不同氮、磷、鉀比例之肥料對文心蘭幼苗生長之影響

Effect of Different Nitrogen, Phosphorus, and Potassium Ratio of Fertilizers on the Seedling Growth of Oncidium

陳姿翰(Tzu-Han Chen) ； 易美秀(Meei-Shiou Yih) ； 魏芳明(Fang-Ming Wei)

《臺中區農業改良場研究彙報》 118期 (2013/03) Pp. 11-22

摘要

植株的生長發育需要各種元素的合理分配，缺乏或過多都會對植株造成不利的影響。小苗初期的營養狀況將會影響植株的後續生長，甚至是開花。本研究針對Onc. Gower Ramsey ‘Honey Angel’及Onc. Tdares Golden Mine ‘Taichung No. 1 Gold Coins’兩品種，分別比較不同氮、磷、鉀比例之肥料對文心蘭苗生長之影響，以期找出最適合剛出瓶幼苗之肥料比例。試驗結果顯示氮、磷、鉀之總濃度超過500 ppm時會對植株造成傷害，反而不利於生長。生長量會隨肥料中含氮量之增加而上升，顯示對文心蘭幼苗來說，氮的影響仍較磷、鉀為重。而不同肥料處理間，仍以慣行管理或減氮處理之植株生長較佳。

關鍵字

文心蘭 ； 肥料 ； 大量元素

並列摘要

Reasonable allotment of elements are necessary for growth and development in plants. Shortage or over dosage of elements uptaking will affect plant growth adversely. The state of nutrient in seedlings will affect following growth, even flower. The objective of this study was to find out the optimum ratio of fertilizer for seedlings of Onc. Gower Ramsey 'Honey Angel' and Onc in different growth stages. Tdares Golden Mine 'Taichung No. 1 Gold Coins' after fertilization. It shows harmful to plants when total concentration of nitrogen, phosphorus, and potassium was over 500 ppm. Growth performance will rise by increasing of content of nitrogen, it indicates the effort of nitrogen was more serious than phosphorus, and potassium treatment. Conventional management and less nitrogen processing are still more better for the growth of plants between different treatments.

並列關鍵字

Oncidium ； fertilizer ； macroelement