JPH10136715A - Device and method for submerging direct sowing with surface layer agitation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dissolve the problems that seeds after the submerging direct sowing often float and flow, an injury by birds occurs and sprouts are apt to fall down. SOLUTION: This submerging direct sowing device 1a for sowing paddy rice seeds to a plowed and puddled submerged paddy field is provided with a seed housing part 3, a seed delivery means 4 provided on the discharge side of the seed housing part 3, a seed carrying pipe 5 communicated to the seed delivery means 4, plural seed sowing pipes 6 communicated to the seed carrying pipe 5 and plural mud agitation part 7 provided on the lower part of the respective seed sowing pipes 6. In this submerging direct sowing method for sowing the paddy rice seeds to the plowed and puddled submerged paddy field, the seeds for an amount adjusted from the seed housing part 3 are sown from the plural branched seed sowing pipes 6 to mud agitated by the mud agitation part 7, floated or raised in submergence.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a submerged direct sowing apparatus and a submerged direct sowing method for sowing rice seeds in submerged fields.

[0002]

2. Description of the Related Art Paddy rice direct sowing technology includes submerged direct sowing, eclectic direct sowing,
Three direct sowing technology systems of dry field direct sowing are known.

[0003] At present, there are known direct sowing systems of mechanical flooding, such as mechanical sowing, pneumatic feeding and spraying, and sowing by a backpack power spreader or helicopter.

Japanese Patent No. 250038 discloses a direct sowing apparatus for flooding.
According to No. 1, "In a submerged direct sowing device for sowing rice seeds in plowed and soaked submerged fields, a seed accommodation groove for accommodating and releasing seeds is provided on the outer periphery of a rotating body that rotates vertically. An accelerating plate for accelerating when the seeds are released in the circumferential direction by the rotation of the rotating body is provided in the seed accommodating groove, and the seeds accelerated and released by the rotation of the rotating body are guided to the rice field surface to have a substantially predetermined depth. And a direct sowing apparatus characterized by being sowed and sowed. "

Japanese Patent Application Laid-Open No. 5-146201 discloses a "grooving device for direct seeding", in which a grooving blade having a shallow groove forming blade provided on a rotating shaft and a deep groove forming blade provided on both sides thereof is used as a towing vehicle. Notches are provided in the peripheral portion of the shallow groove forming blade and the deep groove forming blade at a pitch of substantially equal angle, the traveling length of the towing vehicle per unit time is L1, and the circumference of the rotating shaft is L2. When the number of rotations of the grooving blade per unit time is N, N × L2> L1 is satisfied. "

[0006]

In the direct sowing method, the sowing is so-called loose sowing, and there is a problem that a passage required for management work after sowing cannot be secured. In addition, the sowing method using a helicopter or a backpack-type power spreader has disadvantages that seeding unevenness is large and seeding depth is shallow.

[0007] Further, in the case of row sowing, a passage for management work is secured unlike in the case of spraying, but there is a problem that the number of rice grains and the stocks are easily varied.

[0008] Among the direct sowing methods, the mechanical sowing method allows for sowing and the deepest sowing. However, the sowing depth was still small in some cases. If the seeding depth is shallow, there is a problem that the emerged seeds easily float on the flooded water due to the bad weather and are easily blown away. Further, if the seeding depth is shallow, the root development becomes insufficient, and there is a problem that the seeds easily fall down when they are fitted with a typhoon during cutting. Further, there is a problem that the bird is susceptible to damage by sowing during sowing.

[0009]

[Means for solving the problem] In order to solve this problem,
In a submerged direct sowing apparatus for sowing paddy rice seeds in a plowed / substituted flooded rice field, a seed storage unit, a seed feeding means provided on the discharge side of the seed storage unit, and a seed transport pipe communicating with the seed feeding means. And a plurality of seed sowing pipes communicating with the seed transport pipes, and a plurality of mud stirrers provided below each of the seed sowing pipes.

