頁籤選單縮合
題 名 | 水稻清、濁水淹浸損失試驗研究總報告 |
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作 者 | 施嘉昌; | 書刊名 | 農業工程學報 |
卷 期 | 26:2 1980.06[民69.06] |
頁 次 | 頁1-18 |
關鍵詞 | 水稻; 淹浸; |
語 文 | 中文(Chinese) |
中文摘要 | 水稻淹水試驗共做了四年,地點在中壢農業工程研究中心。前二年清水,後二年濁水淹浸。處理項目分淹水時期,淹浸日數及淹水高度,分田區與盆栽二種。收穫後調查其生長差異,比較產量變化,繪出迴歸曲線,並以生統方法比較其顯著性,其產量變化呈二次拋物線形態。一期作實際最低產量發生在抽穗至乳熟期,亦即插秧後80至90天,第二期作發生在分蘗期至幼穗形成期,即插秧後20至30天。一、二期之平均減產率分別為17%及22%。三種淹水高度以100%株高損害最大,40%與70%產量相差不大。四種淹水日數間之產量差並不顯著。清水與濁水淹浸其產量無甚差異,但與對照組比較已達顯著程度。一期作淹水一次者約減產16%,二次者為19%;二期作淹水一次約減產19%而淹二次者則減產25%。 |
英文摘要 | This study is based on experiment data on the field and pot in Agricultural Engineering Research Center, Chung-Li, Taiwan for four years from Jan. 1976 to Dec. 1979. The treatments of this experiment are controlled by growing stage, height of water inundation and days of water ponding both in clean and muddy water. After harvest, surveying the growing differences and compare the variation of yield then use regression curve to compare the significance with statistical method. The variation of the yield is shown on parabola equation. The actual minimum yield is occurred at 80th to 90th day after transplanting in the period of heading to milk stage in first crop and at 20th to 30th day after transplanting in the period of tillering period to panicle initiation stage. The average rate of reduction yield in first and second crop are about 17% to 22% respectively. The most damage of rice at 100% water inundation of plant height, but no significance between water inundation at 40% and 70% of plant height respectively. It is not much different between clean and muddy water for inundation but it is significant to compare with check data. The rates of reduction yield are 16% and 19% to inundate once and twice respectively in first crop and 19%,25% respectively in second crop. |
本系統中英文摘要資訊取自各篇刊載內容。