四號複合肥料（11-5.5-22）用量對台蕉二號生育、產量和後熟品質之影響

The Growth, Yield and Postharvest Qualities of Tai-Chiao No. 2 as Affected by the Rate of Compound Fertilizer No.4 (11-5.5-22)

在有機質含量約百分之二的坋質壤土中定植台蕉二號組織培養苗，從蕉株的營養生長而言，每株施用1.0公斤四號複合肥料的效果，和每株施用0.5公斤及2.0公斤相似，葉片之礦物組成亦均在正常範圍內。三個肥料處理之平均蕉果產量，以1.0公斤及2.0公斤為優，但兩者間差異不顯著。在後熟品質之櫥架壽命方面，施用1.0公斤之蕉果較0.5公斤及2.0公斤可分別延長0.6天與0.3天；果肉中總可溶性固形物含量則不受施肥量影響。從台蕉二號之生育，產量及品質衡量，每株以一公斤四號複合肥料，於抽穗前後分六次撒施完畢，為適當之肥料用量管理。

To investigate the optimal fertilizer application for Tai-Chiao No.2(Cavendish, AAA), a field trial was undertaken to evaluate the effects of various rates of complex fertilizer No. 4 (11-5.522) on the growth, yield, and postharvest qualities of Tai-Chiao No. 2. Tissue-cultured sapling were planted in a soil of silt loam with 2.1% of organic matter. Three rates, 0.5, 1.0, and 2.0 kg/plant/year, of fertilizer were applied. Results showed that treatments of 1.0 and 2.0 kg/plant/year would give rise to a better physiological development and bunch weight of Tai-Chiao No. 2, as compared to those from treatment of 0.5 kg/plant/year. Rate of 1.0 kg/plant/year also had the longest shelf life, the contents of total soluble solids in banana pulps were not significantly different in all fertilizer rates, however. From the economical and environmental points of view, one kilogram of compound fertilizer No.4 was adequate to the nutritional requirement of Tai-Chiao No. 2.