JP6709449B1 - Cuttings rooting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To damage the cuttings with low labor for supporting operations of cuttings formed from a tree, a management period for inducing rooting, and a detaching operation from a device after rooting. In addition to being able to perform smoothly, it is highly practical to manufacture a rooting device that can promote rooting of cuttings stably with a high rooting rate and can be easily managed with a simple structure at low cost. To provide a rooting device. SOLUTION: The closed space 12 and the cuttings 100 formed by cutting a branch portion having leaves from a tree of a forestry tree species provided in the closed space 12 are so exposed that they are exposed to the air. A support means for erecting and supporting the spikes 100, including a support means 14 for erecting and supporting a plurality of cuttings adjacent to each other, and substantially the whole of the cuttings 100 supported by the support means 14 including leaves and branches. It comprises a rooting device 10 for cuttings, which includes a sprinkling means 16 for spraying water over the entire cuttings at a predetermined time interval so as to keep the water always attached. [Selection diagram] Figure 1

Description

The present invention relates to a cutting root rooting device suitable for rooting from cuttings formed by cutting branches of a tree when cultivating cuttings.

When planting tree species for forestry such as cedar, cypress, and Chinese fir, cutting tree cultivation technology is used in which branches cut from the tree are used as cuttings and sown on the soil. In afforestation with cuttings, for example, the cuttings formed by cutting branches with leaves from a tree with a length of about 30 to 40 cm are planted on a cutting bed containing cultivated soil until about 40 to 70 cm. In many cases, standardized seedlings are grown and standardized, and the standardized seedlings are transported to a plantation site and planted for planting. Recently, due to the ease with which cutting tree seedlings can be planted in plantations and the efficiency of cultivation management of cuttings tree seedlings, etc., the soil is fixed to the roots of the cuttings and the soil is cultivated so as to be in a root pot. It is recommended to form standard seedlings with root pots, and it is widely used nationwide. When forming a standard seedling with a root bowl of cuttings, for example, the cuttings are planted in the soil such as cutting floor and rooted, and the rooted cuttings are once dug up from the soil, then The cuttings rooted with soil were planted in a predetermined container for raising seedlings and cultivated for a predetermined period. However, with the conventional method of rooting cuttings into the soil, the rooting part of the cuttings is not visible in the soil, so it is not possible to easily grasp the rooting situation, and the After rooting, it is necessary to dig up from the soil, which requires a great deal of labor for the worker. In addition, in an outdoor environment, there are problems such as difficulty in growing and managing the rooting rate due to weather conditions. Particularly in recent years, when the aging of forestry companies is progressing and the shortage of successors is becoming a problem, the heavy labor work for cutting seedling cultivation has become a major issue.

On the other hand, for example, Patent Document 1 proposes a device for rooting a plant in the air without using soil. In Patent Document 1, a closed chamber, a plurality of cutting holding members provided in the chamber so as to hold a rooting portion of a cutting of a plant so as to extend into the chamber, and the inside of the chamber And a device for intermittently spraying an aqueous solution of plant nutrients on the rooting part of the cuttings, and a plurality of cuttings holding members provided in the chamber are provided on a horizontal upper panel. It is a plurality of upwardly formed cylindrical annuli, with a hole provided in the center, and cuttings are inserted into each hole, and the cylindrical annular cuttings holding part forming member holds the cuttings at the top. It has been proposed that the chamber has a rim for use and the boundary between the inner edge of the cylindrical ring and the upper panel is formed in a smooth shape.

Japanese Patent Publication No. Sho 63-501261

However, in the chamber of Patent Document 1, in order to retain the cuttings so as to sprinkle water only on the rooting portion and to prevent foreign matter from entering the chamber, a cylindrical annular cutting holding member. The small hole at the center of the tree has a large branch diameter and a wide variety of branches, such as cuttings formed by cutting from trees such as cedar and cypress, and branches and leaves branched from the side. In the case of cuttings having the above, it was difficult or impossible to smoothly insert the cuttings and support them at a predetermined position. That is, in Patent Document 1, with cuttings having a smaller thickness than the cylindrical annular hole, the cuttings are too loose to support and cannot match the position of the rooting portion of a predetermined depth, For cuttings with a diameter larger than the hole or branches with branched branches at the bottom, it cannot be inserted into the cylindrical annular hole, so it can only be used for cuttings with a specified thickness. Moreover, even if the cuttings have a predetermined thickness corresponding to the hole, there is a high possibility that the insertion operation into a small hole will be troublesome, and the work is complicated and difficult because it is necessary to confirm the insertion depth. there were. At the same time, there is a high risk that the cuttings will be damaged when they are inserted into or removed from the holes of the cuttings holding member, and the cutting depth of each cutting into the cuttings holding member is high. Since it was necessary to insert it while checking, the work was complicated. Further, the device structure including the cylindrical annular chamber having a complicated shape is complicated and the manufacturing cost is high. Furthermore, since the structure is such that water is sprayed only on the rooting part of the cuttings, it is necessary to take additional measures to suppress transpiration from the leaves, so stable and efficient rooting can be expected only with this chamber. However, there is a problem that it is not practical to root the cuttings of trees.

