CN107683762B - Liquid membrane water culture device for evaluating stress resistance of oranges - Google Patents

Abstract

The invention relates to the technical field of modern plant cultivation, and discloses a liquid film water culture device for evaluating the stress resistance of oranges, which comprises a shed body, wherein a plurality of groups of water culture platforms are arranged in the shed body, the groups of water culture platforms are distributed in a rectangular array shape, passages are formed between adjacent groups of water culture platforms, each group of water culture platform comprises a circulation mechanism and at least two planting beds, the circulation mechanism comprises a nutrient solution box, a liquid conveying pipe and a return pipe, the planting beds respectively comprise a head part and a tail part, the head parts are higher than the tail parts, the tail parts and the tail parts of the planting beds in the same group of water culture platforms are connected, the circulation mechanism is positioned between the connected tail parts, the planting beds are respectively in a groove shape, groove covers are arranged on the planting beds, planting holes are arranged on the groove covers, liquid inlet holes are respectively arranged at the upper ends of the head parts, the liquid inlet holes are respectively connected with the liquid conveying pipe, the lower ends of the tail parts are respectively provided with liquid outlet holes, and the liquid outlet holes are respectively connected with the return pipe. According to the invention, long-term large-scale orange stress resistance research can be realized, and aerobic respiration of orange roots is promoted.

Description

Liquid membrane water culture device for evaluating stress resistance of oranges

Technical Field

The invention relates to the technical field of modern plant cultivation, in particular to a liquid membrane water culture device for evaluating the stress resistance of oranges.

Background

Citrus is a perennial woody plant, and the current hydroponic techniques used on citrus are often performed using a shaker. If any problem causing the shaking table to be inoperative is encountered, the citrus root system is in an anaerobic respiration state, and if the problem is long, the large-scale seedling death condition can occur, and the early-stage work can be destroyed once, so that the stress resistance evaluation work of the citrus rootstock is seriously influenced. In addition, when the shaking table is used for water culture, the capacity of the shaking table is generally small, so that the number of plants which can be cultured is limited, the treatment time is limited, the large-scale and long-time development of stress resistance evaluation work is limited, and the stress resistance evaluation efficiency and the accuracy of an evaluation result are seriously influenced.

Disclosure of Invention

The invention aims to provide a liquid membrane water culture device for evaluating the stress resistance of oranges, so as to realize long-term large-scale research on the stress resistance of the oranges and promote aerobic respiration of the roots of the oranges.

In order to achieve the purpose, the basic technical scheme of the invention is as follows: a liquid film hydroponics device for evaluating oranges and tangerines stress resistance, including the canopy body, internal several groups of water planting platforms that are equipped with of canopy, it distributes to be rectangular array form between the several groups of water planting platforms, be the passageway between the adjacent group water planting platform, every group water planting platform all includes circulation mechanism and two at least kind of planting beds, circulation mechanism includes the nutrient solution case, transfer line and back flow, kind of planting bed all has head and afterbody, and the head is higher than the afterbody, the afterbody and the afterbody of the kind of planting bed in the same group water planting platform meet, and circulation mechanism is located between the afterbody that meets, kind of planting bed all is the flute profile and is equipped with the capping on kind of planting bed, be equipped with planting hole on the capping, the upper end of head all is equipped with the feed liquor hole, the feed liquor hole all is connected with the transfer line, the lower extreme of afterbody all is equipped with out the liquid hole, it all is connected with the back flow to go out the liquid hole.

The principle and the beneficial effects of the scheme are as follows: during practical application, compare traditional shaking table and cultivate the mode, adopt the big-arch shelter to carry out the long-term batch planting experiment of oranges and tangerines, improve research efficiency. The distribution form that array water planting platform adopted the rectangular array form establishes to the passageway between the adjacent group water planting platform, so, the passageway will be different to organize and keep apart between the water planting platform, makes it form solitary research experiment group, and the accuracy of experiment is improved to the independent of the multiunit experiment of being convenient for going on. Every group water planting platform has all contained two at least kind of planting beds, can be used for the contrast research of two sets of experiments of the same kind at least, is convenient for to the control of cultivating the condition single variable, guarantees the experiment effect. The crossing is criss-cross, and the walking of experimenters and the research and observation of each group of experiments can be facilitated.

