed spring corn drought resistance and biomass coupled moisture utilization efficiency monitoring device, which belongs to the technical field of corn planting, and comprises a planting box, a tubular moisture content meter and a surrounding frame, a plurality of planting spaces are arranged in the planting box, gravity sensors are placed in the planting spaces, and the gravity sensors are filled with soil and used for planting corn; the tubular moisture content meters are buried in soil at intervals and are used for monitoring the moisture content, temperature and conductivity of different soil layers; the surrounding frame is placed on the planting box, and a plurality of rubber check curtains are arranged on one side of the surrounding frame and used for preventing water drops from splashing out; wherein a shifting assembly is movably arranged on one side of the planting box and used for moving the shifting assembly to drill in and pull out the tubular moisture content instrument if the tubular moisture content instrument needs to be moved in the corn growth process, operation is easy and convenient, and use is convenient.

Description

Technical Field

[0001] This invention belongs to the field of maize planting technology, and more specifically, it relates to a water use efficiency monitoring device that couples drought resistance and biomass in rainfed spring maize. Background Technology

[0002] Rainfed spring maize, a staple crop in arid and semi-arid regions of northern my country, directly impacts regional food security and agricultural economic development due to its yield stability. In approximately 45% of spring maize planting areas in my country, the rainfed model (relying entirely on natural rainfall without artificial irrigation) dominates. Under this model, the spatiotemporal heterogeneity of soil moisture and the randomness of rainfall distribution constitute the core environmental factors restricting spring maize growth. Water use efficiency, a key indicator of a crop's biomass accumulation capacity under limited water conditions, and its coupling relationship with crop drought resistance and biomass formation, is a core scientific question in understanding the "water-growth-yield" relationship mechanism of rainfed spring maize. It also serves as an important theoretical basis for guiding drought-resistant breeding, optimizing cultivation techniques, and improving field management.

[0003] Currently, the most common technology for monitoring rain-fed spring maize involves placing weight sensors on the soil under the soil in the monitored field and inserting moisture sensors to monitor water use efficiency. However, as monitoring progresses, it is often necessary to relocate the moisture sensors to obtain corresponding soil values ​​in different areas. Currently, the relocation of moisture sensors is still a relatively primitive method, which is time-consuming and labor-intensive. In addition, during monitoring, maize seedlings often die for various reasons, and there is no proper method for removing the dead seedlings.

[0004] Based on the above-mentioned technical problems, the applicant of this application has designed a water use efficiency monitoring device that couples drought resistance and biomass of rainfed spring maize. Summary of the Invention

[0005] The purpose of this invention is to provide a water use efficiency monitoring device that couples drought resistance and biomass in rainfed spring maize, in order to solve the technical problems in the prior art that it is time-consuming and laborious to relocate the water sensor, and that there is no proper method for removing dead maize seedlings.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A water use efficiency monitoring device coupling drought resistance and biomass of rain-fed spring maize is provided, comprising a planting box, a tubular moisture meter, and a surrounding frame; the planting box has several planting spaces inside, each containing a gravity sensor filled with soil for planting maize; the tubular moisture meter is intermittently buried in the soil to monitor the moisture content, temperature, and conductivity of different soil layers; the surrounding frame is placed on the planting box, one side of which has several rubber curtains to prevent water droplets from splashing out; wherein, a movable displacement component is provided on one side of the planting box to cooperate with the tubular moisture meter, thereby shifting the tubular moisture meter.

[0007] In one possible implementation, based on the above technical solutions, the tubular moisture meter includes an instrument body, a square head, and a threaded soil inlet head; the square head is fixedly connected to the upper end of the instrument body for displacement in cooperation with the displacement assembly, and the threaded soil inlet head is fixedly connected to the lower end of the instrument body for easy drilling and extraction of the soil.

[0008] In one possible implementation, based on the above technical solutions, the displacement component includes an edge protrusion, a displacement telescopic part, and a working part; the edge protrusion is fixed to one side of the planting box, the displacement telescopic part is movably disposed on the edge protrusion, and the working part is movably disposed on one side of the displacement telescopic part; when the displacement telescopic part moves on the edge protrusion, it will drive the working part to move together.

