Device and method for testing water consumption capacity of plants
By designing a water storage tank and a buoyancy adjustment device, multiple plants can be tested simultaneously, solving the problems of long experimental cycles and inaccurate results for single plants in existing technologies, and achieving efficient and accurate testing of plant water consumption capacity.
Patent Information
- Application Number
- CN202511800033.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-02-24
AI Technical Summary
Existing technologies for testing plant water consumption capacity suffer from problems such as long single-plant experimental cycles, high costs, weak parallel experimental capabilities, inaccurate water consumption capacity test results, and difficulty in distinguishing between plant water consumption and soil water absorption.
A device was designed that includes a water storage tank, a grid cylinder, a bearing container, a buoyancy plate, a connecting mechanism, and buoyancy and water inlet adjustment rods. Through buoyancy adjustment and water inlet control, multiple plants can be tested simultaneously, water can be automatically replenished and adapted to different plant and soil characteristics, and water level changes can be recorded to calculate water consumption capacity.
It enables simultaneous experiments on multiple plants, significantly shortens experimental time, ensures consistency of experimental conditions, automatically replenishes water to avoid manual operation, accurately distinguishes the water consumption of plants and soil, and improves testing efficiency and accuracy.
Smart Images
Figure CN121558992A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of plant water consumption experiments, specifically relating to an apparatus and method for testing the water consumption capacity of plants. Background Technology
[0002] Plant water consumption capacity is a key indicator of vegetation ecological restoration, directly related to the survival ability of vegetation in specific environments and the stability of the ecosystem. In vegetation ecological restoration projects, accurately testing plant water consumption capacity is crucial for rationally planning water resource utilization, selecting suitable vegetation species, and optimizing irrigation strategies. Through experiments on plant water consumption capacity, researchers can gain a deeper understanding of the water requirements of different plants at different growth stages, thus providing important evidence for ensuring the healthy growth of plants throughout their entire life cycle.
[0003] In existing technologies, transpiration meters are commonly used for experiments. However, these experiments require testing on a single plant, with each experiment typically lasting 12-48 hours. For large-scale single-sample experiments, the experimental cycle is lengthy, and maintaining a consistent experimental environment is difficult. Simultaneous testing of multiple plants requires multiple devices, increasing costs. Other devices exist for testing plant water consumption capacity, but these also rely on single plants, resulting in the same limitations: weak parallel experimental capability and low efficiency per experiment. Furthermore, maintaining adequate moisture is crucial during the experiment. Traditional methods involve timed manual watering or gravity-fed irrigation at a fixed rate. Manual watering is cumbersome, and fixed-rate irrigation cannot adjust the water supply rate according to the different water consumption characteristics of each plant, leading to inaccurate results. Moreover, most existing devices do not effectively distinguish between plant water consumption and soil water absorption, often resulting in inaccurate results. Differentiating between the two requires additional control experiments for data correction, further increasing the experimental steps and overall time. Summary of the Invention
[0004] To solve the above-mentioned technical problems, the present invention provides an apparatus and method for testing the water consumption capacity of plants, thereby addressing the problems in the prior art. The technical solution adopted by the present invention is as follows: A device for testing the water consumption capacity of plants includes a water storage tank, a mesh cylinder, a support container, a buoyancy plate, a connecting mechanism, and a buoyancy and water inlet adjustment rod; The buoyancy disk is fixedly connected to a plurality of the carrying containers. The carrying containers are provided with an opening for placing the grid cylinder. The grid cylinder is used to place planting soil and a single plant. The bottom of the carrying containers is provided with a water inlet. The water storage tank contains water, the buoyancy plate and the bearing container float on the water surface, and the water enters the planting soil of the grid cylinder through the water inlet. The buoyancy and water inlet adjustment rod is connected to the connecting mechanism, and the connecting mechanism is connected to the water inlet hole. The buoyancy and water inlet adjustment rod is used to adjust the buoyancy of the buoyancy plate and the water inlet volume of the water inlet hole.
