A high-flux drought resistance identification drip irrigation device for barley and its operation method

Abstract

The application provides a barley high-throughput drought resistance identification drip irrigation device, and belongs to the technical field of agricultural planting experiments. The device solves the problem that the existing drought resistance identification drip irrigation device is time-consuming and laborious and cannot simultaneously perform drought resistance experiments on crops under different irrigation amounts. When in use, multiple different varieties of barley used for experiments are planted in different seedling units in a seedling box, and then a water amount regulator in a gradient water amount drip tank device is used to irrigate each barley with the same water amount from top to bottom, and then the growth of the barley is observed to study the drought resistance of different varieties of barley under the same water amount and the same drought stress. Alternatively, an adjusting assembly is used to adjust the irrigation amount of the barley, so as to study the influence of different irrigation amounts on the drought resistance of the barley under the same variety and the same drought condition.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of agricultural planting experiments, and particularly relates to a high-throughput drought resistance identification drip irrigation device for barley and a method for operating the same. BACKGROUND

[0002] Barley is a main food, fuel and livestock feed for residents, and is also a raw material for beer, medicine and health product production. Drought has a very serious impact on barley, causing difficulty in late-stage nutrient accumulation of barley, and sometimes causing absolute loss, which is very serious. Therefore, drought resistance identification tests need to be conducted on barley to experiment on the growth and survival ability of barley in a drought environment, so as to guide farmers to select crop varieties suitable for local climate conditions, adopt reasonable irrigation and tillage measures, and improve the drought resistance and yield of barley.

[0003] A high-throughput corn seedling drought resistance identification drip irrigation device is disclosed in a patent with the publication number CN215898490U. A paper roll seedling system is placed in the seedling box, which is filled with organic soil, and corn seedlings are planted in the paper roll seedling system. The high-throughput corn seedling drought resistance identification drip irrigation device uses bottom drip irrigation instead of conventional top irrigation. Water is slowly released through the bottom drip irrigation belt, and the water distribution at the bottom of the seedling box is kept consistent by using the water absorption layer. Water is uniformly diffused to the soil in the entire seedling box through the capillary action of the soil. The amount of water for each irrigation can be accurately adjusted by the control valve on the water inlet pipe, and the amount of water is determined by adjusting the irrigation time. The device can be used for drought resistance tests with different water gradients. Water is transferred from the bottom water seepage layer to the top soil. A water gradient environment will be formed at the bottom of the soil for a long time due to the factor of water gravity, which is more similar to the actual planting environment in the field. The entire seedling box is covered with a rain shelter before it rains, and the rain shelter is retracted at other times to receive sunlight, which is beneficial to the reduction of soil moisture and achieves the purpose of rapid drought. The drought-resistant corn materials obtained through two rounds of drought treatment can be directly removed together with the seedling holes and transplanted to the natural environment in the field.

[0004] In the above technical solution, although the bottom drip irrigation method is used instead of the conventional top irrigation to slowly release water through the bottom drip irrigation belt, and the water distribution at the bottom of the seedling box is kept consistent by using the water absorption layer, in the above technical solution, if drought resistance tests with different water gradients are needed, multiple experiments are required, and the amount of water for each experiment is different in order to conduct drought resistance tests of corn under different water gradients. It is time-consuming and labor-intensive, and it is not possible to conduct drought resistance experiments on corn under different water gradients at the same time. SUMMARY

[0005] The present application aims to overcome the shortcomings of the prior art, and provides a high-throughput drought resistance identification drip irrigation device for barley, which solves the problems of time-consuming and laborious work and inability to simultaneously perform drought resistance experiments on crops under different irrigation amounts in the prior art.

[0006] The technical idea of the technical solution is that: a gradient water amount drip tank pipe is arranged at the upper end of the seedling box, and during use, a plurality of different varieties of barley used for experiments are planted in different seedling units in the seedling box, and then the water amount regulator in the gradient water amount drip tank device is used to irrigate each barley with the same water amount from top to bottom, and then the growth of the barley is observed to study the drought resistance of different varieties of barley under the same water amount and the same drought stress.

