JP5022061B2 - Plant seedling short-term growing tools and methods, plant seedling set for planting, and planting method - Google Patents

Description

  The present invention relates to a growing tool capable of growing plant seedlings in a short period of time, a short-term growing method using the tool, a plant seedling set for planting, and a seedling method using the plant seedling set. In more detail, the present invention can be applied to planting seedlings in areas where plant growth is difficult, such as dry land, cold regions where the soil surface is frozen, and salt accumulation regions where salt is accumulated on the soil surface. The present invention also relates to a short-term growing tool that can be grown in a short period of time, a short-term growing method using the tool, a plant seedling set for permanent planting, and a seedling method using the plant seedling set.

  As is well known, the moisture content in the ground in dry land is very small compared to the moisture content in other zones where greening is easy. For example, as a result of measuring the moisture content in soil in Nigeria, Africa, in 2000 with respect to soil depth, a relatively stable moisture content was observed at a depth of 30 cm or more, compared to the fact that the soil surface has almost no moisture content. It was. Thus, the survival of plants in dry land depends on how fast roots can reach this deep layer of stable water content.

  Moreover, in the salt accumulation soil widely distributed in the world, it is often that a relatively shallow portion of the soil (from the surface to a depth of 20 to 30 cm) contains a large amount of salt, and the moisture content of the portion is high. Even if it is the quantity which enables plant growth, the growth will be inhibited by the salt.

  Conventionally, as a technique for growing a plant in the dry zone as described above, for example, a structure as shown in FIG. 5 (Patent Document 1) or a structure as shown in FIG. 6 (Patent Document 2) is used. It has been proposed.

  The plant growth method using the structure shown in FIG. 5 is as follows. That is, after mounting the outer cylinder member 1 in the space X having a required cross-sectional area and depth formed by excavation, and filling the outer cylinder member 1 with soil S1 containing a water retaining material, the center portion thereof After placing the inner cylinder member 2 filled with soil S2 for vegetation containing a water retention material in the gap formed in the water, irrigating each soil S1, S2, and holding the sufficient water in the existing water retention material, Planting seedlings or seedlings in the soil S2 in the inner cylinder member 2 and blocking the outflow of moisture in the soil S1 to the outside of the outer cylinder member 1 by the outer cylinder member 1, and the inside of the inner cylinder member 2 by the soil S1 The soil S2 is insulated from the geothermal heat, and the plant is grown while keeping the soil moist by preventing the soil from being cooled and dried.

  In addition, as measures against drying and salinity, efforts are made to increase the fixing rate by selectively using plant species having drought resistance and salt resistance. Furthermore, even in a region of dry soil with a lot of salt, when there are abundant water sources nearby, attempts have been made to wash away the salt from the soil using the water.

  Moreover, when using a seedling as a form of the growing plant, the seedling is currently produced by pot cultivation or outdoor cultivation.

  6 includes a cylindrical outer layer 5 formed of a biodegradable material, a cylindrical intermediate layer 6 having water retention and water absorption, and an inner layer 7 made of soil mixed with fertilizer. It is configured. The upper surface and the lower surface of the intermediate layer 6 are covered and protected by a thin disc-shaped upper lid 8 and lower lid 9 made of the same material as the outer layer 5.

  A method for growing plants on dry land, dunes, deserts, etc. using the structure shown in FIG. 6 is to first connect a plurality of soils to a length that reaches the soil base having underground water at the bottom of the sandy land such as a desert. Boring is embedded and seeds or seedlings are planted in the inner layer 7. After seedling establishment, about 1 liter of water is poured once every 30 days until the roots reach the soil base.

JP 2000-032840 A Japanese Patent No. 3811801

  By using the technique described in Patent Document 1, high water retention and inhibition of root elongation due to high temperature can be suppressed. However, since the technique described in Patent Document 1 has a complicated structure and a complicated work such as replenishment of a water retaining material to a culture medium, a great amount of labor is required for a series of operability. Moreover, since continuous water supply to the plant has to be performed by drip irrigation etc., there are further improvements such as loss of water due to evaporation although it is small.

  In addition, the dry land planting measures that use plant species that are strong in salinity are actually very high in salinity, and even if plant species that are strong in salinity are used, there is a high possibility that biological damage will occur. Difficult to fix.

