JP2000096545A - Paddy field management system - Google Patents
Paddy field management systemInfo
- Publication number
- JP2000096545A JP2000096545A JP10283255A JP28325598A JP2000096545A JP 2000096545 A JP2000096545 A JP 2000096545A JP 10283255 A JP10283255 A JP 10283255A JP 28325598 A JP28325598 A JP 28325598A JP 2000096545 A JP2000096545 A JP 2000096545A
- Authority
- JP
- Japan
- Prior art keywords
- water
- paddy field
- drainage
- paddy
- wastewater
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 187
- 239000002351 wastewater Substances 0.000 claims abstract description 74
- 238000000746 purification Methods 0.000 claims abstract description 68
- 235000015097 nutrients Nutrition 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims description 23
- 235000009566 rice Nutrition 0.000 claims description 23
- 238000007599 discharging Methods 0.000 claims description 7
- 235000021049 nutrient content Nutrition 0.000 claims description 6
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000003337 fertilizer Substances 0.000 abstract description 12
- 239000000126 substance Substances 0.000 abstract description 5
- 235000016709 nutrition Nutrition 0.000 abstract description 3
- 230000035764 nutrition Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 24
- 241000209094 Oryza Species 0.000 description 22
- 229910052757 nitrogen Inorganic materials 0.000 description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 11
- 229910052698 phosphorus Inorganic materials 0.000 description 11
- 239000011574 phosphorus Substances 0.000 description 11
- 230000004720 fertilization Effects 0.000 description 10
- 201000002451 Overnutrition Diseases 0.000 description 6
- 235000020823 overnutrition Nutrition 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 208000002720 Malnutrition Diseases 0.000 description 3
- 229930002875 chlorophyll Natural products 0.000 description 3
- 235000019804 chlorophyll Nutrition 0.000 description 3
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 3
- 230000002595 cold damage Effects 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 235000000112 undernutrition Nutrition 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000003657 drainage water Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000008239 natural water Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009643 growth defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
Landscapes
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は例えば水稲などの作
物を栽培する水田の水を管理する水田管理システムに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paddy field management system for managing water in a paddy field for cultivating crops such as paddy rice.
【０００２】[0002]
【発明が解決しようとする課題】従来、特開平７−６４
６５０号公報に示す如く、水田の水量及び水温を検出し
て適正な水量及び水温を自動的に維持する技術がある
が、水田の排水を河川に無制限に流出させているから、
水田の肥料または薬剤などが排水と共に河川に流出し易
く、環境保全並びに節水などを容易に図り得ない等の問
題がある。また、肥料の流出によって施肥量の低減並び
に施肥作業の省力化などを容易に行い得ず、水及び肥料
の有効利用並びに排水環境維持などを容易に図り得ない
等の問題がある。Conventionally, Japanese Unexamined Patent Publication No. 7-64 is known.
As shown in Japanese Patent Publication No. 650, there is a technology for automatically detecting the amount and temperature of water in a paddy field and automatically maintaining an appropriate amount of water and water temperature.
There is a problem that the fertilizers or chemicals of the paddy fields easily flow into the river together with the drainage, and it is difficult to protect the environment and save water. In addition, there is a problem that it is not possible to easily reduce the amount of fertilization and labor saving of fertilization work due to outflow of fertilizer, and it is not easy to effectively use water and fertilizer and maintain a drainage environment.
【０００３】[0003]
【課題を解決するための手段】然るに、本発明は、水田
の水を制御する水田管理システムにおいて、水田の水を
河川に流出させる排水路に排水浄化施設を設けたもの
で、水田から河川に排出される肥料または薬剤を容易に
低減し得、水田排水に含まれる有機汚濁並びに窒素及び
燐などを容易に削減し得、河川の環境保全並びに水田排
水の再利用による節水などを容易に図り得るものであ
る。SUMMARY OF THE INVENTION The present invention provides a paddy field management system for controlling water in a paddy field, wherein a drainage purification system is provided in a drainage channel for discharging water from the paddy field to the river. It can easily reduce discharged fertilizers or chemicals, easily reduce organic pollutants and nitrogen and phosphorus etc. contained in paddy effluents, and can easily conserve river environment and save water by reusing paddy effluents Things.
【０００４】また、水田からの排水を水田に再供給させ
る水路切換装置を排水浄化装置の給水側に設けたもの
で、浄化前の排水を水田に戻すことにより、節水によっ
て水不足を容易に防止し得、また排水温によって水田の
温度低下を容易に防止し得、排水の再利用によって干ば
つまたは冷害などによる稲の成育不良を容易に低減し得
るものである。Further, a water channel switching device for re-supplying the drainage from the paddy field to the paddy field is provided on the water supply side of the drainage purification device. By returning the drainage before purification to the paddy field, water shortage can be easily prevented by water saving. In addition, the temperature of the paddy field can be easily prevented from decreasing by the temperature of the wastewater, and poor growth of rice due to drought or cold damage can be easily reduced by reusing the wastewater.
【０００５】また、水田排水の水質を検出する水質検知
手段を水路切換装置の上流側に設け、水質検知手段の検
出結果に基づき水路切換装置を自動的に切換えるように
構成したもので、水田排水に含まれている窒素または燐
などの栄養分を排水の循環によって水田に再供給し得、
稲などの成育に必要な栄養分を確保し乍ら肥料の使用量
を容易に低減し得、また排水の循環によって水田の自然
浄化を活用し得、施肥及び排水浄化の経費削減または省
力化などを容易に図り得るものである。Further, a water quality detecting means for detecting the water quality of the paddy drainage is provided upstream of the waterway switching device, and the waterway switching device is automatically switched based on the detection result of the water quality detecting means. Nutrients such as nitrogen or phosphorus contained in the rice can be resupplied to the paddy field by circulation of wastewater
It is possible to easily reduce the amount of fertilizer used while securing the nutrients necessary for the growth of rice, etc., and to utilize the natural purification of paddy fields by circulating wastewater, and to reduce the cost or labor of fertilization and wastewater purification. It can be easily achieved.
【０００６】また、水田に必要な稲育成水量と水路切換
装置の循環水量とに基づき、水源から取込む補充水量を
自動制御するように構成したもので、稲の吸収及び自然
蒸発などによる不足分だけを水源から補うから、水源か
らの給水量を低減して河川などの自然流水量を容易に確
保し得ると共に、排水の循環によって水田給水側の栄養
不足並びに水田排水側の栄養過多などを容易に防止し
得、水田全域に栄養分を均等に供給して栄養過不足によ
る成育むら等を容易に防止し得るものである。Further, the amount of replenishing water taken in from the water source is automatically controlled based on the amount of rice growing water required for the paddy field and the amount of circulating water of the water channel switching device. Only water from the water source, the amount of water supply from the water source can be reduced to easily secure the natural flow of water from rivers, etc., and the circulation of wastewater facilitates the undernutrition of the paddy water supply side and the overfeeding of the paddy drainage side. The nutrients can be easily supplied to the entire area of the paddy field to easily prevent uneven growth due to overnutrition.
【０００７】また、水田からの排水中に含まれる作物栄
養分を水質検知手段によって検出して水路切換装置を自
動制御するように構成したもので、水田排水中の栄養分
の多少を判断して排水を循環させたり排出し得、水田に
供給する栄養分を排水循環または排出によって容易に調
節し得、施肥管理の簡略化などを容易に図り得るもので
ある。[0007] Further, the system is configured such that the crop nutrient contained in the drainage from the paddy field is detected by the water quality detecting means and the water channel switching device is automatically controlled. It can be circulated or discharged, and the nutrient supplied to the paddy field can be easily adjusted by drainage circulation or discharge, so that the fertilization management can be simplified easily.
【０００８】また、水田内の作物の含有栄養分を検出す
る作物検知手段を設け、作物検知手段の検出結果に基づ
き作物を水田別に区別して排水浄化装置の給水側から水
田排水を水田に自動的に戻すように構成したもので、作
物の栄養過不足を判断して排水を循環させ得、水田を特
定して排水循環による栄養補給を行い得、施肥効率の向
上並びに排水浄化作業の簡略化などを容易に図り得るも
のである。In addition, a crop detecting means for detecting the nutrient content of the crop in the paddy field is provided, and the crop is classified into each paddy field based on the detection result of the crop detecting means, and the paddy drainage is automatically supplied to the paddy field from the water supply side of the drainage purification device. The system is designed to return the nutrients to the crop and determine the nutrient excess or deficiency, circulate the wastewater, identify the paddy fields and replenish nutrients by circulating the wastewater, improve the fertilization efficiency and simplify the wastewater purification work. It can be easily achieved.
【０００９】また、作物検知手段の検出結果に基づき区
別した水田に排水を戻すときに他の水田の給水を自動的
に中止させるように構成したもので、複数の水田に兼用
する給水路を介して特定の水田に排水を循環させ得、例
えば水源からの給水を行うことなく必要な給水量を容易
に確保し得ると共に、複数水田の作物を均一に成育させ
て水田間の収穫量の差を容易に低減し得るものである。Further, when the drainage is returned to the paddy field distinguished based on the detection result of the crop detecting means, the water supply to another paddy field is automatically stopped, and the water is supplied to the paddy field via a water supply channel shared with a plurality of paddy fields. Wastewater can be circulated to a specific paddy field, for example, the required water supply can be easily secured without supplying water from a water source, and the crops in multiple paddy fields can be grown uniformly to reduce the difference in yield between paddy fields. It can be easily reduced.
【００１０】また、排水浄化装置の下流側に排水路切換
手段及び排水質検知手段を設け、排水浄化装置からの排
水が不適正水質のときに循環させて自動的に再浄化させ
るように構成したもので、水田からの排水量の変化、並
びに水田排水の水質変化、並びに浄化装置の浄化力の経
時的変化などに対し、浄化装置から河川に放水する排水
の水質を一定規準以上に容易に維持し得、排水浄化作業
の簡略化及び省力化並びに排水浄化コスト低減などを容
易に図り得るものである。[0010] Further, a drain passage switching means and a waste water quality detecting means are provided downstream of the waste water purification device, and the waste water from the waste water purification device is circulated and automatically repurified when the water quality is inappropriate. It easily maintains the water quality of the wastewater discharged from the purification device to the river above a certain standard in response to changes in the amount of drainage from the paddy field, changes in the water quality of the paddy field drainage, and changes over time in the purification power of the purification device. In addition, simplification and labor saving of wastewater purification work and reduction of wastewater purification cost can be easily achieved.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施例を図面に基
づいて詳述する。図１は全体の説明図、図２は制御系統
図であり、河川または池などの水源（１）の水を給水路
（２）に送出させる水源局（３）と、前記給水路（２）
の水を複数の水田（４）各別に取込む複数の給水局
（５）と、複数の水田（４）の水を排水路（６）に各別
に排出させる複数の排水局（７）と、前記排水路（６）
の水を河川（８）に流出させる最終排水路（９）に設置
させる浄化装置（１０）と、前記水源局（３）及び給水
局（５）及び排水局（７）及び浄化装置（１０）と中央
局（１１）とを中継する水田局（１２）を設けるもの
で、浄化装置（１０）を共用する複数の水田（４）を１
ブロックとして水田局（１２）を設けて各水田（４）の
水管理を行うように構成している。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an overall explanatory diagram, and FIG. 2 is a control system diagram. A water source station (3) for sending water from a water source (1) such as a river or a pond to a water supply channel (2), and the water supply channel (2).