[0007] Alternatively, a plurality of the same variety of barley used for experiments are planted in different seedling units in the seedling box, and then the water amount regulator is used to drip the barley from top to bottom, and during the drip irrigation process, the irrigation amount of each barley can be adjusted by the adjusting assembly, so as to study the influence of different irrigation amounts on the drought resistance of barley under the same variety and the same drought condition.

[0008] Based on the above technical idea, the technical solution adopted by the present application is:

[0009] A high-throughput drought resistance identification drip irrigation device for barley, comprising a seedling box and a water tank, and a plurality of seedling units are arranged in the seedling box, and further comprising:

[0010] A gradient water amount drip tank device, comprising a ring-shaped pipe and a water amount regulator arranged below the ring-shaped pipe;

[0011] The ring-shaped pipe is connected with the water tank;

[0012] The water amount regulator is located between the ring-shaped pipe and the seedling box;

[0013] The water amount regulator comprises an adjusting assembly and a control assembly arranged at the end of the adjusting assembly; the control assembly is used to adjust the irrigation amount of each barley through the adjusting assembly.

[0014] In the above technical solution, as a preferred, the adjusting assembly comprises a fixing frame and a water amount adjusting pipe;

[0015] The fixing frame is arranged at the upper end of the seedling box and is in sliding connection with the water amount adjusting pipe;

[0016] A plurality of groups of first irrigation holes and second irrigation holes corresponding to the fish fry units are arranged on the water amount adjusting pipe; the diameters of the first irrigation holes of different groups are increased in turn, and the diameters of the second irrigation holes of different groups are the same.

[0017] Further limitation to the above technical solution, the control assembly comprises a threaded rod and a positioning part;

[0018] The threaded rod is connected with the fixing frame after passing through the water amount adjusting pipe.

[0019] The positioning part is arranged on the fixing frame and used for fixing the water amount adjusting pipe on the fixing frame after the water amount adjusting pipe is moved to the second water filling hole by the threaded rod.

[0020] Further limitation to the above technical solution, the threaded rod and the water amount adjusting pipe are respectively provided with a left idle ring and a right idle ring on both sides of the connection position.

[0021] Further limitation to the above technical solution, the positioning part comprises a position sensor, a lifting column and a control block.

[0022] The position sensor is arranged on the water amount adjusting pipe.

[0023] The lifting column and the control block are connected, and the control block is used for controlling the lifting column to descend into the linear clamping groove on the water amount adjusting pipe after receiving the laser emitted by the position sensor.

[0024] Further limitation to the above technical solution, the horizontal drip irrigation pipe is arranged at the bottom of the seedling box and connected with the water tank.

[0025] The application also provides an operation method of the barley high-throughput drought resistance identification drip irrigation device, comprising:

[0026] Step one: the barley is planted in different seedling units of the seedling box.

[0027] Step two: each barley in the seedling box is dripped by the gradient water amount drip tank device, so as to study the drought resistance of the barley under the same drought stress.

[0028] Further limitation to the above technical solution, preferably, the specific operation steps for studying the drought resistance of the barley under the same drought stress in step two are as follows:

[0029] The first water filling hole is adjusted to be directly below the water outlet hole of the annular pipe by the control assembly, and the same variety of barley in each seedling unit of the seedling box is drip irrigated with different water amounts.

[0030] Further limitation to the above technical solution, the specific operation steps for studying the drought resistance of the barley under the same drought stress in step two are as follows:

[0031] The second water filling hole is adjusted to be directly below the water outlet hole of the annular pipe by the control assembly, and the different varieties of barley in each seedling unit of the seedling box are dripped with the same water amount.

[0032] The beneficial effects of the present application are as follows:

[0033] Firstly, the present application designs a gradient water amount drip tank device and a seedling raising box matched with the same; wherein the gradient water amount drip tank device comprises a ring-shaped pipe and a water amount regulator arranged below the ring-shaped pipe.