[0009] In one possible implementation, based on the above technical solutions, a sliding groove is provided within the edge protrusion. The sliding groove includes an arc-shaped groove and a vertical groove, which are connected. The displacement telescopic part includes a slider and a telescopic component. The slider includes an arc-shaped block and a vertical block, which are connected and respectively engage with the arc-shaped groove and the vertical groove. The working part includes a rotating table, a push-pull table, and a screwing assembly. The rotating table is located at the end of the telescopic component and has a push-pull groove. The push-pull table is movably disposed within the push-pull groove. The screwing assembly is installed at both ends of the push-pull table. When drilling into or pulling out the tubular moisture meter is required, the rotating table is rotated, and the position of the push-pull table is adjusted. The screwing assembly and the telescopic component are then operated to cooperate in completing the work.

[0010] In one possible implementation, based on the above technical solutions, the twisting assembly includes a first driving member, a first twisting member, a second driving member, and a second twisting member. The first driving member and the second driving member are respectively disposed at both ends of the push-pull table. The output ends of the first driving member and the second driving member pass through the push-pull table and are respectively connected to the first twisting member and the second twisting member to drive the rotation of the first twisting member and the second twisting member.

[0011] In one possible implementation, based on the above technical solutions, the first rotating member includes a top plate, a first bending plate, and a second bending plate. The top plate is connected to the first driving member and has a protruding insert post. The first bending plate is connected to one side of the top plate, and the second bending plate is connected to the other side of the top plate. The end of the square head has a slot that mates with the insert post. The first rotating member and the second rotating member are symmetrical structures. The first rotating member is used to drive the tubular moisture meter to rotate forward, and the second rotating member is used to drive the tubular moisture meter to rotate in reverse.

[0012] In one possible implementation, based on the above technical solutions, the rotating platform is further provided with a pulling component. The pulling component includes a pulling platform and a pulling part. The pulling platform is rotatably mounted on the rotating platform and has a pulling groove. The pulling part is movably mounted in the pulling groove. The pulling part includes a movable frame, a first clamp, and a second clamp. The movable frame is located in the pulling groove. The first clamp and the second clamp are in a cross-shaped state and are connected by a hinge shaft, thereby being fixed in the movable frame. The ends of the first clamp and the second clamp are fitted with rubber sleeves to prevent the first clamp and the second clamp from slipping when pulling out the plant.

[0013] In one possible implementation, in conjunction with the above technical solutions, a cover plate is also provided at one end of the surrounding frame, and a blower assembly is provided on the cover plate. A first air vent is opened on the cover plate, and the blower assembly blows air into the surrounding frame through the first air vent.

[0014] In one possible implementation, in conjunction with the above technical solutions, a corrugated plate is also provided inside the cover plate, and an air duct is formed between the corrugated plate and the cover plate. A second air vent is provided at the trough of the corrugated plate, and the air in the air duct is blown into the surrounding frame through the second air vent.

[0015] In one possible implementation, based on the above technical solutions, the surrounding frame is further provided with a water delivery assembly. The water delivery assembly includes a third driving component, a threaded rod, and a spray head. The third driving component is fixed to one side of the surrounding frame. The threaded rod is rotatably disposed within the surrounding frame and connected to the third driving component. The spray head is threadedly connected to the threaded rod. When the threaded rod rotates, it drives the spray head to move. The spray head has slots on both sides, and water droplet forming components are engaged in the slots. The water droplet forming components have water droplet holes to condense the water mist sprayed by the spray head into water droplets that fall down.