The present invention has been made in view of the above-mentioned conventional problems, and one of the objects thereof is a period of time for supporting operation of cuttings formed from a tree and a period for managing toward root induction, a device after rooting. Each operation such as detachment operation from the plant can be performed smoothly with low labor and without damaging the cuttings, and the rooting of the cuttings can be promoted stably with a high rooting rate and can be easily managed. An object of the present invention is to provide a highly effective pruning rooting device that can be manufactured at a low cost with a simple structure.

In order to solve the above-mentioned problems, the present invention provides a closed space 12 and the entire cuttings 100 formed in the closed space 12 by cutting a branch portion having leaves from a tree of a tree species for forestry into the air. Supporting means for erecting and supporting the cuttings 100 so as to be exposed, and supporting means 14 for erecting and supporting a plurality of cuttings 100 adjacently, and supporting means 14 at a predetermined time interval. The cutting root 100 is provided with a sprinkling means 16 for sprinkling water over the entire cutting 100 and adhering water to substantially the entire cutting 100 including leaves and branches .

Further, the support means 14 is arranged in a large number in a plane and has an insertion opening 20 formed to be larger than the thickness of the branch barrel portion 102 of the cuttings 100, and a state in which the cuttings 100 communicating from the insertion opening 20 to the lower side stand upright. A vertically elongated void 22 having a cross-sectional diameter larger than the thickness of the branch body 102 of the cuttings so that water sprinkled from above on the entire cuttings 100 leaves and branch bodies. A pallet-shaped growing device 24 having a shape may be included.

Further, the pallet-shaped growing device 24 may include a lower end receiving portion 30 that receives the lower end of the cuttings 100 that is supported by the support and is inserted into the vertically long void 22 from the insertion opening 20 and stands up.

Further, the lower end receiving portion 30 may be provided so that the vertical position can be adjusted.

Further, the pallet-shaped growing device 24 may include a perforated net 26 having a large number of insertion openings 20 formed in a plane.

Further, the pallet-shaped growing device 24 includes an insertion opening 28 including a perforated net 26 having a large number of insertion openings 20 formed in a plane, and a lower end receiving portion 30 arranged below the insertion opening 28 at a distance. And a support 32 that supports the entire device in a three-dimensional shape so as to form a vertically long space 22 between the insertion opening 28 and the lower end receiving portion 30.

Further, the pallet-shaped growing device 24 may be composed of a pallet case body 50 having a plurality of cylindrical bodies 46 in which an upper end is opened (20) and an insertion space as the vertically long void 22 is formed.

Further, the cross-sectional diameter P2 of the insertion opening 20 and the vertically elongated void 22 communicating with the insertion opening 20 may be at least three times or more the cross-sectional diameter R of the branch trunk of the cuttings.

In addition, the support means 14 limits the lateral movement of the lower part including the lower end of the cuttings 100 so that the cuttings inserted into the vertically elongated voids 22 through the insertion opening 20 can maintain the correct standing support state. The movement limit mechanisms 52 and 52a that define

According to the cutting rooting device of the present invention, the entire cuttings formed by cutting the branch portion having leaves from the closed space and the trees of the forestry tree species provided in the closed space are in the air. Supporting means for erecting and supporting the cuttings so as to be exposed, including supporting means for erecting and supporting a plurality of cuttings adjacent to each other, and leaves and branches of the cuttings supported by the supporting means. A sprinkling means for sprinkling water over the entire cutting at a predetermined time interval so as to keep water almost always attached to the entire cutting is included in the air without planting the cutting in soil. While supporting it in an exposed state and sprinkling water over the entire cutting, it is possible to induce rooting from the cutting well, and since it is not necessary to use soil, it can be done with low labor and smoothness. It is possible to provide a rooting device capable of stably inducing rooting of rice with a high rooting rate and easily managed. Further, the structure can be manufactured with a relatively simple structure, which is simple and can be manufactured at low cost.

Further, the supporting means are arranged in a large number in a plane, and the insertion opening is formed to be sufficiently larger than the thickness of the branch body of the cuttings, and from the upper side in a state where the cuttings are erected from the insertion opening to the lower side. A three-dimensional pallet shape having a vertically elongated void having a cross-sectional diameter formed sufficiently larger than the thickness of the branch body of the cuttings so that the sprinkled water can be transmitted through the leaves and the entire branch body of the cuttings. By adopting a configuration including a growing device, for example, even if the cuttings of a tree have a certain thickness and branches and leaves extend from the main shaft or have different thicknesses and sizes, the cutting means support means. It is possible to handle the cuttings smoothly and easily without damaging the cuttings by a very simple operation such as a supporting operation to the cuttings and a detaching operation of the rooted cuttings from the supporting means. In addition, water can be surely sprinkled on the entire cuttings, and roots can be satisfactorily rooted from the cuttings.

Further, the support means is a movement that defines a lateral movement limit of the lower part including the lower end of the cuttings so that the cuttings inserted into the vertically long space from the insertion opening and held upright can maintain the correct standing support state. By including the limit mechanism, lateral movement of the lower part of the cuttings can be reliably regulated, the support state by the supporting means can be made more reliable, and the cuttings can be prevented from accidentally falling. , Water can be sprinkled while keeping the cuttings upright, and roots can be satisfactorily rooted from the lower part of the cuttings.