A plurality of water bureaus (5) for taking in water from each of the plurality of paddy fields (4), and a plurality of drain stations (7) for respectively discharging water from the plurality of paddy fields (4) to the drainage channel (6); The drainage channel (6)
Purification device (10) to be installed in the final drainage channel (9) for draining the water into the river (8), and the water source station (3), the water supply station (5), the drainage station (7), and the purification device (10) A paddy bureau (12) is provided to relay between the paddy bureau (11) and the central bureau (11).
The paddy bureau (12) is provided as a block and is configured to manage water in each paddy (4).
【００１２】また、送受信機（１３）に中央コントロー
ラ（１４）を前記中央局（１１）に備え、水田局（１
２）の送信データを受信して水田の水位等を決定し、水
源及び給水及び排水及び浄化の各制御信号を水田局（１
２）に送信して各局（３）（５）（７）（１０）を遠隔
的に自動制御するように構成している。なお、中央局
（１１）と水田局（１２）の距離が約１キロメートル以
内のときは送受信機（１３）として小電力無線機を使用
し、それ以外の遠距離のときは商用電話回線を使用して
データ及び制御信号の送受信を行わせる。A central controller (14) is provided in the transceiver (13) in the central office (11).
The transmission data of 2) is received, the water level of the paddy field is determined, and the control signals of the water source, water supply, drainage, and purification are transmitted to the Paddy Field Bureau (1)
It is configured to automatically control each of the stations (3), (5), (7) and (10) remotely by transmitting to the station (2). When the distance between the central station (11) and the paddy station (12) is within about 1 km, a low power radio is used as the transceiver (13). When the distance is other than that, a commercial telephone line is used. To transmit and receive data and control signals.
【００１３】また、送受信機（１５）と、水源コントロ
ーラ（１６）と、送水用水源ポンプ（１７）を、前記水
源局（３）に備え、中央局（１１）が決定した水田水位
に基づき水源ポンプ（１７）を駆動して水田（４）に必
要な水量を給水路（２）に供給するように構成してい
る。Further, a transceiver (15), a water source controller (16), and a water supply pump (17) are provided in the water source station (3), and the water source is determined based on the paddy water level determined by the central station (11). The pump (17) is driven to supply a necessary amount of water to the paddy field (4) to the water supply channel (2).
【００１４】さらに、各水田（４）単位で給水局（５）
及び排水局（７）を設けるもので、送受信機（１８）
と、給水コントローラ（１９）と、給水温を検知する水
温計（２０）と、給水装置を形成する給水バルブ（２
１）を、前記給水局（５）に備え、中央局（１１）で決
定された水位になるように給水バルブ（２１）を自動制
御して各水田（４）に給水すると共に、送受信機（２
２）と、排水コントローラ（２３）と、水位計（２４）
と、水温計（２５）と、排水バルブ（２６）を備え、水
田（４）の水位を水位計（２４）によって検知し、かつ
水田（４）の水温を水温計（２５）によって検知し、中
央局（１１）で決定された水位になるように排水バルブ
（２６）を自動制御し、各水田（４）から排水するよう
に構成している。なお、隣接する複数の水田（４）のい
ずれか１つの基準となる水田（４）の給水温及び排水温
を検知して各水田（４）の水温データとしてもよい。Further, in each paddy field (4), a water supply station (5)
And a drainage bureau (7), and a transceiver (18)
, A water supply controller (19), a water temperature gauge (20) for detecting a water supply temperature, and a water supply valve (2
1) is provided in the water supply station (5), the water supply valve (21) is automatically controlled so that the water level is determined by the central office (11), and water is supplied to each paddy field (4). 2
2), drainage controller (23), water level gauge (24)
, A water temperature gauge (25), and a drain valve (26), the water level of the paddy field (4) is detected by the water level meter (24), and the water temperature of the paddy field (4) is detected by the water temperature meter (25), The drain valve (26) is automatically controlled so that the water level is determined by the central office (11), and the water is drained from each paddy (4). In addition, the water supply temperature and the drainage temperature of the paddy field (4) serving as one reference of the plurality of adjacent paddy fields (4) may be detected and used as the water temperature data of each paddy field (4).
【００１５】さらに、送受信機（２７）と、水田コント
ローラ（２８）と、気温を検知する気温計（２９）と、
地盤面または地中の温度を検知する地温計（３０）と、
日照時間を計測する日照計（３１）と、前記給水路
（２）の瞬時流水量及び積算流水量を計測する流量計
（３２）と、基準水田（４）の稲の含有栄養分（窒素ま
たは燐など）を葉緑素の光学検出などによって計測する
作物計（３３）を、前記水田局（１２）に備え、中央局
（１１）と各局（３）（５）（７）（１０）とのデータ
及び制御信号の中継並びに各水田（４）データの計測と
中央局（１１）への送信を水田局（１２）によって行
い、浄化装置（１０）を設置する地域単位で水田の水管
理に伴う各種制御を行わせるように構成している。Further, a transceiver (27), a paddy field controller (28), a thermometer (29) for detecting air temperature,
A geothermometer (30) for detecting the temperature of the ground surface or underground;
A sunshine meter (31) for measuring the sunshine hours, a flowmeter (32) for measuring the instantaneous and integrated water flows in the water supply channel (2), and a nutrient content (nitrogen or phosphorus) of rice in the reference paddy (4). The paddy bureau (12) is equipped with a crop meter (33) for measuring chlorophyll by optical detection of chlorophyll, etc., and the data of the central bureau (11) and each bureau (3) (5) (7) (10) and The relay of the control signal, the measurement of each paddy (4) data and the transmission to the central station (11) are performed by the paddy station (12), and various controls associated with the water management of the paddy in the area where the purification device (10) is installed. Is configured to be performed.
