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島根大学農学部研究報告 Volume 4
published_at 1970-12-15
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
Tanaka Reijiro
Suezawa Yosiyasu
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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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