A method for cultivating seedling of trichosanthes fruit

Abstract

The application belongs to seedling root water supply, and particularly relates to a method for cultivating Trichosanthes kirilowii seedlings, wherein the Trichosanthes kirilowii seedlings are transplanted to a seedling cultivation base when 2-3 true leaves grow out of the Trichosanthes kirilowii seedlings, and the Trichosanthes kirilowii seedlings are regularly drip irrigated in the seedling cultivation base; the drip irrigation equipment comprises a main water pipe and a plurality of drip irrigation pipes arranged according to the direction of a plot, the distance between the drip irrigation pipes and the Trichosanthes kirilowii seedlings is 20-30 cm, and the embedding depth of the drip irrigation pipes is 15-23 cm; a high-frequency vibration hose is arranged in the center of the drip irrigation pipe. During the cultivation period after the Trichosanthes kirilowii seedlings are transplanted, drip irrigation technology is used for irrigation and medicine supply, so that the survival rate of the Trichosanthes kirilowii seedlings can be effectively improved. By additionally arranging the high-frequency vibration hose, even in the environment of 'low water pressure and large aperture drip irrigation hole', clogging is not easy to occur, and the anti-clogging effect is good. By interplanting the Trichosanthes kirilowii seedlings and Dendrobium huoshanense seedlings, under the action of 'weakened version' ultrasonic waves generated by the high-frequency vibration hose, the survival rate of the Dendrobium huoshanense seedlings can be improved.

Description

Technical Field

[0001] This invention belongs to the field of seedling root irrigation technology, specifically relating to a method for cultivating Trichosanthes kirilowii seedlings. Background Technology

[0002] Drip irrigation technology is commonly used in the large-scale cultivation of Trichosanthes kirilowii seedlings.

[0003] Drip irrigation uses plastic pipes to deliver water to the roots of crops through orifices or drippers for localized irrigation. Compared to sprinkler irrigation, drip irrigation offers greater water conservation and yield increases. It is suitable for irrigating fruit trees, vegetables, cash crops, and greenhouses, and can also be used for field crops in arid and water-scarce areas. Its drawback is that drippers are prone to scaling and clogging, therefore, strict water filtration is necessary.

[0004] Drip head orifice diameter: The orifice diameter of drip heads generally ranges from 0.5 to 2.0 mm, with the specific choice depending on the crop type and soil conditions. For example, the orifice diameter of drip tape is usually 0.5-0.7 mm, while that of labyrinth drip tape is smaller, usually 0.3-0.6 mm.

[0005] However, patch-type drip irrigation tape is not suitable for administering medication or for cultivating Trichosanthes kirilowii seedlings because it is generally not buried in the soil and is usually placed on the ground for drip irrigation. For drip irrigation of Trichosanthes kirilowii seedlings, the tape usually needs to be buried in the soil; the burial depth of the underground drip irrigation pipe is generally 15-30cm to meet the water needs of the seedlings and reduce evaporation loss.

[0006] The working pressure of drip irrigation pipes is generally between 0.01 and 0.1 MPa. If the water pressure is too high, it may cause the drip irrigation pipe to burst or leak; while if the water pressure is too low, it may cause a large deviation in the flow rate of the drippers, affecting the uniformity of irrigation.

[0007] Currently, the cultivation of Trichosanthes kirilowii seedlings generally requires large-diameter drip heads and low water pressure, considering the seedlings' fragility and irrigation needs. For example, the drip hole diameter is 1.8~2mm, and the water pressure is 0.05~0.06MPa. However, this approach can lead to a problem: when the drip irrigation pipe is buried in the soil, some soil may seep into the drip head and clog it when the pipe is not in use. Even with subsequent water pressure, this may not be able to clear the blockage, resulting in complete clogging of the drip hole. Furthermore, if medication is administered through the drip irrigation pipe, scaling and clogging are prone to occur. Therefore, it is necessary to periodically inject pulsed high-pressure water (usually at a pressure greater than 0.8MPa) into the drip irrigation pipe to alleviate the clogging problem.

[0008] However, this approach has several drawbacks. First, because drip irrigation networks typically cover a large area, backwashing wastes water resources. Second, plant roots are generally hydrotropic, and a large number of fibrous roots usually accumulate near the dripper head. High-pressure water sprayed through small holes in unblocked dripper openings has a reduced-power effect, potentially damaging some newly sprouted fibrous roots. Finally, because backwashing usually takes a long time, excessive water is often discharged during this period. If not drained in time, this can affect the growth of Trichosanthes kirilowii seedlings. Therefore, proper drainage is essential, and the process must be carried out on sunny days, which imposes significant limitations.