  In addition, the method for washing and removing the salt in the soil used when there are abundant water sources nearby is not practical because such a water source cannot be secured in dry land.

  Further, in pot cultivation and open field cultivation used as a method for preparing seedlings used for fixed planting, the seedling raising period is long.

  The structure disclosed in Patent Document 2 is directly embedded in sand such as dry land that is difficult for plant seeds and seedlings to settle. After the implantation, plant seeds or seedlings are planted in the inner layer 7. Then, water is supplied from above the structure to replenish water to the plant seedling. The inner layer 7 is soil mixed with fertilizer, and when it contains moisture, it becomes a nutrient source for plants and a supply source of moisture.

  According to the experiments by the present inventors, when a plant is grown using the structure and plant fixing method disclosed in Patent Document 2, it reaches underground water at a depth of 30 cm or more from the surface of the sand. Until then, plant roots could not be grown. When the cause was sought, the inner layer 7 where plant seedlings are planted contains fertilizer and given sufficient moisture, so the plant has many short roots that branch off to obtain nutrients and moisture from the inner layer 7 It has been found that long roots do not grow until reaching underground water located below 30 cm. Therefore, according to the structure and the plant fixing method disclosed in Patent Document 2, it is difficult to fix a plant on a dry land, and even if possible, it takes a long time for fixing, and during that time, water is constantly poured. As a result, the amount of water required for establishment becomes enormous, and the planting business is forced to fail in terms of cost.

  On the other hand, the present inventors have made it difficult to use the water on the soil surface such as dry land, cold region, and surface salt accumulation area (it is difficult to secure the water necessary for plant growth) in the local soil. In order to establish a technology that can plant seedlings smoothly and establish seedlings and grow them without needing to artificially replenish water in a fixed planting area, intensive studies, experiments, and examinations are repeated. It was.

  As a result, before planting in an actual plantation site such as a desert, as shown in FIGS. The artificial soil has a hardness that allows the plant seedling 11 to be fixed inside the upper opening 10a of the cylindrical body 10 and to increase the growth rate of the root of the plant seedling 11 below the inside of the cylindrical body 10. It has been found that a plant seedling 11 having a long root 11a can be obtained by filling the growth material 12 such as the above and promoting the growth of the root of the plant seedling 11 downward of the cylindrical body 10. The hardness of the growing material 12 may be set to be equal to or lower than the soil hardness of the fixed plantation where the plant seedling after growing is to be fixed. Preferably, the growing material 12 does not fall off the inner wall 10b of the cylindrical body 10. It is better to fill it as low as possible. And since hydration does not perceive the necessity that the root of a plant extends long downward according to the water injection from the upper part of the growth material 12, only the lower end part of the cylinder 10 is immersed in water intermittently so that the plant seedling It has also been found that if a load is applied to 11 to sense the necessity of extending the root downward, the growth of the long root 11a can be realized. In addition, when water is poured onto the growth material 12 in the cylinder 10 from above the cylinder 10, the growth material filled in the cylinder 10 at a low density is likely to drop off. It was confirmed that water replenishment utilizing the water absorption of the material of the cylinder 10 and the growth material was preferable from the bottom.

  As described above, if the long root 11a grows until it reaches the lower end of the cylindrical body 10 and further extends downward from the lower end of the cylindrical body 10, the long root 11a is The plant seedlings are transported to the planting site together with the cylinder 10 that supports the growth, and are inserted into the bored hole (arriving at the underground hydrous layer) of the planting site together with the cylinder 10 and embedded. At the time of embedding, the long roots 11a of the plant seedlings 11 accommodated in the cylinder 10 immediately come into contact with groundwater suitable for plant growth and begin to absorb moisture. As a result, the establishment rate of the planted plant is greatly improved, and water injection from the ground surface is almost unnecessary, so that the cost for subsequent plant growth can be greatly reduced.

  The inventors of the present invention integrally integrate a cylinder (short-term growth tool) in which a growing material is filled with a predetermined hardness, a plant seedling having a long root grown in the cylinder, and the cylinder. By distributing the plant as a plant seedling set, the plant seedling can be transported to a planting site in the desert without damaging the plant seedling, and planting (planting) on the planting site can be performed easily. It was confirmed at the medium-scale production level that the fixing rate can be remarkably improved.

