A device for breeding rapeseed

Abstract

The application belongs to the technical field of oilseed rape cultivation, and particularly relates to an oilseed rape breeding experiment device, which comprises a planting shed, the inside of the planting shed is provided with a lighting unit, a ventilation unit, an industrial control host and a plurality of planting pots, the industrial control host controls the lighting unit and the ventilation unit to work, each planting pot is provided with an auxiliary unit, and each auxiliary unit comprises a supporting ring, the supporting ring is arranged at the upper center of the planting pot, the supporting ring is provided with a mounting assembly, and is connected with the planting pot through the mounting assembly. The application can increase the light intensity of each position of the oilseed rape canopy, improve the light energy utilization rate, help the oilseed rape to better carry out photosynthesis, can collect the fallen oilseed rape seeds after the oilseed rape grows to the mature stage, improve the accuracy of the subsequent experimental personnel in seed yield statistics, and facilitate personnel in comparing the differences between the main stems and the canopy of the oilseed rape.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of oilseed rape cultivation, and particularly relates to an oilseed rape breeding experiment device. BACKGROUND

[0002] As an important oil crop, oilseed rape is related to edible oil supply and industrial raw material supply. At present, common oilseed rape varieties have limitations in yield, stress resistance and oil content, and are difficult to meet the growing market demand and complex and changeable planting environment. Carrying out oilseed rape breeding experiments aims to cultivate high-yield, high-resistance and high-oil-content high-quality oilseed rape varieties, improve oilseed rape industry benefits and guarantee grain and oil safety.

[0003] At present, due to the instability of outdoor environment, in order to improve the accuracy and stability of the results of oilseed rape breeding experiments, oilseed rape is generally planted in a special planting area. For example, the patent announcement No. CN221615723U discloses an oilseed rape breeding experiment frame, which can improve the oilseed rape breeding effect by adjusting the light structure. However, in actual planting, since the light source is above the oilseed rape, the light is irradiated from top to bottom, and the position of the light source cannot move like sunlight. As the oilseed rape grows, its canopy gradually becomes larger. Only the top of the canopy can receive better light, which not only causes waste of part of the light, but also is not conducive to the growth of the oilseed rape. In addition, in the late maturation period of the oilseed rape, the silique husk is easy to crack, so that the internal oil seeds are easy to fall off, which will affect the accurate measurement of the oilseed rape seed yield by the experimenters in the later period. SUMMARY

[0004] The purpose of the present application is to provide an oilseed rape breeding experiment device to solve the above problems.

[0005] To achieve the above purpose, the following technical scheme is adopted: an oilseed rape breeding experiment device, comprising a planting shed, a light unit, a ventilation unit, an industrial control host and a plurality of planting pots are arranged inside the planting shed, the industrial control host controls the light unit and the ventilation unit to work, each planting pot is installed with an auxiliary unit, and each auxiliary unit comprises:

[0006] a support ring arranged at the upper center of the planting pot, the support ring is installed with a mounting assembly and connected with the planting pot through the mounting assembly;

[0007] a plurality of inclined rods are fixedly arranged on the outer ring wall of the support ring, an insulating block is slidably connected to the rod wall of each inclined rod, and a same fan-shaped reflective film is fixedly connected between the adjacent two insulating blocks, one end of each fan-shaped reflective film away from the insulating block is fixedly connected with the outer ring wall of the support ring, a light sensing assembly is installed on each insulating block, and a magnetic attraction assembly is jointly installed on each insulating block and inclined rod;

[0008] The main stem detection unit is installed inside the support ring and used for detecting the diameter of the main stem of the rape.

[0009] Preferably, the mounting assembly comprises connecting rods fixedly installed on both sides of the outer ring wall of the support ring, and opposite ends of the two connecting rods are fixedly connected with clamping blocks, and the two clamping blocks are detachably clamped with the edge of the planting pot.

[0010] Preferably, each light sensing assembly comprises a circular groove opened in the end face of the insulating block, a photoresistor is installed inside the circular groove, a transparent circular plate is fixedly installed on the groove of the circular groove, and the photoresistor is electrically connected with the measurement circuit of the industrial control host.