Further, the pallet-shaped growing device is configured to include a lower end receiving portion that is supported by the support and inserted from the insertion opening into the vertically long space to receive the lower end of the standing cuttings, thereby raising the cuttings. The condition can be maintained well, and roots can be well rooted from the lower part of the cuttings.

Further, by configuring the lower end receiving portion so that the vertical height position is adjustable, for example, cutting or inserting cutting of the cuttings into or from the insertion opening, and cutting cutting management work including rooting status. The height of the operator's work can be adjusted in a comfortable position, and the support position of the cuttings can be adjusted and set so that the watering by the sprinkler is at an appropriate position, which enables efficient work and rooting management with low labor. It can be carried out.

In addition, the pallet-shaped growing device is configured to include a perforated net having a large number of insertion openings formed in a plane, so that a supporting means for vertically standing and supporting a large number of cuttings has a simple structure and is low in cost. Can be specifically implemented in. In addition, the lower part inserted from the cutting opening is easily visible from the outside, and it can prevent rot due to stuffiness of cuttings well, including management of rooting conditions and the degree of water droplet adhesion to the entire cuttings. It is easy to manage the condition of cuttings.

In addition, the pallet-shaped growing device includes an insertion opening including a porous net having a large number of insertion openings formed in a plane, a lower end receiving portion arranged at a lower position with a gap, and an intermediate portion between the insertion opening and the lower end receiving portion. By supporting the whole device in a three-dimensional shape so as to form a vertically long void, a supporting means for standing and supporting a large number of cuttings adjacent to each other can be provided with a simple structure at low cost. Can be specifically implemented in. In addition, the lower part of the cutting insert is easily visible from the outside, and the decay of the cuttings due to stuffiness can be prevented well, and the management of rooting conditions and the adhesion of water droplets on the entire cuttings are included. It is easy to manage the condition of cuttings.

Further, the pallet-shaped growing device is configured by a pallet case body having a plurality of cylindrical bodies having an opening at the upper end and having an insertion space as a vertically elongated void formed therein, thereby adjoining a plurality of cuttings. A structure with a pallet-shaped growing device and a movement limit mechanism that can be supported can be manufactured with a simple structure at low cost, and cuttings are inserted into the space divided by each tubular body, It is possible to induce rooting while holding the cuttings in an upright state, which is easy to manage and allows rooting to be performed smoothly.

Moreover, the cross-sectional diameter of the insertion opening and the vertical void communicating with the insertion opening is at least three times or more the cross-sectional diameter of the branch body of the cutting, so that the insertion opening and the vertical void of the cuttings of the tree are formed. The insertion opening and the vertically long voids can be smoothly and easily operated by inserting and supporting the cuttings into the roots and removing the rooted cuttings with extremely simple operations without damaging the cuttings. Can be realized.

It is a schematic explanatory drawing of the cutting rooting apparatus which concerns on the 1st Embodiment of this invention. It is isometric view explanatory drawing of the support means of the cutting rooting apparatus of FIG. It is a principal part explanatory view explaining the state which rooted from the cuttings with the cutting rooting apparatus of FIG. FIG. 3 is an enlarged explanatory view of a main part around an insertion opening of the cutting rooting device of FIG. 1. It is a graph of the rooting rate in the Example which rooted from the cuttings using the cutting rooting apparatus of FIG. It is a schematic explanatory drawing of the support means of the cutting rooting apparatus which concerns on the 2nd Embodiment of this invention. FIG. 7 is a cross-sectional explanatory view of the supporting means of FIG. 6. FIG. 8 is an enlarged explanatory view of a main part around the insertion opening of the supporting means of FIG. 7. It is a schematic explanatory drawing of another Example of the support means of the cutting rooting apparatus of FIG. It is a schematic explanatory drawing of the support means of the cutting rooting apparatus which concerns on the 3rd Embodiment of this invention. FIG. 11 is an enlarged explanatory view of a main part around the insertion opening of the supporting means of the cutting rooting device of FIG. 10.

An embodiment of a cutting rooting device of the present invention will be described below with reference to the accompanying drawings. The cutting rooting device according to the present invention is, for example, a method of cultivating seedlings by cutting various forestry tree species including hardwood such as cedar, cypress, pine, fir and the like, poplar, eucalyptus, etc., A rooting induction device for cuttings or a cuttings cultivation device capable of inducing rooting satisfactorily in a state where the step of rooting from cuttings is exposed to the air without being planted in soil. As shown in FIG. 1, FIG. 2 and FIG. 3, a cutting rooting device 10 according to the present embodiment is configured such that a closed space 12 and cuttings 100 provided in the closed space 12 are erected in the air. Supporting means 14 for supporting and sprinkling means 16 for sprinkling water over the entire cuttings supported by the supporting means are included. That is, in the present embodiment, the cutting rooting device 10 promotes rooting in a state where the cuttings are supported by the support means in the air without using soil. In the present embodiment, the cuttings 100 to be rooted by the cutting rooting device are, for example, forestry tree species such as cedar, cypress, pine, and Chinese fir which are used for forestation and afforestation. Yes, it is formed by cutting a branch part having leaves from a tree that is a parent tree, the length of the cuttings is about 10 to 40 cm, and the thickness of the branch trunk 102 that is the main axis is about 3 to 10 mm. Is set to. It should be noted that the size of the target cuttings may be appropriately set according to the type of tree and other cultivation conditions.

