Establishment and Extension of a New Water-saving-type Sprinkler System Called “Zero-control” for Frost Protection in the Soo Region of Kagoshima Prefecture
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- Tomihama Tsuyoshi
- Soo Promotional Center of Field Irrigation Agriculture
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- Tanaka Toshihiro
- Tea Division Osumi Branch, Kagoshima Prefectural Institute for Agricultural Development
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- Horiguchi Daisuke
- Kagoshima Horiguchi Seicha Tea Manufacture Inc.
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- Horiguchi Suguru
- Kagoshima Horiguchi Seicha Tea Manufacture Inc.
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- Horiguchi Yasuhisa
- Kagoshima Horiguchi Seicha Tea Manufacture Inc.
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- Katoh Masaaki
- Nippon Keiki Kagoshima Works Co., Ltd.
Bibliographic Information
- Other Title
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- 鹿児島県曽於地域における新節水型散水氷結防霜制御「0℃制御」の現地実証と普及
- カゴシマケン ソオ チイキ ニ オケル シン セッスイガタ サンスイ ヒョウケツボウシモ セイギョ 「 0℃ セイギョ 」 ノ ゲンチ ジッショウ ト フキュウ
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Abstract
The freezing method is most effective for frost protection in tea production; however, preparation of enough water for application has been difficult. Recently, Zero-control, a new water-saving-type sprinkler system that helps maintain the tea canopy temperature above its critical temperature by controlling water application via a temperature sensor, has been developed. In this study, we report the establishment and extension of Zero-control adapted to a 100-second rotation application system popular in the Soo region of Kagoshima Prefecture. In the test tea field, Zero-control maintained the tea canopy temperature above -1℃ after freezing, and no frost damage was observed in the spring of 2011, which had frequent hard frost. In addition, water consumption by Zero-control was 57% less than that by the 100-second rotation application system. For the use of Zero-control, both sensitivity and setting location of the temperature sensor of the system are important, especially in tea fields that have a temperature gradient. Because it has been proven that Zero-control can protect tea shoots from frost damage and save water effectively, many tea farmers have introduced Zero-control in their sprinkler systems. We taught practical use of Zero-control to tea farmers. After water application using Zero-control was started in the autumn of 2011, shortage of water supply and frost damage of tea shoots have not occurred.
Journal
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- Chagyo Kenkyu Hokoku (Tea Research Journal)
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Chagyo Kenkyu Hokoku (Tea Research Journal) 2012 (114), 114_45-114_56, 2012
Japanese Society of Tea Science and Technology
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Details 詳細情報について
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- CRID
- 1390282680313581824
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- NII Article ID
- 40019577410
- 130005106994
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- NII Book ID
- AN00143344
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- ISSN
- 1883941X
- 03666190
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- NDL BIB ID
- 024263818
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed