JPH10286003A - Chisel plow, fertilizer applicator and seed-sowing machine - Google Patents
Chisel plow, fertilizer applicator and seed-sowing machineInfo
- Publication number
- JPH10286003A JPH10286003A JP9762997A JP9762997A JPH10286003A JP H10286003 A JPH10286003 A JP H10286003A JP 9762997 A JP9762997 A JP 9762997A JP 9762997 A JP9762997 A JP 9762997A JP H10286003 A JPH10286003 A JP H10286003A
- Authority
- JP
- Japan
- Prior art keywords
- soil
- seed
- chisel
- fertilizer
- sowing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Soil Working Implements (AREA)
- Fertilizing (AREA)
- Sowing (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、春の融雪期や、初
冬の根雪前における湿潤で凍結した土壌条件で高能率に
耕うんしながら施肥し、播種すると共に砕土・覆土を一
工程で行うチゼルプラウ・施肥・播種装置に関するもの
である。BACKGROUND OF THE INVENTION The present invention relates to a chisel plow, which performs fertilization while cultivating with high efficiency under humid and frozen soil conditions in the snow-melt season in spring and in the early winter before snowfall, sowing, and crushing and covering soil in one step. The present invention relates to a fertilizer / seeding apparatus.
【0002】[0002]
【従来の技術】従来、春播き小麦は春季の融雪後に圃場
を耕うんして播種していた。しかし、融雪期は圃場が湿
潤で乾燥しづらく、積雪量や融雪期の天候によっては播
種が大幅に遅れることが頻繁にある。そのため、小麦が
登熟不良になりやすく収量や品質が極めて不安定であ
り、春播き小麦は作付面積が低水準にとどまっている。
そこで、播種を前年の根雪前に行うことにより栽培期間
を長くし、登熟を促進して収量と品質の向上を目的とし
た根雪前播種方法が案出された。2. Description of the Related Art Conventionally, spring-sown wheat has been sown by cultivating a field after melting snow in spring. However, during the snowmelt season, the fields are wet and difficult to dry, and sowing is often greatly delayed depending on the amount of snow and the weather during the snowmelt season. For this reason, wheat tends to be poor in ripening, and the yield and quality are extremely unstable, and the planting area of spring-sown wheat is low.
Therefore, a sowing method before root snow was devised to extend the cultivation period by performing sowing before the root snow of the previous year, promote ripening, and improve yield and quality.
【0003】[0003]
【発明が解決しようとする課題】しかし、根雪前におい
ては圃場が湿潤であり、従来のロータリ耕うん作業機で
耕うん・砕土作業を行おうとしても、湿潤土壌が耕うん
・砕土爪に付着して土壌を練ってしまうため、耕うん・
砕土作業が困難で、また作業速度も遅く、実用的な播種
方法ではなかった。However, before the deep snow, the field is moist, and even if the conventional rotary tillage machine is used for tilling and crushing, the humid soil adheres to the tilling and crushing nails. Cultivating
The work of crushing soil was difficult and the working speed was slow, so it was not a practical sowing method.
【0004】そこで本発明は、湿潤な土壌条件でも小麦
の播種に適した耕うん・砕土性(土塊径2cm以下の小
径土壌の重量割合が50%以上)と覆土(数cm以下)
を行うことができるチゼルプラウ・施肥・播種装置を提
供することを目的とする。[0004] Therefore, the present invention provides tillage and crushing properties (weight ratio of small-diameter soil having a soil mass of 2 cm or less is 50% or more) suitable for sowing wheat even in wet soil conditions, and covering soil (several cm or less).
It is an object of the present invention to provide a chisel plow / fertilizer application / seeding apparatus capable of performing the above-mentioned.