The closed space 12 is an indoor cultivation space that is formed by, for example, a vinyl house 18 or a greenhouse and is closed from the outside air. As shown in FIG. 1, the closed space 12 can form, for example, a cultivation space in which a plurality of cuttings 100 can be installed adjacent to each other, and at least a sprinkling portion of the support means 14 of the cuttings 100 and the sprinkler 16 or the like. Any size may be used as long as it is possible to install the component equipment of. In the closed space 12, for example, a light blocking film 19 having a light blocking rate of about 50% is provided on the top surface side so that sunlight can be blocked to some extent and the cultivation space can be kept dark. The closed space 12 does not need to be airtight, but it is preferable that the closed space 12 is separated from the outside air to the extent that it can block wind and rain and manage temperature and humidity to some extent. Further, the height of the closed space 12 may be arbitrary, for example, it may be provided with a size that allows a person to come in and out, or may be formed with a size that is about the height of the cuttings growing, The plane width may be arbitrarily set according to the number of cuttings managed at the same time.

The support means 14 is provided in the closed space 12 which is a cultivation space, and is a support means for erecting and supporting the cuttings so that the entire cuttings are exposed to the air. As shown in FIGS. 1 and 2, in the present embodiment, the supporting means 14 is provided so that a plurality of cuttings 100 can be stood adjacent to and supported. Specifically, the supporting means 14 is arranged in a large number in a plane and has an insertion opening 20 formed sufficiently larger than the thickness of the branch barrel portion 102 of the cuttings 100, and communicates from the insertion opening 20 to the lower side. It includes a three-dimensional pallet-shaped growing device 24 having a vertically elongated void 22 having a cross-sectional size formed sufficiently larger than the thickness of the branch body 102 of the panicle.

In the present embodiment, the size P1 of the insertion opening 20 is, for example, as shown in FIG. 4, the thickness (that is, the cross-sectional diameter R) of the branch trunk of the cuttings is about 3 to 10 mm. , 30 to 120 mm. That is, the thickness (cross-sectional diameter R) of the branch body of cuttings: the size (P1) of the insertion opening 20 is set to about 1:3 to 1:40 times. The size P1 of the insertion opening 20 is preferably at least three times or more the cross-sectional diameter R of the branch body 102 of cuttings. At the same time, the cross-sectional size of the vertical voids 22 is such that the water sprinkled from above in the state where the cuttings 100 are upright propagates through the leaves and branch trunks of the cuttings so that the branch trunks 102 of the cuttings can be transported. It is formed sufficiently larger than the thickness. Thus, the insertion opening 20 was formed sufficiently larger than the branch body of the cuttings, and at the same time, the cross-sectional size (or cross-sectional diameter) of the longitudinal space 20 was formed sufficiently larger than the branch body of the cuttings. As a result, when water is sprinkled by the sprinkling means 16 to be described later, water is likely to adhere to the entire cuttings, and branches and branches are provided next to the cuttings so that the cuttings have various thicknesses and lengths. When the cuttings of the forestry tree species that are formed are inserted into the insertion opening or pulled out after rooting, do the work smoothly and speedily without damaging the cuttings even with some rough operation. You can The cross-sectional size of the vertically long void 22, that is, the cross-sectional diameter of the vertically long void 22 may be about the same as the size of the insertion opening 20, or may be wide or slightly smaller.

In the present embodiment, the pallet-shaped growing device 24 is disposed below with an insertion opening 28 including a porous net 26 having a large number of insertion openings 20 formed in a plane and a space D with respect to the insertion opening 28. It has a lower end receiving portion 30 and a support body 32 that supports the entire pallet-shaped growing device 24 in a three-dimensional shape so as to form a vertically elongated void 22 between the insertion opening 28 and the lower end receiving portion 30. As shown in FIG. 1 and FIG. 2, the insertion opening 28 is, for example, a thin metal wire in a grid shape so as to form a hole having a gap sufficiently larger than the thickness of the branch trunk of the cutting as described above. Includes a perforated net 26 configured by assembling in a rectangular shape in a plan view. The porous net 26 may be configured, for example, by providing a flat plate or the like with a plurality of insertion openings larger than the branch trunks of the cuttings. Although a plurality of insertion openings 20 are provided by the perforated net 26, for example, a plurality of cuttings may be inserted and supported at adjacent intervals so that the density of the cuttings is about 50 to 500 per square meter.

The lower end receiving portion 30 is supported by, for example, a support for the lower end receiving portion composed of a plurality of support legs 34, and the cuttings 100 that are inserted into the vertically long voids 22 from the insertion openings 20 of the perforated net 26 and stood upright. Receive the bottom edge of. The lower end receiving portion 30 is, for example, a second porous net 36 having a rectangular shape in a plan view and provided in the same manner as the above-described porous net, and is a second porous net supported horizontally by four support legs 34. 36 and a water blocking mat 38 laid on the upper surface side of the second porous net 36 so as to close the holes. In addition, the lower end receiving portion 30 is not limited to the above configuration, and for example, a plate body, a net in which a hole smaller than the thickness of the lower end of the cuttings is formed, a frame or a platform provided in a three-dimensional shape to some extent, Other arbitrary structures such as other combined structures may be used. Further, for example, the support leg 34 may be provided with a retractable structure or a height position for supporting the lower end receiving portion 30 can be changed, so that the lower end receiving portion 30 may be provided with an adjustable vertical height position.