[0016] The beneficial effects of the water use efficiency monitoring device for drought resistance and biomass coupling provided by this invention are as follows: Compared with the prior art, the water use efficiency monitoring device for drought resistance and biomass coupling provided by this invention has corn planted in the soil of the planting box, and several tubular moisture meters are arranged at intervals in the soil. A displacement component is provided on one side of the frame. If it is necessary to move the tubular moisture meters during the corn growth process, the displacement component can be moved to drill into and pull out the tubular moisture meters. The operation is simple and convenient. In addition, a twisting component is also provided on one side of the displacement component. By setting the twisting component, when a plant is found to be dead, the twisting component can be operated to clamp the dead plant. Then, by cooperating with the displacement component, the plant can be removed. The removal process is smooth and convenient. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the water use efficiency monitoring device that couples drought resistance and biomass of rain-fed spring maize provided in an embodiment of the present invention; Figure 2 A schematic diagram of the water use efficiency monitoring device that couples drought resistance and biomass of rain-fed spring maize provided in an embodiment of the present invention from another perspective. Figure 3 An exploded view of the top plate and corrugated plate of the water use efficiency monitoring device for drought resistance and biomass coupling of rain-fed spring maize provided in an embodiment of the present invention. Figure 4 A schematic diagram of the displacement component of the water use efficiency monitoring device that couples drought resistance and biomass of rain-fed spring maize provided in an embodiment of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 A schematic diagram of a tubular moisture meter for a water use efficiency monitoring device that couples drought resistance and biomass of rain-fed spring maize provided in an embodiment of the present invention. Figure 7 A schematic diagram of the removal component of the water use efficiency monitoring device that couples drought resistance and biomass of rain-fed spring maize provided in an embodiment of the present invention. Figure 8 for Figure 7 Another structural diagram from a different perspective; Figure 9 for Figure 8 Enlarged view of point B in the middle; Figure 10 A schematic diagram of the corrugated plate of the water use efficiency monitoring device that couples drought resistance and biomass of rain-fed spring maize provided in an embodiment of the present invention. Figure 11 A partial cross-sectional view of the corrugated plate of the water use efficiency monitoring device for coupling drought resistance and biomass of rain-fed spring maize provided in an embodiment of the present invention. Figure 12 This is a schematic diagram of the structure of the water droplet forming component of the water use efficiency monitoring device for coupling drought resistance and biomass of rain-fed spring maize provided in an embodiment of the present invention, when the water droplet forming component is set in the spray head. Figure 13 This is a schematic diagram of the structure of the water droplet-shaped component of the water use efficiency monitoring device that couples drought resistance and biomass of rainfed spring maize provided in an embodiment of the present invention.

[0019] The labels for the attached figures are as follows: 100. Planting box; 110. Soil; 200. Tube moisture meter; 210. Instrument body; 220, Square head; 221, Slot; 230, Threaded insert head; 300, Surrounding frame; 310. Rubber curtain; 400. Displacement assembly; 410. Edge protrusion; 411. Slide groove; 4111, Arc-shaped groove; 4112, Vertical groove; 420, Displacement telescopic part; 421, Slider; 4211. Arc-shaped block; 4212. Vertical block; 422. Telescopic component; 430. Working unit; 431. Rotating table; 4311. Push-pull groove; 432. Push-pull table; 433. Twisting assembly; 4331, First driving component; 4332, First turning component; 43321, Top plate; 43322, First bent plate; 43323, Second bent plate; 43324, Inserted post; 4333, Second driving component; 4334, Second turning component; 500, Removal assembly; 510. Removal platform; 511. Removal slot; 520. Removal section; 521. Movable frame; 522. First clamping body; 523. Second clamping body; 524. Rubber sleeve; 600. Cover plate; 610. Air blower assembly; 620. First air vent; 630. Corrugated plate; 631. Second air vent; 700. Water delivery assembly; 710. Third drive unit; 720. Threaded rod; 730. Spray head; 731, Card slot; 740, Teardrop-shaped part; 741, Teardrop hole. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain the invention and are not intended to limit the invention. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be further noted that the accompanying drawings and embodiments of the present invention mainly describe the concept of the present invention. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of the present invention, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0022] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0024] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0026] The water use efficiency monitoring device that couples drought resistance and biomass of rainfed spring maize provided by the present invention will now be described.

[0027] like Figures 1 to 13 As shown, this invention provides a water use efficiency monitoring device that couples drought resistance and biomass in rain-fed spring maize, including a planting box 100, a tubular moisture meter 200, and a surrounding frame 300. The planting box 100 has several planting spaces, each containing a gravity sensor filled with soil 110 for planting maize. The device monitors the weight of the soil and maize plants in the planting space in real time, and by continuously measuring weight changes, it can directly and accurately calculate the daily water consumption of the crop. The tubular moisture meter 200 is intermittently buried in the soil 110 to monitor the moisture content, temperature, and conductivity of different soil layers. The surrounding frame 300 is placed on the planting box 100, and one side of the frame 300 has several rubber curtains 310 to prevent water droplets from splashing out. A movable displacement component 400 is provided on one side of the planting box 100 to cooperate with the tubular moisture meter 200, allowing the tubular moisture meter 200 to be moved.