[0005] Furthermore, a measuring tube is connected to the side of the water storage tank, a float is installed inside the measuring tube, and corresponding scale lines are set on the measuring tube.
[0006] Furthermore, the top of the water storage tank is detachably connected to a housing, and a plant grow light is installed on the top of the housing.
[0007] Furthermore, an annular mesh is provided inside the opening of the carrying container, and an annular cavity is formed between the mesh and the inner wall of the opening. The annular cavity is filled with a side absorbent filler. A bottom absorbent filler is provided at the bottom of the opening and inside the mesh. The bottom absorbent filler contacts the bottom of the mesh cylinder, and the side absorbent filler surrounds and contacts the circumferential surface of the mesh cylinder. The water inlet is located below the bottom absorbent filler.
[0008] Furthermore, the side absorbent filler and the bottom absorbent filler are soil, absorbent cotton, or sponge.
[0009] Furthermore, an auxiliary buoyancy body is fixedly connected to the side of the carrying container away from the buoyancy disk.
[0010] Furthermore, the buoyancy disk is provided with a downward-facing groove, and a sealing plate is provided in the groove. The sealing plate is connected to the bottom of the buoyancy and water inlet adjustment rod, and the top of the buoyancy and water inlet adjustment rod can slide through the top of the buoyancy disk. The height of the sealing plate can be adjusted by adjusting the buoyancy and water inlet adjustment rod to adjust the buoyancy of the buoyancy disk.
[0011] Furthermore, the connecting mechanism includes a connecting shaft, a crossbar, a gear ring, and an adjusting turntable; The buoyancy and water inlet adjustment rod is a hollow structure. The buoyancy and water inlet adjustment rod is sleeved on the connecting shaft. The bottom of the connecting shaft passes through the sealing plate. The bottom side of the connecting shaft is fixedly connected to the inner side of the gear ring by the crossbar. The multiple carrying containers are rotatably connected to the adjusting turntable, the top of the adjusting turntable is attached to the bottom of the carrying container, and the outer side of the adjusting turntable is provided with teeth that mesh with the gear ring; multiple water inlets are provided and arranged around the rotation axis of the adjusting turntable, and the bottom of the adjusting turntable is provided with an adjusting hole that matches the water inlets; The buoyancy and water inlet adjustment rod is connected to the connecting shaft via a spline or protrusion. The buoyancy and water inlet adjustment rod is raised and lowered to adjust the buoyancy of the buoyancy plate. When the buoyancy and water inlet adjustment rod rotates, the gear ring rotates to drive the adjustment turntable to rotate, so that the adjustment hole and the water inlet hole are offset by different angles, thereby adjusting the water inlet volume.
[0012] Furthermore, a rotatable limiting ring is provided below the sealing plate and on the inner side of the water storage tank. The limiting ring is connected to the gear ring by bolts. A fixing ring is provided between the limiting ring and the gear ring, and the fixing ring is fixedly connected to the inner side of the water storage tank. The buoyancy and water inlet adjustment rod is fixed to the connecting shaft by locking bolts. The top of the buoyancy disk is fixedly connected to a scale, the buoyancy and water inlet adjustment rod passes through the scale, the buoyancy and water inlet adjustment rod is provided with height scale lines, and the scale is provided with angle scale lines.