【００１６】さらに、送受信機（３４）と、浄化コント
ローラ（３５）と、浄化装置（１０）の給水側で水質
（窒素及び燐などの含有量）を検知する未処理水質計
（３６）と、浄化装置（１０）の給水側を給水路（２）
の最上流に接続させる循環水路（３７）と、前記排水路
（６）から最終排水路（９）に流下した排水を浄化装置
（１０）または循環水路（３７）に選択排出させる未処
理バルブ（３８）と、循環水路（３７）の排水を給水路
（２）に圧送させる送水用循環ポンプ（３９）を、浄化
装置（１０）に備え、前記排水路（６）及び最終排水路
（９）を介して水田（４）の排水を浄化装置（１０）に
流下させて浄化後の排水を河川（８）に放出させると共
に、最終排水路（９）に流入する排水に含まれる窒素及
び燐などの栄養分（残留肥料）を未処理水質計（３６）
によって計測させ、該水質計（３６）の検出結果並びに
水田局（１２）の作物計（３３）の検出結果に基づき、
未処理バルブ（３８）を循環水路（３７）側に切換え、
循環ポンプ（３９）を作動させ、排水路（６）（９）か
らの排水を循環水路（３７）を介して給水路（２）の最
上流側に戻し、水田（４）に再供給するように構成して
いる。Further, a transceiver (34), a purification controller (35), an untreated water quality meter (36) for detecting water quality (content of nitrogen and phosphorus, etc.) on the water supply side of the purification device (10), Connect the water supply side of the purification device (10) to the water supply channel (2)
A circulating water channel (37) connected to the uppermost stream of the water, and an untreated valve (41) for selectively discharging the waste water flowing down from the drainage channel (6) to the final drainage channel (9) to the purification device (10) or the circulating water channel (37). 38) and a water supply circulating pump (39) for pumping the drainage of the circulating water channel (37) to the water supply channel (2) in the purification device (10), and the drainage channel (6) and the final drainage channel (9). The drainage of the paddy (4) flows down to the purification device (10) through the sewage system, and the purified wastewater is discharged to the river (8), and nitrogen and phosphorus contained in the wastewater flowing into the final drainage channel (9). Nutrient (residual fertilizer) untreated water quality meter (36)
Based on the detection result of the water quality meter (36) and the detection result of the crop meter (33) of the paddy field bureau (12).
Switching the untreated valve (38) to the circulating water channel (37) side,
By operating the circulation pump (39), the drainage water from the drainage channels (6) and (9) is returned to the uppermost stream side of the water supply channel (2) via the circulation channel (37) so as to be resupplied to the paddy field (4). It is composed.
【００１７】上記から明らかなように、水田（４）の水
を制御する水田管理システムにおいて、水田（４）の水
を河川（８）に流出させる排水路（６）（９）に排水浄
化施設である浄化装置（１０）を設け、水田（４）から
河川（８）に排出される肥料または薬剤を低減させ、水
田（４）排水に含まれる有機汚濁並びに窒素及び燐など
を削減させ、河川（８）の環境保全並びに水田（４）排
水の再利用による節水などを図ると共に、水田（４）か
らの排水を水田（４）に再供給させる水路切換装置であ
る未処理バルブ（３８）を排水浄化装置（１０）の給水
側に設け、浄化前の排水を水田（４）に戻すことによ
り、節水によって水不足を防止し、また排水温によって
水田（４）の温度低下を防止し、排水の再利用によって
干ばつまたは冷害などによる稲の成育不良を低減させる
ように構成している。As apparent from the above description, in the paddy field management system for controlling the water in the paddy field (4), the drainage channels (6) and (9) for discharging the water in the paddy field (4) to the river (8) are provided with drainage purification facilities. A fertilizer or a chemical discharged from the paddy field (4) to the river (8), and reduce organic pollutants, nitrogen and phosphorus contained in the drainage of the paddy field (4). The untreated valve (38), which is a waterway switching device for re-supplying the water discharged from the paddy field (4) to the paddy field (4), while conserving the environment in (8) and reusing the drainage (4) wastewater, etc. It is installed on the water supply side of the wastewater purification device (10), and the wastewater before purification is returned to the paddy field (4), thereby preventing water shortage by saving water and preventing the temperature of the paddy field (4) from lowering by the drainage temperature. Drought or cold damage due to reuse It is configured to reduce the growth defect of rice by.