[0034] In use, a plurality of different varieties of experimental barley can be planted in different seedling raising units in the seedling raising box, and then the water amount regulator is used to irrigate each barley from bottom to top, and in the drip irrigation process, the first irrigation hole on the water amount adjusting pipe in the adjusting assembly is directly below the water outlet of the ring-shaped pipe, so that the irrigation amount in each seedling raising unit is the same, and then the growth of the barley can be observed to study the influence of different varieties of barley on drought resistance under the same irrigation amount and the same drought stress.

[0035] Alternatively, a plurality of the same variety of experimental barley can be planted in different seedling raising units in the seedling raising box, and then the water amount regulator is used to drip irrigate each barley from top to bottom, and in the drip irrigation process, the second irrigation hole on the water amount adjusting pipe in the adjusting assembly is directly below the water outlet of the ring-shaped pipe, so that the irrigation amount in each seedling raising unit is different, and then the growth of the barley can be observed to study the influence of different irrigation amounts of barley on drought resistance under the same variety and the same drought stress.

[0036] Secondly, the present application can study the drought resistance of barley with different irrigation amounts at the same time through the water amount regulator, and the experimental results are more accurate.

[0037] Thirdly, the present application further provides a horizontal drip irrigation pipe, and the horizontal drip irrigation pipe is arranged at the bottom end of the seedling raising box, and in use, the drip irrigation mode from top to bottom can be switched to the drip irrigation mode from bottom to top to study the drought resistance of different varieties of barley under the same irrigation amount and the same drought stress.

[0038] Fourthly, the control assembly provided by the present application further comprises a positioning portion, and after the second irrigation hole is communicated with the water outlet 11, the water amount adjusting pipe and the fixing frame can be fixed through the positioning portion to prevent the water amount adjusting pipe from moving; in addition, when the operator rotates the threaded rod, the position of the second irrigation hole can be determined through the setting position of the position sensor.

[0039] Fifthly, the maximum number of rotations of the threaded rod corresponds to the position of the first irrigation hole, that is, after the operator rotates the threaded rod by the maximum number of rotations, the first irrigation hole is communicated with the water outlet, and the operation is simple and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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.

[0041] Figure 1 A schematic diagram of the structure of a high-throughput drought resistance identification drip irrigation device for barley and highland barley provided in an embodiment of the present invention;

[0042] Figure 2 for Figure 1 The front view of the device shown;

[0043] Figure 3 for Figure 1 Top view of the device shown;

[0044] Figure 4 for Figure 1 The water outlet in the device shown is a cross-sectional view;

[0045] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0046] Figure 6 A schematic diagram showing the connection between the water flow regulator and the seedling box;

[0047] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0048] Figure 8 for Figure 7 Enlarged view of point C in the middle;

[0049] Figure 9 for Figure 6 A cross-sectional view of the device shown;

[0050] Figure 10 for Figure 9 Enlarged view of point D in the middle;

[0051] Figure 11 This is a schematic diagram of the connection between the ring pipe and the water tank;

[0052] Figure 12 A schematic diagram of the structure of the adjustment component;

[0053] Figure 13 This is a schematic diagram of the fixed frame structure;

[0054] Figure 14 This is a structural schematic diagram of the fixing frame from another perspective;

[0055] Figure 15 Structure diagram of water volume adjusting pipe;

[0056] Figure 16 Structure diagram of water volume adjusting pipe from another perspective;

[0057] Figure 17 Structure diagram of Figure 16 Enlarged view of E in the middle;

[0058] Figure 18 Structure diagram of Figure 16 Bottom view of the device shown;

[0059] Figure 19 Structure diagram of Figure 1 Threaded rod in the device shown is a sectional view;

[0060] Figure 20 Structure diagram of sunshade;

[0061] Figure 21 Structure diagram of Figure 19 Structure diagram from another perspective.

