JPH1042631A - Soil hardness detector of farm working machine - Google Patents
Soil hardness detector of farm working machineInfo
- Publication number
- JPH1042631A JPH1042631A JP19918096A JP19918096A JPH1042631A JP H1042631 A JPH1042631 A JP H1042631A JP 19918096 A JP19918096 A JP 19918096A JP 19918096 A JP19918096 A JP 19918096A JP H1042631 A JPH1042631 A JP H1042631A
- Authority
- JP
- Japan
- Prior art keywords
- soil
- soil hardness
- hardness
- detecting means
- rollers
- 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.)
- Pending
Links
- 239000002689 soil Substances 0.000 title claims abstract description 85
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 abstract description 5
- 239000003337 fertilizer Substances 0.000 description 14
- 241000209094 Oryza Species 0.000 description 9
- 235000007164 Oryza sativa Nutrition 0.000 description 9
- 235000009566 rice Nutrition 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 230000004720 fertilization Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
Landscapes
- Transplanting Machines (AREA)
- Fertilizing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、農作業機の土壌硬
度検出装置に関する。The present invention relates to a soil hardness detecting device for an agricultural work machine.
【０００２】[0002]
【従来の技術】従来、昇降自在の作溝器と覆土板とを具
備して、作溝器で土壌の表面に溝を形成して同溝中に種
子や肥料を投入し、覆土板で上記種子や肥料に覆土する
ようにした農作業機がある。2. Description of the Related Art Conventionally, a trench generator and a cover plate which can be moved up and down are provided, a groove is formed on the surface of the soil by the trencher, and seeds and fertilizer are put into the groove, and the above described cover plate is used to cover the soil. There are agricultural machines that cover the soil with seeds and fertilizer.
【０００３】[0003]
【発明が解決しようとする課題】ところが、圃場の場所
によって土壌表面の硬度が変化するため、作溝器で形成
される溝の深さや覆土板による覆土量が変動し、そのた
め、播種や施肥の深さや覆土の厚さを圃場全般に亙って
適正に保持するのが困難であった。However, since the hardness of the soil surface changes depending on the location of the field, the depth of the groove formed by the groove generator and the amount of soil covered by the soil cover plate fluctuate. It was difficult to properly maintain the depth and the thickness of the soil over the entire field.
【０００４】[0004]
【課題を解決するための手段】そこで、本発明では、昇
降自在の作溝器と覆土板とを具備する農作業機におい
て、同農作業機に左右一対の左右土壌硬度検出手段を、
それぞれ農作業機の車輪の直後方を避けて設け、これら
の左右土壌硬度検出手段の検出値の平均値に基づいて、
作溝器と覆土板との上下位置を制御することを特徴とす
る農作業機の土壌硬度検出装置を提供せんとするもので
ある。Therefore, according to the present invention, there is provided an agricultural work machine having a vertically movable groove-forming device and a soil covering plate, wherein the agricultural work machine includes a pair of left and right soil hardness detecting means.
Each is provided to avoid the rear of the wheel of the agricultural work machine, based on the average value of these left and right soil hardness detection means,
It is an object of the present invention to provide a soil hardness detection device for an agricultural work machine, which controls the vertical position of a groove generator and a cover plate.
【０００５】また、次のような特徴を併せ有するもので
ある。[0005] The present invention also has the following features.
【０００６】上記左右土壌硬度検出手段は、土壌表面を
転動する比重の異なる２個のローラを具備して、これら
のローラの沈下量の差から土壌の硬度を検出すること。The left and right soil hardness detecting means comprises two rollers having different specific gravities rolling on the soil surface, and detecting the hardness of the soil from the difference in the amount of settlement of these rollers.
【０００７】[0007]
【発明の実施の形態】本発明の実施の形態について図面
を参照して説明する。Embodiments of the present invention will be described with reference to the drawings.
【０００８】図１は、本発明に係る土壌硬度検出装置Ｓ
を具備する農作業機の一例としての側条施肥装置付き田
植機Ａを示しており、同田植機Ａは、田面を自走可能の
走行機体１と植付部２と側条施肥装置３とで構成されて
いる。FIG. 1 shows a soil hardness detecting device S according to the present invention.
1 shows a rice transplanter A with a side-strip fertilizer device as an example of a farm work machine equipped with a traveling machine 1, a traveling machine 1 capable of self-propelling on a rice field, a planting section 2, and a side-strip fertilizer device 3. It is configured.