  After establishing such a series of techniques, that is, a plant root short-term growing tool, a growing method, a plant seedling set, and a planting method for obtaining a plant seedling having a long root that can be established in a fixed planting site, the present invention They decided to consider application to regions under more severe geological conditions.

  As a result, there are areas where the underground hydrous layer containing good-quality moisture is deeper than 1.5 m, and in order to establish plants in such areas, the long roots are close to 1.5 m, preferably 1 It has been found necessary to grow to a length exceeding 5 m. In order to cope with this, when the length of the cylindrical body was set to a length exceeding 1.5 m, a new problem that the growing material in the cylindrical body easily dropped off occurred. Dropping of the growth material in the cylinder can be prevented by increasing the packing density and increasing the hardness of the growth material. However, it has been found that when the hardness of the growth material in the cylinder is increased, the growth of long roots is remarkably inhibited, and in some cases, the growth ends only by growing a large number of short roots.

  In addition, the length of the cylinder exceeds 1.5 m. Compared with the growth of a cylinder of about 30 to 50 cm until the root of the plant seedling grows in the 1.5 m long growth material and reaches the lower end. Then, the number of times of irrigation increases remarkably. Irrigation is performed by immersing the lower part of the cylinder in water intermittently. Therefore, in order to grow to a long root exceeding 1.5 m, the total time of the immersion in the lower part of the cylinder is long. As a result, the lower part of the cylinder obtained mainly by compression molding of plant fibers such as paper swells, and the strength of the cylinder deteriorates to the extent that the shape cannot be maintained. Thus, until the long root of a plant seedling is grown to 1.5 m, the strength of the cylinder cannot be maintained, and from this point, it becomes difficult to grow a plant seedling having a long root of 1.5 m. There was found.

  The present invention has been made in view of the above circumstances, and its problem is that it is a long length suitable for planting in an area where an underground hydrous layer containing good-quality moisture is 1 m deeper than the ground surface, and further 1.5 m deeper or deeper. An object of the present invention is to provide a plant seedling growing tool and a growing method for plant seedling that can grow a plant seedling having a root, a plant seedling set for planting, and a planting method.

In order to solve the above-described problem, the plant seedling short-term growing device according to claim [1] of the present invention is a plant seedling short-term plant for obtaining a plant seedling having a long root that can be established in a fixed planting area. A growth tool, comprising a cylinder filled with a growth material for the plant seedling, and an inclination fixing means for inclining and fixing the cylinder at a predetermined angle, the growth material being the cylinder It is characterized in that it is adjusted to a hardness that makes it possible to increase the downward growth rate of the roots of plant seedlings fixed inside the upper opening of the body.

  The plant seedling short-term growing tool according to claim [2] of the present invention is the plant seedling short-term growing tool according to claim 1, wherein the inclined fixing means supports the inclined surface that supports the entire side surface of the cylindrical body. It is characterized by having.

  The plant seedling short-term growing tool according to claim [3] of the present invention is the plant seedling short-term growing tool according to claim 1, wherein the upper side surface of the cylindrical body can be opened and closed. It is characterized by that.

  The plant seedling short-term growing tool according to claim [4] of the present invention is the plant seedling short-term growing tool according to claim 2, wherein the cylindrical body is a half-shaped cylindrical body. A lid member is detachably attached to the opening of the first and second openings.

  The plant seedling short-term growing tool according to claim [5] of the present invention is the plant seedling short-term growing tool according to any one of claims 1 to 4, wherein the hardness of the growing material is after growing. It is less than the soil hardness of the fixed plantation which is going to fix the said plant seedling.

  The plant seedling short-term growing tool according to claim [6] of the present invention is the plant seedling short-term growing tool according to any one of claims 1 to 5, wherein the growing material is soil, sand, It is at least one selected from the group consisting of gravel and soil substitutes.

  The plant seedling short-term growth tool according to claim [7] of the present invention is the plant seedling short-term growth tool according to any one of claims 1 to 6, wherein the cylinder has water permeability. It is characterized by.

  The plant seedling short-term growth tool according to claim [8] of the present invention is the plant seedling short-term growth tool according to any one of claims 1 to 7, wherein the cylinder has water retention. It is characterized by.

