JP3157289B2 - Precision seeding equipment for paddy rice mat seedlings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sowing apparatus for growing mat rice seedlings to be transplanted by a rice transplanter, and more particularly to a rice plant capable of performing precise sowing by irrigation and selection of seeds. The present invention relates to a precision seeding apparatus for mat seedlings.

[0002]

2. Description of the Related Art Conventionally, a sowing means for cultivating a mat seedling for paddy rice transplanted by a rice transplanter, wherein at least a seeding box continuously fed by a seedling box supply mechanism is sown by a seeding mechanism. A sowing unit for irrigating by a watering mechanism, or a sowing apparatus for growing a mat seedling for paddy rice transplanted by a rice transplanter, and a seedling box supply mechanism for continuously transferring a seedling box, There is a well-known seeding unit provided with a seeding mechanism for sowing and a watering mechanism for watering a seedling box that is continuously transferred. In the above-mentioned conventional sowing unit, watering is performed before or after sowing.

[0003] In recent years, a technique of transplanting a seedling that has been germinated for about one week has become widespread.
High-density sowing and precision sowing are premised, and a sowing apparatus for that purpose is demanded.

[0004]

When watering is performed either before or after sowing, as in the above-mentioned conventional sowing unit, the seeds remain almost in the sowed state or the seeds are irrigated. The seedlings are covered with the soil slightly moved from the seeding position, and germinated and raised. As a result, there is a problem that if there is uneven sowing, uniform germination and seedling growth cannot be expected over the entire seedling box, and a high quality mat seedling cannot be obtained. In addition, high-density sowing and precision sowing techniques for growing dairy seedlings were also insufficient. The present invention has been made to solve the above problems.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an A.I. A seeding apparatus 1 for growing mat seedlings for paddy rice transplanted by a rice transplanter, comprising a seedling box supply mechanism 3 for continuously transferring seedling boxes 4 and a seedling box 4 continuously transferred. In a sowing unit provided with a sowing mechanism 7 for sowing and an irrigation mechanism for irrigation, an irrigation mechanism having irrigation nozzles 6 and 8 is provided at both front and rear positions of the sowing mechanism 7 for sowing seeds subjected to germination. B. The ratio of irrigation from both irrigation nozzles 6 and 8 can be adjusted via movable throttle valves 13 and 15, and the irrigation nozzle 8 behind the seeding mechanism can swing back and forth by a crank swing mechanism 16. The germinated seeds sowed by the sowing mechanism 7 are brown rice.

[0006]

According to the above construction, the precision sowing apparatus for mat rice seedlings of the present invention comprises: An irrigation mechanism having an irrigation nozzle is provided at both front and rear positions of a sowing mechanism for sowing seeds subjected to germination treatment, and the rate of irrigation from both irrigation nozzles can be adjusted via a movable throttle valve,
The irrigation nozzle behind the seeding mechanism can be swung back and forth by the crank swinging mechanism, so it is possible to perform precision sowing with a simple structure, and uniform germination and seedling cultivation are performed and high quality mat seedlings Is obtained. . If the germinated seeds sown by the sowing mechanism are brown rice, high-density sowing (about twice as much) is possible, the germination of seeds performed before sowing is shortened, the germination speed is increased, and germination is achieved. The alignment is improved.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a precision sowing device (unit) for growing mat rice seedlings to be transplanted by a rice transplanter.
A seedling box conveyor 3 as a seedling box supply mechanism for continuously transferring the seedling boxes 4 is provided on a long stand 2 having a predetermined height. On the conveying path of the conveyor 3, a pre-seeding watering nozzle 6, a seeding machine 7, a post-seeding watering nozzle 8, and a soil covering machine 9 are provided in this order along the moving direction. A seedling box detector 10 is provided below the transport path of the conveyor 3.

In this embodiment, a rock wool-based molded mat 5 is used as the floor soil in the nursery box 4 in this embodiment. The pre-seeding irrigation nozzle 6 and the post-seeding irrigation nozzle 8 are connected by a pipeline to a pressure water source 11 pressurized by, for example, a pump. A pressure gauge P is provided,
Also, after the seeding, an electromagnetic valve 1 is installed in the pipeline on the irrigation nozzle 8 side.
4. A variable throttle valve 15 and a pressure gauge P are provided so that the rate of irrigation from both irrigation nozzles 6, 8 can be adjusted. Further, the post-seeding irrigation nozzle 8 swings back and forth by a crank swinging mechanism 16 for irrigation.

In the rice seedling precision sowing apparatus having the above-described structure, the seedling box 4 filled with the rock wool molding mat 5 is continuously supplied onto the seedling box conveyor 3 and moved in the direction of the arrow. The presence or absence of the seedling box 4 on the seedling box conveyor 3 is detected by the seedling box detector 10,
Irrigation nozzle 6 before sowing, sowing machine 7, irrigation nozzle 8 after sowing,
The soil covering machine 9 and the like are controlled. The amount of irrigation of the pre-sowing irrigation nozzle 6 and the post-sowing irrigation nozzle 8 is set in advance, but can be changed during the operation. The seeding machine 7 contains germinated rice or brown rice.

When the seedling box 4 is fed by the seedling box conveyor 3 and reaches the position of the pre-seeding watering nozzle 6, a predetermined amount of watering is performed from the watering nozzle 6, and the rock wool molding mat 5 becomes high in moisture. Next, seeding 7 a is performed on the upper surface by the seeding machine 7. When the sown nursery box 4 reaches the position of the post-seeding irrigation nozzle 8, watering is performed by the post-seeding irrigation nozzle 8 swinging back and forth from above the rock wool molding mat 5, and the seeds sown by this irrigation are , Sowing unevenness is corrected. Thereafter, the soil is covered by the soil covering machine 9 and the seeding operation is completed. By arranging the nozzles of the irrigation nozzles 8 after sowing at regular intervals, the seeds scattered on the rock wool-based molding mat 5 can be aligned in a row, and can be formed into a row.