All be equipped with circulation mechanism in every group water planting platform, when circulation mechanism during operation, can supply with the nutrient solution simultaneously to two kind plant beds in the same group water planting platform, the nutrient solution is by the motion of nutrient solution case to the head of planting bed and flow in to planting bed, finally flows to the afterbody of planting bed and flows back to in the nutrient solution case along the diapire of planting bed slope, realizes the two-way circulation of nutrient solution, improves the rate of utilization of nutrient solution, reduces the circulation power of using simultaneously, reduces research cost. Two kind plant beds in the same group's water planting platform are the slope form that the head is high, the afterbody is low to the afterbody meets, thereby forms the V type, and the nutrient solution all flows towards the bottom of V type and assembles, and circulation mechanism is located between the afterbody that meets, can be convenient for to two kind plant beds in the two-way circulation of nutrient solution in the while, guarantee the uniformity of nutrition condition in two sets of oranges and tangerines, reduce experimental error. Meanwhile, the nutrient solution continuously and circularly flows under the power of the circulating mechanism, and continuously carries a large amount of oxygen into the planting bed, so that aerobic respiration of the citrus root system is promoted, and normal growth of plants is ensured.

Preferably, as an improvement, the circulating mechanism further comprises a circulating pump, the circulating pump is located in the nutrient solution tank, a liquid supplementing pipe is arranged on the nutrient solution tank, a control valve is installed on the liquid supplementing pipe, a torsion spring is installed on the control valve, a lifting rope is wound on the control valve and connected with a floating ball, and the floating ball is arranged in the nutrient solution tank. The circulating pump is used as a power device for circulating the nutrient solution to enhance the circulating effect. When the nutrient solution liquid level in the nutrient solution box changes, the height of the floating ball changes along with the change, so that the control valve is pulled to rotate, the liquid supplementing pipe is opened to supplement nutrient solution in the nutrient solution box, and the sufficiency of the nutrient solution is ensured. The torsion spring is used for controlling the resetting of the valve so as to close the liquid supplementing pipe in time after liquid supplementing is finished.

Preferably, as an improvement, the inboard of planting bed head portion rotates and is connected with the pivot, fixedly connected with waterwheel in the pivot, the waterwheel includes the several guide plate that evenly distributed in proper order around the circular cross-section of pivot, the guide plate all is the comb tooth form, it is connected with planting section of thick bamboo to rotate in the planting hole, planting section of thick bamboo lower extreme passes planting hole and stretches into to planting bed, be equipped with the tooth on the outer wall of planting section of thick bamboo lower extreme, it is connected with the master gear to rotate on the planting bed in the planting section of thick bamboo outside, mesh between master gear and the tooth, be connected with first belt between master gear and the pivot. When the head to the kind of plant bed is taken out to the nutrient solution in the nutrient solution case to circulation mechanism, the nutrient solution flows to the waterwheel by the inlet port, the effort of liquid stream will promote the waterwheel rotation, because the guide plate on the waterwheel is comb-tooth form, the nutrient solution will flow and shunt along with a plurality of broach positions of guide plate, thereby divide into several strands with the nutrient solution that originally is a liquid stream, increase the area that the nutrient solution flows, do benefit to the comprehensive contact of oranges and tangerines root to the nutrient solution, promote the comprehensive absorption of root to nutrition. Simultaneously the waterwheel rotates and drives the air in the planting bed to flow fast, aerobic respiration of the root of the citrus is facilitated, necrosis of the root of the citrus is prevented, and the nutrient solution is stirred in the rotating process of the waterwheel, so that nutrient substances in the nutrient solution are uniformly distributed, and comprehensive absorption of the citrus is facilitated.

The waterwheel is rotated, the rotating shaft is driven to rotate, the first belt transmits the rotating power of the rotating shaft to the main gear, the main gear rotates to push teeth on the planting cylinder, so that the planting cylinder rotates, all parts of the citrus in the planting cylinder can uniformly receive illumination in the rotating process, multidirectional growth of the citrus is promoted, and a plurality of roots can be fully contacted with nutrient solution when the citrus rotates, and comprehensive absorption of the roots is promoted.