【0005】[0005]
【課題を解決するための手段】上記の目的を達成するた
めに本発明は、所定幅にわたって圃場に施肥する施肥機
構と、所定幅にわたって圃場に播種する播種機構とを前
後に有する施肥・播種装置において、上記施肥機構及び
播種機構のそれぞれ下方前側に圃場を耕うんする多数の
チゼル爪を配設し、これらチゼル爪の後方に上記播種機
構から繰り出される種子を分散して圃場に散播する種子
分散板を設け、この種子分散板の後方に上記チゼル爪に
より耕うんされた土壌表面を砕土すると共に、種子と土
壌を混和し覆土する砕土・覆土ローラを設けたことを特
徴としている。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a fertilizing / seeding apparatus having a fertilizing mechanism for fertilizing a field over a predetermined width and a sowing mechanism for sowing the field over a predetermined width. In the seed dispersing plate, a large number of chisel claws for cultivating the field are arranged on the lower front side of the fertilizing mechanism and the seeding mechanism, respectively, and the seeds fed from the seeding mechanism are dispersed behind the chisel claws and disseminated in the field. In addition to the above-mentioned seed dispersing plate, there is provided a crushing / covering soil roller for crushing the soil surface plowed by the chisel claws and mixing and covering the seed and soil.
【0006】[0006]
【作用】上記の構成により本発明のチゼルプラウ・施肥
・播種装置は、施肥機構及び播種機構の前側に配置され
た多数のチゼル爪により圃場を簡易耕起し、施肥機構に
より肥料を所定量繰り出し地表面に散布・施用し、施肥
機構後方の播種機構により種子を所定量繰り出して種子
分散板により均−に分散して地表面に散播し、播種機構
の後方に配置された砕土・覆土ローラにより表層の土塊
を砕土すると共に、砕かれた土と種子を混和して覆土す
る一連の作業を、一行程で、しかも高速で行う。With the above arrangement, the chisel plow, fertilizer application and sowing apparatus of the present invention simply plows a field with a fertilizer mechanism and a large number of chisel claws arranged in front of the seeder mechanism, and a predetermined amount of fertilizer is fed out by the fertilizer mechanism. Spreading and application to the surface, seeding out a predetermined amount by the seeding mechanism behind the fertilizer application mechanism, uniformly dispersed by the seed dispersing plate, scattered on the ground surface, and the surface layer by the crushing and covering soil rollers arranged behind the seeding mechanism A series of operations to crush the soil mass and mix the crushed soil and seeds to cover the soil are performed in one stroke and at a high speed.
【0007】[0007]
【発明の実施の形態】以下、本発明の一実施の形態を、
図面を参照して具体的に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described.
This will be specifically described with reference to the drawings.
【0008】図1において、符号1は農用トラクタで、
このトラクタ1の後部に図示しない3点リンクヒッチを
介して本発明に係るチゼルプラウ・施肥・播種装置2を
連結している。このチゼルプラウ・施肥・播種装置2
は、図2に詳細に示すように、前部に上記トラクタ1の
3点リンクヒッチに連結されるロアリンクヒッチピン3
及びトップマスト4を有する本体フレーム5に、耕うん
部6、施肥部7、播種部8、砕土・覆土部9等を装着し
ている。In FIG. 1, reference numeral 1 denotes an agricultural tractor.
The chisel plow / fertilizer application / seeding device 2 according to the present invention is connected to the rear of the tractor 1 via a three-point link hitch (not shown). This chisel plow / fertilizer / seeding device 2
As shown in detail in FIG. 2, a lower link hitch pin 3 connected to a three-point link hitch of the tractor 1 is provided at the front.
A tillage section 6, a fertilizer application section 7, a seeding section 8, a crushing / covering soil section 9, and the like are mounted on a main body frame 5 having a top mast 4.
【0009】上記耕うん部6は、施肥部7及び播種部8
の下方前側に、左右方向に4本の施肥用チゼル爪10及
び5本の播種用チゼル爪11を前後に設けている。これ
らチゼル爪10及び11は、前後方向には重ならず、左
右方向に適当な間隔(この実施例では25cm)を有し
て配置され、卜ラクタ1により牽引されることによりチ
ゼル爪10及び11が土壌を引っかくようにして深さ約
20cmまで耕うんするようになっている。The cultivating unit 6 includes a fertilizing unit 7 and a sowing unit 8.
On the lower front side, four chisel nails 10 for fertilization and five chisel nails 11 for sowing are provided in the front-rear direction. The chisel claws 10 and 11 do not overlap in the front-rear direction, are arranged at an appropriate interval in the left-right direction (in this embodiment, 25 cm), and are pulled by the retractor 1 so that the chisel claws 10 and 11 are pulled. Is cultivated to a depth of about 20 cm by scratching the soil.