[0009] Based on this, the present invention is proposed. Summary of the Invention

[0010] The purpose of this invention is to provide a method for cultivating Trichosanthes kirilowii seedlings to solve the above-mentioned problems.

[0011] A method for cultivating Trichosanthes kirilowii seedlings includes the following steps:

[0012] When the Trichosanthes kirilowii seedlings have grown 2-3 true leaves, they are transplanted to the seedling cultivation base. The seedling cultivation base is equipped with drip irrigation equipment, and the Trichosanthes kirilowii seedlings are regularly irrigated by drip irrigation. The drip irrigation equipment includes a main water pipe and multiple drip irrigation pipes arranged according to the bed direction, and all drip irrigation pipes are connected to the main water pipe. The distance between the drip irrigation pipes and the Trichosanthes kirilowii seedlings is 20-30cm, and the burial depth of the drip irrigation pipes is 15-23cm. A high-frequency vibrating hose is installed in the center of each drip irrigation pipe.

[0013] In a further improvement, the drip irrigation pipe includes a pipe body, and the side wall of the pipe body is provided with a plurality of drip irrigation holes, the diameter of which is 1.8~2mm; when the high-frequency vibrating hose does not vibrate, the water pressure inside the pipe body is 0.05~0.06MPa.

[0014] In a further improvement, one end of the tube is equipped with an ultrasonic transducer for driving the high-frequency vibrating hose. A frustum is provided between the ultrasonic transducer and the head end of the tube. The large end of the frustum is fixedly connected to the vibrating end of the ultrasonic transducer, and the small end of the frustum is fixedly connected to the head end of the tube. The high-frequency vibrating hose includes a hose body, a stainless steel wire coaxially arranged with the hose body, and multiple rugby ball-shaped foam aluminum alloy balls sleeved on the outside of the stainless steel wire. The tail end of the stainless steel wire is fixedly connected to the small end of the frustum, and the head end of the stainless steel wire passes through the side wall of the main water pipe and is fixedly connected to a positioning block on the outside of the main water pipe. All the foam aluminum alloy balls are located inside the hose body. The head end of the hose body is sealed to the small end of the frustum, and the tail end of the hose body is integrally connected to a cap. The inside of the hose body is also filled with a non-Newtonian fluid medium.

[0015] In a further improvement, the small end of the frustum is integrally connected to a lead pipe section that is inserted into the head end of the tube.

[0016] A further improvement is that the foamed aluminum alloy balls are made of materials with a density of 0.8~0.9 g / cm³. 3 It is made of foamed aluminum alloy.

[0017] As a further improvement, the lower part of the foam aluminum alloy ball is provided with multiple protrusions 251.

[0018] In a further improvement, the non-Newtonian fluid medium is composed of starch, water, ethanol and pentanol mixed in a mass ratio of 24:5:2:1.

[0019] In a further improvement, the ultrasonic frequency of the ultrasonic transducer is 31 kHz or 117 kHz.

[0020] As a further improvement, the outer side of the main water pipe is also equipped with fasteners for tightening and sealing the positioning block.

[0021] Further improvements include intercropping Trichosanthes kirilowii seedlings with Dendrobium huoshanense seedlings after transplanting them to the seedling cultivation base.

[0022] Compared with the prior art, the beneficial effects of this invention are as follows:

[0023] 1. The Trichosanthes kirilowii seedling cultivation method of the present invention improves the existing drip irrigation technology by using drip irrigation and drug administration during the cultivation period after transplanting of Trichosanthes kirilowii seedlings, thereby effectively improving the survival rate of Trichosanthes kirilowii seedlings.

[0024] 2. By improving the existing drip irrigation pipes and adding a high-frequency vibrating hose, even in an environment of "low water pressure and large-diameter drip irrigation holes", it is not easy to get clogged, and the anti-clogging effect is good.

