有的米蘭基部葉片脫落,形成頭重腳輕,影響觀賞和生長。出現這種情況應立即摘心打頂,控製徒長,對剛形成的花序,應疏去1/2,使葉片養分供應充足,防止下部葉片繼續脫落;防冷凍寒風或穿堂風侵襲,不使溫度忽高忽低,以利恢複;檢查盆土是否呈堿性和有無蟲害,是否有澆水過多、施肥過濃或使用生肥現象,如有應立即對症防治。
米mi蘭lan過guo冬dong容rong易yi大da量liang脫tuo葉ye,對dui次ci年nian生sheng長chang和he開kai花hua極ji為wei不bu利li。首shou先xian應ying從cong跡ji象xiang來lai觀guan察cha,葉ye黑hei褐he萎wei蔫nian是shi受shou凍dong的de象xiang征zheng,應ying及ji時shi增zeng溫wen或huo移yi至zhi較jiao暖nuan處chu,使shi之zhi逐zhu步bu複fu蘇su。葉ye片pian枯ku黃huang脫tuo落luo是shi通tong風feng不bu良liang或huo土tu壤rang過guo幹gan造zao成cheng。綠lv葉ye脫tuo落luo則ze是shi土tu壤rang過guo濕shi造zao成cheng,要yao從cong預yu防fang著zhe手shou,當dang氣qi候hou轉zhuan涼liang時shi就jiu應ying逐zhu步bu停ting肥fei減jian水shui。入ru冬dong後hou,米mi蘭lan的de生sheng理li活huo動dong微wei弱ruo,這zhe時shi切qie忌ji低di溫wen高gao濕shi,或huo空kong氣qi幹gan燥zao。5℃以下的持續低溫、過guo道dao風feng以yi及ji長chang期qi光guang照zhao不bu足zu等deng各ge種zhong原yuan因yin也ye都dou會hui造zao成cheng落luo葉ye。應ying經jing常chang保bao持chi葉ye麵mian清qing潔jie,尤you其qi要yao防fang油you煙yan,以yi免mian妨fang害hai葉ye麵mian呼hu吸xi和he光guang合he作zuo用yong。秋qiu季ji推tui遲chi入ru室shi,以yi鍛duan煉lian其qi禦yu寒han能neng力li,春chun季ji清qing明ming後hou氣qi溫wen穩wen定ding時shi再zai出chu房fang,這zhe樣yang均jun有you利li於yu保bao護hu葉ye片pian。
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