[0011] Preferably, each magnetic attraction assembly comprises a circular block fixedly installed on the end of the inclined rod, an electromagnetic ring is sleeved on the outer side of the rod wall of the inclined rod, the electromagnetic ring is installed on the side wall of the circular block on the side close to the support ring, an iron ring is fixedly connected with the side wall of the insulating block on the side away from the support ring, the iron ring is sleeved on the outer side of the inclined rod, and the electromagnetic ring is electrically connected with the industrial control host.

[0012] Preferably, the main stem detection unit comprises an elastic air bag sleeve fixedly installed on the inner wall of the support ring, a gas pressure detection probe is arranged on the inner side of the elastic air bag sleeve, the gas pressure detection probe is used for detecting the gas pressure inside the elastic air bag sleeve, one of the connecting rods is provided with a gas supply assembly, and the gas supply assembly is in communication with the ventilation unit.

[0013] Preferably, the gas supply assembly comprises an air flow channel opened in the connecting rod, the ring wall of the support ring is provided with an air inlet hole matched with the air flow channel, the air inlet hole is in communication with the inside of the elastic air bag sleeve, the air flow channel is fixedly connected with a bend pipe, and the air outlet end of the ventilation unit is in communication with the bend pipe.

[0014] Preferably, the bottom of the support ring is fixedly installed with a circular ring, the inside of the circular ring is hollow, a shunt pipe in communication with the air flow channel is fixedly inserted on one side of the top of the circular ring, a shunt electric control valve is installed in the inside of the shunt pipe, a main flow electric control valve is installed in the inside of the air flow channel at a position between the shunt pipe and the air inlet hole, and a plurality of air injection pipes are fixedly inserted on the bottom of the circular ring, and the shunt electric control valve and the main flow electric control valve are electrically connected with the industrial control host.

[0015] Preferably, the side wall of each insulating block is fixedly installed with two symmetrically arranged L-shaped blocks, the side wall of each L-shaped block is threadedly assembled with a locking bolt, and each locking bolt is threadedly connected with the side wall of the corresponding circular block.

[0016] Compared with the prior art, the rape breeding experiment device has the following advantages:

[0017] 1. The planting shed, light unit, ventilation unit, industrial control host and planting pot are set up, the oilseed rape can be cultivated in the greenhouse, the light is reflected through the cooperation of the support ring, the installation assembly, the inclined rod, the insulating block and the fan-shaped reflective film, the light intensity of each position of the oilseed rape canopy is increased, the light energy utilization rate is improved, the photosynthesis of the oilseed rape is better, and then the growth and development of the oilseed rape are promoted, and finally, the oilseed rape seeds falling after the oilseed rape grows to the mature period are collected, and the accuracy of the subsequent experimental personnel in the seed yield statistics is improved.

[0018] 2. The light sensing assembly and the magnetic attraction assembly are set up, the coverage range of the fan-shaped reflective film can be automatically controlled based on the size of the coverage range of the oilseed rape canopy, the fan-shaped reflective film can expand the reflection and collection area along with the growth of the oilseed rape, and the experimental personnel can roughly estimate the size of the oilseed rape canopy profile, and the difference between the canopies of the oilseed rape is compared.

[0019] 3. The main stem detection unit is set up, the size of the main stem can be quickly detected in cooperation with the ventilation unit, and the circular ring, the shunt pipe, the shunt electric control valve, the main flow electric control valve and the air jet pipe are set up, the soil around the roots of the oilseed rape can be conveniently ventilated and loosened, the roots of the oilseed rape can absorb carbon dioxide, and the growth of the oilseed rape is assisted. DETAILED DESCRIPTION

[0020] Figure 1 It is a structure schematic view of the oilseed rape breeding experiment device provided by the application.

[0021] Figure 2 It is a three-dimensional structure schematic view of the planting pot and the auxiliary unit of the oilseed rape breeding experiment device provided by the application.

[0022] Figure 3 It is an internal structure schematic view of the planting pot of the oilseed rape breeding experiment device provided by the application.

[0023] Figure 4 It is a top view structure schematic view of the auxiliary unit of the oilseed rape breeding experiment device provided by the application.

[0024] Figure 5 It is a sectional view structure schematic view of the light sensing assembly of the oilseed rape breeding experiment device provided by the application.

[0025] Figure 6 It is a structure schematic view of the oilseed rape breeding experiment device provided by the application.

[0026] Figure 7 It is a structure schematic view of the oilseed rape breeding experiment device provided by the application. Figure 6 The structure enlarged view of part A of the oilseed rape breeding experiment device provided by the application.