In a submerged direct sowing apparatus for sowing paddy rice seeds in a plowed and submerged paddy field, a seed storage hopper, a seed feeding means provided at the bottom of the seed storage hopper,
A seed transport pipe communicating with the seed unloading means, a plurality of seed sowing pipes communicating with the seed transport pipe and branching and opening in a vertical direction, and a plurality of mud stirring units provided below each of the plurality of seed sowing pipes. Each mud stirring section has a plurality of blade-like projections attached to a rotatable horizontal axis, and is stirred by the rotating blade-like projections, sowing the floating, floating or rising mud from a seed seeding tube. We propose a surface-stirring submerged direct sowing device.

In a submerged direct sowing method of sowing paddy rice seeds in a plowed and submerged paddy field, a controlled amount of seeds from a seed storage unit is stirred by a plurality of mud muds located below a plurality of seed sowing tubes. The present invention proposes a method of direct sowing with surface agitation, which is characterized by seeding on mud that rises, floats, or rises in the submerged water by being stirred by the section.

In a submerged direct sowing method of sowing paddy rice seeds in a plowed and submerged paddy field, seeds fed from a seed storage hopper via a seed feeding means are sent to a seed transport pipe, and a plurality of seeds are fed through the seed transport pipe. From the seed seeding pipe that branches into and opens vertically, a plurality of blade-like projections provided below each seed sowing pipe are stirred by a plurality of mud stirring parts attached to a rotatable horizontal axis to impregnate the submerged water. Sowing on floating, floating or rising mud, sedimenting the sown mud,
We propose a method of direct sowing with surface agitation that is characterized by being covered with mud.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a first embodiment of the present invention towed by a towing vehicle such as a tractor.
FIG. 2 which is also a front view, FIGS. 3 (a) and 3 (b) which are enlarged partial front views and cross-sectional views of a mud stirring section, FIG. 4 which is a cross-sectional explanatory view of seed feeding means, and FIG.
5 which is a side view of a tractor or the like of a tractor according to the embodiment, FIG. 6 which is also a front view, and FIG. 7 which is an explanatory view of a state where seeds are sown in mud floating in submerged water. I do.

FIGS. 1, 2 and 3 (a), 3
(B) The surface agitating and direct sowing apparatus 1a according to the first embodiment of the invention shown in FIG. 4 is detachably towed by a traveling towing vehicle A of a passenger management machine such as a tractor. It may be a device integrated with the car.

The surface layer stirring / flooding direct sowing apparatus 1a is connected to the traveling tractor A by the central frame 2a, and the blower 9 is driven via the first input mission 10 by the first PTO 100 as a drive connection mechanism. The center frame 2 a is a vertically long rectangular parallelepiped frame, is located at the rear center of the traveling towing vehicle A, and is connected and pulled by the lift linkage 20 so as to be vertically swingable. A seed storage hopper 3, which is a seed storage unit, is provided in the upper central portion of the central frame 2a, and a hook-shaped horizontal frame 2b is swingably supported by support springs 13 and 13 on the lateral side longer than the central frame 2a in the horizontal direction. Attached. The number of the seed storage hoppers 3 is one or more. In this embodiment, two storage hoppers 2 each having an upper part as a common storage part are provided, and a total of four seed storage hoppers 3 are arranged side by side. Each of the seed storage hoppers 3 is provided with a seed feeding means 4 at a position of a bottom which is a seed discharge side.

The seed feeding means 4 is provided in a narrow passage at the bottom of the seed storage hopper 3, and is provided with a seed feeding roll 4 between the seed feeding hopper 3 and the seed transport pipe 5. The seed unwinding roll 4 includes a rotating shaft 4a rotated by a motor 4b.
And a star-shaped rotator 4c having six protrusions in cross section is provided on the rotation shaft 4a. The star-shaped rotator 4c is made of a material such as a rubber material or a hard synthetic resin having an appropriate hardness that does not damage the seeds such as seeds, and has a curved inner wall surface of a huge space below a narrow passage at the bottom of the seed storage hopper 3. And feeds an appropriate amount of seed B such as seed rice into the seed transport pipe 5 by adjusting the rotation speed.