Preferably, as an improvement, the planting hole has a plurality of that are the rectangular array form and distribute, and each row of rectangular array extends to the afterbody direction by the head of planting the bed, and every two adjacent planting section of thick bamboo are a small group in same row, are equipped with the push rod between two planting sections in same small group, and the both ends of push rod are fixed connection respectively on the lower extreme terminal surface of planting a section of thick bamboo in both sides, and the both ends of push rod all are equipped with the blade, are connected with the second belt between the planting section of thick bamboo between the adjacent small group. When the planting cylinder close to the rotating shaft is driven by the rotating shaft to rotate by the first belt, the planting cylinder pushes another planting cylinder in the same group to rotate through the push rod, so that the oranges in the another planting cylinder can be uniformly illuminated and fully absorb nutrition. And when the other planting cylinder rotates, the second belt drives the planting cylinders in the adjacent group to rotate, so that the two planting cylinders in the adjacent group also move along with the rotation. The push rod is at the rotatory in-process of planting a section of thick bamboo, and the lower extreme of the planting section of thick bamboo of both sides is constantly scraped at the both ends that are equipped with the blade, cuts off the unnecessary part in oranges and tangerines root, prevents oranges and tangerines root overlength and hinders the flow of nutrient solution in planting the bed, guarantees that the oranges and tangerines in each planting section of thick bamboo all can absorb the nutrition.

Preferably, as an improvement, underground below the ground of canopy body has buried the ground pipe underground, and the upper portion of canopy body is equipped with the rack, and the rack includes the several stay tubes, and stay tube and ground pipe all are latticed distribution, and the lattice point position of the net that the stay tube formed corresponds with the lattice point position one-to-one of the net that ground pipe formed and is connected with the breather pipe between the two, and the breather pipe upwards passes the canopy body by the below ground and is connected with the stay tube. The breather pipe is used for supporting rack and the canopy body on the one hand, guarantee the stability of canopy body structure, on the other hand will manage air drainage in the pipe to the support intraductal, because the trench has the characteristics warm in winter and cool in summer, when the air current flows in the pipe, can adjust the temperature, air current after adjusting the temperature is in through breather pipe upflow to support intraductal, thereby carry out the heat exchange at a plurality of positions to the air in the canopy body, adjust indoor temperature, make the growth of the suitable oranges and tangerines of indoor temperature, promote the batch research of oranges and tangerines.

Preferably, as an improvement, the water culture platforms correspond to the grids formed by the ground pipes one by one, and the water culture platforms are all positioned in the corresponding grids. Because the net lattice point position of breather pipe with the stay tube is connected with the net lattice point position of managing, so the breather pipe is rectangular array form and distributes, arranges the net in with the water planting platform, arrange the water planting platform in the rectangle frame that the breather pipe formed promptly for the breather pipe surrounds in the outside of water planting platform, can strengthen the temperature regulation effect to water planting platform position department, promotes the equilibrium of this position department temperature.

Preferably, as an improvement, the below of planting the bed is equipped with the support frame, and the support frame includes the several connecting pipes of cutting, and the connecting pipe is connected with out the liquid hole, is connected with the pipe that adjusts the temperature on the connecting pipe, and the pipe that adjusts the temperature is kept away from the one end of connecting pipe and is run through the pipe and communicate with the back flow. So, the nutrient solution will flow back to the nutrient solution case through planting bed, play liquid hole, connecting pipe, temperature adjusting pipe, back flow in proper order, because the nutrient solution is when flowing through planting bed, and the illumination influences, the temperature changes, when the nutrient solution is when the temperature adjusting pipe of flowing through at the backward flow in-process, the temperature in the pipe can be adjusted the temperature in the temperature adjusting pipe to guarantee the equilibrium of the nutrient solution temperature that flows into in the planting bed, be favorable to the growth of oranges and tangerines.