The support 32 installed in the middle of the insertion opening 28 and the lower end receiving portion 30 is, for example, a rectangular parallelepiped block body, and is placed near the four corner positions of the lower end receiving portion 30. A corner position of the insertion opening 28 is placed and supported on the upper end surface of the block body, and a vertically elongated void 22 having a predetermined height is formed between the insertion opening 28 and the lower end receiving portion 30. In the present embodiment, the vertically long void 22 is formed in one continuous space with respect to the plurality of insertion openings 20 of the insertion opening 26. The height of the support 32, that is, the height of the vertically long void 22 is set to, for example, about 10 to 30 cm. Therefore, when cuttings are inserted from the insertion opening 22 in the insertion opening 28 and the lower end receiving portion 30 that are assembled in a three-dimensional shape by the support 32, the cuttings 100 project to a certain degree above the insertion opening 20. Thus, the cuttings are erected and supported so that the intermediate position of the cuttings is received by the perforated net 26. The gap D between the insertion opening 28 and the lower end receiving portion 30, that is, the height of the longitudinal gap 22 is, for example, too small or too large, because the cuttings cannot be supported by standing up. It is advisable to set the height such that the upper end or the intermediate position of the cutting edge can be received by the insertion opening portion and the cuttings can be raised and supported. For example, the length of the portion of the cuttings inserted from the insertion opening 22 into the longitudinal space: the length of the portion protruding upward from the insertion opening is about 1:0 to 1:4, preferably 1: It may be set to about 0 to 1:3.4. The support 32 is not limited to the block body, and may be, for example, a pillar or a net-like frame frame-like support structure that can support the insertion opening from below, or a structure in which the insertion opening is suspended from above. Alternatively, any other structure may be used. Further, in the pallet-shaped growing device 24, for example, a block body or the like is placed on the ground without providing the lower end receiving portion 30, and the insertion opening 26 is installed on the block body to insert the insertion opening 20 into the ground. It is also possible to have a configuration in which the lower end of the cuttings inserted from above is received to stand and be supported. Further, the pallet-shaped growing device 24 may be composed of a pallet case body 50 as in the embodiment described later.

The sprinkling means 18 is provided at a predetermined time interval so as to maintain a state where water is always attached to substantially the entire cuttings 100 including the leaves and branches supported by the supporting means 14 in the closed space 12. It is a watering means that waters the entire ear. In the present embodiment, for example, the water sprinkling means 18 applies high pressure to the water by the water supply pressure-feeding device 40 to pressure-feed the water, and sprays mist-shaped water from the plurality of water sprinkling nozzles 44 connected via the pipes 42 to the cuttings 100. It consists of a conventionally known sprinkler device for spraying towards. The water sprinkling means 18, together with the structure of the insertion opening 22 and the longitudinal void 22 which are sufficiently larger than the thickness of the branch body of the cuttings of the supporting means 14 as described above, sprinkles water over the entire cuttings. In addition, it is designed to make it easy for water to adhere to almost the entire cutting. Rather than simply watering only the roots of the cuttings, it is better to sprinkle the entire cuttings including the leaf branches and keep the water on the entire cuttings. It is known from experiments by the present inventors that the rooting rate can be improved by making it difficult to dry. When water is sprinkled on the entire cuttings, water is attached to the leaves to prevent transpiration, and the water in the cuttings can be retained at all times. It is presumed that rooting can be promoted. It should be noted that, for example, “the entire cuttings” is, for example, a portion of two-thirds or more of the surface area of the cuttings, and the state where water adheres to two-thirds or more of the surface area of the cuttings is maintained. As described above, it is preferable to sprinkle the water with a water sprinkling means. As an example of detailed sprinkling by the sprinkling means 18, for example, in the sprinkler device which is the sprinkling means 18, the particle diameter of the mist-like water sprinkled by each sprinkling nozzle 44 is set to a size of 0.05 m or more to 5 mm or less. It is set so that water of a volume of 0.5 liters to 6 liters per minute can be sprinkled and sprayed on a plurality of cuttings in the range of one sprinkling nozzle. A plurality of water spray nozzles 44 are arranged in parallel with each other so as to spray all cuttings supported by the support means. The installation position of the water spray nozzle 44 is, for example, 30 cm or more and 500 cm or less above the position of the insertion opening 28 of the support means 14 so that water can be sprayed over the entire cuttings. The sprinkling nozzle 44 may be installed on the ground side and sprayed laterally or upward to sprinkle water on the cuttings. Watering by the watering means 18 is, for example, four times a day or more, and intermittently watering for a time of 1 minute to 30 minutes per time. In this way, it is preferable to keep the state in which water is attached to the whole cuttings. Of course, the amount of water sprayed and the number of times of water spray may be appropriately adjusted depending on the environmental conditions including the temperature and humidity in the closed space and other environmental conditions to maintain the adhering state of the cutting water.