【0010】上記施肥部7は、肥料ホッパ12、肥料繰
出ローラ部13、肥料導管14などを備え、肥料繰出ロ
ーラ部13に、接地駆動輪15からの回転動力をチェン
伝動系16を介して受け、肥料ホッパ12に収容された
粉状または粒状肥料を一定量ずつ繰り出して肥料導管1
4より排出し、上記施肥用チゼル爪10及び播種用チゼ
ル爪11により耕うんされた土壌表面に散布する。The fertilizer application section 7 includes a fertilizer hopper 12, a fertilizer feeding roller section 13, a fertilizer conduit 14, and the like. The fertilizer feeding roller section 13 receives rotation power from a ground drive wheel 15 via a chain transmission system 16. The powdery or granular fertilizer contained in the fertilizer hopper 12 is fed out by a fixed amount, and the fertilizer conduit 1
4 and sprayed on the surface of the soil cultivated by the chisel claw 10 for fertilization and the chisel claw 11 for sowing.
【0011】上記播種部8は、種子ホッパ17、種子繰
出ローラ部18、種子導管19、種子分散板20などを
備え、種子繰出ローラ部18に上記肥料繰出ローラ部1
3からチェン伝動系21を介して動力を受け、種子ホッ
パ17に収容された種子(小麦)を一定量ずつ繰り出し
て種子導管19より種子分散板20上に落下させる。種
子分散板20は平面板体の上面に多数の釘20aがラン
ダムに打たれたものであり、種子は釘20aに当たるこ
とにより適度に分散され、上記播種用チゼル爪11によ
り耕うんされた土壌表面に均−に落下する。また、種子
分散板20を取り外すことにより条播種も可能である。The seeding section 8 includes a seed hopper 17, a seed feeding roller section 18, a seed conduit 19, a seed dispersion plate 20, and the like.
The seeds (wheat) contained in the seed hopper 17 are fed out by a fixed amount at a time, and are dropped from the seed conduit 19 onto the seed dispersion plate 20. The seed dispersing plate 20 is formed by randomly arranging a large number of nails 20a on the upper surface of a flat plate body. The seeds are appropriately dispersed by hitting the nails 20a, and the seeds are dispersed on the soil surface plowed by the sowing chisel claw 11. Fall uniformly. Also, by sowing the seed dispersion plate 20, it is possible to sow seeds.
【0012】上記砕土・覆土部9は、本体フレーム5の
後端部に、先端部が上下回動可能に支持された左右一対
の支持アーム22の後端部に、かご型の砕土・覆土用ロ
ーラ23を軸支したものである。また、この砕土・覆土
用ローラ23の上側の支持アーム22,22間に重錘2
4が設けられており、砕土・覆土用ローラ23に荷重を
負荷している。そして、機体の進行により砕土・覆土用
ローラ23が転動し、大きな土塊は砕土され、砕かれた
土壌は小麦種子と混和して適度な覆土となり、その覆土
深さはほぼ1〜2cmとなる。なお、土壌の種類や水分
に応じて重錘24の重量を増減させての荷重を調整し、
砕土・覆土用ローラ23の砕土性を適正に維持すること
が可能である。The crushing / covering section 9 is provided with a cage type crushing / covering soil at the rear end of the main body frame 5 and at the rear end of a pair of left and right support arms 22 whose front ends are vertically rotatably supported. The roller 23 is pivotally supported. In addition, the weight 2 is placed between the support arms 22 on the upper side of the crushing / covering roller 23.
4 are provided to apply a load to the roller 23 for crushing and covering soil. Then, as the fuselage advances, the crushing / covering roller 23 rolls, the large soil mass is crushed, and the crushed soil mixes with the wheat seeds to form an appropriate cover, and the cover depth becomes approximately 1-2 cm. . In addition, the load by adjusting the weight of the weight 24 according to the type and moisture of the soil is adjusted,
It is possible to appropriately maintain the crushing property of the crushing and covering roller 23.
