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VASCULAR BUNDLE LIQUID MEASUREMENT SENSOR

Foreign code F210010479
File No. (S2019-0673-N0)
Posted date 2021年7月29日
Country 世界知的所有権機関(WIPO)
International application number 2020JP038182
International publication number WO 2021070913
Date of international filing 令和2年10月8日(2020.10.8)
Date of international publication 令和3年4月15日(2021.4.15)
Priority data
  • 特願2019-186455 (2019.10.10) JP
Title VASCULAR BUNDLE LIQUID MEASUREMENT SENSOR
Abstract 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.
Outline of related art and contending technology 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.
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • KAGAWA UNIVERSITY
  • Inventor
  • SHIMOKAWA Fusao
  • ISHIDA Kazuma
IPC(International Patent Classification)
Specified countries 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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