[0025] 3. By intercropping Trichosanthes kirilowii seedlings with Dendrobium huoshanense seedlings, the survival rate of Dendrobium huoshanense seedlings can be improved under the action of "weakened" ultrasonic waves generated by high-frequency vibrating tubing. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the drip irrigation equipment described in this invention;

[0027] Figure 2 This is a schematic diagram showing the connection between the drip irrigation tube and the ultrasonic transducer described in this invention;

[0028] Figure 3 This is a schematic diagram of the inside of the drip irrigation pipe described in this invention;

[0029] Figure 4 It is a graph showing the relationship between changes in ultrasonic frequency and the corresponding changes in blockage rate. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0031] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this 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 this invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] 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.

[0033] Example 1

[0034] 1. Seed treatment: Select plump, disease-free, and high-germination-rate Trichosanthes kirilowii seeds. Soak the seeds in 40℃ warm water for 24 hours, drain, and then sow.

[0035] 2. Sowing time and method: Sow in March to April. When sowing, sow 5-6 seeds per hole with a row spacing of 15-20 cm and a hole spacing of 5-6 cm. Cover with 3-4 cm of soil and keep the soil moist. Seedlings will emerge in 15-20 days.

[0036] 3. Seedling management: Keep the soil moist and the temperature between 15-25℃. Transplant the seedlings when they have 2-3 true leaves.

[0037] 4. Transplanting:

[0038] When the Trichosanthes kirilowii seedlings have grown 2-3 true leaves, transplant them to the seedling cultivation base. The seedling cultivation base is equipped with drip irrigation equipment and the seedlings are regularly drip-irrigated. The row and plant spacing is 15×18 cm or 15×20 cm. Cover with soil, tamp it down, and cover with straw to retain moisture.

[0039] like Figure 1 , 2As shown, the drip irrigation equipment includes a main water pipe 10 and multiple drip irrigation pipes 20 arranged in the direction of the furrow. All drip irrigation pipes 20 are connected to the main water pipe 10. The distance between the drip irrigation pipe 20 and the Trichosanthes kirilowii seedling is 20-30cm, and the burial depth of the drip irrigation pipe 20 is 15-23cm. A high-frequency vibrating hose is provided in the center of the drip irrigation pipe 20.

[0040] Example 2

[0041] In Example 1, as Figure 2 , 3 As shown, the drip irrigation pipe 20 includes a pipe body 21, and the side wall of the pipe body 21 is provided with a plurality of drip irrigation holes 211, the diameter of the drip irrigation holes 211 being 1.8~2mm; when the high-frequency vibrating hose does not vibrate, the water pressure inside the pipe body 21 is 0.05~0.06MPa (i.e., conventional water pressure).

[0042] One end of the tube 21 is provided with an ultrasonic transducer 30 for driving the high-frequency vibrating hose. A frustum 40 is provided between the ultrasonic transducer 30 and the head end of the tube 21. The large end of the frustum 40 is fixedly connected to the vibrating end of the ultrasonic transducer 30, and the small end of the frustum 40 is fixedly connected to the head end of the tube 21. The high-frequency vibrating hose includes a hose body 22, a stainless steel wire 23 coaxially arranged with the hose body 22, and a plurality of rugby ball-shaped foam aluminum alloys sleeved on the outside of the stainless steel wire 23. The gold ball 25, the tail end of the stainless steel wire 23 is fixedly connected to the small end of the truncated cone 40, and the head end of the stainless steel wire 23 passes through the side wall of the main water pipe 10 and is fixedly connected to the positioning block 51 on the outside of the main water pipe 10; all the foam aluminum alloy balls 25 are located inside the hose body 22, the head end of the hose body 22 is sealed to the small end of the truncated cone 40, and the tail end of the hose body 22 is integrally connected to the cap 221; the inside of the hose body 22 is also filled with a non-Newtonian fluid medium 26.

[0043] The main water pipe 10 has a connection hole 11 on its side wall for connecting to the tail end of the pipe body 21.

[0044] Because drip irrigation pipes are generally made of plastic, which has a certain degree of elasticity, their vibration transmission effect is not good. In this invention, the transmission effect of 3mm diameter stainless steel wire is better, while the transmission effect of aluminum wire is average. In addition, 3mm diameter stainless steel wire rope cannot be used because its flexibility is better than that of stainless steel wire, thus its vibration transmission effect is poor.

[0045] Strictly speaking, the cross-section of a rugby ball is not a standard ellipse and does not fully conform to the mathematical definition of a standard ellipse.

