JP2013111067A - Method for pulling up long-rooted vegetables and auxiliary device for pulling up the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an auxiliary device which makes it easy and efficient to pull up long-rooted vegetables by softening the soil around the vegetables with a simple means.SOLUTION: The device includes: a base 2 which is connected with a pressured water source and which has branches to distribute pressured water supplied from the pressured water source to multiple directions; and a plural number of long pipe-shaped insertion tubes 5, 5 the lower ends of which are closed and the upper parts of which are connected to the base 2 communicating with the distribution branches. The insertion tubes 5, 5 are to be inserted into the ground at plural points surrounding a long-rooted vegetable plant 17 and have a plural number of discharge holes from which the pressured water 19 is discharged to the opposing face being opposed on either side of the long-rooted vegetable plant.

Description

  The present invention relates to a method for easily extracting long root vegetables such as long persimmon, beef persimmon, and radish planted in a field or the like, and a withdrawal assisting device used for the implementation thereof.

The above-mentioned long root vegetables such as long bean and beef bowl grow deep in the ground, so if you grasp the foliage part and forcibly pull it out, the root part will be easily cut or damaged in the middle, reducing the product value It will be.
For this reason, it is common for long beaks, beef lees, etc. to dig up the soil on one side of these planting ridges deeply with a scoop along the long root vegetables and remove the soil after removing it. However, with such a method, the work efficiency is poor and a lot of labor is required for the drawing work.
In order to solve this problem, in Patent Document 1, a lifting plate is provided on a machine body that is towing or running on a farm so that it can be inserted under a root such as a long bush, and the root is planted. There is described a digging device that can automatically dig up long culm etc. by raising it together with the soil of the culm.

  Moreover, although not for pulling out long root vegetables, for example, as described in Patent Document 2, water injected from the root of the handle is discharged from the tips or side surfaces of a plurality of plowing blades provided at the tips of the handle, There is a lotus digging pit that makes it easier to dig up the mud around the lotus root by softening it.

Japanese Patent Laid-Open No. 5-123022 JP 2001-299035 A

Since the digging device described in Patent Document 1 is a large and expensive machine, there is a problem in that it is economically expensive to use in a small farm and cannot be used effectively in a narrow field. There is.
The cocoons described in Patent Document 2 are effective for digging out lotus roots that grow sideways, but are not suitable for extracting long root vegetables that grow deep in the ground, such as long bean and beef pods. The reason is that just by inserting the plow blade into the ground near the long root vegetables and discharging water from the tip or side of the plow, the water does not flow sufficiently to the long root vegetables on the opposite side of the plow blade. Therefore, it takes a considerable time for the soil around the long root vegetables to become soft, and the drawing work becomes inefficient.

  The present invention has been made in view of the above problems, and by softening the soil around the long root vegetables, that is, by increasing its fluidity, the long root vegetables can be pulled out easily and efficiently. It is an object of the present invention to provide a method for extracting long root vegetables and an auxiliary device for extraction, which are made possible.

According to the method for extracting long root vegetables of the present invention, the above problems are solved as described in the following items.
(1) In the method of pulling out long root vegetables planted on the ground, a plurality of pipes are inserted into the soil surrounding the long root vegetables on the ground, and pressure water is applied from the opposing surfaces across the long root vegetables in the pipes. After discharging, soften the soil around the long root vegetables and increase its fluidity, then pull out the long root vegetables.

  With such a configuration, the soil surrounding the long root vegetables is softened with water, that is, by increasing its fluidity, the long root vegetables can be pulled out easily and without being damaged. Thus, it is not necessary to dig up and remove the soil on one side of the long root vegetable planting pot with a scoop or the like.

