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  1. JIRCAS Working Report
  2. No. 88

Suitable inflow rate and furrow length for Simplified Surge Flow Irrigation

https://doi.org/10.34556/0002000235
https://doi.org/10.34556/0002000235
3485e0a1-259f-4afe-ba0f-ca15db9e4fa1
名前 / ファイル ライセンス アクション
jircas_working_report88-_51-63.pdf jircas_working_report88-_51-63 (557KB)
Item type 国際農研デフォルトアイテムタイプ(フル)(1)
公開日 2024-05-01
タイトル
タイトル Suitable inflow rate and furrow length for Simplified Surge Flow Irrigation
言語 en
作成者 ONISHI, Junya

× ONISHI, Junya

en ONISHI, Junya

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IKEURA, Hiroshi

× IKEURA, Hiroshi

en IKEURA, Hiroshi

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PALUASHOVA, Gaukhar K.

× PALUASHOVA, Gaukhar K.

en PALUASHOVA, Gaukhar K.

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SHIROKOVA, Yulia I.

× SHIROKOVA, Yulia I.

en SHIROKOVA, Yulia I.

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KITAMURA, Yoshinobu

× KITAMURA, Yoshinobu

en KITAMURA, Yoshinobu

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FUJIMAKI, Haruyuki

× FUJIMAKI, Haruyuki

en FUJIMAKI, Haruyuki

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
主題
主題 Arid land, Salinization, Water-saving, Furrow irrigation, Surge Flow irrigation
内容記述
内容記述タイプ Other
内容記述 In the arid lands covering Uzbekistan, furrow irrigation with low application efficiency is still widely used due to a lack of funds and shortage of labor. To save water and prevent secondary salinization caused by excessive irrigation, it is important to adopt low-cost and easy water-saving irrigation methods. Onishi et al. (2017) proposed simplified Surge Flow (SF) irrigation that does not require expensive equipment and merely divides the water supply into two phases at one-day intervals. This study conducted the suitable inflow rate and furrow length of simplified SF to improve water application efficiency in Uzbekistan. Five experimental plots (total area of 2,250 m2 , with 25 furrows) were set up and the inflow rates for two plots were 5 Ls-1 (F5.0) and that for the others were 1.7 Ls-1 (F1.7). The conventional irrigation method (F5.0C and F1.7C) and simplified SF (F5.0S and F1.7S) were applied to cases of furrow length of 100 m under each inflow rate. In addition, simplified SF was applied on a 50 m furrow at F1.7 (F1.7S-50). In the first irrigation using simplified SF, water was supplied from the start point of the furrow (0 m) for half of the furrow length (50 m, 25 m). In the second irrigation, water was supplied from the start point to the end of the furrow (100 m, 50 m). The application efficiency in F1.7S and F1.7S-50 was higher than that in F1.7C and F1.7C-50, and the highest was in F1.7S-50. The water supply duration was shorter in F5.0S, but the total volume of supplied water was larger than that of F1.7C. These results indicate that shortening furrow length might be an effective way to save water using simplified SF with a low inflow rate, and in contrast, that it is necessary to extend furrow length with a high inflow rate.
言語 en
内容記述
内容記述タイプ Other
内容記述 The above article was reprinted from “Paddy and Water Environment–Vol. 17, Issue 2, pp. 185-193 (2019)” by courtesy of the International Society of Paddy and Water Environment Engineering.
言語 en
出版者
出版者 Japan International Research Center for Agricultural Sciences
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_3248
資源タイプ book part
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
ID登録
ID登録 10.34556/0002000235
ID登録タイプ JaLC
関連情報
関連タイプ isPartOf
識別子タイプ DOI
関連識別子 https://doi.org/10.34556/0002000227
関連名称 Development of subsurface drainage and water-saving irrigation technology for mitigation of soil salinization in Uzbekistan
収録物識別子
収録物識別子タイプ PISSN
収録物識別子 1341-710X
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AA11159468
書誌情報 en : JIRCAS Working Report : Development of subsurface drainage and water-saving irrigation technology for mitigation of soil salinization in Uzbekistan

巻 88, p. 51-63, 発行日 2020-03-05
位置情報
位置情報(自由記述) Uzbekistan
位置情報(自由記述) ウズベキスタン
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