[0046] In this invention, compared to spherical or ellipsoidal shapes, the foam aluminum alloy sphere 25 with a rugby ball structure has more remaining space for filling the non-Newtonian fluid medium 26, and its two ends are more likely to generate excitation under the drive of high-frequency vibration, thereby effectively shortening the operation time.

[0047] The foamed aluminum alloy balls 25 are made of materials with a density of 0.8~0.9 g / cm³. 3 It is made of foamed aluminum alloy.

[0048] The lower part of the foam aluminum alloy ball 25 is provided with multiple protrusions 251.

[0049] The non-Newtonian fluid medium 26 is composed of starch, water, ethanol, and pentanol in a mass ratio of 24:5:2:1. Its critical shear rate is 134 s⁻¹. -1 .

[0050] Stainless steel wire 23 passes through individual foam aluminum alloy balls 25, and then the stainless steel wire 23 is fixedly connected to the foam aluminum alloy balls 25. The cap 221 can be sealed by adhesive bonding (such as hot melt adhesive sealing).

[0051] When the ultrasonic transducer 30 vibrates, it is transmitted to the stainless steel wire 23 and the foam aluminum alloy ball 25 through the frustum body 40. After being partially weakened by the non-Newtonian fluid medium 26 and the hose body 22, it is transmitted to the water in the tube body 21. Under the disturbance of the high-frequency vibrating hose, the water in the tube body 21 generates a "weakened version" of ultrasonic waves, which can impact the drip irrigation hole 211, thereby effectively clearing the soil in the drip irrigation hole 211 and preventing blockage. At the same time, the "weakened version" of ultrasonic waves has almost no damage to the roots of Trichosanthes kirilowii near the tube body 21 and does not affect the cultivation and growth of Trichosanthes kirilowii seedlings.

[0052] Because drip irrigation is a low-pressure drip irrigation system, when a portion of a drip irrigation tube becomes blocked, the water pressure inside that tube automatically increases to maintain the flow rate at other outlets. Therefore, during drip irrigation, pressure and flow sensors can be installed inside the drip irrigation tubes. When the blockage coefficient ζ = P / Q (this formula is empirical and does not involve dimensional changes) is greater than or equal to a preset threshold, the ultrasonic transducer 30 is activated, and the high-frequency vibrating hose continues to operate until the blockage coefficient ζ is less than the preset threshold. If, after 30 minutes of continuous high-frequency vibration, the blockage coefficient ζ is still greater than or equal to the preset threshold, the control module of the drip irrigation equipment sends an alarm message to the user. Here, P is the water pressure inside the drip irrigation tube, and Q is the total flow rate of all drip irrigation holes 211 in that tube. When some drip irrigation holes 211 become blocked, P usually increases, Q decreases or remains relatively constant, and the blockage coefficient ζ increases significantly.

[0053] 1. Clog resistance characterization test

[0054] The drip irrigation pipe is buried in the soil to a depth of 23cm; the soil moisture content is maintained at 65%. A row of blue bricks is laid on the ground, along the axial direction of the drip irrigation pipe 20, with the bricks exerting a pressure of 50kPa on the ground to accelerate the compression of the drip irrigation pipe by the soil. When the clogging coefficient ζ≥1 (Q=20L / h), the high-frequency vibrating hose operates continuously for 30 minutes; this drip irrigation is continued for 7 days, and the ratio of clogged drip irrigation holes to the total number of drip irrigation holes (e.g., 20 holes) is calculated as the clogging rate. The criterion for judging a clogged drip irrigation hole is: the ratio of the actual drip flow rate to the original drip flow rate at the factory is less than 50%, which indicates that it is clogged.

[0055] 2. Mortality rate of fibrous roots wrapped around the surface of drip irrigation pipes

[0056] Observe the fibrous roots wrapped around the surface of the drip irrigation pipe and count the total number of dead fibrous roots (fibrous roots that have turned black, rotted, or dried up are judged to be dead). The fibrous root mortality coefficient = the total number of dead fibrous roots / the length of the drip irrigation pipe.

[0057] 3. Survival rate of seedlings intercropped with Dendrobium huoshanense

[0058] Artificial seeds of Dendrobium huoshanense: The germination rate of artificial seeds of Dendrobium huoshanense, which are propagated by axillary buds, protocorms, and adventitious buds, is 65% to 90%, but the survival rate of seedlings is extremely low, usually 15% to 20%.