Each of the seed conveying pipes 5 has an upstream side communicating with one horizontal pipe, and a blow port 9 a of a blower 9.
Are branched from the horizontal pipes and merge with the lower end opening of the seed feeding means 4, and the downstream side from the merging position is supported and guided by the horizontal frame 2b. The seed transfer pipe 5 is a flexible pipe, and is connected and communicates with a straight seed dissemination pipe 6 that is provided at the downstream side and is branched in the vertical direction and that has an open lower end. In this embodiment, the interval between the seed sowing tubes 6 is 60 cm. As another embodiment, in the case of the embodiment in which the horizontal frame 2b is further extended in the left-right direction, the seed transport pipe 5 is supported and guided in the horizontal direction by the horizontal frame 2b, and It is also possible to branch a plurality of seed sowing tubes 6 at equal intervals midway.

Each seed sowing tube 6 is detachably connected at its upper end to the seed conveying tube 5 and communicates or is fixedly connected and communicated, and branches into an inverted Y-shaped bifurcated front view from the middle. Each downstream end has two seed sowing tube openings 6a. In this embodiment, the size of the opening of the seed sowing tube opening 6a may be such that the seed B is sowed to a width of about 10 cm when dropped on the flooded surface. The interval between the seed sowing tube openings 6a is 30 cm. As another embodiment, the downstream end is a seed sowing tube 6 divided into one or three or more seed sowing opening portions 6a, or a bifurcated tube branched into an inverted Y-shape when viewed from the front. Seed seeding tubes 6 with different intervals
It is desirable that a plurality of be prepared in accordance with the condition of the flooded paddy field and be provided detachably.

The mud stirrers 7 are located slightly below and directly ahead of the seed sowing pipe openings 6a in correspondence with the respective seed sowing pipe openings 6a.
Is provided. The plurality of mud stirring sections 7 are provided with a plurality of blade-like projections 7b fixed to a rotatable rotating horizontal shaft 7a. The rotatable rotary horizontal shaft 7a is rotatably mounted between left and right supports 8 provided rearward and downward from the left and right sides of the horizontal frame 2b. The rotating horizontal shaft 7a is connected to a motor 11 mounted at a position on one of the left and right sides of the horizontal frame 2b via a chain, a sprocket or a gear, and is rotated by the driving of the motor 11. 8a is a chain case.

The left and right support members 8 are substantially rectangular plate-shaped members, and are attached to the left and right sides of the horizontal frame 2b so as to be vertically swingable. 8b is a spring body,
b is attached to a support rod 8c projecting substantially horizontally rearward from the horizontal frame 2b so as to face slightly forward from the vertical, and is attached to the support body 8 at the lower part, and the support body 8 swings with respect to the horizontal frame 2b. . The mounting angle of the support 8 with the horizontal frame 2b can be changed depending on the mounting position with the spring body 8b.

A float 12 is provided outside each of the left and right supports 8. The float 12 may be a floating body. In this embodiment, the float 12 is formed of a sled-shaped floating body whose front is bent upward. The rotation horizontal shaft 7a is provided at a position lower than the bottom surface of the float 12 below the support body 8. In another embodiment, a structure without the float 12 may be used.

A large number of blade-like projections 7b are provided at substantially equal intervals on the rotating horizontal shaft 7a to form one mud stirring section 7, and a plurality of mud stirring sections 7 are provided in the longitudinal direction of the rotating horizontal axis 7a. Is provided. The position of each mud stirrer 7 is a position slightly ahead of the position directly below each seed sowing tube opening 6a,
The width is 10 to 30 cm. The blade-like projections 7b forming the mud stirring section 7 are individually fixed to the rotating horizontal shaft 7a with propeller-like plate-like members protruding slightly obliquely facing a plurality of different directions. The protruding length of each wing-shaped projection 7b only needs to be long enough to stir the cultivated surface C of the paddy field with the floats 12, 12 floating on the flooded water surface. The number of blade-like projections 7b forming one mud stirring section 7 is 12 in 3 rows and 4 rows in this embodiment, but is 3 rows to 6 rows or 4 in other embodiments. 3 rows to 6 rows of 9
It may be about 24 to 24 sheets.

The blower 9 is connected to the first PT of the traveling towing vehicle A via a sprocket 10a, a belt or a chain 10b, or the like.
Connect to input mission 10 that connects to O100,
It is rotationally driven by the rotational force of the PTO 100. Blower 9
Is connected to the upstream end of the seed transport pipe 5 at its outlet 9a.