【００１８】また、水田（４）排水の水質を検出する水
質検知手段である未処理水質計（３６）を未処理バルブ
（３８）の上流側に設け、未処理水質計（３６）の検出
結果に基づき未処理バルブ（３８）を自動的に切換え、
水田（４）排水に含まれている窒素または燐などの栄養
分を排水の循環によって水田（４）に再供給させ、稲な
どの成育に必要な栄養分を確保し乍ら肥料の使用量を低
減させ、また排水の循環によって水田の自然浄化を活用
し、施肥及び排水浄化の経費削減または省力化などを図
ると共に、水田（４）に必要な稲育成水量と未処理バル
ブ（３８）の循環水量とに基づき、水源（１）から取込
む補充水量を自動制御し、稲の吸収及び自然蒸発などに
よる不足分だけを水源（１）から補い、水源（１）から
の給水量を低減して河川（８）などの自然流水量を確保
すると共に、排水の循環によって水田（４）給水側の栄
養不足並びに水田（４）排水側の栄養過多などを防止
し、水田（４）全域に栄養分を均等に供給して栄養過不
足による成育むら等を防止するように構成している。Further, an untreated water quality meter (36), which is a water quality detecting means for detecting the water quality of the drainage of the paddy field (4), is provided upstream of the untreated valve (38), and the detection result of the untreated water quality meter (36) is provided. Automatically switches the raw valve (38) based on
Nutrients such as nitrogen or phosphorus contained in the drainage (4) wastewater are re-supplied to the paddy (4) by circulating the wastewater to reduce the use of fertilizer while securing the nutrients necessary for growing rice and the like. Utilizing the natural purification of paddy fields by circulating wastewater to reduce the cost or labor for fertilization and wastewater purification, and to increase the amount of rice growing water required for paddy fields (4) and the amount of circulating water for untreated valves (38). Automatically controls the amount of replenished water taken in from the water source (1), supplements only the shortage due to rice absorption and natural evaporation from the water source (1), and reduces the amount of water supplied from the water source (1) to the river ( 8) In addition to ensuring natural water flow, such as drainage circulation, prevent undernutrition in the paddy field (4) water supply side and overnutrition in the paddy field (4) drainage side, and evenly distribute nutrients throughout the paddy field (4). Supply and uneven growth due to overnutrition It is configured to be prevented.
【００１９】また、水田（４）からの排水中に含まれる
作物栄養分を未処理水質計（３６）によって検出して未
処理バルブ（３８）を自動制御し、水田（４）排水中の
栄養分の多少を判断して排水を循環させたり排出させ、
水田（４）に供給する栄養分を排水循環または排出によ
って調節し、施肥管理の簡略化などを図ると共に、水田
（４）内の作物（稲）の含有栄養分を検出する作物検知
手段である作物計（３３）を設け、作物計（３３）の検
出結果に基づき作物（稲）を水田（４）別に区別して排
水浄化装置（１０）の給水側から水田（４）排水を水田
（４）に自動的に戻し、作物（稲）の栄養過不足を判断
して排水を循環させ、水田（４）を特定して排水循環に
よる栄養補給を行い、施肥効率の向上並びに排水浄化作
業の簡略化などを図る一方、作物計（３３）の検出結果
に基づき区別した水田（４）に排水を戻すときに他の水
田（４）の給水を自動的に中止させ、複数の水田（４）
に兼用する給水路（２）を介して特定の水田（４）に排
水を循環させ、例えば水源（１）からの給水を行うこと
なく必要な給水量を確保できると共に、複数水田（４）
の作物（稲）を均一に成育させて水田（４）間の収穫量
の差を低減させるように構成している。なお、前記作物
計（３３）は、光学分析によって稲の葉緑素濃度を測定
して稲の窒素含有量を検出したり、スペクトル分析によ
って燐酸濃度を検出し、窒素または燐などの栄養分の保
有量を水田（４）別に作物（稲）サンプルから計測す
る。The untreated water quality meter (36) detects the crop nutrients contained in the wastewater from the paddy field (4) and automatically controls the untreated valve (38) so that the nutrient content in the wastewater from the paddy field (4) is automatically controlled. Judge the amount and circulate or drain the wastewater,
The crop meter, which is a crop detecting means that adjusts nutrients supplied to the paddy field (4) by drainage circulation or discharge to simplify fertilization management and detects the nutrient content of the crop (rice) in the paddy field (4). (33) is provided, and based on the detection result of the crop meter (33), the crop (rice) is classified into each paddy field (4), and the paddy field (4) is automatically discharged from the water supply side of the drainage purification device (10) to the paddy field (4). To re-establish the quality of crops (rice), determine the overnutrition of the crop (rice), circulate the wastewater, identify the paddy field (4), replenish the nutrition by drainage circulation, improve the fertilization efficiency and simplify the wastewater purification work. On the other hand, when returning the drainage to the paddy field (4) distinguished based on the detection result of the crop meter (33), the water supply to the other paddy fields (4) is automatically stopped, and the plurality of paddy fields (4)
The wastewater is circulated to a specific paddy field (4) through a water supply channel (2) that also serves as a water source, and for example, a required water supply amount can be secured without supplying water from a water source (1), and a plurality of paddy fields (4)
Crops (rice) are grown uniformly to reduce the difference in yield between paddy fields (4). The crop meter (33) measures the chlorophyll concentration of rice by optical analysis to detect the nitrogen content of the rice, or detects the phosphoric acid concentration by spectral analysis to determine the amount of nutrients such as nitrogen or phosphorus. It is measured from crop (rice) samples for each paddy field (4).
