日射量対応型極微量灌水装置に対応した排液量参照制御装置の開発

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  • Development of Device to Minimize Drainage for Solar-Radiation-Dependent Drip-Irrigation System
  • ニッシャリョウ タイオウガタ キョクビリョウ カンスイ ソウチ ニ タイオウ シタ ハイエキリョウ サンショウ セイギョ ソウチ ノ カイハツ

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We have developed a new device to minimize drainage for solar-radiation-dependent drip-irrigation system. This system was examined in tomato cultivation. 1) We have developed a device to see water level sensor detecting the amount of water in tank drainage. 2) This device is able to reduce irrigation water about 0.5 L per plant per day. 3) In tomato culture by low-node order pinching (4th or 5th trusses) at high plant density, the fruit yield 1.7 kg per plant in winter cropping and 1.3 kg per plant in summer cropping were attained, respectively using this system.

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