According to the long root vegetable extraction assisting apparatus of the present invention, the above-mentioned problems are solved as follows.
(2) A drawing auxiliary device used when pulling out long root vegetables planted on the ground, and is connected to a pressure water supply source and diverts the pressure water supplied from the pressure water supply source in a plurality of directions. A base having a branch channel, and a vertically long pipe shape in which an upper end is connected to the base so as to communicate with each branch channel, and a lower end that can be inserted into a plurality of locations on the ground surrounding the long root vegetables is closed. None, and a plurality of insertion pipes formed with a plurality of discharge holes capable of discharging pressure water on opposing surfaces across the long root vegetables.

With such a configuration, when a plurality of insertion tubes are inserted into a plurality of locations on the ground surrounding the long root vegetables and the pressure water is discharged from the discharge holes of each insertion tube, water is discharged to the soil around the long root vegetables. Since it penetrates and softens, long root vegetables can be pulled out easily.
Moreover, since the structure of the drawing assistance device is simple, an inexpensive drawing assistance device can be provided.

(3) In the above item (2), a plurality of sets of insertion tubes are provided on the base body at intervals substantially equal to the planting intervals of the long root vegetables.

  With such a configuration, a plurality of long root vegetables planted on the ground can be efficiently extracted by a single operation of the extraction assisting device.

(4) In the above item (2) or (3), a discharge hole is also provided at the lower end of each insertion tube.

  With such a configuration, when the insertion tube is inserted into the ground, it can be inserted while softening the soil below the insertion tube, so that the insertion tube can be inserted into the ground with a light force. it can.

(5) In any one of the above items (2) to (4), a plurality of elbow pipes are detachably attached to the base so as to communicate with each branch flow path, and the insertion pipes are provided at the lower ends of the elbows. Removably attach the upper end of the.

  With such a configuration, the elbow tube and the insertion tube can be easily replaced with those suitable for the thickness and length of the long root vegetables to be pulled out.

 (6) A drawing assisting device used when pulling out long root vegetables planted on the ground, which is connected to a pressure water supply source and has a water supply passage inside, and a plurality of pressure water dischargeable units An annular water passage having a closed lower end is formed between an inner cylinder having a discharge hole and an outer cylinder surrounding the inner cylinder, and an upper end portion is formed so that the water passage and the water passage communicate with the base body. And an insertion tube that can be inserted into the ground so as to surround the entire circumference of the long root vegetable.

  With such a configuration, by inserting pressure water from the discharge hole of the inner cylinder in a state where the entire circumference of the long root vegetable is surrounded by the insertion tube, it is inserted without diffusing the pressure water over a wide range. It can be discharged intensively only to the soil around the long root vegetables surrounded by the encasing tube. Therefore, the soil around the long root vegetables softens in a short time, and the extraction work of the long root vegetables can be performed efficiently.

 (7) In the above item (6), a plurality of insertion tubes are provided on the base so as to form an interval substantially equal to the planting interval of the long root vegetables.

  With such a configuration, a plurality of long root vegetables planted on the ground can be efficiently extracted by a single operation of the extraction assisting device.

  According to the present invention, since the soil surrounding the long root vegetables is softened with water, that is, by increasing its fluidity, the long root vegetables can be pulled out easily and without being damaged. In addition, it is not necessary to dig up and remove the soil on one side of the long root vegetable planting pot with a scoop or the like.

It is a perspective view of the extraction auxiliary device of the 1st embodiment of the present invention, and a pressure water supply source. Similarly, it is a disassembled perspective view of the extraction auxiliary device of the first embodiment. Similarly, it is a longitudinal cross-sectional view which shows the point which extracts a long root vegetable by the extraction auxiliary | assistance apparatus of 1st Embodiment. FIG. 4 is an enlarged cross-sectional plan view taken along line IV-IV in FIG. 3. It is a perspective view of the extraction auxiliary | assistance apparatus of the 2nd Embodiment of this invention. Similarly, it is an expansion cross-sectional plan view which shows the point which extracts a long root vegetable by the extraction auxiliary | assistance apparatus of 2nd Embodiment. It is a perspective view of the extraction auxiliary | assistance apparatus of the 3rd Embodiment of this invention. Similarly, it is an expanded transverse plan view which shows the point which extracts a long root vegetable by the extraction auxiliary | assistance apparatus of 3rd Embodiment. It is a top view of the extraction auxiliary | assistance apparatus of the 4th Embodiment of this invention. Similarly, it is an expanded transverse plan view which shows the point which pulls out a long root vegetable by the extraction assistance apparatus of 4th Embodiment. It is a longitudinal cross-sectional view of the drawing assistance apparatus of the 5th Embodiment of this invention. It is the XII-XII line transverse plane view of FIG. It is a longitudinal cross-sectional view which shows the point which pulls out a long root vegetable by the drawing assistance apparatus of 5th Embodiment. It is the XIV-XIV line crossing top view of FIG.