【００２０】さらに、前記浄化装置（１０）の排水側で
水質（窒素または燐などの含有量）を検知する処理水質
計（４０）と、浄化装置（１０）の排水側を給水側に接
続させる還元水路（４１）と、浄化装置（１０）から最
終排出路（９）に流下した排水を河川（８）または還元
水路（４１）に選択排出させる処理バルブ（４２）と、
還元水路（４１）の排水を浄化装置（１０）の給水側に
圧送させる還元ポンプ（４３）を、浄化装置（１０）に
備え、水田（４）排水を浄化装置（１０）に循環させる
と共に、還元ポンプ（４３）下流側の還元水路（４１）
を循環水路（３７）に選択接続させる切換バルブ（４
４）を、浄化装置（１０）に備え、浄化装置（１０）排
水側を各バルブ（４２）（４４）及び還元ポンプ（４
３）を介して循環水路（３７）に接続させ、浄化後の排
水を給水路（２）最上手に戻して水田（４）の給水不足
を補うように構成している。Further, a treated water quality meter (40) for detecting water quality (content of nitrogen or phosphorus, etc.) at a drain side of the purifier (10) and a drain side of the purifier (10) are connected to a water supply side. A reducing water channel (41), a treatment valve (42) for selectively discharging the wastewater flowing down from the purification device (10) to the final discharge channel (9) to the river (8) or the reducing water channel (41),
The purification device (10) is provided with a reduction pump (43) for pumping the wastewater from the reduction water channel (41) to the water supply side of the purification device (10), and the paddy (4) wastewater is circulated through the purification device (10). Reduction pump (43) Downstream reduction water channel (41)
Valve (4) for selectively connecting the circulating water channel (37)
4) is provided in the purification device (10), and the drainage side of the purification device (10) is connected to each of the valves (42) and (44) and the reduction pump (4).
3) is connected to the circulation water channel (37), and the drained water after purification is returned to the uppermost water supply channel (2) to compensate for the shortage of water supply in the paddy field (4).
【００２１】上記から明らかなように、排水浄化装置
（１０）の下流側に排水路切換手段である処理バルブ
（４２）及び排水質検知手段である処理水質計（４０）
を設け、排水浄化装置（１０）からの排水が不適正水質
のときに循環させて自動的に再浄化させ、水田（４）か
らの排水量の変化、並びに水田（４）排水の水質変化、
並びに浄化装置（１０）の浄化力の経時的変化などに対
し、浄化装置（１０）から河川（８）に放水する排水の
水質を一定規準以上に維持させ、排水浄化作業の簡略化
及び省力化並びに排水浄化コスト低減などを図るように
構成している。As is apparent from the above description, a treatment valve (42) serving as a drain passage switching means and a treatment water quality meter (40) serving as a waste water detection means are provided downstream of the waste water purification device (10).
, When the wastewater from the wastewater purification device (10) has inappropriate water quality, circulates and automatically repurifies the water, changes in the amount of wastewater from the paddy field (4), and changes in the water quality of the wastewater from the paddy field (4).
In addition, the water quality of the wastewater discharged from the purification device (10) to the river (8) is maintained at a certain level or more in response to the change over time in the purification power of the purification device (10), thereby simplifying the wastewater purification work and saving labor. It is also configured to reduce wastewater purification costs.
【００２２】[0022]
【発明の効果】以上実施例から明らかなように本発明
は、水田（４）の水を制御する水田管理システムにおい
て、水田（４）の水を河川（８）に流出させる排水路
（６）（９）に排水浄化施設（１０）を設けたもので、
水田（４）から河川（８）に排出される肥料または薬剤
を容易に低減でき、水田（４）排水に含まれる有機汚濁
並びに窒素及び燐などを容易に削減でき、河川（８）の
環境保全並びに水田（４）排水の再利用による節水など
を容易に図ることができるものである。As is apparent from the above embodiments, the present invention relates to a paddy field management system for controlling water in a paddy field (4), a drainage channel (6) for discharging water from the paddy field (4) to a river (8). (9) was provided with a wastewater purification facility (10),
Fertilizers or chemicals discharged from the paddy field (4) to the river (8) can be easily reduced, and organic pollutants, nitrogen and phosphorus contained in the drainage of the paddy field (4) can be easily reduced, and the river (8) is environmentally protected. In addition, it is possible to easily save water by reusing paddy (4) wastewater.
【００２３】また、水田（４）からの排水を水田（４）
に再供給させる水路切換装置（３８）を排水浄化装置
（１０）の給水側に設けたもので、浄化前の排水を水田
（４）に戻すことにより、節水によって水不足を容易に
防止でき、また排水温によって水田（４）の温度低下を
容易に防止でき、排水の再利用によって干ばつまたは冷
害などによる稲の成育不良を容易に低減できるものであ
る。The drainage from the paddy field (4) is transferred to the paddy field (4).
A water channel switching device (38) for re-supplying water is provided on the water supply side of the waste water purification device (10). By returning waste water before purification to the paddy field (4), water shortage can be easily prevented by water saving, and The temperature of the wastewater can easily prevent the temperature of the paddy field (4) from decreasing, and the reuse of the wastewater can easily reduce poor rice growth due to drought or cold damage.
【００２４】また、水田（４）排水の水質を検出する水
質検知手段（３６）を水路切換装置（３８）の上流側に
設け、水質検知手段（３６）の検出結果に基づき水路切
換装置（３８）を自動的に切換えるように構成したもの
で、水田（４）排水に含まれている窒素または燐などの
栄養分を排水の循環によって水田（４）に再供給でき、
稲などの成育に必要な栄養分を確保し乍ら肥料の使用量
を容易に低減でき、また排水の循環によって水田の自然
浄化を活用でき、施肥及び排水浄化の経費削減または省
力化などを容易に図ることができるものである。Further, a water quality detecting means (36) for detecting the water quality of the drainage of the paddy field (4) is provided upstream of the water channel switching device (38), and the water channel switching device (38) is detected based on the detection result of the water quality detecting device (36). ) Is automatically switched, and nutrients such as nitrogen or phosphorus contained in the paddy field (4) wastewater can be re-supplied to the paddy field (4) by circulation of the wastewater,
The amount of fertilizer used can be easily reduced while securing the nutrients necessary for the growth of rice, etc., and the natural purification of paddy fields can be utilized by circulating wastewater, making it easy to reduce the cost or labor saving of fertilization and wastewater purification. It can be planned.
