盆菊栽培介質CEC與物理性適宜值評估

Assessment of Optimum CEC Value and Physical Properties of Growth Media for Potted Chrysanthemum

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

《桃園區農業改良場研究彙報》 45期 (2001/06) Pp. 29-47

https://doi.org/10.29567/ZHWHGX.200106.0005

摘要

本研究之目的，在評估栽培介質之CEC及物理性質對盆菊養分吸收及生長的影響，以建立盆菊專用栽培介質CEC及物理性質之基準，提供花農調配栽培介質之依據，增進盆菊品質及商品價值。栽培介質材料為堆肥（牛糞：粉碎穀殼：金針菇木屑=1：2：2（v/v/v）混合堆積腐熟）、河砂及矽石。栽培介質pH及EC值（1：5）範圍在5.0－6.2及0.75－1.30 dS/m之間。試驗結果顯示，栽培介質CEC、總孔隙度、容水量及保水力等理化性質對盆菊性狀均有不同程度的顯著影響。依據其影響程度界定盆菊栽培介質CEC、總孔隙度、容水量及保水力之最適範圍，分別為15－35 cmole/kg、55%以上、80%以上及40－65%。

關鍵字

盆菊 ； 栽培介質 ； 陽離子交換容量 ； 物理性質

並列摘要

This study was established to determine the criteria of CEC and physical properties of growth media to provide a proper formulation for potted chrysanthemum production. The media were made by mixing compost (cow dung, crushed rice hull and mushroom residue mixture with the ratio of 1:2:2 v/v/v), sand and expanded clay. The pH and EC value were between 5.0-6.2 and 0.785-1.30 dS/m, respectively. Assessments of optimum CEC and physical properties of growth media for potted chrysanthemum showed that the plant characters were affected to a certain extent by CEC, total porosity, water capacity and water-holding capacity of growth media. Based on crop response, the optimum conditions for the growth media were proposed for CEC 15-35 me/100g, total porosity above 55 %, water capacity above 80 % and water-holding capacity at 40-65 %.

並列關鍵字

potted chrysanthemum ； growth media ； CEC ； physical properties