[0028] The water use efficiency monitoring device for rain-fed spring maize drought resistance coupled with biomass provided by this invention, compared with the prior art, has maize planted in soil 110 within a planting box 100, and several tubular moisture meters 200 are arranged at intervals in the soil 110. A displacement component 400 is provided on one side of the frame 300. During the maize growth process, if it is necessary to move the tubular moisture meters 200, the displacement component 400 can be moved. Because one side of the frame 300 is a rubber curtain 310, the displacement component 400 can easily enter the frame 300, thereby operating the displacement component 400 to drill in and pull out the tubular moisture meters 200. The operation is simple and convenient.

[0029] like Figure 6 As shown, in a specific embodiment of the water use efficiency monitoring device for drought resistance and biomass coupling of rain-fed spring maize provided in this invention, the tubular moisture meter 200 includes an instrument body 210, a square head 220, and a threaded soil entry head 230; the square head 220 is fixedly connected to the upper end of the instrument body 210 for displacement in cooperation with the displacement component 400, and the threaded soil entry head 230 is fixedly connected to the lower end of the instrument body 210 for easy drilling into and pulling out of the soil 110.

[0030] Specifically, this device is a modification of the common tubular moisture meter 200 on the market. A square head 220 is installed at the top of the existing instrument body 210, and a threaded soil insertion head 230 is connected to the bottom of the instrument body 210. If it is necessary to drill into the tubular moisture meter 200, the square head 220 is rotated clockwise and continuous downward pressure is applied, and the tubular moisture meter 200 can drill into the soil 110. If it is necessary to remove the tubular moisture meter 200, the square head 220 is rotated counterclockwise and continuous upward pulling force is applied, and the tubular moisture meter 200 can be removed from the soil 110.

[0031] like Figure 4 and Figure 5 As shown, in a specific embodiment of the water use efficiency monitoring device for drought resistance and biomass coupling of rain-fed spring maize provided in this invention, the displacement component 400 includes an edge protrusion 410, a displacement telescopic part 420, and an operating part 430; the edge protrusion 410 is fixed on one side of the planting box 100, the displacement telescopic part 420 is movably disposed on the edge protrusion 410, and the operating part 430 is rotatably disposed on one side of the displacement telescopic part 420. When the displacement telescopic part 420 moves on the edge protrusion 410, it will drive the operating part 430 to move together.

[0032] It should be noted that the edge protrusion 410 is fixed to one side of the planting box 100. The specific connection method can be welding or fastener connection. The displacement telescopic part 420 can move along the edge protrusion 410, thereby driving the working part 430 to move to various positions, so that the working part 430 can move the tubular moisture meter 200 located in different positions.

[0033] like Figure 5 and Figure 7 As shown in a specific embodiment of the water use efficiency monitoring device for drought resistance and biomass coupling of rain-fed spring maize provided in this invention, a groove 411 is provided in the edge protrusion 410. The groove 411 includes an arc-shaped groove 4111 and a vertical groove 4112, which are connected. The displacement telescopic part 420 includes a slider 421 and a telescopic member 422. The slider 421 includes an arc-shaped block 4211 and a vertical block 4212, which are connected and respectively connected to the arc-shaped groove 4111. The 111 and the vertical groove 4112 fit together. The working part 430 includes a rotating table 431, a push-pull table 432 and a screwing assembly 433. The rotating table 431 is located at the end of the telescopic member 422 and has a push-pull groove 4311. The push-pull table 432 is movably located in the push-pull groove 4311. The screwing assembly 433 is installed at both ends of the push-pull table 432. When it is necessary to drill into or pull out the tubular moisture meter 200, the rotating table 431 is rotated and the position of the push-pull table 432 is adjusted. The screwing assembly 433 and the telescopic member 422 are operated to cooperate to complete the work.