Next, the operation of the cutting root rooting device according to the above-described embodiment, an example, and a cutting root rooting method will be described. For example, a branch portion having leaves from a cedar tree, which is a tree species for forestry, is cut to a length of about 30 to 40 cm to form cuttings. The cutting surface of the cuttings may be treated with a chemical agent or the side branch on the base side may be treated appropriately. The cuttings are inserted into the vertically long voids 22 from the insertion opening 20 of the supporting means 14 installed in the closed space 12 formed by a vinyl house or the like, and the cuttings are leaned and supported so as to be in a substantially vertical state. In this supporting operation, since the insertion opening and the vertically long gap are set to have a size sufficiently larger than the cuttings, the cuttings can be supported smoothly and speedily without being damaged. While the cuttings are supported by the supporting means 14, the sprinkling means 18 repeats watering at predetermined time intervals so that the water is always adhered to substantially the entire cuttings by the sprinkling means 18. , Induce rooting. By keeping the cutting water adhering to the cuttings at all times, the roots are rooted from the lower side of the cuttings 100, for example, in about 2 to 4 months, as shown in FIG. Since the whole cuttings are exposed in the air, the rooting condition can be visually and easily confirmed. The cuttings rooted by the rooting device of the present embodiment are pulled out from the insertion opening 20 and, for example, planted in a cultivation space in which soil is put in a predetermined seedling-growing container to obtain a regular seedling in a root pot state. It shifts to the manufacturing process. Even when the cuttings are pulled out, the insertion opening and the vertical gap are set to a size that is sufficiently larger than the cuttings, so it is difficult to damage the branches and roots of the cuttings, and with low labor, smooth and speedy. It can be carried out. In this way, in the cutting root rooting device of the present embodiment, the cuttings formed by cutting from the tree are always planted in the soil without being planted in the soil, and are always supported in the state of being exposed and supported in the air. By controlling by sprinkling water so that water adheres to almost the entire panicle, rooting can be induced well.

Next, an example in which cuttings are rooted by using the cuttings rooting device according to the present embodiment will be described. For 15 types of sugi cultivars having different rooting rates (strain name clone A to clone O), the rooting condition when rooting was induced using the cutting root rooting device of this embodiment was observed for 4 months. Then, the rooting rate of cuttings using a rooting device was compared with the rooting rate of cuttings when rooting was done by planting cuttings on a medium in the open field as in the past. In the cutting rooting device of the present embodiment, the closed space is formed by a triangular roof type vinyl house that forms a space having a horizontal size of about 2510 cm×825 cm in length×width and a height of 210 cm to 400 cm. did. During the observation period, the average temperature in the closed space was 23.9 degrees and the average humidity was 94.0%. The cuttings are inserted into a large number of insertion openings of the porous net of the supporting means and supported so that 20 cuttings per 52 cm×33 cm (the cutting density is about 115 per square meter). The amount of water sprayed onto the cuttings by the watering means was about 1 liter/m ² per minute for each watering, and the watering was repeated for about 3 minutes 17 times a day. FIG. 5 shows a comparative graph of the rooting rate after 4 months when rooting induction of cuttings of each sugi cultivar was carried out for 20 plants under the above settings. That is, rooting rate=number of rooted cuttings/total number of observed cuttings (20). As shown in the graph of FIG. 5, in all sugi cultivars, the rooting rate of the rooting device of the example is higher than the rooting rate of the open field cultivation of the comparative example. It can be seen that the rate of root induction of cuttings can be achieved. In this example, it was confirmed that the rooting rate of the 15 sugi cultivars using the rooting device of the present invention was higher than that of the open-field cultivation, but other forestry tree species such as cypress and Chinese fir It has been confirmed by experiments that the roots can be satisfactorily rooted. Coniferous trees such as pine and broad-leaved trees such as poplar and eucalyptus are also presumed to be capable of rooting as well as the above-mentioned cedars using the cutting root rooting device of the present embodiment. It can be expected to be used practically for inducing rooting of cuttings of various trees including.