  The plant seedling short-term growing device according to claim [9] of the present invention is the plant seedling short-term growing device according to any one of claims 1 to 8, wherein the cylindrical body has air permeability. It is characterized by.

  The plant seedling short-term growth tool according to claim [10] of the present invention is the plant seedling short-term growth tool according to any one of claims 1 to 9, wherein the cylindrical body is made of a biodegradable material. It is configured.

  The short-term growing method of a plant seedling according to claim [11] of the present invention is a long length that can be fixed in a fixed planting area using the short-term growing tool for plant seedling according to any one of claims 1 to 10. A method for short-term growth of a plant seedling to obtain a plant seedling having a root, wherein the plant seedling is fixed in the growing material inside the upper opening of the cylinder fixed at a predetermined angle by the inclination fixing means, The plant seedling having the long root is obtained by growing the root of the plant seedling downward in the cylinder.

  A short-term growing method for plant seedlings according to claim [12] of the present invention is the short-term growing method for plant seedlings according to claim 11, wherein the cylinder fixed at a predetermined angle by the tilt fixing means is used. Water is poured into the lower part of the cylindrical body in a fixed state, and moisture is supplied to the growing material inside through the material of the cylindrical body.

  The method for short-term growth of plant seedlings according to claim [13] of the present invention is a plant having long roots that can be fixed in a fixed plantation using the plant seedling growth equipment according to claim 3 or 4. A short-term growth method for plant seedlings for obtaining seedlings, wherein the cylinder fixed at a predetermined angle by the inclination fixing means is opened, the upper side of the cylinder is opened, and moisture is directly applied to the internal growth material. It is characterized by supplying.

  The plant seedling set for planting according to claim [14] of the present invention has a long root reaching the lower end of the short-term growing tool in the short-term growing tool according to any one of claims 1 to 10. Contains plant seedlings.

  The plant seedling set for planting according to claim [15] of the present invention is the plant seedling set for planting according to claim 14, wherein the plant seedling having the long root is any one of claims 11 to 13. The plant is grown by the method for short-term growth of plant seedlings described in item 1.

  In the planting method according to claim [14] of the present invention, a method for planting seedlings in a fixed planting site is excavating a vertical hole in the ground of the fixed planting plant up to a hydrous layer having a quality and amount of water necessary for plants to grow, A planting seedling set for planting according to claim 14 or 15 is embedded in the vertical hole to plant a seedling in a planting site.

  A plant seedling short-term growing tool, a short-term growing method, a planting seedling set for planting, and a planting method in a planting site according to the present invention have long roots having a length in the vicinity of 1.5 m or exceeding 1.5 m. Plant seedlings can be grown in a short time and efficiently. Moreover, since the long roots can be transported while being protected by the cylinder, after the long roots are grown in a suitable place for cultivation before being embedded in the ground, the obtained plant seedlings are transferred to a remote area. Can also be easily supplied. The plant seedlings transferred to the planting site are inserted into the ground together with the cylinder and the growing material according to the planting method in the planting site of the present invention, in other words, the plant seedling set for planting of the present invention is put into the ground. By inserting, the tip of the long root reaches the soil layer or groundwater flow with the water quality and water volume necessary for plant growth, so that the plant can be set as a planting site without actively supplying water. It can be fixed. In addition, the cylindrical body is constituted by a stack of a plurality of short cylindrical bodies, and the growing material has a hardness that enables increasing the growth rate of the roots of the plant seedlings to the inside of each short cylindrical body. By filling the plant, healthy seedlings can be grown in a short period of time, and by raising seedlings in the cylinder, the amount of water evaporation can be reduced, greatly reducing the amount of water required for growth. Is possible.

  As described above, the seedling growing technique according to the present invention is different from the conventional technique in that the seedling having a long root with a length of about 1.5 m or more is fixed to the cylinder in an inclined state. Do it. Therefore, it is possible to prevent the growth material from falling off within the cylinder, and to suppress deterioration of the cylinder due to irrigation, and to reliably grow plant seedlings having a long root exceeding 1.5 m. Can do. Furthermore, according to the present invention, after growing a long root, the plant seedling is planted in a planting site, so that the planting of the seedling can be performed reliably, and the fixing rate can be increased. Thus, according to the present invention, even in dry or cold areas, where the soil surface is generally not suitable for plant growth, for example, soil contaminated with salt, etc. Even if there is no hydrated layer up to the deepest depth, even if it is deeper, if there is a hydrated layer with water suitable for plant growth underground, greening can be easily carried out.