【０００９】走行機体１は、機体フレーム４の上面に原
動機部５と運転部６とを載設し、同機体フレーム４下面
に配設したミッションケース７を介し原動機部５からの
動力により、同機体フレーム４の前後左右側部に配設し
た前後左右車輪8,9 を駆動するようにしている。The traveling body 1 has a prime mover unit 5 and an operation unit 6 mounted on the upper surface of a body frame 4, and is driven by power from the prime mover unit 5 via a transmission case 7 disposed on the lower surface of the body frame 4. The front, rear, left and right wheels 8, 9 disposed on the front, rear, left and right sides of the body frame 4 are driven.
【００１０】植付部２は、上記走行機体１の後端部に３
点リンク機構10と昇降装置11とを介して昇降自在に連結
されており、中央及び左右側フロート13,14,15と、植付
駆動ケース16に回動ケース17を介して取付けた植付爪18
で、苗載台19に載置した苗マットから一定量の苗を採取
して田面に植付けるようにしている。[0010] The planting section 2 has a rear end 3
The point link mechanism 10 and the lifting device 11 are connected so as to be able to move up and down freely, and the center and left and right floats 13, 14, 15, and a planting claw attached to the planting drive case 16 via a rotating case 17. 18
Thus, a certain amount of seedlings is collected from a seedling mat placed on the seedling mounting table 19 and planted on the rice field.
【００１１】図２は、上記植付部２の田面からの高さを
一定に保持するための昇降制御機構20を示しており、中
央フロート13の後端部上面を植付駆動ケース16から延出
したフロート支持体21の先端に回動自在に支持し、同中
央フロート13の先端上面に設けた連動機構23a と、前記
昇降装置11の油圧シリンダ12の作動を制御する油圧制御
弁22（図１参照）との間にフィードバックワイヤ23を介
設し、中央フロート13の上下動をフィードバックワイヤ
23を介して油圧制御弁22に伝達して、油圧シリンダ12を
伸縮作動させることにより、植付部２を田面から一定の
高さに保持するようにしている。図２中、6aは手動で植
付部２の上下位置を設定するための高さ設定レバーであ
る 側条施肥装置３は、図１及び図３で示すように、走行機
体１の後部で前記３点リンク機構10の上方に載設した肥
料タンク24と計量機25と、前記各フロート13,14,15の左
右側部に配置した作溝器26と、各作溝器26の後方に配置
した肥料吐出管27と、各肥料吐出管27の後方に配置した
覆土板28とで構成されており、各計量機25と各肥料吐出
管27とは柔軟なホース29を介して連通連結しており、肥
料タンク24から計量機25で一定量の肥料を取出し、この
肥料をホース29を介して肥料吐出管27に送給し、同肥料
吐出管27から作溝器26で田面に形成した溝中に放出し、
同溝中の肥料を覆土板28で覆土するようにしている。FIG. 2 shows an elevation control mechanism 20 for keeping the height of the planting section 2 from the rice field constant. The upper surface of the rear end of the central float 13 extends from the planting drive case 16. An interlocking mechanism 23a, which is rotatably supported on the distal end of the float support 21 and is provided on the upper surface of the distal end of the central float 13, and a hydraulic control valve 22 for controlling the operation of the hydraulic cylinder 12 of the lifting device 11 (FIG. 1) and a feedback wire 23 is provided between the center wire 13 and the vertical movement of the center float 13.
The planting portion 2 is maintained at a constant height from the rice field by transmitting the hydraulic cylinder 12 to the hydraulic control valve 22 via 23 to expand and contract the hydraulic cylinder 12. In FIG. 2, reference numeral 6a denotes a height setting lever for manually setting the vertical position of the planting section 2. As shown in FIG. 1 and FIG. A fertilizer tank 24 and a weighing machine 25 mounted above the three-point link mechanism 10, a groove generator 26 disposed on the left and right sides of the floats 13, 14, 15 and a rear part of each groove generator 26 Fertilizer discharge pipe 27, and a cover soil plate 28 disposed behind each fertilizer discharge pipe 27, and each measuring machine 25 and each fertilizer discharge pipe 27 are connected and connected via a flexible hose 29. A certain amount of fertilizer is taken out from the fertilizer tank 24 by the weighing machine 25, and this fertilizer is fed to the fertilizer discharge pipe 27 via the hose 29, and the fertilizer discharge pipe 27 is used to form a groove formed on the rice field by the groove generator 26. Release into,
The soil in the trench is covered with a soil covering plate 28.