【００２５】また、水田（４）に必要な稲育成水量と水
路切換装置（３８）の循環水量とに基づき、水源（１）
から取込む補充水量を自動制御するように構成したもの
で、稲の吸収及び自然蒸発などによる不足分だけを水源
（１）から補うから、水源（１）からの給水量を低減し
て河川（８）などの自然流水量を容易に確保できると共
に、排水の循環によって水田（４）給水側の栄養不足並
びに水田（４）排水側の栄養過多などを容易に防止で
き、水田（４）全域に栄養分を均等に供給して栄養過不
足による成育むら等を容易に防止できるものである。Further, based on the amount of rice growing water required for the paddy field (4) and the amount of circulating water of the waterway switching device (38), the water source (1)
It is configured to automatically control the amount of replenishing water taken in from the water source (1), which compensates only for the shortage due to rice absorption and natural evaporation, etc., so that the amount of water supplied from the water source (1) is reduced and the river ( 8) and other natural water flows can be easily secured, and the circulation of drainage can easily prevent undernutrition in the paddy field (4) water supply side and overnutrition in the paddy field (4) drainage side. Nutrients can be evenly supplied to easily prevent uneven growth due to overnutrition.
【００２６】また、水田（４）からの排水中に含まれる
作物栄養分を水質検知手段（３６）によって検出して水
路切換装置（３８）を自動制御するように構成したもの
で、水田（４）排水中の栄養分の多少を判断して排水を
循環させたり排出でき、水田（４）に供給する栄養分を
排水循環または排出によって容易に調節でき、施肥管理
の簡略化などを容易に図ることができるものである。In addition, the water quality detecting means (36) detects crop nutrients contained in the drainage water from the paddy field (4) and automatically controls the waterway switching device (38). The drainage can be circulated or discharged by judging the amount of nutrients in the drainage, the nutrient supplied to the paddy field (4) can be easily adjusted by drainage circulation or discharge, and the fertilization management can be simplified easily. Things.
【００２７】また、水田（４）内の作物の含有栄養分を
検出する作物検知手段（３３）を設け、作物検知手段
（３３）の検出結果に基づき作物を水田（４）別に区別
して排水浄化装置（１０）の給水側から水田（４）排水
を水田（４）に自動的に戻すように構成したもので、作
物の栄養過不足を判断して排水を循環させることがで
き、水田（４）を特定して排水循環による栄養補給を行
うことができ、施肥効率の向上並びに排水浄化作業の簡
略化などを容易に図ることができるものである。A crop detecting means (33) for detecting the nutrient content of the crop in the paddy field (4) is provided. The paddy field (4) is configured to automatically return the drainage from the water supply side to the paddy field (4) from the water supply side of (10). And nutrient supply by drainage circulation can be performed, and the efficiency of fertilizer application and simplification of drainage purification work can be easily achieved.
【００２８】また、作物検知手段（３３）の検出結果に
基づき区別した水田（４）に排水を戻すときに他の水田
（４）の給水を自動的に中止させるように構成したもの
で、複数の水田（４）に兼用する給水路（２）を介して
特定の水田（４）に排水を循環させることができ、例え
ば水源（１）からの給水を行うことなく必要な給水量を
容易に確保できると共に、複数水田（４）の作物を均一
に成育させて水田（４）間の収穫量の差を容易に低減で
きるものである。Further, when returning the drainage to the paddy field (4) distinguished based on the detection result of the crop detecting means (33), the water supply to the other paddy field (4) is automatically stopped. Drainage can be circulated to a specific paddy field (4) through a water supply channel (2) that also serves as a paddy field (4), and for example, the required water supply amount can be easily reduced without supplying water from the water source (1). In addition, the crops in the plurality of paddy fields (4) can be grown uniformly, and the difference in yield between the paddy fields (4) can be easily reduced.
【００２９】また、排水浄化装置（１０）の下流側に排
水路切換手段（４２）及び排水質検知手段（４０）を設
け、排水浄化装置（１０）からの排水が不適正水質のと
きに循環させて自動的に再浄化させるように構成したも
ので、水田（４）からの排水量の変化、並びに水田
（４）排水の水質変化、並びに浄化装置（１０）の浄化
力の経時的変化などに対し、浄化装置（１０）から河川
（８）に放水する排水の水質を一定規準以上に容易に維
持でき、排水浄化作業の簡略化及び省力化並びに排水浄
化コスト低減などを容易に図ることができるものであ
る。Further, a drainage channel switching means (42) and a wastewater quality detecting means (40) are provided downstream of the wastewater purification apparatus (10) to circulate the wastewater from the wastewater purification apparatus (10) when the water quality is inappropriate. It is configured to automatically re-purify the water and change the amount of drainage from the paddy field (4), the water quality of the paddy field (4) drainage, and the change over time of the purification power of the purification device (10). On the other hand, the quality of the wastewater discharged from the purification device (10) to the river (8) can be easily maintained at a certain level or more, and the wastewater purification work can be simplified and labor-saving, and the wastewater purification cost can be easily reduced. Things.
【図１】全体の説明図である。FIG. 1 is an overall explanatory diagram.
【図２】全体の制御系統図である。FIG. 2 is an overall control system diagram.