Preferably, as an improvement, the capping can be dismantled and connect on planting the bed, is equipped with the sieve in the planting bed. The sieve can collect the root residue under the bisection, prevents that it from blockking up feed liquor hole and play liquid hole. The tank cover is opened, and residues accumulated on the sieve plate can be cleaned in time.

Drawings

FIG. 1 is a schematic structural diagram of a canopy in an embodiment of the present invention.

FIG. 2 is a top view of the tube in the embodiment of the present invention.

FIG. 3 is a bottom view of the canopy frame of the embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a water culture platform in an embodiment of the invention.

Fig. 5 is a top view of a planting bed in an embodiment of the invention.

Fig. 6 is an internal structure view of the planting bed in fig. 5.

Fig. 7 is a schematic view of the connection relationship between the planting cylinders in the embodiment of the invention.

Fig. 8 is a schematic structural diagram of a circulation mechanism in an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the greenhouse comprises a greenhouse body 1, a greenhouse frame 2, a ground pipe 3, a support pipe 4, a vent pipe 5, a water culture platform 6, a passageway 7, a circulating mechanism 8, a nutrient solution tank 9, a liquid conveying pipe 10, a return pipe 11, a circulating pump 12, a liquid supplementing pipe 13, a control valve 14, a floating ball 15, a planting bed 16, a head 17, a tail 18, a tank cover 19, planting holes 20, a rotating shaft 21, a waterwheel 22, a guide plate 23, a planting cylinder 24, a main gear 25, a push rod 26, a blade 27, a second belt 28, a support frame 29, a connecting pipe 30, a temperature adjusting pipe 31, a sieve plate 32, a liquid outlet 33 and a liquid inlet 34.

Examples as shown in fig. 1 and 2, a liquid membrane hydroponic apparatus for evaluating the stress resistance of citrus comprises a greenhouse 1, wherein a grid-like distribution of ground pipes 3 is embedded under the greenhouse 1, and the ground pipes 3 are communicated with the outside of the greenhouse 1. The grid-shaped shed frame 2 shown in figure 3 is arranged at the upper part of the shed body 1, the shed frame 2 is formed by welding a plurality of supporting pipes 4, and the supporting pipes 4 are mutually communicated. Be connected with vertical breather pipe 5 between 4 welded positions of stay tube and the ground pipe 3, breather pipe 5 will stay tube 4 and ground pipe 3 intercommunication, so, the canopy body 1 is inside to be separated by breather pipe 5 and to form a plurality of independent spaces. Be equipped with array water planting platform 6 in the canopy body 1, be the rectangular array form between the array water planting platform 6 and distribute, and water planting platform 6 is located the independent space of difference respectively, is passageway 7 between the adjacent group water planting platform 6.

Each group of water culture platforms 6 are provided with a circulation mechanism 8, each circulation mechanism 8 comprises a nutrient solution box 9, a liquid conveying pipe 10 and a return pipe 11, the structure of each nutrient solution box 9 is as shown in fig. 8, and comprises a circulation pump 12, the circulation pump 12 is connected with the liquid conveying pipe 10 and the return pipe 11, the right part of each nutrient solution box 9 is provided with a liquid supplementing pipe 13, each liquid supplementing pipe 13 is connected with a nutrient solution storage source, a control valve 14 is installed on each liquid supplementing pipe 13, a torsion spring is installed on each control valve 14, a lifting rope is wound on each control valve 14, a floating ball 15 is bonded at the lower end of the lifting rope, and the floating ball 15 is arranged in each nutrient solution box 9.