[0034] Furthermore, to prevent soil from easily entering the chute 411 and hindering the smooth movement of the displacement component 400, the chute 411 is divided into an arc-shaped chute 4111 and a vertical chute 4112, such as... Figure 5 As shown, the arc-shaped groove 4111 faces downwards, and the upright groove 4112 communicates with the arc-shaped groove 4111. When the displacement telescopic part 420 needs to be installed, the arc-shaped block 4211 and the upright block 4212 are inserted into the arc-shaped groove 4111 and the upright groove 4112, and the displacement telescopic part 420 will be "hung" on the edge protrusion 410. At this time, the displacement telescopic part 420 can move along the edge protrusion 410. When it is necessary to drill into or pull out the tubular moisture meter 200, the rotating table 431 is rotated so that the push-pull table 432 enters the surrounding frame 300 through the rubber curtain 310. Then, the twisting component 433 is operated and cooperates with the telescopic part 422 to complete the corresponding work. The telescopic part 422 is provided with a lifting button to control the lifting of the output end of the telescopic part 422. The telescopic part 422 can be an electric telescopic rod or a hydraulic cylinder, etc.

[0035] like Figures 7 to 9As shown, in a specific embodiment of the water use efficiency monitoring device for drought resistance and biomass coupling of rain-fed spring maize provided in this invention, the twisting component 433 includes a first driving member 4331, a first twisting member 4332, a second driving member 4333, and a second twisting member 4334. The first driving member 4331 and the second driving member 4333 are respectively disposed at both ends of the push-pull table 432. The output ends of the first driving member 4331 and the second driving member 4333 pass through the push-pull table 432 and are respectively connected to the first twisting member 4332 and the second twisting member 4334 to drive the rotation of the first twisting member 4332 and the second twisting member 4334 respectively; the first twisting member 4333... Component 4332 includes a top plate 43321, a first bending plate 43322, and a second bending plate 43323. The top plate 43321 is connected to the first driving component 4331 and has a protruding insertion post 43324. The first bending plate 43322 is connected to one side of the top plate 43321, and the second bending plate 43323 is connected to the other side of the top plate 43321. The end of the square head 220 is provided with a slot 221 that mates with the insertion post 43324. The first rotating component 4332 and the second rotating component 4334 have a symmetrical structure. The first rotating component 4332 is used to drive the tubular moisture meter 200 to rotate forward, and the second rotating component 4334 is used to drive the tubular moisture meter 200 to rotate in reverse.

[0036] More specifically, when it is necessary to remove the tubular moisture meter 200, rotate the rotating table 431 so that the push-pull table 432 enters the surrounding frame 300 through the rubber curtain 310. The push-pull table 432 can move forward or backward along the push-pull groove 4311. After moving to the position above the corresponding tubular moisture meter 200, operate the second drive member 4333 to drive the second turning member 4334 to be perpendicular to the square head 220 of the tubular moisture meter 200 below it. Then operate the telescopic member 422 to descend, so that the insertion post 43324 is inserted into the slot 221. Then, continue to start the second drive member 4333 to reverse it. At this time, the first bending plate 43322 and the second bending plate 4332 of the second turning member 4334 are in a reverse position. The three square heads 220 engage and drive the tubular moisture meter 200 to reverse. At this time, the telescopic component 422 continuously applies upward pulling force, which can work together to pull out the tubular moisture meter 200. When drilling into the tubular moisture meter 200, the first turning component 4332 engages with the square head 220 first, and then the tubular moisture meter 200 is moved to a suitable position. Then, the first driving component 4331 is activated to drive the tubular moisture meter 200 to rotate forward, and at the same time, downward pressure is applied, which can then drive the tubular moisture meter 200 into the soil 110. The first driving component 4331 and the second driving component 4333 are both motors, and the control buttons for the first driving component 4331 and the second driving component 4333 are located on the push-pull table 432.

[0037] like Figure 7 As shown in the embodiment of the water use efficiency monitoring device for drought resistance and biomass coupling of rain-fed spring maize provided in this invention, the rotating table 431 is further provided with a pulling component 500. The pulling component 500 includes a pulling platform 510 and a pulling part 520. The pulling platform 510 is rotatably mounted on the rotating table 431. The rotating table 431 has a pulling groove 511. The pulling part 520 is movably mounted in the pulling groove 511. The pulling part 520 includes a movable frame 521, a first clamp 522 and a second clamp 523. The movable frame 521 is located in the pulling groove 511. The first clamp 522 and the second clamp 523 are in a cross state and are connected by a hinge shaft, thereby being fixed in the movable frame 521. The ends of the first clamp 522 and the second clamp 523 are fitted with rubber sleeves 524 to prevent the first clamp 522 and the second clamp 523 from slipping off when pulling out the plant.