  Hereinafter, examples of a plant seedling short-term growing tool and a growing method, a planting seedling set for planting, and a planting method in a planting site according to the present invention will be described in detail with reference to the drawings. In addition, the Example shown below is only the illustration for demonstrating this invention suitably, and does not limit this invention at all.

  FIG. 1 is a diagram for explaining a first embodiment of the present invention and is a diagram showing a configuration of a plant seedling short-term growing tool according to the present invention. The purpose of this short-term growing tool is that in areas where it is difficult to grow plants such as dry land, salt is often present in the shallower layers from the surface of the earth, and also contains salt. When water is used for irrigation, salt accumulation occurs, and the amount of water necessary for plant growth can only be reached through deep soil layers, so it is possible to reach such soil layers. The goal is to grow plant seedlings with long roots. In particular, long roots with a length exceeding 1.5 m can be used, even if there is no soil layer containing good-quality water near 1.5 m or depth exceeding 1.5 m. It is a tool for short-term cultivation of plant seedlings that can be grown.

  For this purpose, this short-term growing tool has a cylindrical body 10 filled with a growth material 12 for plant seedlings, and an inclination fixing means 20 for inclining and fixing the cylindrical body 10 at a predetermined angle. Do it.

The cylinder 10 is formed to have a length exceeding 1.5 m, and the growing material 12 filled inside is below the root of the plant seedling 11 to be fixed inside the upper opening of the cylinder 10. It is packed to a density that maintains the hardness that allows the growth rate to increase. The hardness of the growing material 12 in the cylindrical body 10 is adjusted to be equal to or lower than the soil hardness of the fixed plantation. When the hardness is expressed by a known dry density, in soybean, when the fixed soil hardness is 1.5 Mg · m ⁻³ , if the soil hardness is adjusted to 1.35 Mg · m ⁻³ , the elongation rate below the roots is increased. (as compared with the planting soil hardness (= 1.5Mg · m ^-3)) may be increased to more than double, by adjusting the soil hardness below 0.5Mg · m ^-3, downward roots Can be increased 5 times or more (compared to the case of fixed soil hardness (= 1.5 Mg · m ⁻³ )). That is, the hardness of the growing material 12 in the cylinder 10 is preferably as low as possible.

  In order to achieve the object of reducing the hardness of the growing material 12 as much as possible, in the present invention, the cylindrical body 10 is inclined by 30 to 75 degrees by the inclination fixing means 20 and fixed at that angle. When the inclination angle is 30 degrees or less, which is the lower limit value, the downward extension of the roots of the plant seedling 11 starts to be blunted. In addition, if the inclination angle is 75 degrees or more, which is the upper limit value, it is not preferable because the internal growth material easily falls off.

  The inclination fixing means 20 has an inclination fixing plate 21, and the long cylindrical body 10 is inclined by an inclined surface 21 a of the inclination fixing plate 21 to support the entire lower side surface thereof. By supporting the entire side surface of the cylindrical body 10 by the inclined surface 21a, the long cylindrical body 10 is prevented from being deformed such as bending and bending.

  The cylindrical body 10 may be a cylindrical body, or may have a polygonal shape such as a triangle or a quadrangle, or an elliptical shape. The cylindrical body 10 penetrates vertically and can be filled with the growth material 12 inside. Any mouth shape may be used. The surface shape of the inclined surface of the inclination fixing means 20 may be changed according to the diameter.

  It is desirable that the diameter of the cylindrical body 10 is set to a minimum diameter within a range that does not inhibit root elongation and can secure a retention capacity of nutrient water necessary for plant growth. If the diameter of the cylindrical body 10 is made too small, there is a possibility that the elongation of the root is hindered by the wall surface action. If the diameter is set large, the weight and volume increase, the operability decreases, and the internal growing material The holding becomes unstable. The optimum diameter of the cylinder 10 varies depending on the plant species, but in general, it is preferably set to about 20 times the main root diameter of the plant seedling.