【0013】このような構成のチゼルプラウ・施肥・播
種装置2においては、農用トラクタ1に装着されて、根
雪前の圃場に導入されて作業を行う。トラクタ1により
牽引されてチゼルプラウ・施肥・播種装置2が移動する
と、施肥用チゼル爪10及び播種用チゼル爪11によっ
て圃場が簡易耕起され、その上に施肥部7及び播種部8
により施肥・播種が行われる。播種部8の種子導管19
から繰り出された種子は、種子分散板20により均−に
分散して地表面に散播し、砕土・覆土ローラ23により
表層の土塊を砕土すると共に、砕かれた土と種子を混和
して覆土する。In the chisel plow / fertilizer application / seeding apparatus 2 having such a configuration, the work is mounted on the agricultural tractor 1 and introduced into a field before snowfall to perform work. When the chisel plow / fertilizer application / seeding device 2 moves by being pulled by the tractor 1, the field is simply plowed by the fertilizer chisel claw 10 and the seeder chisel claw 11, and the fertilizer 7 and the seeder 8 are placed thereon.
Fertilization and sowing are carried out. Seed conduit 19 of sowing section 8
Are distributed uniformly by the seed dispersing plate 20 and scattered on the ground surface, and the soil is crushed by the crushing / covering roller 23, and the crushed soil and the seed are mixed to cover the soil. .
【0014】表1は本発明によるチゼルプラウ・施肥・
播種装置2の試作機の砕土性を市販のチゼルプラウ及び
ロータリ耕うん作業機と比較したものである。Table 1 shows the chisel plow, fertilizer and fertilizer according to the present invention.
It is a comparison of the soil breaking property of the prototype of the seeding apparatus 2 with a commercially available chisel plow and a rotary tillage machine.
【表1】 [Table 1]
【0015】1)市販のチゼルプラウは土壌を大きく掘
り起こすため耕起した土塊が大きく、小麦の播種床の評
価指標となる砕土率(土塊径2cm以下の小径土壌の重
量割合、小麦では50%以上が望ましい)は41.2%
と低かった。 2)ロータリ耕うん作業機では2cm以下の小土塊の分
布割合は54.3%であった。ただし、ロータリ耕うん
作業機は湿潤な土壌では土壌を練るため、土壌が塑性化
して団子状になり、作業を継続すると土壌が機体に付着
して走行困難となった。1) Commercially available chisel plows have large cultivated soil masses to excavate soil greatly, and the crushing rate (weight ratio of small-diameter soil having a soil mass diameter of 2 cm or less; Desirable) is 41.2%
Was low. 2) In the rotary tillage implement, the distribution ratio of the small lumps of 2 cm or less was 54.3%. However, since the rotary tillage work machine kneads the soil in wet soil, the soil plasticizes and becomes a dumpling, and when the work is continued, the soil adheres to the machine body and traveling becomes difficult.
【0016】3)試作機はチゼル爪10,11で土壌を
引っかいて耕起した後、砕土・覆土ローラ23により大
きい土塊を破砕するため砕土率は57.8%となり、ロ
ータリ耕うん作業機よりも砕土性は良好となった。 4)試作機は作業速度が約0.84m/sと、ロータリ
耕うん作業機の作業速度0.42m/sに比べて2倍以
上であり、高速作業が可能である。さらに、本試作機で
耕うんした土壌の孔隙率は、ロータリ耕うん作業機を使
用した場台に比べて高く、通気性や排水性も良好と判断
される。3) The prototype machine plows the soil with the chisel claws 10 and 11 and then plows it, and then crushes the large soil mass by the crushing and covering roller 23, so that the crushing rate becomes 57.8%, which is lower than that of the rotary tilling work machine. The crushability was improved. 4) The working speed of the prototype machine is about 0.84 m / s, which is more than twice the working speed of the rotary tillage working machine of 0.42 m / s, and high-speed work is possible. Furthermore, the porosity of the soil cultivated by this prototype is higher than that of the platform using the rotary cultivator, and the air permeability and drainage are judged to be good.
【0017】図3は、各作業機の土壌含水比に対する砕
土率の関係を示したものである。含水比40〜70%d
bの範囲内において、 1)市販のチゼルプラウはロータリ耕うん作業機と比べ
て砕土率が低く、砕土性が劣っている。 2)試作機は、調査点数が少ないものの、砕土・覆土ロ
ーラ23の効果によりロータリ耕うん作業機並の砕土性
があると推察される。従って、本試作機を使用すること
により、根雪前の湿潤な土壌条件においても能率良く作
業を行うことが可能と判断される。FIG. 3 shows the relationship between the soil water content of each working machine and the crushing rate. Water content 40-70% d
Within the range of b, 1) Commercial chisel plows have a lower soil crushing rate and are inferior in soil crushing properties as compared with a rotary tillage machine. 2) Although the prototype machine has a small number of survey points, it is presumed that due to the effect of the crushing and covering soil roller 23, the crushing property is equivalent to that of a rotary tillage machine. Therefore, it is judged that the use of this prototype makes it possible to work efficiently even under humid soil conditions before snowfall.