[0038] Here, during the growth process of the plant, it may die for various reasons. At this time, it is necessary to pull out the dead plant. By setting the pulling component 500 on the rotating table 431, during operation, the pulling table 510 is rotated, which causes the rubber sleeves 524 of the first clamp 522 and the second clamp 523 of the pulling part 520 to face the dead plant. After the direction is set, the movable frame 521 can be moved towards the dead plant by pushing and pulling. Finally, the first clamp 522 and the second clamp 523 are operated to clamp the plant. And because the rubber sleeves 524 are set at the ends of the first clamp 522 and the second clamp 523, the rubber sleeves 524 will not dislodge under the action of huge friction during the clamping process with the plant. After clamping, the telescopic part 422 is operated to continuously apply upward pulling force, and the plant can be pulled out. To make operation easier, a tension spring can be connected between the handheld ends of the first clamp 522 and the second clamp 523. In this way, before each removal of a plant, it is not necessary to manually separate the rubber sleeves 524 of the first clamp 522 and the second clamp 523 each time. The movable frame 521 can be moved directly along the removal groove 511.

[0039] like Figure 10 and Figure 11As shown in a specific embodiment of the water use efficiency monitoring device for drought resistance and biomass coupling of rain-fed spring maize provided in this invention, a cover plate 600 is also provided at one end of the surrounding frame 300. A blowing component 610 is also provided on the cover plate 600. This blowing component 610 can blow air, hot air, and cold air. A first air vent 620 is provided on the cover plate 600. The blowing component 610 blows air into the surrounding frame 300 through the first air vent 620. A corrugated plate 630 is also provided inside the cover plate 600. An air duct is formed between the corrugated plate 630 and the cover plate 600. A second air vent 631 is provided at the trough of the corrugated plate 630. The air in the air duct is blown into the surrounding frame 300 through the second air vent 631.

[0040] It is important to note that, in order to fully simulate windy weather and prevent only the plants located below the first vent 620 from being fully exposed to the wind, a corrugated plate is also provided inside the cover plate 600. Each trough of the corrugated plate 630 has a second vent 631 set at an angle. By setting the second vent 631 at an angle, the air blown out from the second vent 631 can be directed in one direction and can be blown entirely towards the plants. After the air blower assembly 610 blows out the air, it will all rush into the air duct and then be blown into the surrounding frame 300 through the second vent 631 of the corrugated plate 630. The trough of the corrugated plate 630 is the lowest point of the structure. When the vent is set at this point, the airflow generated by the fan will flow along the curved contour of the corrugated plate 630. The arc structure of the corrugated plate 630 has a natural guiding effect on the airflow, avoiding the airflow turbulence caused by direct blowing. Moreover, the space at the trough is "grooved". After the airflow converges in the groove, it is blown out from the vent, forming a highly directional and uniform airflow bundle.

[0041] like Figure 3 , Figure 12 and Figure 13 As shown, in a specific embodiment of the water use efficiency monitoring device for drought resistance and biomass coupling of rain-fed spring maize provided in this invention, a water delivery component 700 is also provided on the surrounding frame 300. The water delivery component 700 includes a third driving member 710, a threaded rod 720, and a spray head 730. The third driving member 710 is fixed on one side of the surrounding frame 300. The threaded rod 720 is rotatably disposed inside the surrounding frame 300 and connected to the third driving member 710. The third driving member 710 is a motor. The spray head 730 is threadedly connected to the threaded rod 720. When the threaded rod 720 rotates, it drives the spray head 730 to move. The spray head 730 has slots 731 on both sides. A water droplet forming member 740 is engaged in the slots 731. The water droplet forming member 740 has water droplet holes 741 to condense the water mist sprayed by the spray head 730 into water droplets that fall down.