FIGS. 5, 6 and 3 (a), 3
(B), FIG. 4 shows a second embodiment of the present invention. Second embodiment of the present invention, a surface-stirred / flooded direct sowing apparatus 1
b is removably towed by the traveling towing vehicle A of a passenger management machine such as a tractor, but may be integrated with the traveling towing vehicle.

The surface layer stirring / flooding direct sowing apparatus 1b is connected to the traveling tractor A by a central frame 2a, and has a second PTO 101 in addition to the first PTO 100 as a drive connection mechanism.
The drive horizontal shaft 14 is rotated through the drive shaft 5 and the rotary horizontal shaft 7a connected to the drive horizontal shaft 14 is rotated. Central frame 2
Reference numeral a denotes a vertically long rectangular parallelepiped frame, which is located at the rear center of the traveling towing vehicle A and is swingably connected and towed by the lift linkage 20. A seed storage hopper 3 serving as a seed storage unit is provided in the upper central portion of the central frame 2a, and a horizontal frame 2b longer than the central frame 2a in the left and right direction is attached to the rear by a support spring 13 so as to be vertically swingable. The number of the seed storage hoppers 3 is one or more. In this embodiment, two storage hoppers 2 each having an upper part as a common storage part are provided, and a total of four seed storage hoppers 3 are arranged side by side. A seed feeding means 4 is provided at the bottom of each seed storage hopper 3 on the discharge side.

The seed feeding means 4 is provided in a narrow passage at the bottom of the seed storage hopper 3 and is provided with a seed feeding roll 4 between the seed feeding pipe 4 and the seed feeding pipe 5. The seed unwinding roll 4 has a rotating shaft 4a that is rotated by a motor 4b, and the rotating shaft 4a is provided with a star-shaped rotating body 4c having six projections in cross section. The star-shaped rotator 4c is made of a material such as a rubber material or a hard synthetic resin having an appropriate hardness that does not damage the seeds such as seeds, and has a curved inner wall surface of a huge space below a narrow passage at the bottom of the seed storage hopper 3. And feeds an appropriate amount of seed B such as seed rice into the seed transport pipe 5 by adjusting the rotation speed.

Each of the seed conveying pipes 5 has an upstream side communicating with one horizontal pipe, and an air outlet 9 a of a blower 9.
Are branched from the horizontal pipes and merge with the lower end opening of the seed feeding means 4, and the downstream side from the merging position is supported and guided by the horizontal frame 2b. The seed transfer pipe 5 is a flexible pipe, and is connected and communicates with a straight seed dissemination pipe 6 that is provided at the downstream side and is branched in the vertical direction and that has an open lower end. In this embodiment, the interval between the seed sowing tubes 6 is 60 cm. As another embodiment, in the case of the embodiment in which the horizontal frame 2b is further extended in the left-right direction, the seed transport pipe 5 is supported and guided in the horizontal direction by the horizontal frame 2b, and It is also possible to branch a plurality of seed sowing tubes 6 at equal intervals midway.

Each seed dissemination tube 6 is detachably connected at its upper end to the seed transfer tube 5 and communicates or is fixedly connected and communicated, and branches into an inverted Y-shaped bifurcated front view from the middle. Each downstream end has two seed sowing tube openings 6a. In this embodiment, the size of the opening of the seed sowing tube opening 6a may be such that the seed B is sowed to a width of about 10 cm when dropped on the flooded surface. The interval between the seed sowing tube openings 6a is 30 cm. As another embodiment, the downstream end is a seed sowing tube 6 divided into one or three or more seed sowing opening portions 6a, or a bifurcated tube branched into an inverted Y-shape when viewed from the front. Seed seeding tubes 6 with different intervals
It is desirable that a plurality of be prepared in accordance with the condition of the flooded paddy field and be provided detachably.

The mud stirrers 7 are located slightly below and directly ahead of the seed dispenser openings 6a corresponding to the respective seed dispenser openings 6a.
Is provided. The plurality of mud stirring sections 7 are provided with a plurality of blade-like projections 7b fixed to a rotatable rotating horizontal shaft 7a. The rotatable rotary horizontal shaft 7a is rotatably mounted between left and right supports 8 provided rearward and downward from the left and right sides of the horizontal frame 2b.

