JP4120966B2 - Sowing device and sowing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sowing apparatus and a sowing method for arranging and seeding various seeds on a seed bed.
[0002]
[Prior art]
In the breeding of seedlings mainly for grafting or transplanting in vegetable cropping, the development of seedling techniques for efficiently mass-producing healthy seedlings with uniform growth is underway. In such raising seedling technology, not only the growth state of the seedling but also the uniformity of the gathering seedling including the directionality of the form is required, and in order to realize this, at the seeding stage related to the raising of the gathering seedling. Aligned sowing that makes the seed sowing state uniform is regarded as important. In particular, for seedlings of cucurbitaceae vegetables, aligned sowing is recommended for aligning the cotyledon development direction after germination, and there is also the current situation that aligned sowing is performed manually at the seedling production site.
[0003]
As a seeding device for performing such seeding, for example, a device described in Patent Document 1 below has been proposed. This is to form a seeding groove having a V-shaped cross section on the surface of the seeding floor for each cell of the seedling tray, and to supply seeds for each seeding groove, and the supplied seed is a seeding groove having a V-shaped cross section. The direction of the seeds is aligned by being guided by the slopes.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 8-214618
[Problems to be solved by the invention]
According to such a conventional sowing device, even in the seeds of the Cucurbitaceae vegetable having a directionality in the longitudinal direction and flat, the seeds are arranged along the slope of the sowing groove having a V-shaped cross section. In each cell, seeding is performed with a certain degree of directionality. However, with seeds that have directionality in the longitudinal direction, the posture may vary from a completely fallen state to a standing state even along the slope, and germination formed at the end of the seed When the mouth position is taken into consideration, the depth of the germination position varies depending on whether the germination position is up or down with the seeds standing.
[0006]
The present invention has been proposed in order to cope with such a situation, and the sowing apparatus that can further reduce the variation in the directionality and germination position of the seeds arranged and sown on the sowing bed surface. And a seeding method.
[0007]
[Means for Solving the Problems]
In order to achieve such an object, a seeding apparatus and a seeding method according to the present invention include the features according to the following claims.
[0008]
The invention according to claim 1 is characterized in that in the seeding device, the first presser body that forms a seeding groove having a roof-shaped or pyramid-shaped slope on which seeds are arranged on the seeding floor surface at each seeding position, and the recess And a second suppressor for suppressing the sowing groove and leveling the slope on which the seeds are arranged.
[0009]
The invention according to claim 2, assuming seeding device according to claim 1, recess of the second crush body, characterized by having a side surface inclined at a predetermined angle in the direction of the slope and symmetrical.
[0010]
According to a third aspect of the present invention, on the premise of the seeding device of the second aspect, the concave portion of the second pressure suppressor is formed by a horizontal surface in contact with the seed and the side surface formed in the periphery thereof. .
[0011]
The invention according to claim 4 is the sowing method, wherein the sowing bed surface is squeezed with a first squeezing body to form a sowing groove having a roof-shaped or pyramidal slope on which seeds are arranged, After the seed is placed in the sowing groove, the secondary soaking process is characterized in that the sowing groove is crushed with a second crushed body having a recess, and the slope on which the seed is placed is leveled .
[0012]
According to a fifth aspect of the invention, on the premise of the seeding method of the fourth aspect, the concave portion of the second suppressor includes a horizontal plane that abuts on the seed and a side surface that is inclined at a predetermined angle in a direction symmetrical to the inclined surface. And leveling the slope and holding the seed horizontally.
[0013]
According to the present invention having such characteristics, the following effects can be obtained.
[0014]
As a 1st characteristic, since the soaking | growing groove | channel which has a roof-shaped or pyramid-shaped slope in which a seed is arrange | positioned is formed in the 1st suppression body, it is direction with respect to the seed arrange | positioned along this slope. Aligned sowing can be performed so that the sexuality is aligned within a certain range of variation. And since the sowing groove is crushed by the concave portion of the second pressure body and the slope of the sowing groove is leveled, soil flow occurs in the process of leveling the sowing groove with the second pressure body, According to the above, further directionality can be imparted to the seed. Even if the germination ports located at the ends of the seeds having directionality in the longitudinal direction are arranged upside down in the sowing groove, the seeds are finally leveled along the leveled surface. Since it is held, it becomes possible to make the depth of the germination position constant.
[0015]
As the second feature, in addition to the above-described features, the concave portion of the second pressure suppressor has a side surface inclined at a predetermined angle in a direction symmetrical to the inclination of the seeding groove. By crushing the groove, the slope of the sowing groove rises according to the pressing of the side surface of the recess, and the surface on which the seeds are arranged can be leveled.
[0016]
As a third feature, in addition to the above-described feature, the concave portion of the second pressure suppressor is formed by a horizontal surface that contacts the seed and a side surface formed in the periphery thereof, and this side surface is the slope of the sowing groove as described above. Are inclined at a predetermined angle in a symmetric direction, so that the side surface lifts the slope of the sowing groove from the periphery by leveling the sowing groove by the second pressure body, and the surface on which the seeds are arranged is leveled. In addition, since the seed comes into contact with the horizontal surface of the second suppressor, the seed is held horizontally on the leveled surface.