【００１２】かかる側条施肥装置３において、本発明で
は、左右一対の左右土壌硬度検出手段SL,SR よりなる土
壌硬度検出装置Ｓを設けて、左右土壌硬度検出手段SL,S
R の土壌硬度検出値の平均値に基づいて、前記３点リン
ク機構10の油圧シリンダ12の伸縮作動を制御して、作溝
器26と覆土板28の高さを調節することにより、施肥のた
めの作溝の深さと覆土量とを土壌の硬度に適した値に保
持するようにしている。In the present invention, in the present invention, a soil hardness detecting device S comprising a pair of left and right soil hardness detecting means SL, SR is provided.
By controlling the expansion and contraction operation of the hydraulic cylinder 12 of the three-point link mechanism 10 on the basis of the average value of the soil hardness detection values of R, and by adjusting the height of the groove generator 26 and the cover soil plate 28, The depth of the groove and the amount of soil cover are kept at values suitable for the hardness of the soil.
【００１３】左右土壌硬度検出手段SL,SR は、図３及び
図４で示すように、左右フロート14,15 の内側に左右対
称に配置されており、左土壌硬度検出手段SLについて説
明すると、左フロート14の内側縁から内側方向にブラケ
ット30を突設し、同ブラケット30に第１、第２揺動杆3
1,32 の前端を回動自在に枢着し、第１揺動杆31の後端
に大径で比重が大きくて田面への沈下量が大きい第１ロ
ーラ33を軸支し、第２揺動杆32の後端には小径で比重が
小さくて田面への沈下量が小さい第２ローラ34を軸支
し、第１揺動杆31の中途にポテンショメータ35L を取付
け、同ポテンショメータ35L の計測杆36に形成した長孔
37に、第２揺動杆32の中途に突設したピン38を挿通させ
て、各ローラ33,34 の沈下量の差に対応した電圧をポテ
ンショメータ35L から出力させるようにしている。ま
た、図３ので示すように、上記各ローラ33,34 は前後左
右車輪8,9 の直後方位置を避けて設けられている。The left and right soil hardness detecting means SL, SR are arranged symmetrically inside the left and right floats 14, 15 as shown in FIGS. 3 and 4, and the left soil hardness detecting means SL will be described. A bracket 30 protrudes inward from the inner edge of the float 14, and the first and second swinging rods 3 are attached to the bracket 30.
The first end of the first swinging rod 31 is pivotably connected to the first end of the first swinging rod 31. The first end of the first swinging rod 31 is supported by a first roller 33 having a large diameter, a large specific gravity, and a large amount of sinking on the rice field. At the rear end of the moving rod 32, a second roller 34 having a small diameter, a small specific gravity, and a small amount of sinking on the rice field is pivotally supported. A potentiometer 35L is mounted in the middle of the first swinging rod 31, and the measuring rod of the potentiometer 35L is mounted. Slot formed in 36
A pin 38 protruding in the middle of the second swinging rod 32 is inserted through 37 so that a voltage corresponding to the difference in the amount of settlement between the rollers 33 and 34 is output from the potentiometer 35L. As shown in FIG. 3, the rollers 33, 34 are provided so as not to be located immediately behind the front, rear, left and right wheels 8, 9.
【００１４】図５は制御部40を示しており、左右土壌硬
度検出手段SL,SR の各ポテンショメータ35L,35R をマイ
クロコンピュータ41に接続し、同マイクロコンピュータ
41にリレー42を介して、前述したフィードバックワイヤ
23のアウタ43（図２参照）に連動連結したギヤドモータ
44（図２参照）に接続している。図５中、45は感度フィ
ードバック抵抗、46は感度切換用可変抵抗器、47は電源
である。FIG. 5 shows a control unit 40 in which the potentiometers 35L, 35R of the left and right soil hardness detecting means SL, SR are connected to a microcomputer 41,
Via relay 42 to 41, the feedback wire described above
Geared motor linked to 23 outer 43 (see Fig. 2)
44 (see FIG. 2). In FIG. 5, 45 is a sensitivity feedback resistor, 46 is a sensitivity switching variable resistor, and 47 is a power supply.
