閉鎖系養液循環システムの植物栽培への適用 Application of Nutrient Solution Circulation System to Plant Cultivation in the Closed Ecology Experiment Facilities

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Establishment of an experimental system composed of plants, animals and humans, in which materials are circulated in a closed loop, is underway using the Closed Ecology Experiment Facilities (CEEF), for investigation of carbon dynamics. The plant cultivation system takes roles of supplying food, oxygen and clean water to, and scrubbing carbon dioxide from, humans and animals in the experimental system. A hydro-culture technique is used for the plant culture system. It is necessary to circulate nutrient solution in the plant cultivation system in order to circulate water in the CEEF. To obtain data on carbon transfer using the CEEF, it is necessary to establish a steady plant cultivation system. In the system, water transpired from the plants are collected as condensate, and it is reused for replenishment of water in each plant cultivation bed. In order to circulate water, not only transpired water but also waste nutrient solution need to be regenerated and reused. Main crops in the plant cultivation system include rice, soybean and peanut. Some elements such as copper and zinc were accumulated, but total organic carbon (TOC) did not increase in the nutrient solution, when the nutrient solution was circulated. This study compared the soybean yield cultivated using the circulated nutrient solution (circulating system) with that cultivated using newly produced solution (non-circulating system). Result of this study showed that circulation of nutrient solution did not decrease soybean production compared to that without circulation of nutrient solution. This research was performed under contract with the Aomori Prefectural Government, Japan.

収録刊行物

  • Eco-engineering = 生態工学  

    Eco-engineering = 生態工学 20(1), 5-10, 2008-01-31 

    The Society of Eco-Engineering

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各種コード

  • NII論文ID(NAID)
    10021124861
  • NII書誌ID(NCID)
    AA12005685
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13470485
  • NDL 記事登録ID
    9377370
  • NDL 雑誌分類
    ZM33(科学技術--宇宙科学) // ZR1(科学技術--生物学)
  • NDL 請求記号
    Z15-644
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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