[0017]
As a fourth feature, in the sowing method, the primary pressure reducing step of forming the above-described roof-shaped or pyramid-shaped slope with the first pressure body is performed, and then the seed is seeded in the seeded groove, and then the concave portion is formed. The secondary suppression process which suppresses a sowing groove | channel with the 2nd suppressor which has is performed. Thereby, the directionality of the sown seed can be aligned, and the depth of the germination position can be aligned by holding the seed horizontally.
[0018]
As a fifth feature, in addition to the above-described features, the seed can be pressed to a certain depth on the horizontal surface of the second suppressor. Sowing.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view illustrating the configuration of a seeding apparatus according to an embodiment of the present invention. This seeding apparatus is an apparatus for arranging and seeding seeds for each sowing position of each cell on a seedling tray 1 composed of, for example, a 6 × 12 or 8 × 16 cell 1A (a seedling frame, a pot, etc.) The conveyance unit 2 and the seeding unit 3 are included. And the sowing part 3 is arranged sowing along the slope of the primary sowing mechanism 30A provided with the first soot body 30A that forms the sowing groove on the surface of the sowing bed for each cell 1A in the seedling tray 1, and the slope of the sowing groove formed. And the secondary sowing mechanism 32A provided with the second soot body 32 that compacts the sowing groove in which the seeds are placed. In addition, although the example which uses the seedling tray 1 divided by the cell 1A is demonstrated here, the seeding apparatus of this invention is not specified by the form of a seedling tray especially, It is not limited to the seedling tray without a cell division etc. Applicable.
[0020]
FIG. 2 is an explanatory diagram illustrating a configuration example of the first pressure suppressor 30 described above. In the example shown in FIG. 5A, a roof-shaped tip structure having a first slope portion 30a and a second slope portion 30b for forming a seeding groove having a slope is formed, and the structure shown in FIG. In the example, a pyramid-shaped tip structure having a first slope portion 30c, a second slope portion 30d, a third slope portion 30e, and a fourth slope portion 30f is formed in order to form a seeding groove having a slope. In any case, the first pressure-reducing body may be structured to form a sowing groove having at least one slope on which seeds are arranged by lowering in the direction of the arrow and pressure-suppressing the tip portion to the sowing surface. That's fine.
[0021]
FIG. 3 is an explanatory diagram showing a configuration example of the second pressure-reducing body 32 described above. In the example shown in FIG. 5A, a concave portion having a horizontal surface portion 32a at the center portion and a pair of side surface portions 32b and 32c inclined at a predetermined angle in a direction symmetrical to the inclined surface of the seeding groove on both sides thereof. have. In the example shown in FIG. 5B, a concave portion having a horizontal surface portion 32d at the center portion and side portions 32e to 32h inclined at a predetermined angle in a direction symmetrical to the inclined surface of the seeding groove is formed around the center portion. Have. In any case, the second pressure-reducing body only needs to move down in the direction of the arrow and level the slope of the seeding groove by pressing the seeding groove with the recess.
[0022]
Next, based on FIG. 4, the effect | action of the seeding apparatus which concerns on embodiment of this invention mentioned above, and the seeding method using this seeding apparatus are demonstrated. First, as shown in FIG. 1, when the seedling tray 1 filled with the nourishment soil in the pretreatment process is transported and a row of cells (for example, 6 cells) reaches below the primary pressure-reducing mechanism 30A, this primary As shown in FIG. 4 (a), the pressure suppression mechanism 30A is activated to form the seeding groove 4 by the pressure suppression of the first pressure suppression body 30 on the seeding floor surface of each cell (primary pressure suppression step). The sowing groove 4 is formed, for example, in a V-shaped cross section or a pyramid shape, and has an inclined surface 4A on which at least one seed is arranged.
[0023]
Next, when the cell 1A in which the seeding grooves 4 are formed on the seeding floor surface reaches below the aligned seeding mechanism 31, the aligned seeding mechanism 31 operates, and as shown in FIG. A seed S is arranged along the line (aligned sowing step). According to this, in the first suppression body 30, forms a sowing groove 4 having an inclined surface 4A seed S are arranged, by placing the seeds S along the inclined surface 4A, the direction of constant variation It is possible to perform aligned sowing that is aligned within the range of.
[0024]
Then, when the cell 1A in which the seed S is disposed in the sowing groove 4 reaches under the secondary suppression mechanism 32A, the secondary suppression mechanism 32A is activated, as shown in FIG. 4C. Suppression is performed on the sowing groove 4 by the second suppression body 32 (secondary suppression process).
[0025]
FIG. 5 is an explanatory view showing a state in which the sowing groove 4 is suppressed by the second suppressor 32. When the sowing groove 4 is squeezed by the second squeezing body 32, the slope 4A of the sowing groove 4 rises due to the squeezing action by the side surfaces 32b and 32c that are inclined in a direction symmetrical to the slope 4A, and the slope 4A is leveled. be able to. In the process in which the sowing groove 4 is leveled by the second pressure body 32, soil flow occurs, and according to this, the seeds aligned and sowed along the slope 4A are further aligned. Moreover, even when the germination opening located at the end of the seed S having the directionality in the longitudinal direction is arranged upside down in the sowing groove 4, the seed S finally has a leveled surface. Since it is arranged horizontally and is held horizontally by coming into contact with the horizontal surface portion 32a of the second pressure body 32, the depth of the germination port position can be made constant.