[0062] 1, annular pipe; 11, water outlet;

[0063] 2, water volume regulator;

[0064] 21, adjusting assembly; 21a, fixing frame; 21b, water volume adjusting pipe; 21c, linear clamping slot; 21d, arc-shaped sliding slot;

[0065] 22, control assembly; 22a, threaded rod; 22b, positioning part; 22b-1, position sensor; 22b-2, lifting column; 22b-3, control block;

[0066] 23, left idle ring; 24, right idle ring;

[0067] 3, seedling box; 31, partition plate;

[0068] 4, water tank; 5, first water filling hole; 6, second water filling hole;

[0069] 7, horizontal drip irrigation pipe; 71, drainage port;

[0070] 8, barley; 9, water absorbing sponge; 10, reflective film; 12, sunshade; 13, sunlight lamp. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0072] In the description of this invention, it should be understood that the terms "length direction," "upper," "lower," "front," "rear," etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0073] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0074] Example 1

[0075] like Figures 1 to 20 As shown, this embodiment of the invention provides a high-throughput drip irrigation device for assessing the drought resistance of barley and highland barley, including a gradient water volume drip irrigation device, a seedling box 3, a water tank 4, a shade shed 12, and a solar lamp 13. The gradient water volume drip irrigation device is connected to the water tank 4. The water tank 4 is placed on a water tank frame so that water in the water tank 4 flows out under gravity and enters the gradient water volume drip irrigation device.

[0076] The sunlight lamp 13 is installed on the shade shed 12 and directly above the seedling box 3 to provide sunlight to the barley and barley 8 and to provide drought stress conditions to the barley and barley 8.

[0077] like Figure 4 As shown, the seedling box 3 has multiple equally spaced partitions 31 inside; the partitions 31 are used to divide the internal space of the seedling box 3 into multiple seedling units so that barley and highland barley can be planted in different seedling units. The partitions 31 are fixed to the seedling box 3. It should be noted that the embodiment of the present invention does not limit the fixing method of the partitions 31 and the seedling box 3; for example, the partitions 31 and the seedling box 3 are connected by rivets.

[0078] Furthermore, the number of partitions 31 is not limited in this embodiment of the invention. This embodiment of the invention is illustrated by using 5 partitions 31 to divide the interior of the seedling box 3 into six seedling units.

[0079] like Figure 1 As shown, the gradient water flow dripping tank device includes an annular pipe 1 and a water flow regulator 2 disposed below the annular pipe 1.

[0080] In use, the upper end of the annular pipe 1 is connected with the water tank 4, and a plurality of water outlets 11 are arranged on the annular pipe 1 at equal intervals; wherein the annular pipe 1 is arranged directly above the seedling raising box 3.

[0081] Specifically, the number of the water outlets 11 above each seedling raising unit of the seedling raising box 3 is the same. It should be noted that the number of the water outlets 11 above each seedling raising unit is not limited in the embodiment of the present application, for example, the embodiment of the present application is described by taking the example that two water outlets 11 are arranged above each seedling raising unit.

[0082] As shown in Figure 4 and 12 , the water amount regulator 2 is arranged between the annular pipe 1 and the seedling raising box 3, and the water amount regulator 2 comprises an adjusting assembly 21 and a control assembly 22 arranged at the end of the adjusting assembly 21.

[0083] The control assembly 22 is used to control the movement of the adjusting assembly 21, so as to adjust the irrigation amount of each seedling raising unit.

[0084] Specifically, as shown in Figure 6 and 7 , the adjusting assembly 21 comprises a fixed frame 21a and a water amount adjusting rod 21b. Specifically, the fixed frame 21a is arranged at the upper end of the seedling raising box 3 and is in sliding connection with the water amount adjusting rod 21b. As shown in Figure 5 , a plurality of through holes are arranged on the water amount adjusting rod 21b, which are used to be connected with the respective water outlets 11, so that the water flow is drip irrigated into the seedling raising unit after passing through the through holes of the fixed frame and the irrigation holes on the water amount adjusting rod 21b.