[0027] Figure 8 is a kind of oilseed rape breeding experimental device of the application Figure 3 The enlarged view of the structure of part B in the middle;

[0028] Figure 9 It is the connection diagram of ventilation unit and each elbow pipe of the oilseed rape breeding experimental device provided by the application.

[0029] In the figure: 1 planting shed, 2 lighting unit, 3 ventilation unit, 4 industrial control host, 5 planting pot, 6 auxiliary unit, 7 support ring, 8 installation assembly, 81 connecting rod, 82 clamping block, 9 inclined rod, 10 insulating block, 11 fan-shaped reflective film, 12 light sensing assembly, 121 circular groove, 122 light-dependent resistor, 123 transparent round plate, 13 magnetic attraction assembly, 131 round block, 132 electromagnetic ring, 133 iron ring, 14 main stem detection unit, 141 elastic air bag sleeve, 142 air pressure detection probe, 15 air supply assembly, 151 air flow channel, 152 air inlet hole, 153 elbow pipe, 16 round ring, 17 shunt pipe, 18 shunt electric control valve, 19 main flow electric control valve, 20 air jet pipe, 21 L-shaped block, 22 locking bolt. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all embodiments.

[0031] As Figures 1-9 shown, an oilseed rape breeding experimental device includes a planting shed 1, the inside of the planting shed 1 is provided with a lighting unit 2, a ventilation unit 3, an industrial control host 4 and a plurality of planting pots 5, the industrial control host 4 controls the lighting unit 2 and the ventilation unit 3 to work, each planting pot 5 is installed with an auxiliary unit 6, each auxiliary unit 6 includes: a support ring 7, the support ring 7 is arranged at the upper center of the planting pot 5, the support ring 7 is installed with an installation assembly 8, and is connected with the planting pot 5 through the installation assembly 8, the installation assembly 8 includes connecting rods 81 fixedly installed on both sides of the outer ring wall of the support ring 7, the opposite ends of the two connecting rods 81 are fixedly connected with clamping blocks 82, and the two clamping blocks 82 are detachably clamped with the edges of the planting pot 5.

[0032] Multiple diagonal rods 9 are evenly distributed and fixed to the outer ring wall of the support ring 7. Each diagonal rod 9 has an insulating block 10 slidably connected to its wall. The same fan-shaped reflective film 11 is fixedly connected between two adjacent insulating blocks 10. The end of each fan-shaped reflective film 11 away from the insulating block 10 is fixedly connected to the outer ring wall of the support ring 7. Two symmetrically arranged L-shaped blocks 21 are fixedly installed on the side wall of each insulating block 10. Each L-shaped block 21 has a locking bolt 22 threadedly fitted to its side wall. Each locking bolt 22 is threadedly connected to the side wall of the corresponding round block 131. This allows for easy fixing of each insulating block 10 after the rapeseed matures, so that it can be used to hold the rapeseed pods later.

[0033] Each insulating block 10 is equipped with a light-sensing component 12. Each light-sensing component 12 includes a circular groove 121 formed on the end face of the insulating block 10. A photoresistor 122 is installed inside the circular groove 121. A transparent circular plate 123 is fixedly installed at the opening of the circular groove 121. The photoresistor 122 is electrically connected to the measurement circuit of the industrial control host 4. The surface of the transparent circular plate 123 can be coated with a hydrophobic coating to prevent water vapor from condensing on the surface of the transparent circular plate 123 and affecting the light intensity.

[0034] Each insulating block 10 and the inclined rod 9 are jointly equipped with a magnetic attraction assembly 13. Each magnetic attraction assembly 13 includes a circular block 131 fixedly installed at the end of the inclined rod 9. An electromagnetic ring 132 is sleeved on the outer side of the rod wall of the inclined rod 9, and the electromagnetic ring 132 is installed on the side wall of the circular block 131 near the support ring 7. An iron ring 133 is fixedly connected to the side wall of the insulating block 10 away from the support ring 7, and the iron ring 133 is sleeved on the outer side of the inclined rod 9. The electromagnetic ring 132 is electrically connected to the industrial control host 4. When the electromagnetic ring 132 is energized, it can generate a magnetic attraction force on the iron ring 133.