  As a material constituting the cylindrical body 10, a material having water permeability, water retention and air permeability is preferable. As such a material, inorganic and organic porous materials can be used. Examples of the inorganic porous material include a porous sintered body obtained by sintering sludge dry particles, and examples of the organic porous material include a hard foam of synthetic resin. Further, as will be described later, when the plant seedling 11 is actually planted, the cylindrical body 10 is inserted into the soil together with the plant seedling 11 and is left as it is. A biodegradable material is preferred. This is also for the purpose of preserving the environment and for preventing the plant seedling 11 from becoming a constraint when it grows thick.

  The growing material 12 can insert the plant seedling 11 into the cylindrical body 10 or fix it inside the upper opening of the cylindrical body 10 while protecting the trunk and roots of the plant seedling 11. In order to be able to supply moisture and oxygen to the roots of the seedling 11, the seedling 11 is made of a material having water permeability, water retention and air permeability. Examples of such materials include soil, sand, gravel, vermiculite, perlite, sponge-like synthetic resin, and the like.

  The cylindrical body 10 fixed in the inclined state is supported by the inclined surface 21a as a whole, so that the entire weight is not applied to the lower portion of the cylindrical body 10 unlike the case where the cylindrical body 10 is erected vertically. . Therefore, even when the cylindrical body 10 is made of a material having low water resistance, there is no problem if water is poured into the lower portion as long as it is not excessive.

  Since the growing material 12 inserted into the inside of the cylindrical body 10 is adjusted to a hardness that enables the growth rate of the root 11a of the plant seedling 11 to be increased, the root 11a quickly grows downward. And at this time, when water stress is given by supplying water only to the lower part of the cylinder 10 and supplying the necessary minimum amount of moisture to the lower part of the inner growth material 12 through the wall part of the cylinder. The plant seedling 11 grows the roots downward in the presence of moisture at a faster rate than when placed in an environment with sufficient moisture. That is, when water is poured into the lower end of the cylinder 10 and the cylinder 10 is placed in a wet state, the plant seedling 11 grows the roots faster earlier as if the water source is perceived to be present below the cylinder 10. Let As a result, plant seedlings having long roots can be grown within a short period of time.

  In addition, when the root of the plant seedling 11 in the cylinder 10 is sufficiently grown and reaches the lowermost part of the cylinder 10, the cylinder 10 is inclined and fixed while the growth material 12 and the plant seedling 11 are accommodated therein. It is difficult to plant a plant by removing it from the means 20 and supplying this set of “tubular body 10, plant seedling 11 and growing material 12” as a plant seedling set for planting in a form advantageous for transportation and planting. It is possible to further promote seedlings in various areas.

  FIGS. 2 and 3 are for explaining the second embodiment of the present invention. The difference from the short-term growing tool shown in the first embodiment is that, as a cylinder, instead of the cylinder 10, FIG. The cylindrical body 30 having a shape obtained by halving the cylindrical body as shown is used.

  The cylindrical body 30 includes a main body 31 having a cylindrical half-divided body shape and a lid member 32 that detachably closes the open surface of the half-shaped main body 31. Similar to the first embodiment, the cylindrical body 30 is placed on the inclined surface 21a of the inclination fixing means 20 and fixed in an inclined state. At that time, the main body 31 is placed on the lower side and the lid member 32 is placed on the upper side.

  The cylindrical body 31 and the lid member 32 are preferably made of the same material as the cylindrical body 10 of the first embodiment. After the long root 11a of the plant seedling 11 is sufficiently grown, the lid member 32 is made to stand upright and embedded in the fixed planting area, so that the inner growing material 12 and the plant seedling 11 do not fall off when standing upright. Thus, it must be fixed to at least the main body 31 until it is firmly fixed to the main body 31, transported toward the fixed planting area, and inserted into the boring hole of the fixed planting area. Since it is complicated in steps to collect only the lid member 32 after being inserted into the borehole, it is desirable that the lid member 32 is also made of a biodegradable material similar to that of the cylindrical body 31.

