不同栽植期對水稻田雜草相之影響

Abstract

全球暖化及氣候快速變遷現象已對農作生產與農業環境帶來全面性的衝擊，農田雜草族群種類與數量也發生明顯的變化。本研究於2009年在行政院農委會農業試驗所農場（臺中市霧峰區）兩期稻作期間，以春分／大暑為中心之溫度梯度進行10次水稻栽植期，探討溫度及光照對水稻田雜草相之影響。 Global warming and climate change has become a major issue on crop production and agricultural environment, including changes in population, density and distribution of weeds. A field study was conducted in 2009 at the experimental farm of Taiwan Agricultural Research Institute, Wufeng, Taichung, Taiwan to determine effects of planting date, in terms of temperature and solar radiation, on weed population and density in the spring crop (first crop of 2009) and the fall crop (second crop of 2009) of paddy rice (Oriza sativa).