【００１５】かかる構成により、マイクロコンピュータ
41により、左右のポテンショメータ35L,35R の出力電圧
からそれぞれ左右の土壌硬度を検出し、更に、左右の土
壌硬度検出値の平均値を算出して、同平均値が設定値よ
りも小さい場合は、土壌硬度が小さいと判定し、上記平
均値が設定値よりも大きい場合は、土壌硬度が大きいと
判定する。With this configuration, the microcomputer
By 41, the left and right soil hardness is detected from the output voltages of the left and right potentiometers 35L and 35R, respectively, and the average value of the left and right soil hardness detection values is calculated.If the average value is smaller than the set value, It is determined that the soil hardness is low, and when the average value is larger than the set value, it is determined that the soil hardness is high.
【００１６】特に、沈下量の異なる２個のローラ33,34
の沈下量の差から土壌硬度を検出するようにしたので、
機体の上下動や走行速度の変化に伴う検出値の変動が相
殺されて、正確な土壌硬度を検出することができ、更
に、左右一対の左右土壌硬度検出手段SL,SR が検出した
土壌硬度の平均値に基づいて油圧シリンダ12を制御する
ことにより、機体のローリングに起因する硬度検出値の
変動を相殺して、正確な土壌硬度の検出を行うことがで
きる。In particular, two rollers 33, 34 having different settlement amounts.
Because the soil hardness was detected from the difference in the amount of settlement of
Fluctuations in the detected values due to the vertical movement of the aircraft and changes in the running speed are offset, and accurate soil hardness can be detected.Furthermore, the soil hardness detected by the pair of left and right By controlling the hydraulic cylinder 12 based on the average value, it is possible to cancel the fluctuation of the hardness detection value caused by the rolling of the airframe, and to accurately detect the soil hardness.
【００１７】そして、土壌硬度が大きいと判定した場合
は、油圧シリンダ12を伸張させて各フロート13,14,15を
降下させることにより接地圧を大きくして、作溝器26と
覆土板28の浮き上がりを防止し、土壌硬度が小さいと判
定した場合には、油圧シリンダ12を縮退させて各フロー
ト13,14,15を上昇させることにより接地圧を小さくし
て、作溝器26と覆土板28の沈み込みを防止することによ
り、作溝器26と覆土板28を土壌硬度に適した接地圧に保
持することができる。If it is determined that the soil hardness is high, the hydraulic cylinder 12 is extended and the floats 13, 14, 15 are lowered to increase the ground contact pressure, and the groove generator 26 and the cover plate 28 When it is determined that the soil hardness is low, the hydraulic cylinder 12 is retracted and the floats 13, 14, 15 are raised to reduce the contact pressure, and the groove generator 26 and the earth covering plate 28 are prevented. By preventing the sinking of the soil, the groove generator 26 and the cover soil plate 28 can be maintained at the contact pressure suitable for the soil hardness.
【００１８】このように、土壌硬度に応じた最適の作溝
深さと覆土量とを自動的に保持することができるので、
施肥の効果を最大限に高めることができる。As described above, since the optimum groove depth and the amount of soil covering according to the soil hardness can be automatically maintained,
The effect of fertilization can be maximized.
【００１９】なお、前記油圧制御弁22を電磁式である場
合には、ギヤドモータ44やフィードバックワイヤ23を介
さずに、リレー42からの出力で直接電磁式の油圧制御弁
を駆動することもできる。When the hydraulic control valve 22 is of an electromagnetic type, the electromagnetic hydraulic control valve can be directly driven by the output from the relay 42 without the intervention of the geared motor 44 and the feedback wire 23.
【００２０】図６及び図７は、他実施例の土壌硬度検出
手段Sa,Sb を示しており、図６では、前記ローラの代わ
りに後端部を田面に摺接した橇体50の前端部をフロート
51の後端部上面に設けたポテンショメータ35に取付けて
おり、図７では、上記橇体50の前端部を植付駆動ケース
16後端部下面に設けたポテンショメータ35に取付けてい
る。FIGS. 6 and 7 show another embodiment of the soil hardness detecting means Sa, Sb. In FIG. 6, instead of the rollers, the front end of a sled body 50 having a rear end slidably in contact with a rice field is used. The float
7 is attached to a potentiometer 35 provided on the upper surface of the rear end. In FIG.