Next, a second embodiment of the cutting rooting device of the present invention will be described with reference to FIGS. 6, 7, and 8. The same components and members as those in the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted. Similar to the above embodiment, the cutting rooting device of the present embodiment includes a closed space 12, a supporting means 14, and a sprinkling means 16. In this embodiment, compared with the above-described embodiment, the closed space 12 and the sprinkling means 16 have the same configuration, but the support means 14 has a different configuration. 6, 7, and 8 show the structure of the supporting means 14. As shown in FIGS. 6 and 7, the supporting means 14 includes a pallet-shaped growing device 24b. In the present embodiment, the pallet-shaped growing device 24b has an upper end opened and an insertion space as a vertically elongated void 22 inside. The pallet case body 50 has a plurality of formed tubular bodies 46. The pallet case body 50 is formed of, for example, a synthetic resin such as plastic, and connects the upper end sides to each other via a connecting portion 48 provided so as to project like a flange from the opening of each tubular body 46. Are provided integrally. Each cylindrical body 46 has an opening at the upper end as an insertion opening 20, and is provided in a tapered shape with a cross-sectional diameter decreasing toward the lower end, and an internal insertion space communicating with the opening is a vertically long void 22. The cylindrical body 46 has, for example, a hole (not shown) through which water can pass at the bottom so that water does not accumulate in the vertically long void 22, and the cuttings are exposed to the air. Can be supported while holding. In each of the tubular bodies 46, for example, vertically long slits or holes may be formed in the side wall in order to improve water permeability and air permeability. The size of the hole at the bottom of the tubular body is set to a size that does not allow the branches of the cuttings to pass through, and the bottom has a lower end receiving portion 30 that receives the lower end of the cuttings. There is. Furthermore, since the tubular body 46 separates the vertically elongated void 22 by the side wall, the bottom portion and the sidewall cooperate with each other to extend in the lateral direction of the lower side including the lower end of the cuttings inserted into the vertically elongated void 22. Can regulate the movement limits of. That is, the tubular body has the lower end receiving portion 30 constituted by the bottom portion continuously provided on the side wall, and the supporting means 14 having the lower end receiving portion 30 is inserted into the vertically long space 22 from the insertion opening 22. It includes a movement limit mechanism 52 that defines a lateral movement limit of the lower part of the cutting including the lower end of the cutting 100 so that the standing cutting 100 can maintain the correct standing support state. As shown in FIG. 8, in each tubular body, the size of the insertion opening 22 is set to be three times or more the cross-sectional diameter R of the branch body 102 of the cuttings. At the same time, the cross-sectional diameter P2 of the vertically elongated void 22 communicating with the insertion opening 22 is also set to be at least three times or more the cross-sectional diameter R of the cutting branch body 102. Also in the present embodiment, as in the above-described embodiment, it is possible to induce rooting satisfactorily while sprinkling water in a state of being exposed to the air without planting cuttings formed by cutting from a tree in soil. It is possible to obtain the action and effect.

Further, FIG. 9 shows another embodiment of the mode in which the pallet-shaped growing device 24 constituting the above-mentioned supporting means 14 has the pallet case body 50. In the example of FIG. 9, in the pallet case body 50, for example, the bottom portion of each tubular portion 46 is formed with an opening having a diameter larger than the thickness of the branches of the cuttings 100. At the lower end of the pallet case body 50, there is a bottom wall that is larger than the plane area of the pallet case body and has a water-passing function by penetrating a large number of holes having a diameter smaller than the thickness of the branches of cuttings. A container 54 having a hole formed and having an upper surface opened is installed. Therefore, the pallet-like growing device 24 of the supporting means 14 is configured by mounting the pallet case body 50 on the bottom wall of the holed container 54 and assembling the bottom wall of the holed container 54. Constitutes a lower end receiving portion 30 for receiving the lower end of the. Furthermore, in the present embodiment, the plurality of pallet-shaped growing devices 24 are arranged in a step-like manner at a plurality of positions with different vertical heights via the shelf device 60. In the shelving device 60, for example, a plurality of (three in FIG. 9) shelving members 58 are fixed at positions where the upper and lower intermediate positions of the columns 56 are different, and the above-mentioned pallet-like shape is provided on each shelving member 58. A growing device 24c is installed. That is, in the present embodiment, the supporting means 14 includes a plurality of pallet-like growing devices 24 and a shelving device 60 that arranges the pallet-like growing devices 24 in a vertically stacked manner. The shelf member 58 is formed of a porous net so that water can pass vertically. When water is sprinkled from above by the sprinkler while the pallet-like growing devices 24c are arranged in a plurality of stages of the shelf device 60 in this manner, all the pallet-like growing devices 24 from the uppermost stage to the lowermost stage are supported. It is possible to induce rooting while effectively sprinkling water on the panicle. Further, in the example of FIG. 9, the shelf member 58 is provided so that the height position where it is fixed to the support column 56 is adjustable, and the pallet shape is adjusted according to the number of pallet-shaped growing devices, the height of cuttings, and the like. It is provided so that the vertical height position of the lower end receiving portion 30 of the growing device can be adjusted. In the embodiment of FIG. 9, by arranging the supporting means for supporting a plurality of cuttings vertically in a three-dimensional arrangement, the cuttings of roots to be simultaneously rooted per unit area are more than those of the above embodiment. It is possible to install a larger amount, which improves rooting efficiency and improves management convenience.