Hereinafter, a first embodiment of the extraction device for extracting long root vegetables according to the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, a drawing assistance device 1 includes a rectangular block-shaped base body 2 made of metal or synthetic resin, and a flow rate control valve 3 having a valve opening / closing handle 3a attached to one side surface thereof. A pair of vertically long insertion pipes 5 and 5 attached to two opposite sides of the base body 2 via elbow pipes 4 and 4 are provided.

A downward U-shaped handle 6 is attached to the upper surface of the base 2 in order to facilitate the operation of the pulling assist device 1.
Further, in the base 2, a flow regulating valve 3 and a T-shaped branch passage (not shown) that opens to the elbow pipes 4 and 4 side are formed, and each of them opens to the elbow pipes 4 and 4 side. An internal thread 8 is formed in the two diverting flow paths 7 facing each other. The male thread 9 formed on one end side of the elbow pipe 4 is wound on the female thread 8 by water-tightly screwing a seal tape or the like, so that both the elbow pipes 4 are attached to and detached from the base body 2 at the horizontal portion. Installed as possible. The elbow pipe 4 is detachable so that it can be replaced with an elbow pipe 4 having different left and right dimensions as shown in FIG. 2 in accordance with the thickness of the long root vegetable to be pulled out.

  The insertion pipes 5 and 5 are made of a metal or hard synthetic resin pipe whose lower end is closed and whose lower end is tapered, and water can be discharged in an inward facing manner on the opposing surfaces. A plurality of discharge holes 10 are arranged at equal intervals in the vertical direction. In addition, the discharge hole 10 (refer FIG. 4) is provided also in the lower end of the insertion tube 5 so that water may discharge below. If it does in this way, when inserting the insertion tube 5 in the ground, since the soil under it becomes soft, it becomes easy to insert the insertion tube 5 in the ground. Moreover, you may attach a diffusion-type nozzle to each discharge hole 10 so that water may diffuse and discharge.

  The insertion tube 5 is detachably attached to the base body 2 by watertightly screwing a male screw portion 11 formed at the upper end portion thereof with a screw (not shown) for providing the inner surface of the lower end portion of the elbow tube 4. Is attached. The reason why the insertion tube 5 is detachable is that it can be replaced with the insertion tube 5 having different vertical dimensions as shown in FIG. 2 according to the length of the long root vegetables to be pulled out.

One end of a pressure-resistant hose 12 is connected to the flow rate adjusting valve 3 of the drawing assistance device 1, and the other end of the hose 12 is connected to a discharge part of a portable engine pump 13 carried into a farm field. . One end of a water supply hose 14 is connected to the suction portion of the engine pump 13, and the other end of the water supply hose 14 is connected to a water storage tank 15 installed in a farm via an opening / closing valve 16. Thus, the water in the water storage tank 15 can be pressurized by the engine pump 13 and supplied to the extraction assisting device 1. The engine pump 13 and the water storage tank 15 constitute a pressure water supply source.
As means for supplying pressure water to the drawing assistance device 1, instead of the engine pump 13, an electric pump, an agricultural sprayer, or the like may be used, or the tap water may be used directly by connecting to a water pipe. Good.
Further, when there are a river or a reservoir near the farm and the water can be used, the reservoir tank 15 is not necessary.