[0042] This device has a water inlet on one side of the spray head 730, and a pipe through-hole on the upper side of the rubber baffle 310 surrounding the frame 300. A baffle is installed on the pipe through-hole, and the water supply pipe enters the surrounding frame 300 through the pipe through-hole and connects to the water inlet. If water is not needed, the water supply pipe can be disconnected and the baffle placed back into the water supply pipe. This device can apply water in two states: mist and droplets. The spray head 730 sprays a mist, which is the mist state at this time. If it needs to be set to a droplet state, the droplet forming part 740 is installed on the slot 731. The droplet-forming component 740 has a droplet plate with droplet holes 741. Water mist gathers on the droplet plate and eventually drips down through the droplet holes 741. To ensure a realistic simulation effect when in a droplet state and reduce water mist passage, the droplet holes 741 on the droplet-forming component 740 are designed as frustum cones, meaning the cross-section of the droplet holes 741 is an isosceles trapezoid. The diameter of the droplet holes 741 is larger at the end closer to the spray head 730 and smaller at the end farther from the spray head 730, increasing the contact area between the droplet plate and the water mist and reducing direct water mist passage through the droplet holes 741. Thus, most of the water mist falls on the upper side of the droplet plate and the side of the droplet holes 741. As the water mist continues to spray out, a large amount of water mist gathers, eventually condensing into droplets and dripping down from the droplet holes 741.

[0043] This device includes two planting boxes 100, which are hinged together. If planting is required in the field, the cover plate 600 and the surrounding frame 300 need to be removed. To ensure monitoring effectiveness and provide the plants with the same conditions, the two planting boxes 100 can be unfolded side by side. If planting is required in the laboratory, the cover plate 600 and the surrounding frame 300 need to be covered, and the two planting boxes 100 need to be folded together side by side to save space. In addition, if planting is done in the laboratory, LED plant growth lights need to be installed on the cover plate 600 to meet the growth needs of the plants.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A water use efficiency monitoring device that couples drought resistance and biomass in rain-fed spring maize, characterized in that, include: The planting box (100) has several planting spaces inside, and a gravity sensor is placed in each planting space. Soil (110) is filled on the gravity sensor for planting corn. A tubular moisture meter (200) is intermittently buried in the soil (110) to monitor the moisture content, temperature and electrical conductivity of different soil layers; The frame (300) is placed on the planting box (100), and one side of the frame (300) is a number of rubber curtains (310) to prevent water droplets from splashing out; The planting box (100) is provided with a displacement component (400) on one side, which is used to cooperate with the tubular moisture meter (200) to move the tubular moisture meter (200).

2. The water use efficiency monitoring device coupling drought resistance and biomass of rain-fed spring maize as described in claim 1, characterized in that: The tubular moisture meter (200) includes an instrument body (210), a square head (220), and a threaded soil inlet head (230); the square head (220) is fixedly connected to the upper end of the instrument body (210) for use with the displacement assembly (400) for displacement, and the threaded soil inlet head (230) is fixedly connected to the lower end of the instrument body (210) for easy drilling into and pulling out of the soil (110).

3. The water use efficiency monitoring device coupling drought resistance and biomass of rain-fed spring maize as described in claim 2, characterized in that: The displacement assembly (400) includes an edge protrusion (410), a displacement telescopic part (420), and a working part (430); the edge protrusion (410) is fixed to one side of the planting box (100), the displacement telescopic part (420) is movably disposed on the edge protrusion (410), and the working part (430) is movably disposed on one side of the displacement telescopic part (420). When the displacement telescopic part (420) moves on the edge protrusion (410), it will drive the working part (430) to move together.

4. The water use efficiency monitoring device coupling drought resistance and biomass of rain-fed spring maize as described in claim 3, characterized in that: The edge protrusion (410) has a groove (411) inside, the groove (411) includes an arc groove (4111) and a vertical groove (4112), the arc groove (4111) and the vertical groove (4112) are connected, the displacement telescopic part (420) includes a slider (421) and a telescopic member (422), the slider (421) includes an arc block (4211) and a vertical block (4212), the arc block (4211) and the vertical block (4212) are connected and respectively fit into the arc groove (4111) and the vertical groove (4112), the working part (430) includes The device includes a rotating platform (431), a push-pull platform (432), and a screwing assembly (433). The rotating platform (431) is located at the end of the telescopic member (422) and has a push-pull groove (4311). The push-pull platform (432) is movably located in the push-pull groove (4311). The screwing assembly (433) is installed at both ends of the push-pull platform (432). When it is necessary to drill into or pull out the tubular moisture meter (200), the rotating platform (431) is rotated and the position of the push-pull platform (432) is adjusted. The screwing assembly (433) and the telescopic member (422) are operated to cooperate to complete the work.