16 Mounted on a potentiometer 35 provided on the lower surface of the rear end.
【００２１】また、土壌硬度検出装置Ｓには、前述した
大小ローラの組み合わせばかりでなく、接地面が広い橇
体と狭い橇体との組み合わせや、ローラと橇体との組み
合わせや、小型のセンサフロートとローラ又は橇体との
組み合わせ等が考えられ、要は、土壌の硬度に応じて接
地体の沈下量に差が生ずる組み合わせであればよい。The soil hardness detecting device S includes not only the combination of the large and small rollers described above, but also a combination of a sled body with a wide ground surface and a narrow sled body, a combination of a roller and a sled body, and a small sensor. A combination of a float and a roller or a sled body is conceivable. In short, any combination may be used as long as the difference in the amount of settlement of the ground contact body depends on the hardness of soil.
【００２２】本発明は、上述した側条施肥装置ばかりで
なく、播種装置のように、圃場面に作溝して覆土する農
作業機であれば広く適用することができる。The present invention can be widely applied not only to the above-mentioned side-strip fertilizer but also to any other agricultural working machine, such as a sowing apparatus, which forms a soil in a field scene and covers the soil.
【００２３】[0023]
【発明の効果】本発明によれば次のような効果を得るこ
とができる。According to the present invention, the following effects can be obtained.
【００２４】請求項１記載の発明では、昇降自在の作溝
器と覆土板とを具備する農作業機において、同農作業機
に左右一対の土壌硬度検出手段を設けて、上記左右一対
の土壌硬度検出手段の検出値の平均値を求めることで、
農作業機のローリングに伴う検出値の変動が相殺されて
正確に土壌の硬度を検出することができ、かかる平均値
に基づいて、作溝器と覆土板との上下位置を制御するこ
とによって、圃場全般に亙り適正な深さに播種や施肥
し、適切に覆土することができる。According to the first aspect of the present invention, there is provided an agricultural work machine including a vertically movable groove-forming device and a soil covering plate, wherein the agricultural work machine is provided with a pair of left and right soil hardness detecting means, and the pair of left and right soil hardness is detected. By finding the average of the detection values of the means,
Fluctuations in the detection values caused by the rolling of the agricultural work machine are offset, and the hardness of the soil can be accurately detected. Based on the average value, the vertical position of the dipstick and the soil covering plate is controlled, so that the Seeding and fertilization to an appropriate depth throughout can be performed and soil can be covered appropriately.
【００２５】更に、上記左右一対の土壌硬度検出手段
を、それぞれ農作業機の車輪の直後方を避けて設けるこ
とで、土壌の硬度検出に際し車輪の影響を回避すること
ができる。Further, by providing the pair of left and right soil hardness detecting means so as not to be located immediately behind the wheels of the agricultural work machine, it is possible to avoid the influence of the wheels when detecting the hardness of the soil.
【００２６】請求項２記載の発明では、上記土壌硬度検
出手段は、土壌表面を転動する比重の異なる２個のロー
ラを具備して、これらのローラのの沈下量の差から土壌
の硬度を検出することによって、農作業機の地上高や走
行速度の変化等による検出値の変動が相殺されて、正確
な土壌の硬度を検出することができる。According to the second aspect of the present invention, the soil hardness detecting means includes two rollers having different specific gravities for rolling on the soil surface, and the soil hardness is determined based on a difference in settlement between the rollers. By the detection, the fluctuation of the detection value due to the change in the ground height or the traveling speed of the agricultural work machine is offset, and the soil hardness can be accurately detected.
【図１】本発明に係る土壌硬度検出手段を具備する農作
業機の側面図。FIG. 1 is a side view of an agricultural working machine provided with a soil hardness detecting means according to the present invention.
【図２】昇降制御機構の側面図。FIG. 2 is a side view of a lifting control mechanism.
【図３】上記土壌硬度検出手段の配置を示す平面図。FIG. 3 is a plan view showing an arrangement of the soil hardness detecting means.
【図４】土壌硬度検出手段の側面図。FIG. 4 is a side view of a soil hardness detecting means.
【図５】制御部の構成を示す説明図。FIG. 5 is an explanatory diagram illustrating a configuration of a control unit.
【図６】他実施例土壌硬度検出手段の側面図。FIG. 6 is a side view of another embodiment of soil hardness detection means.
