台中秈17 號低投入型耕作制度應用於飼料稻米生產之評估
Other Title
Studies on the Low-input Farming System of Yield of Forage Rice of Taichung Sen 17
Journal
因應氣候變遷及糧食安全之農業創新研究—103年度成果發表暨研討會論文集
Part Of
農業試驗所特刊第186號
Pages
108-117
ISBN
978-986-04-6408-5
Date Issued
2015-11
Date
2015-11
Author(s)
Abstract
溫度增高與日夜溫差減小是氣候改變趨勢，此變化對未來稻米的產業影響甚鉅。然而目前缺少建立當處於此種情境時的水稻生育階段模式，及為維持高產目標的適當的栽培診斷指標與技術措施。評估不同氣候條件與土壤特性，篩選適合品種，開發高單位面積產量之土壤管理與施肥技術，含土壤氮源診斷與營養管理等技術。包括台中秈17 號的地區性推廣5 個稉秈水稻品種及5 個不同氮肥等級 (0、90、150、210、270 kg/ha)，兩重覆共50 個處理區試驗。依不同氣候區、區域性灌溉水質及品種於全省6個主要水稻生產區，進行101-103 年6 期次水稻新品種氮肥利用效率之田間試驗。結果顯示，從南至北水稻6 個試驗區對於氮肥的增施其增產效果並不明顯，施氮量對稻穀中粗蛋白質的累積與產量的趨勢相似；氮肥偏生產力 (PFP) 隨氮肥的增加而降低，施用90 kg N/ha 明顯高於施高氮區 (210、270 kg N/ha) 。當因氣候變遷面臨氣溫增加，溫差縮小時，對於台中秈17 號品種的栽培可累積於稻殼的氮量高於糙米。資料也顯示，藉由土壤營養管理與改良，削減不同土壤中水稻對氮有效吸收的逆境，以提高地區性土壤氮供應力，配合氣候條件較增施氮肥更能實質增加台中秈17 號水稻品種的稻穀產量，以符合我國穀粒利用型的飼料稻發展策略。
It's self-produced a serious shortage of feed supply source, a large number of imports each year, cultivation of forage rice technology developed to address the shortage of self-produced feed and stable feed production. From the fallow fields (including: low-yielding rice fields, marginal land) of the soil characteristics to start with selection of suitable varieties, development of high yield per unit area of soil management and fertilization techniques, including diagnosis and soil nutrient management technologies. The variety and nitrogen (N) management play a vital role in rice production and nitrogen use efficiency (NUE). In order to optimize N application patterns for variety of Taichung sen 17 of rice, we have conducted fertilization experiments with five N applied rates, include 0, 90, 150, 210 and 270 kgNha-1 in 6 locations in Taiwan. The establishment of the forage rice production adjustment mechanism, enhance the active use of paddy fields. The results reveal effect of sit and applied rate of N on grain yield for variety of Taichung sen 17 were significant (p<0.05). The N efficiency was highest under applied rate of 90 kgNha-1 among various applied rates. The higher mean temperature has significant effect on the transfer and accumulation of biomass and nitrogen to panicle of most experiments. Nevertheless, the higher mean temperature decrease the transfer of those to the grain.
Event(s)
因應氣候變遷及糧食安全之農業創新研究 - 103年度成果發表暨研討會
Agricultural Innovation Studies for Coping with Climate Change and Food Security
Subjects
飼料稻米
土壤管理
氮利用效率
Forage Rice
Soil Management
Nitrogen Use Efficiency
Publisher
農業試驗所
Type
conference paper
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