As shown in fig. 4, 5 and 6, each group of water culture platform 6 comprises two planting beds 16, each planting bed 16 is provided with a head part 17 and a tail part 18, the head part 17 is higher than the tail part 18, the tail parts 18 and the tail parts 18 of the planting beds 16 in the same group of water culture platforms 6 are connected, the two planting beds 16 form a V shape, the circulating mechanism 8 is positioned between the connected tail parts 18, the planting beds 16 are all groove-shaped, the planting beds 16 are detachably connected with groove covers 19 through screws, the groove covers 19 are provided with planting holes 20 distributed according to a rectangular array shape, the upper ends of the head parts 17 are provided with liquid inlet holes 34, the liquid inlet holes 34 are all in threaded connection with the infusion tube 10, and the lower ends of the tail parts 18 are provided with liquid outlet holes 33. As shown in fig. 6 and 7, the inner side of the head 17 of the planting bed 16 is rotatably connected with a rotating shaft 21 through a bearing, a waterwheel 22 is welded on the rotating shaft 21, the waterwheel 22 comprises a plurality of guide plates 23 which are sequentially and uniformly distributed around the circular section of the rotating shaft 21, and the guide plates 23 are all in a comb shape. Planting cylinders 24 are clamped in the planting holes 20, and the planting cylinders 24 can rotate in the planting holes 20. The lower end of the planting cylinder 24 penetrates through the planting hole 20 and extends into the planting bed 16, teeth are arranged on the outer wall of the lower end of the planting cylinder 24 to form a driven gear, a main gear 25 is rotatably connected to the planting bed 16 on the outer side of the planting cylinder 24 through a gear shaft, the main gear 25 is meshed with the teeth, and a first belt is connected between the main gear 25 and the rotating shaft 21. The planting cylinders 24 are arranged in rows from left to right, every two adjacent planting cylinders 24 in each row are in one group, as shown in fig. 7, a push rod 26 is arranged between the two planting cylinders 24 in the same group, the left end and the right end of the push rod 26 are fixedly connected to the end faces of the lower ends of the planting cylinders 24 on the two sides respectively through positioning pins, blades 27 are arranged at the two ends of the push rod 26, and the planting cylinders 24 between the adjacent groups are connected through a second belt 28. As shown in fig. 6, a sieve plate 32 is also arranged below the planting pot 24 in the planting bed 16.

As shown in fig. 4, a support frame 29 is arranged below the planting bed 16, a plurality of connecting pipes 30 are arranged on the support frame 29, the connecting pipes 30 are in threaded connection with liquid outlet holes 33, the lower ends of the connecting pipes 30 are connected with bent temperature adjusting pipes 31, and one ends of the temperature adjusting pipes 31 far away from the connecting pipes 30 penetrate through the pipe 3 and are communicated with the return pipe 11.

In this embodiment, during practical application, adopt the big-arch shelter experiment, compare the shaking table formula, do benefit to the normal clear of extensive experiment. Manage 3 on ground laying to set up stay tube 4 on canopy body 1 upper portion, stay tube 4 communicates with each other with managing 3, utilizes underground temperature's difference, carries out indoor temperature's automatically regulated, keeps indoor temperature's equilibrium, and the experiment of being convenient for is gone on for a long time. Arrange water planting platform 6 in the net that manages 3 formation for water planting platform 6 all can be surrounded by breather pipe 5, and the position department of guaranteeing every water planting platform 6 all can effectively adjust the temperature, promotes the promotion of experimental effect.

In the experiment process, an experimental group and a control group which need to be subjected to a comparative experiment are respectively planted on the two planting beds 16 in the same water planting platform 6 for experiment. When the circulation mechanism 8 is operated, as shown in fig. 4 and 6, the circulation pump 12 pumps the nutrient solution in the nutrient solution tank 9 into the infusion tube 10, and the nutrient solution flows from the infusion tube 10 to the liquid inlet hole 34 of the planting bed 16 and flows into the planting bed 16. When the nutrient solution flows onto the waterwheel 22, the waterwheel 22 is pushed to rotate under the action of water power, the waterwheel 22 rotates to stir the nutrient solution through the comb-shaped guide plate 23, and the nutrient solution is guided to be divided into a plurality of strands and sent to the lower part of the planting cylinder 24. The nutrient solution is uniformly spread on the bottom wall of the planting bed 16 and flows to the liquid outlet 33, the roots of the oranges are soaked in the process, so that the oranges in the same column can uniformly absorb nutrition, and the accuracy of experimental research is improved. When the waterwheel 22 rotates, the rotating shaft 21 fixedly connected with the waterwheel is driven to rotate, the rotating shaft 21 transmits rotating power to the main gear 25 through the first belt, the main gear 25 rotates, the main gear 25 pushes the meshed planting cylinders 24 to rotate, so that the oranges automatically rotate in the planting holes 20, all parts of the oranges can receive illumination, multidirectional uniform growth of the oranges is facilitated, the roots of the oranges fully contact with nutrient solution when the oranges rotate, the roots of the oranges on the inner sides of the roots can also absorb nutrients, the growth quality of the oranges is ensured, and research is facilitated.