【図７】他実施例土壌硬度検出手段の側面図。FIG. 7 is a side view of another embodiment of soil hardness detection means.
Ｓ 土壌硬度検出装置 SL 左土壌硬度検出手段 SR 右土壌硬度検出手段 ８ 前車輪 ９ 後車輪 26 作溝器 28 覆土板 33 第１ローラ 34 第２ローラ S Soil hardness detector SL Left soil hardness detector SR Right soil hardness detector 8 Front wheel 9 Rear wheel 26 Groove device 28 Covering plate 33 First roller 34 Second roller
Claims (2)
具備する農作業機において、同農作業機に左右一対の左
右土壌硬度検出手段(SL)(SR)を、それぞれ農作業機の車
輪(8)(9)の直後方を避けて設け、これらの左右土壌硬度
検出手段(SL)(SR)の検出値の平均値に基づいて、作溝器
(26)と覆土板(28)との上下位置を制御することを特徴と
する農作業機の土壌硬度検出装置。1. A farm work machine comprising a vertically movable groove generator (26) and a soil cover plate (28), wherein the farm work machine is provided with a pair of left and right left and right soil hardness detecting means (SL) (SR). The right and left soil hardness detection means (SL) (SR) are provided based on the average of the detection values of these right and left soil hardness detection means.
A soil hardness detecting device for an agricultural work machine, wherein the vertical position of the earth cover (26) and the earth covering plate (28) is controlled.
土壌表面を転動する比重の異なる２個のローラ(33)(34)
を具備して、これらのローラ(33)(34)の沈下量の差から
土壌の硬度を検出することを特徴とする請求項１記載の
農作業機の土壌硬度検出装置。2. The left and right soil hardness detection means (SL) (SR)
Two rollers of different specific gravity that roll on the soil surface (33, 34)
The soil hardness detecting device for an agricultural work machine according to claim 1, wherein the soil hardness is detected from the difference in the amount of settlement between the rollers (33) and (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19918096A JPH1042631A (en) | 1996-07-29 | 1996-07-29 | Soil hardness detector of farm working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19918096A JPH1042631A (en) | 1996-07-29 | 1996-07-29 | Soil hardness detector of farm working machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1042631A true JPH1042631A (en) | 1998-02-17 |
Family
ID=16403481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19918096A Pending JPH1042631A (en) | 1996-07-29 | 1996-07-29 | Soil hardness detector of farm working machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1042631A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105052275A (en) * | 2015-06-27 | 2015-11-18 | 江苏盈丰佳园生物技术有限公司 | Ridging machine |
| JP2016010370A (en) * | 2014-06-30 | 2016-01-21 | 井関農機株式会社 | Seeding machine |
| CN108283036A (en) * | 2018-04-24 | 2018-07-17 | 农业部南京农业机械化研究所 | A kind of rice transplanting ditching-fertilizing covering device |
| CN112449780A (en) * | 2020-11-27 | 2021-03-09 | 吉林省农业科学院 | Subsoiling and fertilizing device |
| CN112470611A (en) * | 2020-12-02 | 2021-03-12 | 中国农业科学院农业资源与农业区划研究所 | Wheat layered fertilizer applicator |
-
1996
- 1996-07-29 JP JP19918096A patent/JPH1042631A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016010370A (en) * | 2014-06-30 | 2016-01-21 | 井関農機株式会社 | Seeding machine |
| CN105052275A (en) * | 2015-06-27 | 2015-11-18 | 江苏盈丰佳园生物技术有限公司 | Ridging machine |
| CN108283036A (en) * | 2018-04-24 | 2018-07-17 | 农业部南京农业机械化研究所 | A kind of rice transplanting ditching-fertilizing covering device |
| CN112449780A (en) * | 2020-11-27 | 2021-03-09 | 吉林省农业科学院 | Subsoiling and fertilizing device |
| CN112449780B (en) * | 2020-11-27 | 2021-09-03 | 吉林省农业科学院 | Subsoiling and fertilizing device |
| CN112470611A (en) * | 2020-12-02 | 2021-03-12 | 中国农业科学院农业资源与农业区划研究所 | Wheat layered fertilizer applicator |
| CN112470611B (en) * | 2020-12-02 | 2021-09-03 | 中国农业科学院农业资源与农业区划研究所 | Wheat layered fertilizer applicator |
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