[0013] A method for testing a plant's water consumption capacity includes the following steps: The steps involve dividing the planting soil into two parts, with one part evenly distributed in multiple grid tubes, and then transplanting individual plants into the grid tubes. The steps are as follows: add water to the storage tank to the initial water level, then place multiple grid cylinders into the carrying container, and place the carrying container and buoyancy plate on the water to suspend them. The steps involve adjusting the buoyancy of the buoyancy plate by raising and lowering the buoyancy and water inlet regulating rod, based on the differences in water consumption characteristics of different plants, so that the buoyancy plate and the carrying container are at a suitable suspension height, and adjusting the water inlet speed of the carrying container by rotating the buoyancy and water inlet regulating rod. Step 1: Attach the outer casing to the water tank and turn on the plant grow light; The steps are as follows: let the water stand for ~ hours, and record the drop in water level to obtain the total water consumption of plants and water absorption of soil; The steps are as follows: Take out each grid cylinder, and then evenly distribute the remaining planting soil (without plants) into the other grid cylinders. The steps are as follows: replenish water to the initial water level in the water storage tank, then place multiple grid cylinders without plants into the corresponding support containers, and finally place the support containers and buoyancy plates on the water to suspend them. Step 1: Let the water stand for ~ hours, and record the drop in water level as the amount of water absorbed by the soil. The steps are as follows: Calculate the water consumption capacity of a single plant using the following formula: in, This refers to the water consumption capacity of a single plant. It is the sum of water consumption by plants and water absorption by soil. This refers to soil water absorption. The number of grid cylinders 4 and the supporting containers 5, i.e., the number of plants. The experimental time.
[0014] The present invention has the following beneficial effects: it enables simultaneous experiments on multiple plants, eliminating the need for multiple individual experiments and significantly shortening the overall experimental time; automatic water replenishment avoids frequent manual watering; buoyancy adjustment adapts to different plant and soil weights, ensuring consistent experimental conditions; and the water pressure and soil immersion volume can be adjusted by the sinking height of the buoyancy plate to suit plants with different water consumption capacities; the design of the buoyancy and water inlet adjustment rods and connecting mechanisms allows the lifting and rotating of the buoyancy and water inlet adjustment rods to correspond to different functions. Attached Figure Description
[0015] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a schematic diagram of the supporting container and buoyancy plate; Figure 3 This is a schematic diagram of the container; Figure 4 This is a schematic diagram of the control group, which contains soil without plants. Figure 5 This is a schematic diagram showing the relationship between the gear ring and the adjusting turntable. Detailed Implementation
[0016] The following will be based on embodiments of the present invention. Figures 1-5 The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.
[0017] like Figures 1-3 A device for testing the water consumption capacity of plants includes a water storage tank 1, a mesh cylinder 4, a support container 5, a buoyancy plate 6, a connecting mechanism, and a buoyancy and water inlet adjustment rod 16. The buoyancy disk 6 is fixedly connected to a plurality of the carrying containers 5. The carrying containers 5 are provided with an opening for placing the grid cylinder 4. The grid cylinder 4 is used to place planting soil 13 and a single plant. The bottom of the carrying containers 5 is provided with a water inlet 501. The water storage tank 1 contains water 3, the buoyancy plate 6 and the bearing container 5 float on the water surface, and the water 3 enters the planting soil 13 of the grid cylinder 4 through the water inlet 501. The buoyancy and water inlet adjustment rod 16 is connected to the connecting mechanism, and the connecting mechanism is connected to the water inlet hole 501. The buoyancy and water inlet adjustment rod 16 is used to adjust the buoyancy of the buoyancy plate 6 and the water inlet volume of the water inlet hole 501.
[0018] Before the experiment, planting soil 13 and a single plant were placed into multiple mesh cylinders 4 and then placed into the openings of the carrying container 5. Water 3 was poured into the water tank 1 to the initial water level, and the buoyancy plate 6 and the carrying container 5 were placed in the water to suspend them. According to the water consumption characteristics of the plant, the buoyancy of the buoyancy plate 6 was adjusted by raising and lowering the buoyancy and water inlet adjustment rod 16 to make the carrying container 5 suspend at a suitable height. The water inlet volume was controlled by adjusting the opening and closing degree of the water inlet hole 501 by rotating the buoyancy and water inlet adjustment rod 16 through the connecting mechanism. After standing for a preset time, the water level change was recorded to obtain the common water consumption of the plant and the soil. Then, the soil without the plant was tested separately to obtain the soil water consumption. By subtracting the soil water consumption from the common water consumption and averaging the results, the water consumption capacity of a single plant could be obtained.