Next, with reference to FIG.3 and FIG.4, the point which pulls out the long root vegetables 17 which are planted in the agricultural field by the extraction assistance apparatus 1 of the said embodiment, for example, a long bamboo basket, is demonstrated.
As described above, first, the elbow pipe 4 and the insertion pipe 5 suitable for the thickness and length of the long root vegetables 17 are attached to the base body 2, then the engine pump 13 is operated, and the base body 2 is connected via the hose 12. The pressure water is supplied to the flow rate control valve 3. The valve opening / closing handle 3a of the flow rate adjusting valve 3 is still closed.

Next, the pair of insertion tubes 5, 5 is straddling the long root vegetables 17 exposed above the planting basket 18 and along the both sides of the long root vegetables 17, Insert deeply into. At this time, it is preferable that the valve opening / closing handle 3 a of the flow rate adjusting valve 3 is slightly opened, pressure water is supplied to the insertion pipe 5, and the water is discharged from the discharge holes 10 while being inserted. If it does in this way, it can prevent that soil enters into each discharge hole 10 provided in insertion tube 5, and clogs.
Moreover, since the soil below the insertion tube 5 is softened by the pressure water discharged from the discharge hole 10 provided at the lower end of the insertion tube 5, the insertion tube 5 is easily inserted.

  Next, the valve opening / closing handle 3a of the flow rate adjusting valve 3 is rotated to the open side to increase the flow rate and the water pressure of the pressure water supplied to each insertion pipe 5. Then, the pressure water 19 is vigorously discharged from the plurality of discharge holes 10 on the opposite surfaces of the both insertion pipes 5, so that two soils surrounding the long root vegetables 17, that is, two soils facing the long root vegetables 17. Water intensively penetrates the soil, softening the soil around the long root vegetables 17 and increasing its fluidity.

  Next, after confirming that the soil around the long root vegetables 17 has sufficiently softened, the valve opening / closing handle 3a is closed to stop water supply to the two insertion pipes 5 and the both insertion pipes 5 are removed from the ground. After that, pull out the long root vegetables 17 by hand. At this time, since the soil around the long root vegetables 17 is soft, it can be easily pulled out without being cut or damaged. In such a manner, a plurality of long root vegetables 17 of the planting basket 18 can be sequentially extracted and harvested efficiently.

5 and 6 show a drawing assistance device according to the second embodiment of the present invention. The drawing assistance device 20 of this example includes a set of four insertion tubes 5, each insertion tube 5 being They are mounted so as to be 90 degrees apart from each other in plan view.
In other words, the elbow pipe 4 is detachably attached to the four side surfaces of the base body 2 in the same manner as in the first embodiment so as to communicate with a diversion channel (not shown) formed in a plan view. The upper end portion of the insertion tube 5 is removably screwed onto the lower end portion of each elbow tube 4. The insertion tubes 5 are arranged 90 degrees apart from each other in the circumferential direction around the virtual axis surrounded by them. Discharge holes 10 similar to those in the first embodiment are formed in the opposing surfaces and lower ends of the insertion tubes 5 and 5 that face each other across the virtual axis.

  On the upper surface of the base body 2, a water supply pipe 21 with a flow rate control valve 3 and a handle 6 that are in communication with an internal flow path are attached, and a hose 12 is connected to the flow rate control valve 3 to connect the first embodiment. Similar to the embodiment, the pressure water is supplied to each insertion tube 5.

  For example, in order to pull out the long root vegetables 17 such as long crab etc. by using the pulling assisting device 20 of the second embodiment, as shown in the enlarged cross-sectional plan view of FIG. It is inserted into the ground of the planting basket 18 so as to straddle the direction, and the pressure water 19 is discharged from the discharge hole 10 of each insertion pipe 5, and the long root vegetables 17 is pulled in the same manner as in the first embodiment. Just exit.