  The features of the second embodiment are that the main body 31 has a halved shape and that the lid member 32 can be attached and detached. If it is in the state of being tilted and fixed, even if the lid member 32 is removed from the main body 31, the inner growth material 12 will not fall off. Therefore, irrigation during the growth process of the plant seedling 11 can be performed directly on the growing material in the cylindrical body 31 with the lid 32 opened. Therefore, it is only necessary to consider the amount of water supplied to the growth material 12 without considering the amount of moisture that remains absorbed and retained by the wall of the cylindrical body, and the water consumption can be reduced. Furthermore, the advantage is that it is not necessary to excessively contain water in the cylindrical material, so that the strength of the cylindrical material is not deteriorated by water injection.

  The inclination fixing angle of the cylindrical body 30 in the second embodiment is the same as that in the first embodiment.

  In addition, in the said Example 2, although the cylinder main body 31 was made into the half shape, the complete cylinder was notched in the 2-30% length direction, that is, the cylinder was left to 80% and 70%. Another embodiment of the present invention is also possible in which a shape is formed and the notch opening portion in the longitudinal direction is closed with a lid material so as to be freely opened and closed.

  In Example 3, an example of a seedling method using the short-term growing tool of the present invention (FIG. 4) is shown. In the third embodiment, the case where the cylindrical body 10 having the configuration shown in the first embodiment is used will be described. However, the same can be applied even when the cylindrical body 30 having the halved structure of the second embodiment is used.

  In this seedling method, the cylindrical body 10 is inclined and fixed to the inclination fixing means 20 as described above, the plant seedling 11 is grown, the long root 11a is grown to the extent that it comes out from the lowermost end, and then the cylindrical body. A set of the growing material 12 and the plant seedlings 11 stored in 10 is conveyed as a plant seedling set 33 to the fixed planting area 40.

  When the plant seedling set 33 is conveyed to the fixed planting area 40, first, as shown in FIG. 4, the plant grows a vertical hole 41 having the same diameter as the cylinder diameter of the plant seedling set 33 in the ground of the fixed planting area 40 such as a dry land. For this purpose, excavation is performed up to the soil layer 42 containing sufficient high-quality moisture.

  Next, the aforementioned plant seedling set 33 is inserted into the vertical hole 41. Then, the local soil is supplemented in the gap. Thereby, as shown in FIG. 4, planting of the plant seedling 11 is completed in the soil of a fixed planting land. In this state, the long root 11a of the plant seedling 11 is protected by the growing material 12 and the cylinder 10, and the tip thereof is inserted into a high-quality water-containing soil layer 42 in the deep part of the soil and brought into contact with moisture.

  Since the short cylinder 27 is composed of a biodegradable material, it gradually decomposes over time and integrates with the local soil. During this period, the long root 11a is of good quality from the hydrous soil layer 42. It absorbs fresh water, grows further, and supports the growth of the plant seedling 11 body in this fixed plantation.

  The plant seedling short-term growing tool, the short-term growing method, the planting seedling set for planting, and the planting method in the planting site according to the present invention efficiently grow plant seedlings (deep root seedlings) having long roots in a short period of time. Can do. Moreover, since the long roots can be transported while being protected by the cylinder, after the long roots are grown at a suitable place for growth, the obtained plant seedlings are easily supplied to remote areas. be able to. Plant seedlings transferred to areas where it is difficult to cultivate plants such as dry land (especially in areas where high-quality hydrous soil layers exceed 1.5 m) are inserted into the ground together with cylinders. Can plant seedlings without damaging long roots. With such planting, the tip of the long roots reaches the deep soil layer with the water quality and water volume necessary for the plant to grow, so that the plant can be removed from the dry zone without actively supplying water. Can be fixed. In other words, according to the present invention, deep root seedlings can be grown (water-saving) and mass-produced in a short period of time, and since it is possible to increase the establishment rate, greening in areas where it is difficult to grow plants such as dry land Can be implemented easily and on a large scale and can contribute to food problems and environmental problems such as the prevention of global warming from the viewpoint of carbon dioxide fixation.