[0059] This invention involves intercropping *Trichosanthes kirilowii* seedlings with *Dendrobium huoshanense* seedlings after transplanting. One month after transplanting, the survival rates of both *Trichosanthes kirilowii* and *Dendrobium huoshanense* seedlings were observed and measured. During intercropping, the ultrasonic transducer 30 operated for 30 minutes daily at an ultrasonic frequency of 117 kHz. If the blockage coefficient ζ was greater than or equal to a preset threshold, the ultrasonic transducer 30 was activated and operated at 117 kHz for 30 minutes.

[0060] Example 3

[0061] The only difference between this example and Example 2 is that the foam aluminum alloy ball 25 and the hose body 22 are not used, and the stainless steel wire 23 is in direct contact with the water in the tube body 21. All other aspects are the same.

[0062] In this example, it is equivalent to applying undiminished ultrasonic vibration directly to the water inside the tube 21.

[0063] Example 4

[0064] The only difference between this example and Example 2 is that the non-Newtonian fluid medium 26 used in this example is water; all other aspects are the same.

[0065] Example 5

[0066] The only difference between this example and Example 2 is that the non-Newtonian fluid medium 26 in this example is starch and water (mass ratio 3:1), while all other aspects are the same.

[0067] Example 6

[0068] The only difference between this example and Example 2 is that the non-Newtonian fluid medium 26 used in this example is toothpaste (Zhonghua brand, classic series); all other aspects are the same.

[0069] Example 7

[0070] The only difference between this example and Example 2 is that in this example, the non-Newtonian fluid medium 26 is composed of starch, water, and ethanol in a mass ratio of 24:5:3; all other aspects are the same.

[0071] Example 8

[0072] The only difference between this example and Example 2 is that in this example, the non-Newtonian fluid medium 26 is composed of starch, water, and pentanol mixed in a mass ratio of 24:5:3; all other aspects are the same.

[0073] Example 9

[0074] The only difference between this example and Example 2 is that the foam aluminum alloy ball 25 in this example is made of aluminum alloy; all other aspects are the same.

[0075] Example 10

[0076] The only difference between this example and Example 2 is that the stainless steel wire is replaced with aluminum wire in this example; all other aspects are the same.

[0077] Example 11

[0078] The only difference between this example and Example 2 is that stainless steel wire rope is used instead of stainless steel wire in this example; all other aspects are the same.

[0079] The experimental results of Examples 2-11 are shown in Table 1:

[0080] Table 1

[0081]

[0082] As shown in Table 1, if the ultrasonic vibration is not weakened to a certain extent by using a high-frequency vibrating hose, it will directly affect the growth of the fibrous roots wrapped around the surface of the drip irrigation pipe, and may even cause some of the fibrous roots to die.

[0083] The medium inside the tube 21 is preferably a non-Newtonian fluid medium 26. Pentanol is slightly soluble in water, but miscible with organic solvents such as ethanol and ether. Therefore, the system constructed from starch, water, ethanol and pentanol is more suitable for weakening ultrasonic vibration. The added pentanol will significantly affect the survival rate of Dendrobium huoshanense seedlings.

[0084] Example 12

[0085] Based on Example 2, the change in ultrasonic frequency of the ultrasonic transducer 30 and the corresponding blockage rate change curve are shown in the figure. Figure 4 ;Depend on Figure 4 It can be seen that when the ultrasonic frequency of the ultrasonic transducer 30 is 31kHz, 52kHz, 69kHz or 117kHz, 205kHz, the blockage rate is less than or equal to 5%, which can meet the usage requirements.

[0086] However, in the experiment on "the mortality coefficient of fibrous roots wrapped around the surface of drip irrigation pipes", it was found that the mortality coefficient of fibrous roots was less than or equal to 2 roots / dm when the ultrasonic frequency was 31kHz, 117kHz, and 205kHz. In the experiment on "the survival rate of seedlings intercropped with Dendrobium huoshanense", it was found that the seedling survival rate of Dendrobium huoshanense exceeded 40% only when the ultrasonic frequency was 117kHz; even at the ultrasonic frequency of 31kHz, the seedling survival rate of Dendrobium huoshanense was only 26%.

[0087] Example 13

[0088] When cultivating Trichosanthes kirilowii seedlings, if Epimedium is intercropped, it was found that the survival rate of Epimedium remained at 21-33%, which is not much different from the survival rate (18-30%) when the high-frequency vibration hose is not activated.