5. The water use efficiency monitoring device coupling drought resistance and biomass of rain-fed spring maize as described in claim 4, characterized in that: The twisting assembly (433) includes a first driving member (4331), a first twisting member (4332), a second driving member (4333), and a second twisting member (4334). The first driving member (4331) and the second driving member (4333) are respectively located at both ends of the push-pull table (432). The output ends of the first driving member (4331) and the second driving member (4333) pass through the push-pull table (432) and are respectively connected to the first twisting member (4332) and the second twisting member (4334) to drive the rotation of the first twisting member (4332) and the second twisting member (4334) respectively.

6. The water use efficiency monitoring device coupling drought resistance and biomass of rain-fed spring maize as described in claim 5, characterized in that: The first rotating component (4332) includes a top plate (43321), a first bending plate (43322), and a second bending plate (43323). The top plate (43321) is connected to the first driving component (4331) and has a protruding insert (43324). The first bending plate (43322) is connected to one side of the top plate (43321), and the second bending plate (43323) is connected to the other side of the top plate (43321). The end of the square head (220) is provided with a slot (221) that cooperates with the insert (43324). The first rotating component (4332) and the second rotating component (4334) are symmetrical structures. The first rotating component (4332) is used to drive the tubular moisture meter (200) to rotate forward, and the second rotating component (4334) is used to drive the tubular moisture meter (200) to rotate in reverse.

7. The water use efficiency monitoring device coupling drought resistance and biomass of rain-fed spring maize as described in claim 4, characterized in that: The rotating platform (431) is also provided with a removal assembly (500), which includes a removal platform (510) and a removal part (520). The removal platform (510) is rotatably mounted on the rotating platform (431), and the rotating platform (431) has a removal groove (511). The removal part (520) is movably mounted in the removal groove (511), and the removal part (520) includes a movable frame (521), a first clamping body (522), and a second clamping body (523). Two clamps (523), the movable frame (521) is located in the removal groove (511), the first clamp (522) and the second clamp (523) are in a cross state and are connected by a hinge shaft, thereby being fixed in the movable frame (521). The ends of the first clamp (522) and the second clamp (523) are fitted with rubber sleeves (524) to prevent the first clamp (522) and the second clamp (523) from slipping when removing the plant.

8. The water use efficiency monitoring device coupling drought resistance and biomass of rain-fed spring maize as described in claim 1, characterized in that: One end of the surrounding frame (300) is also covered with a cover plate (600), and the cover plate (600) is also provided with a blower assembly (610). The cover plate (600) has a first air vent (620), and the blower assembly (610) blows air into the surrounding frame (300) through the first air vent (620).

9. The water use efficiency monitoring device coupling drought resistance and biomass of rain-fed spring maize as described in claim 8, characterized in that: The cover plate (600) is also provided with a wave plate (630), and an air duct is formed between the wave plate (630) and the cover plate (600). A second air vent (631) is opened at the trough of the wave plate (630). The second air vent (631) is oblique. The air in the air duct is blown into the surrounding frame (300) through the second air vent (631).

10. The water use efficiency monitoring device coupling drought resistance and biomass of rain-fed spring maize as described in claim 1, characterized in that: The surrounding frame (300) is also provided with a water delivery assembly (700). The water delivery assembly (700) includes a third driving member (710), a threaded rod (720), and a spray head (730). The third driving member (710) is fixed to one side of the surrounding frame (300). The threaded rod (720) is rotatably disposed inside the surrounding frame (300) and connected to the third driving member (710). The spray head (730) is threadedly connected to the threaded rod (720). When the threaded rod (720) rotates, it drives the spray head (730) to move. The spray head (730) has slots (731) on both sides. A water droplet forming member (740) is engaged in the slots (731). The water droplet forming member (740) has a water droplet hole (741) to condense the water mist sprayed by the spray head (730) into water droplets and fall down.

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