As shown in fig. 6, the planting cylinders 24 in each row are a first planting cylinder 24, a second planting cylinder 24, a third planting cylinder 24, a fourth planting cylinder 24, a fifth planting cylinder 24 and a sixth planting cylinder 24 from left to right. Every two adjacent planting cylinders 24 are combined with the push rod 26 to form a crank rocker structure, and when the planting cylinder number one 24 is pushed to rotate by the main gear 25, the planting cylinder number two 24 is pushed to rotate synchronously through the push rod 26. In order to avoid the influence of insufficient power of the rotation of the main gear 25 on the experimental effect, in practical application, a motor may be connected to the outer side of the waterwheel 22 to enhance the thrust of the waterwheel 22 on the main gear 25, thereby ensuring the experimental effect. When the both ends of push rod 26 were drawn the below of planting a section of thick bamboo 24 and No. two planting section of thick bamboos 24 respectively, blade 27 on the push rod 26 was cuted off unnecessary oranges and tangerines root, prevented that the root is too luxuriant and hinder the even stable flow of nutrient solution, guaranteed the experimental effect, and the root that is cuted off falls to and collects on sieve 32. Planting section of thick bamboo 24 is in the rotation, drives the third kind through second belt 28 and plants a section of thick bamboo 24 rotatoryly, makes the third kind plant the oranges and tangerines in a section of thick bamboo 24 and rotate and even photic, later plants and links to each other between the section of thick bamboo 24 for six oranges and tangerines all can rotate and keep the synchronous growth of oranges and tangerines, promote experimental effect.

When the waterwheel 22 rotates, air in the planting bed 16 is driven to flow rapidly, aerobic respiration of the root of the citrus is facilitated, and large-scale death due to anaerobic respiration of the citrus is prevented. The nutrient solution flows out of the planting bed 16 from the liquid outlet 33 and flows into the temperature adjusting pipe 31 through the connecting pipe 30, the temperature of the nutrient solution in the temperature adjusting pipe 31 is adjusted under the influence of the temperature of the air flow in the pipe 3, the temperature of the nutrient solution which changes under the influence of illumination when the nutrient solution flows in the planting bed 16 is adjusted and restored, the temperature balance of the nutrient solution flowing into the planting bed 16 is ensured, and the experimental error is reduced. After the temperature of the nutrient solution is adjusted by the temperature adjusting pipe 31, the nutrient solution flows back to the nutrient solution box 9 along the return pipe 11 for repeated use of the nutrient solution, and the experiment cost is reduced.

The slot cover 19 is opened, the sieve plate 32 is taken out, and the cut root can be treated.

When the liquid level in the nutrient solution box 9 descends, the floating ball 15 sinks along with the liquid level, so that the control valve 14 is pulled through the lifting rope, the liquid supplementing pipe 13 is opened, the liquid supplementing pipe 13 introduces the connected nutrient solution source into the nutrient solution box 9, the nutrient solution is supplemented at any time, and the automatic management of the system is improved. When the liquid level rises, the floating ball 15 moves upwards, the pulling force of the lifting rope on the control valve 14 disappears, and the control valve 14 automatically resets under the action of the torsion spring, so that the liquid supplementing pipe 13 is closed again, and the nutrient solution is prevented from overflowing to the outer side of the nutrient solution box 9.