[0035] The main stem detection unit 14 is installed inside the support ring 7 and is used to detect the diameter of the rapeseed main stem. The main stem detection unit 14 includes an elastic airbag sleeve 141 fixedly installed on the inner wall of the support ring 7. An air pressure detection probe 142 is provided on the inner side of the elastic airbag sleeve 141. The air pressure detection probe 142 is used to detect the air pressure inside the elastic airbag sleeve 141. One of the connecting rods 81 is equipped with an air supply component 15, and the air supply component 15 is connected to the ventilation unit 3. The air pressure detection probe 142 can detect the air pressure inside the elastic airbag sleeve 141 and convert the air pressure into an electrical signal to feed back to the industrial control host 4.

[0036] The air supply assembly 15 includes an airflow channel 151 formed inside one of the connecting rods 81. The ring wall of the support ring 7 is provided with an air inlet 152 that matches the airflow channel 151. The air inlet 152 is connected to the interior of the elastic airbag sleeve 141. The airflow channel 151 is fixedly connected to a bend 153. The air outlet of the ventilation unit 3 is connected to the bend 153, which facilitates air supply to the interior of the elastic airbag sleeve 141.

[0037] The bottom of the supporting ring 7 is fixedly installed with a circular ring 16, the inside of the circular ring 16 is hollow, the top side of the circular ring 16 is fixedly inserted with a shunt pipe 17 which is communicated with the airflow channel 151, the inside of the shunt pipe 17 is installed with a shunt electric control valve 18, the inside of the airflow channel 151 is installed with a main flow electric control valve 19 between the shunt pipe 17 and the air inlet hole 152, the bottom of the circular ring 16 is fixedly inserted with a plurality of air injection pipes 20, the shunt electric control valve 18 and the main flow electric control valve 19 are electrically connected with the industrial computer 4, the depth of the air injection pipe 20 inserted into the planting soil is about 5 centimeters, the spool of the shunt electric control valve 18 and the main flow electric control valve 19 keeps closed state in the unpowered state.

[0038] The operation principle of the present application is described as follows: each planting pot 5 is placed in the planting shed 1, the distance between adjacent planting pots 5 is kept at 40-50 cm, then each elbow pipe 153 is communicated with the air outlet end of the ventilation unit 3, then the planting soil is laid in each planting pot 5, and the rape seedlings are transplanted into the planting pot 5, then the clamping block 82 is clamped outside the planting pot 5, so that the seedlings are on the inside of the supporting ring 7 (the highest point of the inclined rod 9 is about 7 cm away from the surface of the planting soil, to avoid the subsequent growth of the rape branches winding on the inclined rod 9), then the power supply connector at each supporting ring 7 is connected with the output end of the industrial computer 4, during the growth of the rape, the industrial computer 4 controls the light unit 2 to work, which can provide light for the rape (the light time is generally kept at 12-16 hours), and controls the ventilation unit 3 to work, to ventilate in the planting shed 1 (the planting shed 1 is also provided with a watering unit, a temperature control unit, etc., which are not shown in the figure);

[0039] During the growth of the rape, the light emitted by the light unit 2 will irradiate to each planting pot 5, with the growth of the rape, the main stem of the rape will pass through the supporting ring 7, and its canopy gradually becomes larger, when the coverage range of the canopy exceeds each insulating block 10, the canopy of the rape will hinder the light, at this time, the photosensitive resistor 122 inside the insulating block 10 will cause its own resistance to increase due to the weakening of the light intensity, and the measurement circuit of the industrial control host 4 will detect that the current intensity passing through the connection loop of the photosensitive resistor 122 is lower than 15mA, at this time, the industrial control host 4 will gradually increase the current intensity flowing into each electromagnetic ring 132 at the planting pot 5, due to the gradual increase of the current intensity, the electromagnetic force generated by each electromagnetic ring 132 gradually becomes larger, so as to attract the iron ring 133 to drive the insulating block 10 to gradually move to the direction of the same side circular block 131, when each insulating block 10 exceeds the coverage range of the rape canopy, due to the obstruction of the rape canopy, the light intensity irradiated to each photosensitive resistor 122 is large enough, at this time, the industrial control host 4 suspends the increase of the current intensity flowing into the electromagnetic ring 132, so that each electromagnetic ring 132 maintains the current intensity, thereby the position of each insulating block 10 can be automatically adjusted with the growth of the rape, and when the insulating block 10 moves, each fan-shaped reflective film 11 can be gradually stretched and unfolded, when the light irradiates to the fan-shaped reflective film 11 through the gap between the leaves of the rape canopy, the reflective coating on the surface of the fan-shaped reflective film 11 will reflect the light to the rape canopy, thereby the light intensity at each position of the rape canopy can be increased, the light energy utilization rate is improved, which helps the rape to better carry out photosynthesis, and then promotes the growth and development of the rape, at the same time, since each insulating block 10 moves synchronously with the growth and expansion of the canopy, therefore, the experimenters can roughly estimate the diameter of the rape canopy according to the position of the insulating block 10 or the current intensity flowing into the electromagnetic ring 132, thereby the experimenters can quickly locate the rape with large growth difference (the industrial control host 4 will record the current intensity flowing into the electromagnetic ring 132 of each planting pot 5 in real time, and each planting pot 5 is numbered, the experimenters can quickly check the current intensity flowing into the electromagnetic ring 132 of each planting pot 5 through the display screen of the industrial control host 4, so as to facilitate the experimenters to observe the rape with growth difference);