[0019] The water body 3 can be pure water or a plant culture solution containing certain nutrients, depending on the growth needs of different plants. The purpose of the adjustable buoyancy of the buoyancy plate 6 is to enable the supporting container 5 to adapt to the root growth needs of different plants and the water absorption characteristics of different soils. The buoyancy of the buoyancy plate 6 is used to regulate the water pressure and the amount of water soaked into the planting soil 13, ensuring that the water can penetrate into the planting soil at an appropriate rate. For example, for plants with well-developed root systems and strong water absorption capacity, such as trees, sunflowers, and sugarcane, the supporting container 5 can be allowed to sink slightly to increase water pressure, accelerate water penetration, and ensure that the plants have sufficient water.
[0020] This invention enables simultaneous experiments on multiple plants, eliminating the need for multiple individual experiments and significantly shortening the overall experimental time; automatic water replenishment avoids frequent manual watering; buoyancy adjustment adapts to different plant and soil weights, ensuring consistent experimental conditions; and the water pressure and soil immersion volume can be adjusted by the sinking height of the buoyancy plate 6 to accommodate plants with different water consumption capacities; the design of the buoyancy and water inlet adjustment rod 16 and the connecting mechanism allows the lifting and rotation of the buoyancy and water inlet adjustment rod 16 to correspond to different functions, enabling one component to adjust buoyancy and water inlet volume, making operation convenient and efficient.
[0021] It should be noted that plants at different growth stages consume different amounts of water. When conducting experiments, multiple plants at the same growth stage with similar root development and leaf growth should be selected.
[0022] Furthermore, a measuring tube 10 is connected to the side of the water storage tank 1, a float 11 is installed inside the measuring tube 10, and corresponding scale lines are provided on the measuring tube 10.
[0023] At the beginning of the experiment, the reading of the scale line corresponding to the float 11 in the measuring tube 10 was recorded; after the experiment, the reading of the scale line corresponding to the float 11 was recorded again; the reduction of water body 3 in the water storage tank 1 was calculated by the difference between the two readings, that is, the sum of the water consumption of multiple plants and the water absorption of the soil.
[0024] Furthermore, the top of the water storage tank 1 is detachably connected to the outer shell 2, and a plant grow light 12 is installed on the top of the outer shell 2. The plant grow light 12 is existing technology, simulating the natural light conditions for plant growth and avoiding differences in water consumption caused by uneven natural light. In addition, a heating device can be added as needed to regulate the temperature, and a ventilation device can be added to simulate natural wind.
[0025] Furthermore, an annular mesh 141 is provided inside the opening of the carrying container 5, and an annular cavity is formed between the mesh 141 and the inner wall of the opening. The annular cavity is filled with a side absorbent filler 14. A bottom absorbent filler 15 is provided at the bottom of the opening and inside the mesh 141. The bottom absorbent filler 15 contacts the bottom of the mesh cylinder 4, and the side absorbent filler 14 surrounds and contacts the circumferential surface of the mesh cylinder 4. The water inlet 501 is located below the bottom absorbent filler 15.
[0026] The bottom absorbent filler 15 and the side absorbent filler 14 rapidly absorb water through capillary action, creating a uniformly moist environment and ensuring that the planting soil inside the grid cylinder 4 is replenished with water from the bottom and sides. Both the partition net 141 and the grid cylinder 4 are grid structures.
[0027] Furthermore, the side absorbent filler 14 and the bottom absorbent filler 15 are soil, absorbent cotton, or sponge.
[0028] Furthermore, an auxiliary buoyancy body 9 is fixedly connected to the side of the carrying container 5 away from the buoyancy disk 6. The auxiliary buoyancy body 9 can be a hollow rubber body with a hollow interior, and scale lines can be set on the auxiliary buoyancy body 9 to reflect the sinking amount of the carrying container 5 and the buoyancy disk 6.