[0085] Specifically, as shown in Figure 13 and 14 , the fixed frame 21a is a structural schematic view, and an arc-shaped sliding groove 21d is arranged on the fixed frame 21a, which is used to be in sliding connection with the water amount adjusting rod 21b.

[0086] As shown in Figure 15 , it is a structural schematic view of the water amount adjusting rod 21b; the water amount adjusting rod 21b is a C-shaped crossbar, and irrigation holes are arranged on the crossbar.

[0087] The irrigation holes on the water amount adjusting rod 21b include two groups, as shown in Figure 18 , one group is the first irrigation hole 5, and the other group is the second irrigation hole 6.

[0088] The diameters of the first irrigation holes 5 in different groups increase in turn, and the diameters of the first irrigation holes 5 in the same group are the same, so as to drip irrigate different water amounts for each seedling raising box.

[0089] The second irrigation holes 6 in different groups have the same diameter, and the second irrigation holes 6 in the same group have the same diameter, so that the same amount of water is dripped into each seedling unit.

[0090] In actual use, the number of groups of the first irrigation holes 5 and the second irrigation holes 6 corresponds to the number of seedling units, and in use, a group of first irrigation holes 5 and a group of second irrigation holes 6 are respectively arranged above each seedling unit.

[0091] The control assembly 22 includes a threaded rod 22a and a positioning part 22b.

[0092] As shown in Figure 8 and 15 and shown, the threaded rod 22a is arranged at one end of the water amount adjusting rod 21b and is threadedly connected with the fixed frame 21a and the water amount adjusting rod 21b, respectively.

[0093] Specifically, as shown in Figure 17 and 20 , the threaded rod 22a is provided with a left idle ring 23 and a right idle ring 24 at both ends of the connection with the water amount adjusting rod 21b, wherein the outer diameters of the left idle ring 23 and the right idle ring 24 are greater than the outer diameter of the connecting hole of the water amount adjusting rod 21b, so that the threaded rod 22a is limitedly arranged on the water amount adjusting rod 21b; in use, under the action of the left idle ring 23 and the right idle ring 24, the threaded rod 22a idles in the connecting hole of the water amount adjusting rod 21b. A thread is arranged on the side of the threaded rod 22a connected with the fixed frame 21a.

[0094] In actual application, the operator manually rotates the threaded rod 22a, and the threaded rod 22a drives the water amount adjusting tube 21b to slide out of the arc-shaped sliding groove 21d of the fixed frame 21a under the limiting action of the left idle ring 23 and the right idle ring 24, until the irrigation holes arranged on the water amount adjusting tube 21b are connected with the water outlet 11, so that the water in the annular tube 1 flows out of the water outlet 11 into the irrigation holes on the water amount adjusting tube 21b, and then drips into the seedling unit through the irrigation holes.

[0095] As shown in Figure 8 , the positioning part 22b includes a position sensor 22b-1, a lifting column 22b-2, and a control block 22b-3.

[0096] The position sensor 22b-1 is arranged in the linear clamping groove 21c of the water amount adjusting tube 21b, and when the second irrigation hole 6 is aligned with the water outlet 11, the position sensor 22b-1 and the lifting column 22b-2 are located on the same straight line.

[0097] The lifting column 22b-2 and the control block 22b-3 are connected.

[0098] The control block 22b-3 is provided with a laser structure module.

[0099] During use, as the second water inlet 6 aligns with the outlet 11, the laser receiving module on the control block 22b-3 receives the laser emitted by the position sensor 22b-1. The laser structure module then sends information to the controller on the control block 22b-3. The controller controls the lifting column 22b-2 to descend into the linear slot 21c on the water flow regulating pipe 21b, thus fixing the water flow regulating pipe 21b onto the fixing frame 21a. This ensures that the second water inlet 6 is aligned with the outlet 11 and is secured, preventing the water flow regulating pipe 21b from moving. After use, the operator can use the reset button on the control block 22b-3 to raise the lifting column 22b-2 until it leaves the linear slot 21c, ready for the next experiment.