[0040] During the growth of the rape, the industrial computer 4 will control the main flow electric control valve 19 in each elbow pipe 153 to be powered on and opened every 24 hours, and control the ventilation unit 3 to supply air to the inside of the elbow pipe 153. The airflow will enter the corresponding airflow channel 151 through the elbow pipe 153, and fill into the elastic air bag sleeve 141 through the air inlet hole 152. After the main flow electric control valve 19 works for 10 seconds, the industrial computer 4 will control the main flow electric control valve 19 to be powered off and closed. Then the industrial computer 4 controls the corresponding air pressure detection probe 142 to work. The air pressure detection probe 142 can detect the air pressure inside the same side elastic air bag sleeve 141. As the rape grows, the diameter of the main stem will gradually increase. The larger the diameter of the main stem, the smaller the expandable space of the elastic air bag sleeve 141, and the greater the air pressure inside the elastic air bag sleeve 141. Therefore, by detecting the air pressure inside the elastic air bag sleeve 141 through the air pressure detection probe 142, the size of the main stem of the rape can be reflected, so that the experimental personnel can quickly locate the rape with a larger difference in the diameter of the main stem. After the air pressure detection probe 142 works for 3 seconds, the industrial computer 4 controls the main flow electric control valve 19 in the next airflow channel 151 to be powered on and opened according to the numbering order, and repeats the above steps to detect the size of the main stem of each rape and record the data. Subsequent experimental personnel can check the data through the industrial computer 4. (Since the main stem of the rape may have internode protrusions, which may affect the accuracy of the detection of the diameter of the main stem, the experimental personnel can adjust the height of the installation assembly 8 as appropriate. The clamping block 82 of the installation assembly 8 and the clamping depth of the remote planting pot 5 can be adjusted within a certain range to facilitate the adjustment of the height of the support ring 7, so as to be staggered with the internode protrusions, etc.)

[0041] Secondly, the industrial computer 4 will control all the shunt electric control valves 18 to be powered on once every certain period of time (the interval time can be set according to the growth needs of the experimental rape, for example, every 12 hours), and control the ventilation unit 3 to supply air to the inside of each elbow pipe 153. The airflow entering the elbow pipe 153 will enter the inside of the circular ring 16 through the airflow channel 151 and the shunt pipe 17, and finally be sprayed out through each air jet pipe 20. The sprayed airflow will enter the planting soil, so as to increase the air flow in the planting soil and supplement sufficient carbon dioxide for the roots of the rape, which is beneficial to the growth of the rape. The single air supply time can be preset through the industrial computer 4, which is generally set to 5 minutes. At the same time, due to the infiltration of the airflow, the looseness of the soil can be increased to a certain extent, which is beneficial to the extension growth of the roots of the rape.

[0042] Finally, when the rape is grown to the mature stage and the silique gradually ages, the experiment personnel can stretch each insulating block 10 to the maximum position and lock the locking bolt 22 and the corresponding circular block 131, at this time, the position of each insulating block 10 is fixed, when the rape silique bursts, the oil seeds will directly fall on each fan-shaped reflective film 11, and when the experiment personnel picks the rape silique, the rape silique can be directly placed on each fan-shaped reflective film 11, then the clamping block 82 is detached from the planting pot 5, the rape seeds are conveniently stored, and the accurate measurement of the rape seed yield is facilitated.