Next, a third embodiment of a cutting rooting device of the present invention will be described with reference to FIGS. The same components and members as those in the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted. Similar to the first embodiment, the cutting rooting device of the present embodiment includes a closed space 12, a supporting means 14, and a sprinkling means 16. In this embodiment, compared with the above-described embodiment, the closed space 12 and the sprinkling means 16 have the same configuration, but the support means 14 has a different configuration. 10 and 11 show the configuration of the main part of the supporting means 14. In this embodiment, as shown in FIGS. 10 and 11, the supporting means 14 includes a pallet-shaped growing device 24 having substantially the same configuration as that of the first embodiment. However, the pallet-like growing device 24 has, for example, an insertion opening. It has a movement restricting net 39 disposed at a vertically intermediate position between the lower end receiving portion 30 and the perforated net 26 in which the insertion opening 20 which is the portion 28 is formed. Note that, in FIG. 10, the movement restricting net 39 shows only the outer contour line, and a large number of inner meshes are omitted. The movement restricting net 39 is formed by assembling thin metal wires in a grid shape in a rectangular shape in a plan view so as to form an opening 41 which is substantially larger than the thickness of the branch trunk of the cuttings in substantially the same manner as the porous net 26. It consists of a structured porous net. The movement restricting net 39 is arranged in parallel with the perforated net 26, and a large number of openings 41 formed in the net 39 are located at the same positions as the insertion openings 20 of the perforated net 26 above in plan view. The openings 20 and 41 are set so as to communicate with each other in a substantially straight line in the vertical direction. As a result, as shown in FIG. 11, the branch body 102 of the cuttings inserted into the gap 22 from the insertion opening 20 is for movement restriction at an intermediate position between the insertion opening 20 and the lower end receiving portion 30. The opening frame portion of the net 39 restricts the lateral movement of the net 39 to define the lateral movement limit of the lower portion including the lower end of the cutting, and the correct standing support state of the cutting is maintained. That is, the movement restricting net 39 constitutes a movement limit mechanism 52a which is located above the lower end receiving portion 30 and which can regulate the lateral movement limit of the lower side inserted from the cutting opening. For example, the movement restricting net 39 is configured such that the corner part of the movement restricting net 39 is placed on the lower support 32a in the shape of a rectangular parallelepiped block provided at the corner of the lower end receiving part 30 to receive the lower end receiving part. It is supported above the portion 30. Further, a rectangular parallelepiped block-shaped upper support 32b is placed on the corner of the movement restricting net 39 so as to sandwich and fix the corner, and a porous net is placed on the upper support 32b. The corners of 26 are placed, and the perforated net 26 is supported above the movement restricting net 39. In the present embodiment as well, as in the above-described embodiment, it is possible to induce rooting satisfactorily while sprinkling water in a state of being exposed to the air without planting cuttings formed by cutting from a tree in soil. It is possible to obtain the action and effect. In addition, in the present embodiment, the net 39 surely regulates the lateral movement of the lower part of the cuttings to make the supporting state of the supporting means more reliable, and to prevent the cuttings from accidentally falling. Therefore, rooting can be satisfactorily rooted while keeping the cuttings upright.

The cutting rooting device of the present invention described above is not limited to the configuration of the above-described embodiment only, and any modification is possible within the scope not departing from the essence of the present invention described in the claims. You may go.

The rooting device for cuttings of the present invention is used for cutting and planting cuttings for forestry tree species, including conifers such as cedar, cypress, pine, and ginseng, and broadleaf trees such as poplar and eucalyptus. It can be suitably used in the root step.

10 Cutting Root Rooting Device 12 Closed Space 14 Supporting Means 16 Sprinkling Means 20 Inserting Opening 22 Vertically Long Void 24 Pallet-like Growing Device 26 Perforated Net 28 Inserting Opening 30 Lower End Receiving 32 Supporting Body 34 Supporting Leg 46 Cylindrical 50 Pallet-shaped case body 52, 52a Movement limit mechanism

Claims (9)

Closed space,
A support means for standing and supporting the cuttings so that the entire cuttings formed in the enclosed space by cutting the branches having leaves from trees of forestry tree species are exposed in the air. A support means for vertically supporting a plurality of cuttings adjacent to each other,
A sprinkling means for sprinkling water over the entire cuttings supported by the supporting means at a predetermined time interval so that water adheres to substantially the entire cuttings including leaves and branches , Rooting device. The supporting means has a large number of insertion openings arranged in a plane and formed to be larger than the thickness of the branch body of cuttings,
It was formed to be larger than the thickness of the branch body of the cuttings so that the water sprinkled from above with the cuttings communicating from the insertion opening to the lower side is transmitted through the leaves and the trunk of the cuttings. The cutting rooting device according to claim 1, comprising a three-dimensional pallet-shaped growing device having a vertically elongated void having a cross-sectional diameter. Palletized growing apparatus, the cuttings of claim 2, wherein the from the support has been the insertion opening in the support member including a lower end receiving portion for receiving the lower end of the cuttings erected pledged in longitudinal gap Rooting device. 4. The cutting rooting device according to claim 3, wherein the lower end receiving portion is provided so that the vertical position can be adjusted. The cutting rooting device according to any one of claims 2 to 4 , wherein the pallet-shaped growing device includes a perforated net having a large number of insertion openings formed in a plane. The pallet-shaped growing device has an insertion opening including a porous net having a large number of insertion openings formed in a plane,
A lower end receiving portion arranged below the insertion opening portion with a space,
The support according to any one of claims 2 to 5 , further comprising: a support body that supports the entire device in a three-dimensional shape so as to form a vertically elongated void between the insertion opening and the lower end receiving portion. Ear rooting device. The palletized growing apparatus according to any one of claims 2, characterized in that it consists of a pallet case body having a plurality of tubular bodies forming the insertion space as elongated voids inside opening in the upper end 5 Rooting device for ears. Cross-sectional diameter of the elongated gap which communicates with the insertion opening and insertion opening to claims 2, characterized in that at least three times or more with respect to the cross-sectional diameter of Edado of cuttings 7 according to any one Cutting root rooting device. The support means is a movement limit mechanism that defines a lateral movement limit of the lower part including the lower end of the cuttings so that the cuttings inserted from the insertion opening into the vertically elongated space can maintain the correct standing support state. The cutting rooting device according to any one of claims 1 to 8, further comprising:

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