【0018】本試作機の特徴は、チゼル爪10,11に
より圃場を荒く耕うんして表面に均一に小麦等を散播し
ておき、重錘24により荷重を負荷したかご型の砕土・
覆土ローラ23により大きい土塊を砕きこの土により小
麦等を覆土するところにある。この方式により高速で作
業を行っても適度な砕土と覆土が可能で、小麦等に適し
た播種床を形成することができる。The feature of this prototype is that the field is roughly cultivated by the chisel claws 10 and 11, the wheat and the like are uniformly scattered on the surface, and the weight 24 applies a load to the cage-shaped crushed clay.
The soil covering roller 23 crushes a large earth mass and covers the wheat and the like with the soil. With this method, even if the work is performed at a high speed, appropriate crushing and covering can be performed, and a seeding bed suitable for wheat or the like can be formed.
【0019】また、チゼル爪10,11による耕うん方
式はロータリ耕うん方式に比べて播種床の空隙率が高く
なり、排水が良好となるため、積雪期および融雪期に小
麦等が湿害を受けにくくなる。さらに、本試作機は1回
の作業により、耕うん・施肥・播種・砕土・覆土を同時
に行うため、高能率的であり、初冬の根雪前や春の融雪
期のような天候が不安定で作業適期が限られた時期に迅
速に作業を行うことができる。In the tillage method using the chisel claws 10 and 11, the porosity of the seeding bed is higher and the drainage is better than in the rotary tillage method, so that wheat and the like are less susceptible to moisture damage during the snowy season and the snowmelt season. Become. In addition, this prototype machine is highly efficient because it performs tillage, fertilization, sowing, crushing, and covering soil simultaneously in one operation, and the weather is unstable due to unstable weather such as before the deep snow in early winter or during the snow melting season in spring. Work can be performed quickly at a limited time.
【0020】[0020]
【発明の効果】以上説明したように本発明のチゼルプラ
ウ・施肥・播種装置によれば、上記の構成によって根雪
前のような湿潤な土壌条件においても高能率に耕うん・
施肥・播種作業を行うことができる。これまで、春播き
小麦の根雪前播種方法は、慣行の春播種方法に比べて収
量や品質が向上することが明らかになっていたにもかか
わらず、従来のロータリ耕うん作業機を使用した作業方
法では湿潤な土壌に対する適応性が低く、根雪前播種方
法を普及させることができなかったのに対し、本発明の
装置を用いた春播小麦の根雪前播種方法においては、こ
れまでの諸問題を解決し、実用的な作業方法として確立
されたことにより、一般農家へ普及させることが容易に
なった。As described above, according to the chisel plow / fertilizer application / seeding apparatus of the present invention, the above-described configuration enables efficient tillage / cultivation even in humid soil conditions such as before snowfall.
Fertilization and sowing work can be performed. Until now, it has been shown that the yield and quality of spring-sown wheat before root snow can be improved compared to conventional spring-sown methods, but the method of operation using a conventional rotary tillage machine In contrast, the method of seeding before snow-covering was not able to spread because of poor adaptability to wet soil, whereas the method of sowing spring-seed wheat using the device of the present invention solved various problems up to now. However, by establishing it as a practical work method, it became easy to spread it to general farmers.
【図1】本発明によるチゼルプラウ・施肥・播種装置を
トラクタに装着した状態の後方からの斜視図である。FIG. 1 is a perspective view of a chisel plow / fertilizer application / seeding device according to the present invention mounted on a tractor as viewed from the rear.
【図2】本発明によるチゼルプラウ・施肥・播種装置の
側面図である。FIG. 2 is a side view of a chisel plow / fertilizer application / seeding apparatus according to the present invention.
【図3】土壌含水比と砕土率を示すグラフである。FIG. 3 is a graph showing a soil water content and a crushed soil ratio.