As described above, in the present invention, watering is performed by the watering nozzles 6 and 8 at positions before and after seeding, so that the rock wool molding mat 5 of the seedling raising box 4 is watered by watering before seeding.
The seeds sowed are leveled by irrigation after sowing, sowing sowing unevenness is corrected, and the seedling box 4 is made almost uniform over the entire surface, resulting in precision sowing. As a result, uniform germination and seedling growth are performed over the entire seedling raising box 4, and high quality mat seedlings with almost constant seedling density are grown. Therefore, it is suitable not only for raising paddy rice mat seedlings, but also for raising nursery seedlings.

The irrigation nozzles 6 and 8 provided at both front and rear positions of the seeding mechanism can freely adjust the amount of irrigation. By adjusting the ratio of irrigation from the two irrigation nozzles 6 and 8, the rock wool molding mat can be adjusted. 5 and proper irrigation can be performed according to the state of the seeds, and precision sowing is achieved. In addition, since the watering nozzle 8 is swung back and forth by the crank swinging mechanism 16 for watering after the seeding, the movement of the water at that time makes it possible to more appropriately correct the seeding unevenness. Furthermore, it is possible to perform precision sowing while its configuration is simple, and the range of application to a general sowing apparatus (unit) is wide.

When the seeds to be sown are brown rice subjected to germination treatment, high-density sowing (about twice as large as in the case of paddy) is possible, and the germination treatment of seeds performed before sowing can be performed in a short time. There are advantages such as higher sprouting speed, improved sprouting uniformity, and the like. Therefore, it is particularly suitable for high-density sowing and precision sowing for dairy seedlings, and a desired mat seedling can be grown.

FIG. 2 shows a case in which seeds are seeded at a density of 310 g / box on a rock wool molding mat at a high density of 310 g. A conventional sowing unit (watering only before sowing) and watering before and after sowing according to the present invention are shown. It is a graph which shows the result of having compared the seeding precision with the seeding unit (the ratio of irrigation before and after seeding is about 2: 1, standard watering amount: 2 liters before seeding, 1 liter after seeding). Comparing the heights of the sown seeds, it is clear that in the conventional case, there is an overlap of the seeds in a portion where the seeding height is large, and there is almost no seed in a small portion. In contrast, in the case of the present invention, it can be seen that the thickness (about 3 mm) of the seed rice is uniform. Therefore, it is clear that when the mat seedling after the seedling is transplanted, the transplantation accuracy of the present invention is higher.

[0015]

As described above, according to the precision sowing apparatus for mat seedlings of paddy rice of the present invention, the following effects can be obtained. . Irrigation mechanisms having irrigation nozzles 6 and 8 are provided at both front and rear positions of a sowing mechanism 7 for sowing seeds that have undergone germination treatment.
5 can be adjusted via the irrigation nozzle 8 behind the seeding mechanism
Can be rocked back and forth by the crank rocking mechanism 16, so that it is possible to perform precise sowing according to the floor soil and seeds with a simple configuration. Then, uniform germination and seedling cultivation are performed to obtain a high-quality mat seedling, which is suitable for cultivation of dairy seedlings. . Since the germinated seeds sown by the sowing mechanism 7 are brown rice, high-density sowing (about twice as much) as that of ordinary paddy is possible, and the germination of seeds performed before sowing is shortened. Also, the germination speed is increased, and the germination uniformity is improved. In particular, high-density sowing and precision sowing are achieved, which is suitable for growing dairy seedlings.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a precision sowing apparatus according to the present invention.

FIG. 2 is a graph showing a change in the height of sowing paddy.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Precision seeding apparatus 2 Stand 3 Nursery box conveyor 4 Nursery box 5 Rock wool molding mat 6 Irrigation nozzle before sowing 7 Seeding machine 8 Irrigation nozzle after sowing 9 Covering machine 10 Nursery box detector 11 Pressure water source 12 Manual valve 13, 15 Variable Throttle valve 14 Solenoid valve 16 Crank swing mechanism P Pressure gauge

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tomohiko Ichikawa 1-40-2 Nisshin-cho, Omiya City, Saitama Prefecture Within the Research Institute for Specified Industrial Technology in Biological Sciences (56) References JP-A-56-106510 (JP, A (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 7/00 A01C 7/08 320

Claims (2)

(57) [Claims] 1. A seeding apparatus (1) for growing mat rice seedlings to be transplanted by a rice transplanter, comprising a seedling box.
Provided a nursery box feed mechanism (4) was continuously transported (3), nursery box come transported continuously to (4), and a watering mechanism for seeding mechanism (7) and irrigation to perform seeding In the sowing unit, watering mechanisms having watering nozzles (6, 8) are provided at both front and rear positions of a sowing mechanism (7) for sowing germinated seeds, and the ratio of watering from both watering nozzles (6, 8) is provided. The movable aperture
A paddy rice plant characterized in that it is adjustable through valves (13, 15) and the irrigation nozzle (8) behind the seeding mechanism is swingable in the front-back direction by a crank swing mechanism (16) . Precision seeding equipment for mat seedlings. 2. An event sowed by the sowing mechanism (7).
2. The precision sowing apparatus for mat rice seedlings according to claim 1, wherein the seeds subjected to the bud treatment are brown rice.