[0100] It should be noted that the control method of the controller in control block 22b-3 is existing technology, and this embodiment of the invention does not improve upon it.

[0101] The working principle of control component 22 is as follows:

[0102] In the initial state, the end of the water flow regulating pipe 21b is located at the innermost side of the fixing frame 21a. At this time, the outlet 11 is blocked by the pipe body of the water flow regulating pipe 21b, and the water flow cannot flow out from the outlet 11.

[0103] like Figure 17 As shown, the operator manually rotates the threaded rod 22a two turns, causing the threaded rod 22a to slide the water flow regulating pipe 21b outwards from the fixed frame 21a, thereby aligning the second watering hole 6 with the water outlet 11, so that the same amount of water can be dripped onto each seedling unit simultaneously. At the same time, the laser receiving module receives the laser emitted by the position sensor 22b-1, and then the laser structure module sends information to the controller of the control block 22b-3. The controller controls the lifting column 22b-2 to descend into the linear slot 21c on the water flow regulating pipe 21b. Then, the operator can use the reset button on the control block 22b-3 to raise the lifting column 22b-2, so that the operator can continue to manually rotate the threaded rod 22a two turns, causing the threaded rod 22a to slide the water flow regulating pipe 21b outwards from the fixed frame 21a, thereby aligning the first watering hole 5 with the water outlet 11, so that different amounts of water can be dripped onto each seedling unit simultaneously.

[0104] The gradient water flow dripping tank device provided in this embodiment of the invention can be used in two experimental modes:

[0105] Method 1

[0106] Step 1: Plant multiple identical varieties of barley 8 for the experiment in different seedling units within seedling box 3;

[0107] Step two: the operator manually rotates the threaded rod 22a for a total of 4 turns, so that the first irrigation hole 5 is in communication with the water outlet 11, and then the first irrigation hole 5 is used to irrigate the barley 8 in each seedling unit from bottom to top, because the inner diameters of the second irrigation holes 6 above the different seedling units are different, so the irrigation amount of each seedling unit is different, and then the growth of the barley 8 is observed to study the influence of different irrigation amounts on the drought resistance of the barley under the same drought stress and the same variety.

[0108] Method two,

[0109] Step one: a plurality of different varieties of barley 8 used for experiments are planted in different seedling units in the seedling box 3;

[0110] Step two: the operator manually rotates the threaded rod 22a for a total of 2 turns, so that the second irrigation hole 6 is in communication with the water outlet 11, and then the same amount of water is dripped from the second irrigation hole 6 to the soil in each seedling unit from top to bottom until the soil humidity of each seedling unit reaches the experimental requirement, and then the influence of different varieties on the drought resistance of the barley can be studied under the same irrigation amount and the same drought stress.

[0111] It should be noted that the embodiment of the present application is described with the total rotation number of the threaded rod 22a being 4, and the second irrigation hole 6 is aligned and communicated with the water outlet 11 when the threaded rod 22a is rotated for two turns, and the first irrigation hole 5 is aligned and communicated with the water outlet when the threaded rod 22a is rotated for four turns.

[0112] Embodiment 2

[0113] Based on embodiment 1, different from embodiment 1, the gradient water amount dripping device provided by the embodiment of the present application is further provided with a horizontal drip irrigation pipe 7.

[0114] As shown in Figure 4 , the horizontal drip irrigation pipe 7 is arranged on the inner bottom surface of the seedling box 3, and the outer side of the horizontal drip irrigation pipe 7 is wrapped with a water-absorbing sponge 9, so as to uniformly permeate the water in the horizontal drip irrigation pipe 7 to the soil in each seedling unit.

[0115] Specifically, one end of the horizontal drip irrigation pipe 7 penetrates through the seedling box 3, and a water outlet 71 is arranged on the outer side of the horizontal drip irrigation pipe 7, and a water outlet valve is arranged at the water outlet 71, which is used to drain the excess water out of the seedling box 3.

[0116] The horizontal drip irrigation pipe 7 is provided with a plurality of drip irrigation holes arranged at equal intervals.