1 農用トラクタ 2 チゼルプラウ・施肥・播種装置 3 ロアリンクヒッチピン 4 トップマスト 5 本体フレーム 6 耕うん部 7 施肥部 8 播種部 9 砕土・覆土部 10 施肥用チゼル爪 11 播種用チゼル爪 12 肥料ホッパ 13 肥料繰出ローラ部 14 肥料導管 15 接地駆動輪 16,21 チェン伝動系 17 種子ホッパ 18 種子繰出ローラ部 19 種子導管 20 種子分散板 20a 種子分散用の釘 22 支持アーム 23 砕土・覆土ローラ 24 重錘 DESCRIPTION OF SYMBOLS 1 Agricultural tractor 2 Chisel plow / fertilizer application / seeding device 3 Lower link hitch pin 4 Top mast 5 Main frame 6 Tillage part 7 Fertilizer application part 8 Seeding part 9 Crushed soil / cover soil part 10 Chisel nail for fertilization 11 Chisel nail for seeding 12 Fertilizer hopper 13 Fertilizer fertilizer Roller part 14 Fertilizer conduit 15 Ground drive wheel 16, 21 Chain transmission system 17 Seed hopper 18 Seed feeding roller part 19 Seed conduit 20 Seed dispersing plate 20a Seed dispersing nail 22 Support arm 23 Crushing and covering soil roller 24 Weight
フロントページの続き (72)発明者 栗崎 弘利 北海道美唄市西4条南1 農試宿舎3−2 (72)発明者 渡辺 治郎 長野県小諸市大字加増832−1 草試宿舎 102 (72)発明者 菅野 輝雄 北海道札幌市豊平区羊ケ丘1番地 農試宿 舎B12−1 (72)発明者 竹下 定男 北海道札幌市豊平区羊ケ丘1番地 農試宿 舎E9−2Continuing on the front page (72) Inventor Hirotoshi Kurizaki 1st farming camp 3-2, Nishi 4-jo Minami, Bibai, Hokkaido 3-2 (72) Inventor Jiro Watanabe 832-1 Kazumasa Oaza, Komoro-shi, Nagano Pref. 102 (72) Inventor Sugano Teruo Agricultural Experiment Station Building B12-1 No. 1, Hitsugaoka, Toyohira-ku, Sapporo, Hokkaido, Japan
Claims (1)
構と、所定幅にわたって圃場に播種する播種機構とを前
後に有する施肥・播種装置において、 上記施肥機構及び播種機構のそれぞれ下方前側に圃場を
耕うんする多数のチゼル爪を配設し、これらチゼル爪の
後方に上記播種機構から繰り出される種子を分散して圃
場に散播する種子分散板を設け、この種子分散板の後方
に上記チゼル爪により耕うんされた土壌表面を砕土する
と共に、種子と土壌を混和し覆土する砕土・覆土ローラ
を設けたことを特徴とするチゼルプラウ・施肥・播種装
置。1. A fertilizer / seeding apparatus having a fertilizing mechanism for fertilizing a field over a predetermined width and a sowing mechanism for sowing a field over a predetermined width, wherein the field is cultivated below and forward of the fertilizing mechanism and the sowing mechanism, respectively. A large number of chisel claws are provided, and a seed dispersing plate is provided behind the chisel claws to disperse the seeds fed from the seeding mechanism and disperse the seeds in the field.The seed dispersing plate is cultivated behind the seed dispersing plate by the chisel claws. A chisel plow, fertilizer application and sowing apparatus, comprising a crushing and covering roller for crushing the soil surface and mixing and covering the seed and soil.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9762997A JP2896506B2 (en) | 1997-04-15 | 1997-04-15 | Chisel plow, fertilizer application, sowing equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9762997A JP2896506B2 (en) | 1997-04-15 | 1997-04-15 | Chisel plow, fertilizer application, sowing equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10286003A true JPH10286003A (en) | 1998-10-27 |
JP2896506B2 JP2896506B2 (en) | 1999-05-31 |
Family
ID=14197473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9762997A Expired - Lifetime JP2896506B2 (en) | 1997-04-15 | 1997-04-15 | Chisel plow, fertilizer application, sowing equipment |
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JP (1) | JP2896506B2 (en) |
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