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VASCULAR BUNDLE LIQUID MEASUREMENT SENSOR

外国特許コード F210010479
整理番号 (S2019-0673-N0)
掲載日 2021年7月29日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2020JP038182
国際公開番号 WO 2021070913
国際出願日 令和2年10月8日(2020.10.8)
国際公開日 令和3年4月15日(2021.4.15)
優先権データ
  • 特願2019-186455 (2019.10.10) JP
発明の名称 (英語) VASCULAR BUNDLE LIQUID MEASUREMENT SENSOR
発明の概要(英語) Provided is a vascular bundle liquid measurement sensor capable of directly measuring the pH of a vascular bundle liquid of a plant. A vascular bundle liquid measurement sensor 1 comprises: an indicator electrode probe (20) provided with an indicator electrode (21) including an ion-sensitive field-effect transistor; a base layer formed of an electrical conductor; a silver chloride layer formed on a surface of the base layer; a reference electrode probe (30) provided with a reference electrode (31) including a chloride layer formed on a surface of the silver chloride layer; and a support part (10) that supports the indicator electrode probe (20) and the reference electrode probe (30) with these probes arranged in parallel. The pH of the vascular bundle liquid of a plant can be measured by sticking the indicator electrode probe (20) and the reference electrode probe (30) into the plant.
従来技術、競合技術の概要(英語) BACKGROUND ART
In the production of crops and fruit trees, it is desirable to irrigate and supplement nutrients at appropriate times in accordance with the growth state of the plants from the perspective of productivity. However, in many agricultural sites, irrigation and nutrient supplementation are currently performed by experience and intuition on the basis of rain free days and the like. Such empiry-dependent methods are skilled, laborious and time-consuming. In addition, because the index serving as a reference is a personal experience, it is difficult for anyone to easily implement the index.
In recent years, movement for introducing information technology into agriculture, such as smart aggression, has become active. Information technology is expected to provide optimal production based on plant biological information independent of humans.
For example, Non-Patent Document 1 discloses measuring the pH of soil. The pH of the soil is used to confirm the state and health of the crop. Non-Patent Document 2 discloses measuring the electrical conductivity of soil. The concentration of nutrient components contained in the soil can be estimated from the electrical conductivity.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • KAGAWA UNIVERSITY
  • 発明者(英語)
  • SHIMOKAWA Fusao
  • ISHIDA Kazuma
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS IT JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN WS ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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