The foregoing is merely an example of the present invention and common general knowledge in the art of specific structures and/or features of the invention has not been set forth herein in any way. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (7)

1. The liquid film water culture device for evaluating the stress resistance of the oranges is characterized by comprising a shed body, wherein a plurality of groups of water culture platforms are arranged in the shed body, the plurality of groups of water culture platforms are distributed in a rectangular array shape, passages are formed between adjacent groups of water culture platforms, each group of water culture platform comprises a circulation mechanism and at least two planting beds, the circulation mechanism comprises a nutrient solution box, a liquid conveying pipe and a return pipe, each planting bed is provided with a head part and a tail part, the head part is higher than the tail part, the two planting beds form a V shape, the tail parts and the tail parts of the planting beds in the same group of water culture platforms are connected, the circulation mechanism is positioned between the connected tail parts, the planting beds are all in a groove shape, groove covers are arranged on the planting beds, planting holes are arranged on the groove covers, liquid inlet holes are arranged at the upper ends of the head parts and are all connected with the liquid conveying pipe, liquid outlet holes are arranged at the lower ends of the tail parts and are all connected with the return pipe;

a planting cylinder is rotatably connected in the planting hole, the lower end of the planting cylinder penetrates through the planting hole and extends into the planting bed, teeth are arranged on the outer wall of the lower end of the planting cylinder, a main gear is rotatably connected to the planting bed on the outer side of the planting cylinder, the main gear is meshed with the teeth, and a first belt is connected between the main gear and the rotating shaft; the planting hole has a plurality of that are rectangular array form and distribute, and each row of rectangular array extends to the afterbody direction by the head of planting the bed, and every two adjacent planting section of thick bamboo are a small group in same row, are equipped with the push rod between two planting sections in same small group, and fixed connection is on the lower extreme terminal surface of planting a section of thick bamboo in both sides respectively at the both ends of push rod, and the both ends of push rod all are equipped with the blade, are connected with the second belt between the planting section of thick bamboo between the adjacent small group, connect through the second belt between the planting section of thick bamboo between the adjacent small group.

2. The liquid film hydroponic device for evaluating the stress resistance of the oranges according to claim 1, wherein the circulating mechanism further comprises a circulating pump, the circulating pump is located in the nutrient solution tank, a liquid supplementing pipe is arranged on the nutrient solution tank, a control valve is arranged on the liquid supplementing pipe, a torsion spring is arranged on the control valve, a lifting rope is wound on the control valve, a floating ball is connected to the lifting rope, and the floating ball is placed in the nutrient solution tank.

3. The liquid film hydroponic device for evaluating the stress resistance of the citrus as claimed in claim 2, wherein the inner side of the head of the planting bed is rotatably connected with a rotating shaft, a waterwheel is fixedly connected to the rotating shaft, the waterwheel comprises a plurality of guide plates which are uniformly distributed around the rotating shaft in sequence, and the guide plates are all in a comb shape.

4. The liquid membrane hydroponics device for evaluating the stress resistance of oranges according to claim 1, wherein a ground pipe is buried under the ground below the canopy body, a canopy frame is arranged at the upper part of the canopy body, the canopy frame comprises a plurality of support pipes, the support pipes and the ground pipe are distributed in a grid shape, grid point positions of grids formed by the support pipes correspond to grid point positions of grids formed by the ground pipe in a one-to-one mode, ventilation pipes are connected between the grid point positions and the ground pipe, and the ventilation pipes penetrate through the canopy body from the ground to the top and are connected with the support pipes.

5. The liquid film hydroponics device for evaluating citrus stress resistance according to claim 4, wherein the hydroponics tables correspond to grids formed by the ground pipes one to one, and the hydroponics tables are all located in the corresponding grids.

6. The liquid film hydroponic device for evaluating the stress resistance of the citrus as claimed in claim 5, wherein a support frame is arranged below the planting bed, the support frame comprises a plurality of connecting pipes, the connecting pipes are connected with the liquid outlet holes, temperature adjusting pipes are connected to the connecting pipes, and one ends of the temperature adjusting pipes, which are far away from the connecting pipes, penetrate through the pipe and are communicated with the return pipe.

7. The liquid membrane hydroponics device for evaluating the stress resistance of citrus fruits according to claim 6, wherein the tank cover is detachably connected to a planting bed, and a sieve plate is arranged in the planting bed.

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