[0026]
FIG. 6 is an explanatory view showing another embodiment of the sowing apparatus according to the present invention. The same parts as those in the embodiment shown in FIG. In this embodiment, the primary pressure-reducing mechanism 30A and the secondary pressure-reducing mechanism 32A are constituted by roller bodies 30B and 32B, and the first pressure-reducing body 30 and the second pressure-reducing body 32 described above are provided around the roller bodies 30B and 32B, respectively. It is a thing. According to this, it becomes possible to perform continuous primary suppression and secondary suppression with a simple mechanism.
[0027]
According to the embodiment shown above, since the seed S is arranged to some extent in the sowing groove 4 and then the sowing groove 4 is suppressed by the second suppressor 32, the seed S 4 is symmetrical to the inclined surface 4A of the sowing groove 4. The sowing groove 4 is filled by the pressure-reducing action of the side surfaces 32b and 32c (or 32e to 32h) inclined at a predetermined angle, and the surface on which the seeds S are arranged can be leveled. And the directivity of the seed S is further aligned by the fluid action of the soil moving in the process of leveling the slope 4A. In addition, since the seed S arranged on the leveled surface is further held in contact with the horizontal surface portion 32a (32d) of the second pressure body 32 and germinated at the end of the seed S. It becomes possible to make the depth of the mouth position constant. Therefore, according to this, it becomes possible to further improve the accuracy of the aligned sowing.
[0028]
In addition, in the seeding apparatus of each embodiment mentioned above, although the example of the apparatus provided with the seeding part 3 which has 30 A of primary suppression mechanisms, the alignment seeding mechanism 31, and the secondary suppression mechanism 32A was shown, this invention is limited to this. In the embodiment, the seeding mechanism 31 is omitted so that the seeding mechanism 31 is omitted, the pressure suppressor including the first pressure suppressor 30 for performing primary suppression, and the second pressure suppressor 32 for performing secondary suppression. Embodiments, such as a form which uses a pressure suppression tool independently, are also included in the present invention. Moreover, in each embodiment mentioned above, although the example seed | inoculated on the seeding surface of a seedling tray is shown, the seeding floor is not only various seedling trays or seedling frames, but also the field scene in an alley, a house, and other facilities. It may be direct sowing.
[0029]
【The invention's effect】
Since the present invention is configured as described above, it is possible to provide a seeding apparatus and a seeding method that can further reduce the directionality of seeds arranged and sown on the surface of the seeding floor and the variation in germination position.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram illustrating a configuration of a seeding device according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing a configuration example of a first pressure suppressor according to the embodiment.
FIG. 3 is an explanatory diagram showing a configuration example of a second pressure suppressor according to the embodiment.
FIG. 4 is an explanatory diagram for explaining the operation of the seeding device according to the embodiment of the present invention and the seeding method using the seeding device.
FIG. 5 is an explanatory view showing a state in which a seeding groove is suppressed by a second suppressor in the embodiment of the present invention.
FIG. 6 is an explanatory view showing another embodiment of the seeding device according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seedling tray 1A Cell 2 Tray conveyance part 3 Seeding part 30 1st suppression body 30a-30f Slope part 30A Primary suppression mechanism 31 Alignment seeding mechanism 32 2nd suppression body 32a, 32d Horizontal surface part 32b, 32c, 32e-32h Side surface part 32A Secondary suppression mechanism 4 Sowing groove 4A Slope S Seed

Claims (5)

The first pressure body that forms a seeding groove having a roof-shaped or pyramid-shaped slope on which seeds are disposed on the surface of the seeding floor at each seeding position, and the seeding grooves are suppressed by the depressions, and the seeds are disposed. A seeding device comprising a second pressure-suppressing body for leveling the slope. The concave portion of the second suppression bodies, seeding device according to claim 1, characterized in that it has a side surface inclined at a predetermined angle in the direction of the slope and symmetrical.   The seeding device according to claim 2, wherein the concave portion of the second pressure-reducing body is formed by a horizontal surface that abuts on the seed and the side surface formed in the periphery thereof. A primary pressure reducing step of reducing the seeding floor surface with a first pressure suppressor to form a seeding groove having a roof-shaped or pyramid-shaped slope on which the seed is arranged, and after arranging the seed in the seeding groove, a concave portion is provided. A sowing method comprising : a secondary compaction step of compacting the sowing groove with a second compactor and leveling the slope on which the seeds are arranged .   The concave portion of the second pressure suppressor has a horizontal surface that abuts on the seed and a side surface that is inclined at a predetermined angle in a direction symmetrical to the slope, and leveles the slope and holds the seed horizontally. The seeding method according to claim 4, wherein:

Images