The left and right support members 8 are substantially rectangular plate-like members, and are attached to the left and right sides of the horizontal frame 2b so as to be vertically swingable. 8b is a spring body,
b is attached to a support rod 8c projecting substantially horizontally rearward from the horizontal frame 2b so as to face slightly forward from the vertical, and is attached to the support body 8 at the lower part, and the support body 8 swings with respect to the horizontal frame 2b. . The mounting angle of the support 8 with the horizontal frame 2b can be changed depending on the mounting position with the spring body 8b.

A float 12 is provided outside each of the left and right supports 8. The float 12 may be a floating body. In this embodiment, the float 12 is formed of a sled-shaped floating body whose front is bent upward. The rotation horizontal shaft 7a is provided at a position lower than the bottom surface of the float 12 below the support body 8. Further, as another embodiment, a structure without the float 12 may be used.

The rotating shaft 7a is connected to a driving shaft 14 parallel to the rotating shaft 7a via sprockets or gears provided on one or both of the right and left supports 8 and a chain or belt. The driving abscissa 14 is connected to the second PTO 101 via a second input mission 15 at a central portion in the lateral direction, rotates by driving the second PTO 101, and transmits a rotational force to the rotating abscissa 7a. A plurality of blade-like projections 7b are provided at substantially equally spaced positions on the rotating horizontal shaft 7a to form one mud stirring section 7, and a plurality of mud stirring sections 7 are provided in the longitudinal direction of the rotating horizontal axis 7a. The position of each mud stirrer 7 is slightly forward of the position immediately below each seed sowing tube opening 6a, and has a width of 10 to 30 cm.

Blade-like projection 7b forming mud stirring section 7
The propeller-like plate-like members, each of which protrudes slightly obliquely, are individually fixed to the rotating horizontal shaft 7a in a plurality of different directions. The protruding length of each wing-like projection 7b is determined in such a manner that the floats 12 and 12 float on the flooded water surface,
Any length that can stir is sufficient. The number of blade-like projections 7b forming one mud stirring section 7 is 3 in this embodiment.
Although it is composed of 12 sheets of 4 rows, as another embodiment, about 9 to 24 sheets of 3 rows to 6 rows or 4 rows of 3 to 6 rows may be used.

The blower 9 is connected to the first PTO 100 of the traveling vehicle A via a sprocket 10a, a belt or a chain 10b, a first input transmission 10, and the like, and is driven to rotate.
The blower 9 is connected to the upstream end of the seed transport pipe 5 at the outlet 9a.

Next, an embodiment of the method for directly seeding and submerging the surface layer according to the present invention will be described with reference to FIGS. Surface seeding flooding direct sowing device 1 connected to or integrated with traveling tractor A
The seed B of the amount adjusted from the seed storage hopper 3 which is a seed storage unit provided at the surface of the submerged till surface C by the mud stirring unit 7 from the seed seeding tube 6 branched into a plurality through the seed transport tube 5. Is agitated, so that the seeds are sowed on the surface of a band-shaped mud D having a predetermined width which floats, floats or protrudes from the cultivated surface C in submerged water.

An appropriate amount of seed B, such as seed rice, adjusted by seed feeding means 4 provided at the bottom, which is the discharge side of seed storage hopper 3, is continuously fed into seed transport pipe 5. The number of seeds adjusts the rotation speed of the rotating shaft 4b of the seed feeding roll 4 in consideration of the traveling speed, the blowing speed of the blower 9, and the like. The seed transport pipe 5 receives the air from the blower 9 and sends the seed B into the seed transport pipe 5.
Flows downstream due to the wind power. Seed B
Further enters the seed seeding pipe 6 branched into a plurality of streams downstream of the seed transport pipe 5, and is blown downward from a seed seeding pipe opening 6 a having a lower part that is linear and opened in a vertical direction, and vigorously strikes the surface of the mud D. Seeded.

The band-shaped mud D is sowed vigorously from the seed sowing opening 6a by the mud agitating portion 7 slightly deviated from the position directly below the seed sowing opening 6a in the traveling direction. It is formed by stirring the flooded tillage surface C slightly earlier in time than when it is done. Therefore, when the seeds B are vigorously discharged onto the flooded water and sown, the mud D becomes a lump of various shapes and floats or / and floats, or / and rises in the water. Therefore, the seed B enters the mud from the surface of the mass of the mud D with a high probability, or adheres considerably deeper than the mud surface.