It is a side lineblock diagram showing the 1st example of a short term breeding tool of the present invention. It is for describing a second embodiment of the short-term growing tool of the present invention, and is a side configuration diagram showing another shape example of a cylindrical body constituting the short-term growing tool. FIG. 3 is a cross-sectional configuration diagram taken along line III-III in FIG. 2. It is explanatory drawing which shows the planting method of this invention in the area | region where it is difficult to grow plants, such as a dry land. It is a figure which shows the structure of the structure used for the conventional seedling method proposed for greening of a dry land. It is a figure which shows the structure of the other structure used for the conventional planting method proposed for greening of a dry land. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a plant seedling short-term growing tool developed by the present inventors prior to the present invention. It is the perspective view which saw through the structure of the short-term growing tool of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 30 Tubular body 11 Plant seedling 11a Elongate root 12 Growing material for plant seedling 20 Inclination fixing means 21 Inclined plate 21a Inclined surface 31 Cylindrical body 32 Cover material 33 Plant seedling set 40 Fixed planting area 41 Vertical hole 42 Deep high-quality water content Soil layer

Claims (16)

A tool for short-term growth of plant seedlings for obtaining plant seedlings having long roots that can be established in a fixed planting area,
It has a cylinder filled with the growth material for plant seedlings, and an inclination fixing means for inclining and fixing the cylinder by a predetermined angle,
Short-term growth of plant seedlings characterized in that the growth material is adjusted to a hardness that allows the growth rate of the roots of the plant seedlings to be fixed to the inside of the upper opening of the cylinder to be increased downward. Tools.   The plant seedling short-term growing tool according to claim 1, wherein the tilt fixing means has an inclined surface that supports the entire side surface of the cylindrical body.   The plant seedling short-term growing tool according to claim 1, wherein the upper side surface of the cylindrical body when tilted is openable and closable.   The plant seedling short-term growth tool according to claim 2, wherein the cylindrical body is a half-shaped cylindrical body, and a lid member is detachably attached to the half-divided opening. A tool for short-term cultivation of seedlings.   The plant seedling short-term growing tool according to any one of claims 1 to 4, wherein the hardness of the growing material is equal to or less than the soil hardness of a fixed plantation where the plant seedling after growing is to be fixed. A short-term planting tool for plant seedlings.   The plant seedling growing tool according to any one of claims 1 to 5, wherein the growing material is at least one selected from the group consisting of soil, sand, gravel, and soil substitute. A tool for short-term cultivation of plant seedlings.   The plant seedling short-term growing tool according to any one of claims 1 to 6, wherein the cylindrical body has water permeability.   The plant seedling short-term growth tool according to any one of claims 1 to 7, wherein the cylindrical body has water retention.   The plant seedling short-term growing tool according to any one of claims 1 to 8, wherein the cylindrical body has air permeability.   The plant seedling short-term growth tool according to any one of claims 1 to 9, wherein the cylindrical body is made of a biodegradable material. A method for short-term cultivation of a plant seedling to obtain a plant seedling having a long root that can be settled in a fixed plantation using the plant seedling short-term cultivation tool according to any one of claims 1 to 10,
By fixing the plant seedling in the growing material inside the upper opening of the cylinder fixed at a predetermined angle by the inclination fixing means, and by growing the root of the plant seedling downward in the cylinder, the long A plant seedling growing method characterized by obtaining a plant seedling having a root.   The short-term growth method for plant seedlings according to claim 11, wherein the cylinder fixed at a predetermined angle by the inclination fixing means is poured into the lower part of the cylinder in a fixed state, and the inside is passed through the material of the cylinder. A method for short-term cultivation of plant seedlings, characterized in that water is supplied to the growing material. A method for short-term growth of a plant seedling to obtain a plant seedling having a long root that can be established in a fixed plantation using the plant seedling short-term growth tool according to claim 3 or 4,
Short-term growth of plant seedlings characterized in that the cylinder fixed at a predetermined angle by the inclination fixing means is opened and the upper surface of the cylinder is opened and moisture is directly supplied to the internal growth material. Method.   A plant seedling set for fixed planting, wherein a plant seedling having a long root reaching the lower end of the short-term growing tool is accommodated in the short-term growing tool according to any one of claims 1 to 10.   The plant seedling set for planting according to claim 14, wherein the plant seedling having the long root is grown by the short-term growing method of a plant seedling according to any one of claims 11 to 13. A plant seedling set for planting characterized by this.   A vertical hole is excavated in the ground of the fixed planting area until it reaches a hydrous layer having water of the quality and quantity necessary for plant growth, and the plant seedling set for fixed planting according to claim 14 or 15 is inserted into the vertical hole. A method for planting seedlings in a fixed planting site, characterized by being planted in the planting site by embedding.

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