In the drawing assistance device 20 of the second embodiment, the pressure water 19 is discharged from the four sides by the insertion tube 5 consisting of a set of four at four locations in the ground surrounding the long root vegetables 17. The soil around the long root vegetables 17 can be softened in a short time, and the extraction work of the long root vegetables 17 becomes more efficient than the extraction assisting device 1 of the first embodiment.
In the drawing assisting device 20 of the second embodiment, if the base body 2 is a circle or a polygon having a quadrangle or more, four or more insertion tubes 5 can be provided.

7 and 8 show a drawing assist device 22 according to a third embodiment of the present invention.
The pulling assist device 22 of the third embodiment is provided with a pair of insertion tubes 5 and 5 on both sides in the longitudinal direction of a long base 23 having a flow rate adjusting valve 3 similar to the above. Similarly to the above-described embodiment, a plurality of sets (three sets) are attached via the elbow pipes 4 communicated with the branch flow path (not shown) inside the base body 23. The interval between the insertion tubes 5 adjacent in the longitudinal direction is substantially equal to the planting interval of the long root vegetables 17 of the planting basket 18. A handle 6 is attached to the upper surface of the base 23 in order to facilitate the operation of the extraction assisting device 22.

  According to the drawing assisting device 22 of the third embodiment, as shown in the cross-sectional plan view of FIG. 8, a plurality of sets of insertion pipes 5 and 5 are connected to the planting basket 18 by a plurality of lengths of the planting basket 18. By inserting the root vegetables 17 so as to straddle from both sides and discharging the pressure water 19 from the discharge holes 10 of the respective insertion tubes 5, the soil on both sides of the plurality of long root vegetables 17 can be simultaneously softened. Therefore, a plurality of long root vegetables 17 can be efficiently extracted and harvested by operating the extraction assisting device 22 per time.

9 and 10 show a modification of the extraction assisting device 24 of the fourth embodiment of the present invention, that is, the extraction assisting devices 20 and 22 of the second and third embodiments.
As shown in the plan view of FIG. 9, the pullout assisting device 24 of the fourth embodiment is arranged on both side surfaces in the longitudinal direction of the base body 23 which is longer than that of the third embodiment. A plurality of sets of insertion tubes 5 and 5 similar to the drawing auxiliary device 22 are attached at intervals substantially equal to the planting interval of the long root vegetables 17 and communicated with the internal branch channel 25 at the center of the lower surface of the base 23. The upper ends of a plurality (four) of the insertion tubes 5 facing in the vertical direction are arranged at predetermined intervals in the longitudinal direction so as to be orthogonal to the pair of insertion tubes 5 and 5 facing each other on both sides of the base 23. And detachably mounted. The interval between the insertion tubes 5 adjacent to each other in the central portion is substantially equal to the interval between the insertion tubes 5 and 5 facing each other on both sides of the base 23.
A plurality of discharge holes 10 and 10 are arranged at predetermined intervals in the vertical direction on both side surfaces of the central insertion tube 5 facing the long root vegetables 17.

According to the drawing assisting device 24 of the fourth embodiment, as shown in the enlarged cross-sectional plan view of FIG. 10, the both sides of the base 23 are placed in four places surrounding the plurality of long root vegetables 17 of the planting basket 18. By inserting a pair of four insertion pipes 5, each consisting of a pair of insertion pipes 5, 5 opposite to each other and the insertion pipes 5, 5 adjacent to each other in the center, their discharge holes Since the pressure water 19 can be discharged from four directions toward the long root vegetables 17 from 10, the soil around the plurality of long root vegetables 17 can be simultaneously softened in a short time, and the third embodiment is Compared with the drawing assistance device 22, the drawing operation of the long root vegetables 17 becomes efficient.
In addition, in this 4th Embodiment, although the insertion tube 5 of the center part is shared with respect to the long root vegetables 17 and 17 which adjoin each other, when the planting interval of the long root vegetables 17 is large, each length A plurality of sets of four insertion tubes 5 for each root vegetable 17 may be provided.