Further, the mud D into which the seed B has entered is settled in the submerged state by its own weight, and is further covered and covered with various stirred mud. In this embodiment, the thickness of the soil covering the mud D is 5 mm to 15 mm.
mm.

The seed sowing tube opening 6a and the mud stirrer 7 are provided with a plurality of them at substantially equal intervals in the horizontal direction, respectively. Many rows are formed. In this embodiment, the interval between the seed sowing pipes 6 is 60 cm, and the interval between the bifurcated seed sowing opening 6 a is 30 cm. Therefore, the mutual spacing between each seed sowing opening 6 a. All about 30
cm. The seed B is provided at the seed sowing tube opening 6a at this interval.
Since the seeds are sowed in a band shape with a width of about 10 cm, a non-seeding band of about 20 cm is formed between the mutually sowed sowing bands, thereby forming a work passage for the worker. The width of the sowing zone and the width of the passage can be changed by changing the type of the seed sowing plant 6 according to the situation of the flooded paddy field.

The state of stirring of the surface layer of the flooded tillage surface C is adjusted by adjusting the height of the rotating horizontal shaft 7a of the mud stirring unit 7 from the tillage surface. Depending on how deeply the wing-like projections 7b of the mud stirring section 7 are inserted into the cultivation surface C, the size, shape and state of the formed mud D change and float or / and float in water. / And uplift. Accordingly, the surface stirring state of the tillage surface C is performed after adjusting the height of the rotating horizontal shaft 7a of the mud stirring section 7 and appropriately positioning the same.

The height of the rotating horizontal shaft 7a can be adjusted by changing the support angle of the support 8 with the horizontal frame 2b or by changing the height at which the float 12 is mounted on the support 8.

[0042]

According to the present invention, seeds are sown vigorously on the mud surface which has been stirred, floated, floated or raised from the cultivated surface of a flooded paddy field.
Further, when the mud is settled by its own weight with the passage of time, the mud is covered with a suitable thickness by other agitated mud and becomes covered. Therefore, the flow and floating of the seeds due to wind, rain and the like are extremely small, and the damage by birds can be prevented.

Furthermore, since the seeding depth is ensured by the covering soil, the roots are well grown after emergence, and the lodging resistance is improved.

Further, by providing a plurality of seed sowing tube openings and corresponding mud stirrers in the horizontal direction at substantially equal intervals, the seeds can be sowed in an appropriate width and a passage required for management work after sowing is secured. .

Further, by adjusting the seed feeding means and the blower blowing air, the seeds are sown in an amount adjusted according to the situation, so that uniform sowing can be performed.

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment of the present invention in which a vehicle is towed by a traveling tow vehicle such as a tractor.

FIG. 2 is a front view of FIG. 1;

FIG. 3A is a partial front view of a mud stirring section. FIG.

FIG. 4 is an enlarged cross-sectional explanatory view of the seed feeding means.

FIG. 5 is a side view of a second embodiment of the present invention in a state where the vehicle is towed by a traveling tractor such as a tractor.

6 is a front view of FIG.

FIG. 7 is an explanatory view of mud and seeds in a state of being sown by floating in flooded water.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 surface stirring and direct flooding device 2a central frame 2b horizontal frame 3 seed storage hopper (seed storage part) 4 seed feeding means (seed feeding roll) 4a rotating shaft 4b motor (of seed feeding means) 4c star rotating body 5 seed transport Pipe 6 seed seeding pipe 6a seed seeding pipe opening 7 mud stirring part 7a rotating horizontal axis 7b wing-like projection 8 support body 8a chain case 8b spring body 8c support rod 9 blower 9a air outlet 10 first input mission 10a sprocket 10b belt or Chain 11 Motor (of rotating horizontal axis) 12 Float 13 Support spring 14 Drive horizontal axis 15 Second input mission 100 First PTO 101 Second PTO 102 Lift linkage A Traveling tractor B Seed C Flooded tillage surface D Mud