[0029] Furthermore, the buoyancy disk 6 is provided with a downward-facing groove, and a sealing plate 8 is provided in the groove. The sealing plate 8 is connected to the bottom of the buoyancy and water inlet adjustment rod 16. The top of the buoyancy and water inlet adjustment rod 16 can slide through the top of the buoyancy disk 6. The height of the sealing plate 8 can be adjusted by adjusting the buoyancy and water inlet adjustment rod 16 to adjust the buoyancy of the buoyancy disk 6.
[0030] A sealing ring can be installed on the outer ring of the sealing plate 8, and a threaded hole is provided on the buoyancy plate 6 for threaded connection of the buoyancy and water inlet adjustment rod 16. The change in the height of the sealing plate 8 changes the volume of water displaced by the buoyancy plate 6, thereby adjusting the overall buoyancy.
[0031] Furthermore, the connecting mechanism includes a connecting shaft 7, a crossbar 18, a gear ring 19, and an adjusting turntable 21; The buoyancy and water inlet adjustment rod 16 is a hollow structure. The buoyancy and water inlet adjustment rod 16 is sleeved on the connecting shaft 7. The bottom of the connecting shaft 7 passes through the sealing plate 8. The bottom side of the connecting shaft 7 is fixedly connected to the inner side of the gear ring 19 through the crossbar 18. Multiple carrying containers 5 are rotatably connected to the adjusting turntable 21. The top of the adjusting turntable 21 is attached to the bottom of the carrying container 5, and the outer side of the adjusting turntable 21 is provided with teeth that mesh with the gear ring 19. Multiple water inlet holes 501 are provided and arranged around the rotation axis of the adjusting turntable 21. The bottom of the adjusting turntable 21 is provided with an adjusting hole 211 that matches the water inlet hole 501. The buoyancy and water inlet adjustment rod 16 is connected to the connecting shaft 7 by a spline or a protrusion. The buoyancy and water inlet adjustment rod 16 is raised and lowered to adjust the buoyancy of the buoyancy disk 6. When the buoyancy and water inlet adjustment rod 16 rotates, it drives the adjustment turntable 21 to rotate through the gear ring 19, so that the adjustment hole 211 and the water inlet hole 501 are offset by different angles, so as to adjust the water inlet volume of the water inlet hole 501.
[0032] The buoyancy and water inlet adjustment rod 16 is engaged with the spline or protrusion of the connecting shaft 7 to realize the transmission of rotational force without affecting the lifting and lowering action of the buoyancy and water inlet adjustment rod 16. Sealing components such as sealing rings, sealing bushings, and sealing layers can also be provided between the buoyancy and water inlet adjustment rod 16 and the connecting shaft 7. The spline or protrusion of the buoyancy and water inlet adjustment rod 16 and the connecting shaft 7 are located above the sealing components.
[0033] like Figure 5 When adjusting the water inlet flow, rotating the buoyancy and water inlet adjustment rod 16 drives the connecting shaft 7 to rotate; the connecting shaft 7 drives the gear ring 19 to rotate via the crossbar 18, and the gear ring 19 meshes with the teeth of the adjustment turntable 21, driving the adjustment turntable 21 to rotate; the angle between the adjustment hole 211 of the adjustment turntable 21 and the water inlet hole 501 of the carrying container 5 changes, thereby changing the water flow cross-sectional area and realizing the adjustment of the water inlet flow. Figure 5 The dotted line in the diagram represents the water inlet 501. When adjusting buoyancy, only the adjusting rod is raised or lowered; the connecting shaft 7 and the gear ring 19 remain stationary, thus not affecting the water inlet volume.