FIGS. 11-14 shows the drawing assistance apparatus 27 of the 5th Embodiment of this invention.
The pulling assist device 27 of the third embodiment has a rectangular and thick substrate 29 having a plurality of vertical water supply holes 28 arranged in the circumferential direction in the center, and a packing 30 on the upper surface of the substrate 29. And an upper lid 33 having an upward concave portion 32 on the lower surface facing each water supply hole 28, and a cylindrical insertion tube 34 detachably attached to the lower surface of the base 29. .

  An elbow-shaped water supply pipe 37 to which a flow rate adjustment valve 36 is attached is screwed into the vertical female screw hole 35 formed in the center portion of the upper lid 33, and the water supply pipe 37 includes the flow rate adjustment valve 36 and the same. Pressure water is supplied from a pressure water supply source including the above-described engine pump 13 and the like through the connected hose 12.

The insertion tube 34 includes an inner cylinder 34a and an outer cylinder 34b that surrounds the inner cylinder 34a with a lower end portion of the inner peripheral surface welded to an outer peripheral surface of the lower end portion thereof. Between the outer peripheral surface and the inner peripheral surface of the outer cylinder 34b, an annular water passage 38 is formed that is closed at the lower end and opens upward. The lower end of the outer cylinder 34b is tapered to facilitate insertion into the ground.
In the inner cylinder 34a, a plurality (eight in the embodiment) of discharge holes 39 that communicate with the water passage 38 and that face in the centripetal direction are arranged in rows in the vertical direction at predetermined intervals (see FIG. 14).

  The upper end portion of the insertion tube 34 is fitted in an annular groove 40 formed on the lower surface of the base body 29 and communicating with each water supply hole 28 through packings 41 and 41 while maintaining detachability and watertightness. Then, the tips of the four set screws 42 screwed from the side surface of the base 29 are pressed against the outer peripheral surface of the upper end portion of the outer cylinder 34b to prevent the outer cylinder 34b from coming off. The insertion tube 34 can be replaced with one having different vertical dimensions in accordance with the length of the long root vegetables.

In order to pull out the long root vegetables 17 such as beef bowls, for example, by using the pulling assist device 27 of the fifth embodiment, pressure water is supplied to the annular water passage 38 of the insertion tube 34 as shown in FIGS. In a state where the pressure water 19 is discharged from each discharge hole 39 of the inner cylinder 34 a, the insertion tube 34 is inserted into the ground of the planting basket 18 so as to surround the entire circumference of the long root vegetable 17. At this time, the insertion tube 34 has an inner / outer double tube structure, and the pressure water 19 is discharged from the discharge hole 39 provided in the inner cylinder 34a, so that the insertion tube 34 is inserted into the planting basket 18 before being inserted. Even if pressure water is supplied to the pressure water 19, the pressure water 19 does not scatter around.
Thus, if pressure water is supplied before inserting the insertion tube 34 into the planting basket 18, the pressure water 19 discharged from the discharge hole 39 of each insertion tube 34 is planted around the long root vegetables 17. Since it flows down to the upper part of 18 and penetrate | infiltrates and the soil of the part softens, it becomes easy to insert the insertion tube 34 in the ground.

  The pressure water 19 is continuously discharged from the inner tube 34a of the insertion tube 34 inserted in the ground for a predetermined time, and after confirming that the soil around the long root vegetables 17 has sufficiently softened, the water supply is stopped. Then, after removing the insertion tube 34 from the ground, if the long root vegetables 17 are pulled by hand, this can be easily pulled out.

  In this embodiment, since the soil around the long root vegetables 17 is surrounded by the cylindrical insertion pipe 34, the insertion pipe 34 does not diffuse the pressure water 19 discharged from the inner cylinder 34a over a wide range. The pressure water 19 can be intensively discharged only to the soil around the surrounded long root vegetables 17. As a result, since the soil around the long root vegetables 17 softens in a short time, the drawing operation can be performed efficiently.

