聖誕紅栽培介質電導度適宜性研究

Study on Optimum EC Value of Growth Media for Potted Poinsettia

羅秋雄(Chiu-Shyoung Lo) ； 王斐能(Fei-Neng Wang)

《桃園區農業改良場研究彙報》 56期 (2004/12) Pp. 40-46

https://doi.org/10.29567/ZHWHGX.200412.0004

摘要

本研究自2003年至2004年於桃園縣新屋鄉進行，主要目的在評估聖誕紅栽培介質適宜的電導度（EC），供為調配介質之依據。以堆肥（牛糞：粉碎榖殼：金針菇木屑 = 1 : 2 : 2（v/v/v）混合堆積腐熟）：河砂：珍珠石 = 2 : 1 : 1（v/v/v）混拌為栽培介質。栽培介質再以氯化鉀 : 尿素 = 1 : 2.5的混合肥料調整EC值，經調整後的實際EC值分別為0.7、1.17、1.6、2.07、2.19、2.79 及3.26 mS/cm。試驗結果顯示；栽培介質EC值高於2.07 mS/cm處理，所有插穗於插植一週後全部死亡，栽培介質EC值對聖誕紅株高、花朵數、花乾重及植體乾重等性狀之影響，經迴歸分析結果均達顯著或極顯著差異。再以聖誕紅綜合性狀平均相對值評估適宜的EC值範圍，應在2.0 mS/cm以下。

關鍵字

聖誕紅 ； 栽培介質 ； 電導度

並列摘要

The objective of this study was to determine the optimum EC value of growth medium for potted poinsettia. Experiment was conducted at Hsinwu Taoyuan from 2003 to 2004. The growth medium was made by mixing rice bran, rice hull and mushroom waste at the rate of 1:2:2 (v/v), and then mixed with sand and perlite at 2:1:1 (v/v/v) proportions. The fertilizers of KCl and Urea (1:2.5 w/w) were added to adjust the EC value to 0.7, 1.17, 1.6, 2.07, 2.19, 2.79 and 3.26 mS/cm. Results of the experiment showed, no cutting was found survivals in the treatment of the EC value higher than 2.07 mS/cm. The EC value of the media significantly affected plant height, number of flower, dry flower weight and dry plant weight of potted poinsettia. The calculated average relatively value of characters (ARVC) indicated that the optimum EC value for potted poinsettia should be below 2.0 mS/cm.

並列關鍵字

potted poinsettia ； growth media ； EC value of medium