島根大学農学部
ISSN:0370-940X
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島根大学農学部研究報告 4
1970-12-15 発行
農地の機械排水計画と実績に関する調査研究
Investigations on the Drainage Planning by Pump in Paddy Field
田中 礼次郎
末沢 慶康
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内容記述（抄録等）
To establish a better drainage planning by pump in paddy field, inquiries were made as to 60 districts all over the country. The results obtained are as follows :
(1) In all districts, the pump capacity is in the range of 1-5mm/hr.
(2) In all districts, the actual pump head is in the range of 0.5-0.6m.
(3) The basic rainfall used for drainage planning in most districts is a three-day one.
(4) Generally, the optimal capacity of drainage pump is yet unsolved.
(1) In all districts, the pump capacity is in the range of 1-5mm/hr.
(2) In all districts, the actual pump head is in the range of 0.5-0.6m.
(3) The basic rainfall used for drainage planning in most districts is a three-day one.
(4) Generally, the optimal capacity of drainage pump is yet unsolved.
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