[0034] Furthermore, a rotatable limiting ring 22 is connected below the sealing plate 8 and on the inner side of the water storage tank 1. The limiting ring 22 is connected to the gear ring 19 by bolts. A fixing ring 20 is provided between the limiting ring 22 and the gear ring 19. The fixing ring 20 is fixedly connected to the inner side of the water storage tank 1. The buoyancy and water inlet adjustment rod 16 is fixed relative to the connecting shaft 7 by locking bolts. The top of the buoyancy disk 6 is fixedly connected to the scale disk 17, the buoyancy and water inlet adjustment rod 16 passes through the scale disk 17, the buoyancy and water inlet adjustment rod 16 is provided with height scale lines, and the scale disk 17 is provided with angle scale lines.
[0035] The locking bolt passes through the side of the buoyancy and water inlet adjustment rod 16 and abuts against the connecting shaft 7, thereby fixing the relative position of the connecting shaft 7 and the buoyancy and water inlet adjustment rod 16 to fix the height of the buoyancy and water inlet adjustment rod 16. A groove can be provided on the side of the buoyancy and water inlet adjustment rod 16, and the end of the locking bolt is located in the groove. At this time, the structure of the locking bolt and the groove forms a circumferential limiting protrusion fit structure, which is used for the buoyancy and water inlet adjustment rod 16 to drive the connecting shaft 7 to rotate.
[0036] When adjusting buoyancy, loosen the locking bolt and raise or lower the buoyancy and water inlet adjustment rod 16. Adjust the height of the sealing plate 8 according to the relative position of the height scale line on the adjustment rod and the scale 17. When adjusting the water inlet, rotate the buoyancy and water inlet adjustment rod 16. The angle scale line on the scale 17 reflects the degree of misalignment between the adjustment hole 211 and the water inlet 501. Each angle scale on the scale 17 corresponds to a different degree of misalignment between the adjustment hole 211 and the water inlet 501. The water inlet volume at different degrees of misalignment between the adjustment hole 211 and the water inlet 501 can be pre-determined, and the different rotation angles of the connecting shaft 7 can be recorded to reflect the angle on the scale 17. The limiting retaining ring 21 and the fixing ring 20 limit the axial displacement of the gear ring 19, ensuring stable meshing, and also serve to support the gear ring 19 and the connecting shaft 7.
[0037] This invention also proposes a method for testing the water consumption capacity of plants, comprising the following steps: Step 1: Divide the planting soil 13 into two parts. One part is evenly distributed in multiple grid cylinders 4, and a single plant is transplanted into the grid cylinder 4. Step 2: Add water 3 to the water storage tank 1 to the initial water level, then place multiple mesh cylinders 4 into the carrying container 5 respectively, and place the carrying container 5 and the buoyancy plate 6 on the water 3 to suspend them. Step 3: Based on the differences in water consumption characteristics of different plants, the buoyancy of the buoyancy plate 6 is adjusted by raising and lowering the buoyancy and water inlet adjustment rod 16, so that the buoyancy plate 6 and the carrying container 5 are at a suitable suspension height, and the water inlet speed of the carrying container 5 is adjusted by rotating the buoyancy and water inlet adjustment rod 16. Step 4: Attach the outer casing 2 to the water tank 1 and turn on the plant grow light 12; Step 5: Let it stand for 24-48 hours and record the drop in water level of water body 3 to obtain the total water consumption of plants and water absorption of soil. Step 6: Take out each grid cylinder 4, and then evenly distribute the remaining planting soil 13 (without plants) into the other grid cylinders 4. Step 7, as follows Figure 4 Water is added to the water tank 1 to the initial water level, and then multiple grid cylinders 4 without plants are placed into the corresponding carrying container 5. Finally, the carrying container 5 and the buoyancy plate 6 are placed on the water body 3 and suspended. Step 8: Let it stand for 24-48 hours and record the drop in water level of water body 3 as the amount of water absorbed by the soil. Step 9: Calculate the water consumption capacity of a single plant using the following formula: in, The water consumption capacity of a single plant is expressed in ml / h, or milliliters per hour. It is the sum of water consumption by plants and water absorption by soil. This refers to soil water absorption. The number of grid cylinders 4 and the supporting containers 5, i.e., the number of plants. The experimental time.
