轉作田玉米灌溉對施肥效果之影響及後期施肥適期試驗

Effects of Irrigation on the Fertilization and Usage of Fertilizer in Later Stage of Corn Growth in Paddy

周泰鈞(Tai-Chun Chou) ； 張茂盛(Mou-Shen Chang)

《臺東區農業改良場研究彙報》 3輯 (1989/06) Pp. 55-68

https://doi.org/10.6959/RBTDAIS.198906.0055

摘要

為探討轉作水田灌溉對玉米施肥效果之影響及後期施肥適期，於74年春作及75年春、秋作在本場試驗地，片岩沖積土、坋質粘壤土，辦理本試驗。其結果顯示無論株高、穗長、穗重及公頃產量等，主處理皆以灌溉施肥優於不灌溉施肥者，公頃產量增產10％～27％。副處理後期施肥適期各處理間差異不顯著，其中產量以雄花抽出前之處理較佳，比雄花開花後再施穗肥之處理增產約3～7％。灌溉與後期施肥適期處理間之交感不顯著。

關鍵字

玉米 ； 灌溉 ； 穗肥 ； 肥效

並列摘要

The experiment is conducted to study the effects of irrigation on the fertilization and the application of fertilizer in later stage on corn Yield. The experiment was carried out at silty clay, loam soiI in Taitung D.A.I.S. from 1985 to 1986. The field layout was S.E.D.A. with three main plots of irrigation: before fertilization, after fertilization or fertilizing without irrigation. Three sub plots of fertilization were as follows: before tasselling, after 20% tasselling or at 80% tasseling.Our results showed that irrigation either before or after fertilization increased corn, yield 10 to 27% when compared to non-irrigated control. Among three sub plots, treatments of fertilizer applied before tasselling produced best yield. A 3-7% increase in yield was found when comparison fertilizing after tesselling.The effects of treatments on plant height, stalk, diameter and ear weight showed similar results as yield.

並列關鍵字

Corn ； Irrigation ； Ear fertilizer ； Efficiency of fertilizer