[0089] Example 14

[0090] To ensure tension, a fastener 50 is provided on the outside of the main water pipe 10 to tighten and seal the positioning block 51. First, the wedge-shaped insert inside the fastener 50 is inserted into the gap between the positioning block 51 and the main water pipe 10 to tighten it, and finally, it is sealed by applying adhesive.

[0091] Example 15

[0092] For ease of installation, the small end of the cone body 40 is integrally connected to a lead pipe section 41 that is inserted into the first end of the pipe body 21.

[0093] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for cultivating Trichosanthes kirilowii seedlings, characterized in that: It comprises the following steps: When the Trichosanthes seedlings grow 2-3 true leaves, they are transplanted to the seedling cultivation base, and the drip irrigation equipment is matched and the Trichosanthes seedlings are drip irrigated regularly in the seedling cultivation base; the drip irrigation equipment comprises a main water pipe (10) and a plurality of drip irrigation pipes (20) arranged according to the direction of the plot, the drip irrigation pipes (20) are all communicated with the main water pipe (10), the distance between the drip irrigation pipes (20) and the Trichosanthes seedlings is 20-30 cm, the embedding depth of the drip irrigation pipes (20) is 15-23 cm, and the central part of the drip irrigation pipe (20) is provided with a high-frequency vibration hose; The drip irrigation pipe (20) comprises a pipe body (21), a plurality of drip irrigation holes (211) are arranged on the side wall of the pipe body (21), and the aperture of the drip irrigation hole (211) is 1.8-2 mm; when the high-frequency vibration hose does not vibrate, the water pressure in the pipe body (21) is 0.05-0.06 MPa; One end of the pipe body (21) is provided with an ultrasonic vibrator (30) for driving the high-frequency vibration hose, a conical body (40) is arranged between the ultrasonic vibrator (30) and the first end of the pipe body (21), the large end of the conical body (40) is fixedly connected with the vibration end of the ultrasonic vibrator (30), the small end of the conical body (40) is fixedly connected with the first end of the pipe body (21), the high-frequency vibration hose comprises a hose body (22), a stainless steel wire (23) coaxially arranged with the hose body (22), a plurality of olive ball-shaped foam aluminum alloy balls (25) sleeved outside the stainless steel wire (23), the tail end of the stainless steel wire (23) is fixedly connected with the small end of the conical body (40), and the first end of the stainless steel wire (23) is fixedly connected with the positioning block (51) outside the main water pipe (10) after penetrating through the side wall of the main water pipe (10); all the foam aluminum alloy balls (25) are located inside the hose body (22), the first end of the hose body (22) is sealingly connected with the small end of the conical body (40), and the tail end of the hose body (22) is integrally connected with a cover part (221); the inside of the hose body (22) is further filled with a non-Newtonian fluid medium (26).

2. The method for cultivating the seedling of Trichosanthes kirilowii according to claim 1, characterized in that: The small end of the conical body (40) is integrally connected with a guide pipe section (41) inserted with the first end of the pipe body (21).

3. The method for cultivating the seedling of Trichosanthes kirilowii according to claim 1, characterized in that: The foam aluminum alloy ball (25) is made of a foam aluminum alloy having a density of 0.8 to 0.9 g / cm 3 .

4. The method for cultivating the seedling of Trichosanthes kirilowii according to claim 1, characterized in that: The lower part of the foam aluminum alloy ball (25) is provided with a plurality of protrusions (251).

5. The method for cultivating the seedling of Trichosanthes kirilowii according to claim 1, characterized in that: The non-Newtonian fluid medium (26) is composed of starch, water, ethanol and amyl alcohol in a mass ratio of 24:5:2:

1.

6. The method for cultivating the seedling of Trichosanthes kirilowii according to claim 1, characterized in that: The ultrasonic frequency of the ultrasonic vibrator (30) is 31 kHz or 117 kHz.

7. The method for cultivating the seedling of Trichosanthes kirilowii according to claim 1, characterized in that: The outside of the main water pipe (10) is further provided with a fastener (50) for tensioning and sealing the positioning block (51).

8. The method for cultivating the seedling of Trichosanthes kirilowii according to claim 1, characterized in that: After the Trichosanthes seedlings are transplanted to the seedling cultivation base, they are interplanted with Dendrobium huoshanense seedlings.

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