[0038] This invention uses a controlled experiment method to eliminate the influence of soil water absorption by measuring the difference in water level drop between the plant group and the non-plant group, thereby obtaining the actual water consumption of the plant. The average value of the water consumption of multiple plant groups is taken to obtain the water consumption capacity value of a single plant.
[0039] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, alterations, substitutions, or variations made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.
Claims
1. A device for testing the water consumption capacity of plants, characterized in that, It includes a water storage tank (1), a grid cylinder (4), a bearing container (5), a buoyancy plate (6), a connecting mechanism, and a buoyancy and water inlet adjustment rod (16). The buoyancy plate (6) is fixedly connected to a plurality of the carrying containers (5). The carrying containers (5) are provided with an opening for placing the grid cylinder (4). The grid cylinder (4) is used to set planting soil (13) and a single plant. The bottom of the carrying containers (5) is provided with a water inlet (501). The water storage tank (1) contains water (3), the buoyancy plate (6) and the bearing container (5) float on the water surface, and the water (3) enters the planting soil (13) of the grid cylinder (4) through the water inlet (501); The buoyancy and water inlet adjustment rod (16) is connected to the connecting mechanism, and the connecting mechanism is connected to the water inlet (501). The buoyancy and water inlet adjustment rod (16) is used to adjust the buoyancy of the buoyancy plate (6) and the water inlet (501).
2. The device for testing the water consumption capacity of plants according to claim 1, characterized in that, The side of the water storage tank (1) is connected to a measuring tube (10), a float (11) is installed inside the measuring tube (10), and a corresponding scale line is installed on the measuring tube (10).
3. The device for testing the water consumption capacity of plants according to claim 1, characterized in that, The top of the water storage tank (1) is detachably connected to the outer shell (2), and the top of the outer shell (2) is equipped with a plant supplement light (12).
4. The device for testing the water consumption capacity of plants according to claim 1, characterized in that, The container (5) has an annular mesh (141) inside its opening, and an annular chamber is formed between the mesh (141) and the inner wall of the opening. The annular chamber is filled with a side absorbent filler (14). A bottom absorbent filler (15) is provided at the bottom of the opening and inside the mesh (141). The bottom absorbent filler (15) contacts the bottom of the mesh cylinder (4), and the side absorbent filler (14) surrounds and contacts the circumferential surface of the mesh cylinder (4). The water inlet (501) is located below the bottom absorbent filler (15).
5. The device for testing the water consumption capacity of plants according to claim 4, characterized in that, The side absorbent filler (14) and the bottom absorbent filler (15) are soil, absorbent cotton or sponge.
6. The device for testing the water consumption capacity of plants according to claim 1, characterized in that, The auxiliary buoyancy body (9) is fixedly connected to the side of the carrying container (5) away from the buoyancy disk (6).
7. The device for testing the water consumption capacity of plants according to claim 1, characterized in that, The buoyancy disk (6) is provided with a groove with the opening facing downward. A sealing plate (8) is provided in the groove. The sealing plate (8) is connected to the bottom of the buoyancy and water inlet adjustment rod (16). The top of the buoyancy and water inlet adjustment rod (16) can slide through the top of the buoyancy disk (6). The height of the sealing plate (8) can be adjusted by adjusting the buoyancy and water inlet adjustment rod (16) to adjust the buoyancy of the buoyancy disk (6).