[0117] Specifically, the horizontal drip irrigation pipe 7 and the water inlet of the annular pipe 1 are in communication and are connected with the water tank 4. In this way, when the drought resistance identification dripping experiment needs to be carried out through the annular pipe 1, the water inlet valve arranged on the annular pipe 1 is opened, and at the same time, the water inlet valve on the horizontal drip irrigation pipe 7 is closed.

[0118] When the drip irrigation from bottom to top is needed for the barley 8, the water inlet valve arranged on the annular pipe 1 is closed, and the water inlet valve on the horizontal drip irrigation pipe 7 is opened.

[0119] Example 3

[0120] Based on example 1, different from examples 1 and 2, as shown in Figure 21 and 22 As shown in the drawings, the sunshade 12 is provided with a reflective film 10, so as to improve the light intensity of the sunlight lamp 13, improve the drought stress intensity, and shorten the experimental period.

[0121] Application case one:

[0122] Taking the influence of different irrigation amounts on the drought resistance of the barley 8 under the same drought stress and the same variety of the barley as an example, the operation method of the high-throughput drought resistance identification drip irrigation device for the barley provided by the application is as follows:

[0123] Step one: six barley plants of the same variety are planted in different seedling units in the seedling box 3;

[0124] Step two: the sunlight lamp 13 is turned on to irradiate the barley 8, and the reflective film 10 is arranged around the sunshade 12;

[0125] Step three: the operator manually rotates the threaded rod 22a for four turns, so that the threaded rod 22a drives the water amount adjusting pipe 21b to move outwardly relative to the fixed frame 21a, until the first irrigation hole 5 on the water amount adjusting pipe 21b is in communication with the water outlet 11;

[0126] Step four: the water inlet valve arranged on the annular pipe 1 is opened, so that the water in the water tank 4 enters the first irrigation hole 5 through the water outlet 11 of the annular pipe 1, and then the water flows out of the first irrigation hole 5 and drips into the seedling unit with different water amounts;

[0127] Step five: the growth of the barley is observed to study the influence of different irrigation amounts on the drought resistance of the barley 8 under the same variety and the same drought stress.

[0128] Application case two:

[0129] Taking the influence of different varieties on the drought resistance of the barley under the same irrigation amount and the same drought stress as an example, the operation method of the high-throughput drought resistance identification drip irrigation device for the barley provided by the application is as follows:

[0130] Step one: six barley plants of different varieties are planted in different seedling units in the seedling box 3;

[0131] Step two: turn on the fluorescent lamp 13, and set the reflective film 10 around the sunshade 12;

[0132] Step three: the operator manually rotates the threaded rod 22a for two turns, so that the threaded rod 22a drives the water amount adjusting pipe 21b to move outwardly from the fixed frame 21a, until the second watering hole 6 on the water amount adjusting pipe 21b is in communication with the water outlet 11;

[0133] At this time, the control block 22b-3 receives the information sent by the laser receiving module, and controls the lifting column 22b-2 to descend until the lifting column 22b-2 enters the line-shaped slot 21c, so as to fix the water amount adjusting assembly 21b and the fixed frame 21a at the same time, and align the second watering hole 6 and the water outlet 11;

[0134] Step four: open the water inlet valve arranged on the annular pipe 1, so that the water in the water tank 4 enters the second watering hole 6 through the water outlet 11 of the annular pipe 1, and then the water flows out of the second watering hole 6 and drips on the seedling units with the same water amount;

[0135] Step five: after the soil humidity in each seedling unit is monitored by the humidity sensor arranged in each seedling unit to reach the required humidity of the experiment, the growth of the barley is observed to study the influence of different varieties on the drought resistance of the barley 8 under the same water amount and the same drought stress.

[0136] It should be noted that after the completion of each experiment, the soil and the wet sponge 9 in the seedling box 3 need to be replaced to avoid affecting the next experiment.