[0043] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rapeseed breeding experimental device, comprising a planting shed (1), wherein the planting shed (1) is provided with a lighting unit (2), a ventilation unit (3), an industrial control host (4), and multiple planting pots (5), wherein the industrial control host (4) controls the operation of the lighting unit (2) and the ventilation unit (3), and each planting pot (5) is equipped with an auxiliary unit (6), characterized in that, Each auxiliary unit (6) includes: A support ring (7) is set at the center above the planting pot (5). The support ring (7) is equipped with an installation component (8) and is connected to the planting pot (5) through the installation component (8). Multiple diagonal rods (9) are evenly distributed and fixed on the outer ring wall of the support ring (7). Each diagonal rod (9) has an insulating block (10) slidably connected to its wall. The same fan-shaped reflective film (11) is fixedly connected between two adjacent insulating blocks (10). The end of each fan-shaped reflective film (11) away from the insulating block (10) is fixedly connected to the outer ring wall of the support ring (7). Each insulating block (10) is equipped with a light-sensing component (12). Each insulating block (10) and diagonal rod (9) are jointly equipped with a magnetic attraction component (13). The main stem detection unit (14) is installed inside the support ring (7) and is used to detect the diameter of the rapeseed main stem; Each of the photosensitive components (12) includes a circular groove (121) formed on the end face of the insulating block (10), a photoresistor (122) is installed inside the circular groove (121), a transparent circular plate (123) is fixedly installed at the opening of the circular groove (121), and the photoresistor (122) is electrically connected to the measurement circuit of the industrial control host (4). Each of the magnetic attraction components (13) includes a circular block (131) fixedly installed at the end of the inclined rod (9). An electromagnetic ring (132) is sleeved on the outer side of the rod wall of the inclined rod (9), and the electromagnetic ring (132) is installed on the side wall of the circular block (131) near the support ring (7). An iron ring (133) is fixedly connected to the side wall of the insulating block (10) away from the support ring (7), and the iron ring (133) is sleeved on the outer side of the inclined rod (9). The electromagnetic ring (132) is electrically connected to the industrial control host (4).

2. The rapeseed breeding experimental device according to claim 1, characterized in that, The mounting assembly (8) includes connecting rods (81) fixedly installed on both sides of the outer ring wall of the support ring (7). Each of the two connecting rods (81) has a snap-fit ​​block (82) fixedly connected to its opposite end. Both snap-fit ​​blocks (82) are detachably snapped to the edge of the planting pot (5).

3. The rapeseed breeding experimental device according to claim 2, characterized in that, The main stem detection unit (14) includes an elastic airbag sleeve (141) fixedly installed on the inner wall of the support ring (7). An air pressure detection probe (142) is provided on the inner side of the elastic airbag sleeve (141). The air pressure detection probe (142) is used to detect the air pressure inside the elastic airbag sleeve (141). One of the connecting rods (81) is equipped with an air supply component (15), and the air supply component (15) is connected to the ventilation unit (3).

4. The rapeseed breeding experimental device according to claim 3, characterized in that, The air supply assembly (15) includes an airflow channel (151) opened inside one of the connecting rods (81). The ring wall of the support ring (7) is provided with an air inlet (152) that matches the airflow channel (151). The air inlet (152) is connected to the interior of the elastic airbag sleeve (141). The airflow channel (151) is fixedly connected to a bend (153). The air outlet of the ventilation unit (3) is connected to the bend (153).

5. The rapeseed breeding experimental device according to claim 4, characterized in that, A circular ring (16) is fixedly installed at the bottom of the support ring (7). The inside of the circular ring (16) is hollow. A diversion pipe (17) connected to the airflow channel (151) is fixedly inserted on one side of the top of the circular ring (16). A diversion electric control valve (18) is installed inside the diversion pipe (17). A main flow electric control valve (19) is installed inside the airflow channel (151) between the diversion pipe (17) and the air inlet (152). Multiple jet pipes (20) are fixedly inserted at the bottom of the circular ring (16). The diversion electric control valve (18) and the main flow electric control valve (19) are both electrically connected to the industrial control host (4).

6. The rapeseed breeding experimental device according to claim 1, characterized in that, Each insulating block (10) has two symmetrically arranged L-shaped blocks (21) fixedly installed on its sidewall, and each L-shaped block (21) has a locking bolt (22) threadedly fitted on its sidewall, and each locking bolt (22) is threadedly connected to the sidewall of the corresponding round block (131).

Images