（１） 水源 （４） 水田 （６） 排水路 （８） 河川 （９） 最終排水路 （１０） 浄化装置（排水浄化施設） （３３） 作物計（作物検知手段） （３６） 未処理水質計（水質検知手段） （３８） 未処理バルブ（水路切換装置） （４０） 処理水質計（排水質検知手段） （４２） 処理バルブ（排水路切換手段） (1) Water source (4) Paddy field (6) Drainage channel (8) River (9) Final drainage channel (10) Purification device (Wastewater purification facility) (33) Crop meter (Crop detection means) (36) Untreated water quality meter (Water quality detection means) (38) Untreated valve (water channel switching device) (40) Treated water quality meter (drainage quality detection means) (42) Treatment valve (drainage channel switching means)
Claims (8)
おいて、水田の水を河川に流出させる排水路に排水浄化
施設を設けたことを特徴とする水田管理システム。1. A paddy field management system for controlling water in a paddy field, wherein a drainage purification system is provided in a drainage channel for discharging water from the paddy field to a river.
路切換装置を排水浄化装置の給水側に設けたことを特徴
とする請求項１に記載の水田管理システム。2. The paddy field management system according to claim 1, wherein a water channel switching device for re-supplying drainage from the paddy field to the paddy field is provided on a water supply side of the drainage purification device.
を水路切換装置の上流側に設け、水質検知手段の検出結
果に基づき水路切換装置を自動的に切換えるように構成
したことを特徴とする請求項２に記載の水田管理システ
ム。3. A water quality detecting means for detecting the water quality of paddy drainage is provided upstream of the water channel switching device, and the water channel switching device is automatically switched based on the detection result of the water quality detecting device. The paddy field management system according to claim 2.
の循環水量とに基づき、水源から取込む補充水量を自動
制御するように構成したことを特徴とする請求項２に記
載の水田管理システム。4. The paddy field management according to claim 2, wherein the amount of supplementary water taken from the water source is automatically controlled based on the amount of rice growing water required for the paddy field and the amount of circulating water of the waterway switching device. system.
を水質検知手段によって検出して水路切換装置を自動制
御するように構成したことを特徴とする請求項３に記載
の水田管理システム。5. The paddy field management system according to claim 3, wherein a crop nutrient contained in the drainage from the paddy field is detected by a water quality detecting means, and the water channel switching device is automatically controlled.
物検知手段を設け、作物検知手段の検出結果に基づき作
物を水田別に区別して排水浄化装置の給水側から水田排
水を水田に自動的に戻すように構成したことを特徴とす
る請求項５に記載の水田管理システム。6. A crop detecting means for detecting nutrient content of crops in a paddy field, wherein the crops are classified into the respective paddy fields based on the detection result of the crop detecting means, and the paddy drainage is automatically supplied to the paddy field from the water supply side of the drainage purification device. The paddy field management system according to claim 5, wherein the paddy field management system is configured to return.
た水田に排水を戻すときに他の水田の給水を自動的に中
止させるように構成したことを特徴とする請求項６に記
載の水田管理システム。7. The paddy field management according to claim 6, wherein the water supply to another paddy field is automatically stopped when the drainage is returned to the paddy field distinguished based on the detection result of the crop detecting means. system.
及び排水質検知手段を設け、排水浄化装置からの排水が
不適正水質のときに循環させて自動的に再浄化させるよ
うに構成したことを特徴とする水田管理システム。8. A drain passage switching means and a waste water quality detecting means are provided downstream of the waste water purification device, and the waste water from the waste water purification device is circulated and automatically re-purified when the waste water has inappropriate water quality. Paddy field management system characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28325598A JP4169118B2 (en) | 1998-09-18 | 1998-09-18 | Paddy field management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28325598A JP4169118B2 (en) | 1998-09-18 | 1998-09-18 | Paddy field management system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000096545A true JP2000096545A (en) | 2000-04-04 |
| JP4169118B2 JP4169118B2 (en) | 2008-10-22 |
Family
ID=17663094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28325598A Expired - Fee Related JP4169118B2 (en) | 1998-09-18 | 1998-09-18 | Paddy field management system |
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| Country | Link |
|---|---|
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015113635A (en) * | 2013-12-12 | 2015-06-22 | Ｊｆｅスチール株式会社 | Water gate opening control system |
| JP2016220681A (en) * | 2015-05-29 | 2016-12-28 | 株式会社笑農和 | Water level management system |
| CN107368109A (en) * | 2017-07-24 | 2017-11-21 | 中国科学院测量与地球物理研究所 | User oriented rice field water water quality remote regulates and controls method |
| JP2018000181A (en) * | 2016-07-06 | 2018-01-11 | 伸介 冨永 | Method for concentrated control of rice culture |
| WO2023248984A1 (en) * | 2022-06-20 | 2023-12-28 | 株式会社デンソー | Watering system and control device |
-
1998
- 1998-09-18 JP JP28325598A patent/JP4169118B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015113635A (en) * | 2013-12-12 | 2015-06-22 | Ｊｆｅスチール株式会社 | Water gate opening control system |
| JP2016220681A (en) * | 2015-05-29 | 2016-12-28 | 株式会社笑農和 | Water level management system |
| JP2018000181A (en) * | 2016-07-06 | 2018-01-11 | 伸介 冨永 | Method for concentrated control of rice culture |
| CN107368109A (en) * | 2017-07-24 | 2017-11-21 | 中国科学院测量与地球物理研究所 | User oriented rice field water water quality remote regulates and controls method |
| CN107368109B (en) * | 2017-07-24 | 2020-05-08 | 中国科学院测量与地球物理研究所 | User-oriented rice field water quantity and water quality remote control method |
| WO2023248984A1 (en) * | 2022-06-20 | 2023-12-28 | 株式会社デンソー | Watering system and control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4169118B2 (en) | 2008-10-22 |
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