  In the extraction assisting device 27 of the fifth embodiment, a plurality of insertion tubes 34 can be attached to the lower surface of the base 29 so that the plurality of long root vegetables 17 can be efficiently extracted. At this time, the base body 29 and the upper lid 33 are elongated in the direction of the planting basket 17, and a plurality of insertion tubes 34 are attached to the lower surface of the base body 29 at predetermined intervals in the same manner as described above. A plurality of insertion tubes 34 may be communicated with each other by a flow path between the upper lid 33 and the upper lid 33 so that pressure water can be supplied to them simultaneously.

  In addition, the insertion tube 34 of the extraction assisting device 27 of the fifth embodiment may be a non-cylindrical shape such as an ellipse or a hexagon instead of a cylindrical shape.

DESCRIPTION OF SYMBOLS 1 Pull-out auxiliary device 2 Base 3 Flow control valve 3a Valve opening / closing handle 4 Elbow pipe 5 Insertion pipe (pipe)
6 Handle 7 Split flow path 8 Female thread 9 Male thread 10 Discharge hole 11 Male thread part 12 Hose 13 Engine pump (pressure water supply source)
14 Water supply hose 15 Water storage tank (pressure water supply source)
16 Opening / closing valve 17 Long root vegetables 18 Planting rod 19 Pressure water 20 Extraction auxiliary device 21 Water supply pipe 22 Extraction auxiliary device 23 Base 24 Extraction auxiliary device 25 Channel 27 Extraction auxiliary device 28 Water supply hole (water supply channel)
29 Substrate 30 Packing 31 Screw 32 Recess 33 Upper lid 34 Insertion tube 34a Inner tube 34b Outer tube 35 Female thread hole 36 Flow rate control valve 37 Water supply pipe 38 Water passage 39 Discharge hole 40 Annular groove 41 Packing 42 Set screw

Claims (7)

It is a method of pulling out long root vegetables planted on the ground,
A plurality of pipes are inserted into the soil surrounding the long root vegetables on the ground, and the pressure water is discharged from the opposing surface across the long root vegetables in this pipe, the soil around the long root vegetables is softened, and its flow A method for extracting long root vegetables, which is characterized in that the long root vegetables are extracted after enhancing the nature. A drawing assistance device used when pulling out long root vegetables planted on the ground,
A base body connected to a pressure water supply source and having a diversion channel for diverting the pressure water supplied from the pressure water supply source in a plurality of directions;
An upper end is connected to the base body so as to communicate with each of the diversion channels, and a long pipe is formed in which a lower end that can be inserted into a plurality of locations on the ground surrounding the long root vegetables is closed, and the long root vegetables are A long root vegetable drawing auxiliary device comprising: a plurality of insertion tubes formed with a plurality of discharge holes capable of discharging pressure water on opposing surfaces sandwiched therebetween.   The long root vegetable extraction assistance device according to claim 2, wherein a plurality of sets of insertion tubes are provided on the base body at intervals substantially equal to the planting interval of the long root vegetables.   4. The long root vegetable extraction assistance device according to claim 2 or 3, wherein a discharge hole is also provided at the lower end of each insertion tube.   A plurality of elbow pipes are detachably attached to the base so as to communicate with the respective flow paths, and an upper end of the insertion pipe is detachably attached to the lower end of each elbow. The long root vegetable extraction assist device according to crab. A drawing assistance device used when pulling out long root vegetables planted on the ground,
A base body connected to a pressure water supply source and having a water passage inside;
An annular water passage having a closed lower end is formed between an inner cylinder having a plurality of discharge holes capable of discharging pressure water and an outer cylinder surrounding the same, and the water supply path and the water passage are formed on the base body. And an insertion tube that can be inserted into the ground so as to surround the entire circumference of the long root vegetable, the upper end portion of which is connected so as to communicate with each other.   The long root vegetable drawing assistance device according to claim 6, wherein a plurality of insertion tubes are provided on the base so as to form an interval substantially equal to a planting interval of the long root vegetable on the ground.

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