8. The apparatus for testing the water consumption capacity of plants according to claim 7, characterized in that, The connecting mechanism includes a connecting shaft (7), a crossbar (18), a gear ring (19), and an adjusting turntable (21). The buoyancy and water inlet adjustment rod (16) is a hollow structure. The buoyancy and water inlet adjustment rod (16) is sleeved on the connecting shaft (7). The bottom of the connecting shaft (7) passes through the sealing plate (8). The bottom side of the connecting shaft (7) is fixedly connected to the inner side of the gear ring (19) through the crossbar (18). Multiple carrier containers (5) are rotatably connected to the adjustment turntable (21). The top of the adjustment turntable (21) is attached to the bottom of the carrier container (5). The outer side of the adjustment turntable (21) is provided with teeth that mesh with the gear ring (19). Multiple water inlets (501) are provided and arranged around the rotation axis of the adjustment turntable (21). The bottom of the adjustment turntable (21) is provided with an adjustment hole (211) that matches the water inlet (501). The buoyancy and water inlet adjustment rod (16) is connected to the connecting shaft (7) by a spline or a protrusion. The buoyancy and water inlet adjustment rod (16) is raised and lowered to adjust the buoyancy of the buoyancy disk (6). When the buoyancy and water inlet adjustment rod (16) rotates, the gear ring (19) rotates to drive the adjustment turntable (21) to rotate, so that the adjustment hole (211) and the water inlet hole (501) are offset by different angles, so as to adjust the water inlet volume of the water inlet hole (501).
9. The apparatus for testing the water consumption capacity of plants according to claim 8, characterized in that, Below the sealing plate (8), a rotatable connecting limiting ring (22) is located on the inner side of the water storage tank (1). The limiting ring (22) is connected to the gear ring (19) by bolts. A fixing ring (20) is provided between the limiting ring (22) and the gear ring (19). The fixing ring (20) is fixedly connected to the inner side of the water storage tank (1). The buoyancy and water inlet adjustment rod (16) is fixed relative to the connecting shaft (7) by locking bolts. The top of the buoyancy disk (6) is fixedly connected to the dial (17), the buoyancy and water inlet adjustment rod (16) passes through the dial (17), the buoyancy and water inlet adjustment rod (16) is provided with height scale lines, and the dial (17) is provided with angle scale lines.
10. A method for testing the water consumption capacity of plants, applied to the apparatus for testing the water consumption capacity of plants as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Divide the planting soil (13) into two parts. One part is evenly distributed in multiple grid cylinders (4), and a single plant is transplanted into the grid cylinder (4). Step 2: Add water (3) to the water storage tank (1) to the initial water level, and then place multiple grid cylinders (4) into the carrying container (5) respectively, and place the carrying container (5) and the buoyancy plate (6) on the water (3) to suspend them; Step 3: Based on the differences in water consumption characteristics of different plants, the buoyancy of the buoyancy disk (6) is adjusted by raising and lowering the buoyancy and water inlet adjustment rod (16) so that the buoyancy disk (6) and the carrying container (5) are at a suitable suspension height, and the water inlet speed of the carrying container (5) is adjusted by rotating the buoyancy and water inlet adjustment rod (16). Step 4: Attach the outer shell (2) to the water tank (1) and turn on the plant grow light (12). Step 5: Let stand for 24-48 hours and record the drop in water level of water body (3) to obtain the total water consumption of plants and water absorption of soil. Step 6: Take out each grid cylinder (4), and then evenly distribute the remaining planting soil (13) without plants into the other grid cylinders (4); Step 7: Add water (3) to the water tank (1) to the initial water level, then place multiple grid cylinders (4) without plants into the corresponding carrier container (5), and finally place the carrier container (5) and the buoyancy plate (6) on the water body (3) to suspend them. Step 8: Let stand for 24-48 hours and record the drop in water level of water body (3) as the amount of water absorbed by the soil. Step 9: Calculate the water consumption capacity of a single plant using the following formula: in, This refers to the water consumption capacity of a single plant. It is the sum of water consumption by plants and water absorption by soil. This refers to soil water absorption. The number of grid cylinders 4 and the supporting containers 5, i.e., the number of plants. The experimental time.