[0137] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

Claims

1. A high-throughput drip irrigation device for assessing drought resistance in barley and highland barley, comprising: The seedling tray (3) and water tank (4) are provided, wherein the seedling tray (3) is provided with multiple seedling units, and is characterized in that it further includes: The gradient water flow dripping device includes an annular pipe (1) and a water flow regulator (2) disposed below the annular pipe (1). The ring pipe (1) is connected to the water tank (4); The water flow regulator (2) is located between the ring pipe (1) and the seedling box (3); The water volume regulator (2) includes an adjustment component (21) and a control component (22) disposed at the end of the adjustment component (21); the control component (22) is used to adjust the irrigation volume of each barley and highland barley through the adjustment component (21); The regulating assembly (21) includes: a fixing frame (21a) and a water flow regulating pipe (21b); The fixing frame (21a) is set at the upper end of the seedling box (3) and is slidably connected to the water flow regulating pipe (21b); The water regulating pipe (21b) is provided with multiple sets of first irrigation holes (5) and second irrigation holes (6) corresponding to the seedling units. The number of sets of first irrigation holes (5) and second irrigation holes (6) corresponds to the number of seedling units. Each seedling unit is respectively connected to a set of first irrigation holes (5) and a set of second irrigation holes (6). The diameter of the first irrigation holes (5) in different sets increases sequentially, and the diameter of the second irrigation holes (6) in different sets is the same. The control assembly (22) includes a threaded rod (22a) and a positioning part (22b); The threaded rod (22a) passes through the water flow regulating pipe (21b) and is connected to the fixed bracket (21a); The positioning part (22b) is set on the fixing frame (21a) and is used to fix the water flow regulating pipe (21b) on the fixing frame (21a) after the threaded rod (22a) drives the water flow regulating pipe (21b) to move to the second water filling hole (6); It also includes a horizontal drip irrigation pipe (7); the horizontal drip irrigation pipe (7) is set at the bottom of the seedling box (3) and connected to the water tank (4).

2. The high-throughput drip irrigation device for assessing drought resistance in barley and highland barley according to claim 1, characterized in that, A left free-spinning ring (23) and a right free-spinning ring (24) are respectively provided on both sides of the connection between the threaded rod (22a) and the water flow regulating pipe (21b).

3. The high-throughput drip irrigation device for assessing drought resistance in barley and highland barley according to claim 2, characterized in that, The positioning unit (22b) includes a position sensor (22b-1), a lifting column (22b-2), and a control block (22b-3). The position sensor (22b-1) is installed on the water flow regulating pipe (21b); The lifting column (22b-2) and the control block (22b-3) are connected; the control block (22b-3) is used to control the lifting column (22b-2) to descend into the linear slot (21c) on the water flow regulating pipe (21b) after receiving the laser emitted by the position sensor (22b-1).

4. The operating method of the high-throughput drought resistance assessment drip irrigation device for barley and highland barley according to any one of claims 1-3, characterized in that, include: Step 1: Plant the barley and highland barley in different seedling units of the seedling box (3); Step 2: The barley and barley in the seedling box (3) are dripped with water using a gradient water dripping device to study the drought resistance of barley and barley under the same drought stress.

5. The operation method of the high-throughput drought resistance assessment drip irrigation device for barley and highland barley according to claim 4, characterized in that, In step two, the specific operational steps for studying the drought resistance of barley and highland barley under the same drought stress are as follows: By adjusting the first irrigation hole (5) to be directly below the outlet hole of the ring pipe (1) through the control component (22), different amounts of water are drip-irrigated to the barley and highland barley of the same variety in each seedling unit in the seedling box (3).

6. The operation method of the high-throughput drought resistance assessment drip irrigation device for barley and highland barley according to claim 5, characterized in that, The specific operational steps for studying the drought resistance of barley and highland barley under the same drought stress in step two are as follows: By adjusting the second irrigation hole (6) to be directly below the outlet hole of the ring pipe (1) through the control component (22), the same amount of water is applied to the drip tanks of different varieties of barley and highland barley in each seedling unit in the seedling box (3).

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