 ──────────────────────────────────────────────────続 き Continuing from the front page (71) Applicant 000183842 Hatsuta Kogyo Co., Ltd. 1-439 Chisen, Nishiyodogawa-ku, Osaka-shi, Osaka (72) Inventor Hiroshi Nishimura 1-40-2 Nisshincho, Omiya-shi, Saitama Within the Specified Industrial Technology Research Promotion Organization (72) Kazunobu Hayashi 1-40-2 Nisshin-cho, Omiya City, Saitama Prefecture Within the Specified Industrial Technology Research Promotion Organization (72) Inventor Takashi Goto 1-40 Nisshincho, Omiya City, Saitama Prefecture Address 2 Inside the Research Institute for Specified Biotechnology (72) Inventor Mitsuhiro Horio 1-40-2 Nisshincho, Omiya City, Saitama Prefecture Inside the Research Institute for Biotechnology, (72) Inventor Tomohiko Ichikawa Nisshin, Omiya City, Saitama Prefecture 1-chome, 2-cho, Biological System-Specific Industrial Technology Research Promotion Organization (72) Inventor Susumu Miyashita 1-7-2, Suehirocho, Ome-shi, Tokyo Company Kyoritsu (72) Inventor Yoshiaki Hironaka 1-7-2, Suehirocho, Ome City, Tokyo, Japan Stock Company Kyoritsu (72) Inventor Nobuyuki 1-7-2, Suehirocho, Ome City, Tokyo Stock Company, Kyoritsu (72 ) Inventor Kenji Nogami 1 Rinosawa, Sanbongi, Towada-shi, Aomori 259 Inside Sasaki Corporation (72) Inventor Ryoji Kuji 1-Rinosawa, Sanbongi, Tonoda-shi, Aomori 259 Sasaki Corporation (72 ) Inventor Hatsuda Kogyo Co., Ltd. 1-39 Chisen, Nishiyodogawa-ku, Osaka-shi, Osaka

Claims (4)

[Claims] 1. A submerged direct sowing apparatus for sowing paddy rice seeds in a plowed and submerged paddy field, comprising: a seed storage unit; a seed feeding means provided on a discharge side of the seed storage unit; and a seed feeding means. A surface-stirred submerged direct sowing apparatus comprising: a seed conveying pipe communicating with the seed conveying pipe; a plurality of seed sowing pipes communicating with the seed conveying pipe; and a plurality of mud stirrers provided below the respective seed sowing pipes. 2. A submerged direct sowing apparatus for sowing paddy rice seeds in a plowed and submerged paddy field, wherein the seed storage hopper, a seed feeding means provided at the bottom of the seed storage hopper, and a seed feeding means are communicated. A seed transport pipe, a plurality of seed sowing pipes that are branched and open vertically in communication with the seed transport pipe, and a plurality of mud stirring units provided below each of the plurality of seed sowing pipes, respectively. The mud stirrer is characterized in that a plurality of wing-shaped protrusions are attached to a rotatable horizontal axis, and the turbidity is stirred by the rotating wing-shaped protrusions, so that the mud rising, floating, or rising is seeded from a seed seeding tube. Water direct sowing equipment. 3. A submerged direct sowing method of sowing paddy rice seeds in a plowed and submerged flooded paddy field, wherein a plurality of seeds adjusted in an amount adjusted from a seed storage unit are placed below a plurality of seed sowing pipes. A method of direct sowing in a surface layer agitation flooding characterized by sowing in a mud that is stirred by a mud agitation unit and floats, floats or rises in the submerged water. 4. A submerged direct sowing method of sowing paddy rice seeds in a plowed and submerged paddy field, wherein seeds fed from a seed storage hopper via a seed feeding means are sent to a seed transport pipe, and the seed transport pipe is provided. From a seed seeding pipe that branches into a plurality of through-holes and is vertically opened, is stirred and impregnated by a plurality of mud stirrers provided below each of the seed sowing pipes and provided with a plurality of wing-like projections mounted on a rotatable horizontal axis. Levitating underwater,
A method of direct sowing with surface stirring and flooding, wherein the sowing is carried out on a floating or rising mud, and the sowed mud is settled and covered with mud.