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肥料用量對高架草莓生育及產量之影響
Effect of Fertilizer on Growth and Yield of Strawberry under High-rise Bed Culture System
摘要
本研究的目的在探討基肥用量對草莓高架植床式栽培生育及產量之影響，以建立適宜且合理的施肥技術。肥料試驗三要素（N-P2O5-K2O）用量區分為0-0-0、1.3-1.1-1.3、2.6-2.2-2.6、5.2-4.4-5.2及10.4-8.8-10.4 g/plant等5變級。試驗結果顯示，草莓生育中期的葉柄、葉長、葉幅、全鮮重及全乾重等生育性狀，以2.6-2.2-2.6 g/plant處理者最佳，分別為13.3 cm、9.7 cm、10.3 cm、73.2 g/plant及14.6 g/plant。試驗結束，介質的飽和抽出液酸鹼值、電導度值、磷、鉀、鈣、鎂及硝酸態氮等養分含量分別為5.7、2.62 dS/m、230 mg/l、97 mg/l、328 mg/l、239 mg/l及154 mgl。公頃產量以2.6-2.2-2.6 g/plant處理者的14.6公噸為最高，與其他處理比較有差異顯著。綜合試驗結果，在植床式栽培試驗中合理施肥量每棵草莓三要素量以2.6-2.2-2.6 g較為適宜。
並列摘要
The objective of this research was to study the effect of basal fertilizer application under the high-rise bed culture system of strawberry, to establish the suitable fertilization technique. The fertilizer application rates were 0-0-0, 1.3-1.1-1.3, 2.6-2.2-2.6, 5.2-4.4-5.2 and 10.4-8.8-10.4 g/plant, respectively. The characteristics of strawberry was investigated after 60 days of planting. The result indicated that the application rate of 2.6-2.2-2.6 g/plant was superior, which gave rise to the highest leaf length (9.7 cm), leaf width (10.3 cm), fresh weight (73.2 g/plant), and dry weight (14.6 g/plant). The pH value, EC value, P, K, Ca, Mg and N03-N of medium after harvest was 5.7, 2.62 dS/m, 230 mg/l, 97 mg/l, 328 mg/I, 239 mg/l and 154 mg/l, respectively. The results showed that 2.6-2.2-2.6 g/plant fertilizer treatment gave rise to the highest yield. The best fertilizer application rate for high-rise bed culture system of strawberry was determined to be 2.6-2.2-2.6 g/plant.