在冬季氣溫低於5℃的情況下,花葉萬年青極易遭受凍害,如不及時管理則會造成死亡。那麼,受到凍害後如何采取相應措施呢?
微度凍害:yemianshiquyingyoudeguangze,yepianxiangshishuiyangxiachui。cishiyingjianghuayewannianqingbandaowendujiaogaodedifang,shizhizhujianhuifuzhengchang。zhuyiwendubukezaishouhaihouzhousheng,yimianyepianweinian。
輕度凍害:葉片除下垂外,葉片會發生開水燙傷樣寒害斑塊。處理時將葉片上的寒斑剪去,將花卉搬到溫暖的地方即可。
中度凍害:yepiandabufenchuxianhanban,yebingchuxianshuizizhuangbankuaibingshilv。cishiyinglianyedaibingjianqu,bingyongcaomuhuihuomeihuitumoshangkou,ranhoufangruwennuandedifang,shidangkongzhijiaoshui,shizhimanmanhuifuzhengchang。
重度凍害:嫩nen枝zhi新xin葉ye失shi綠lv,呈cheng現xian水shui漬zi狀zhuang斑ban塊kuai,地di下xia根gen係xi受shou寒han而er爛lan根gen。補bu救jiu方fang法fa為wei,及ji時shi將jiang植zhi株zhu挖wa起qi,切qie除chu地di下xia部bu分fen,並bing剪jian去qu受shou害hai的de枝zhi莖jing,用yong草cao木mu灰hui塗tu抹mo傷shang口kou後hou,貯zhu藏zang於yu濕shi潤run的de素su沙sha中zhong,開kai春chun後hou進jin行xing扡qian插cha。如ru果guo發fa生sheng嚴yan重zhong的de寒han害hai,整zheng個ge植zhi株zhu都dou出chu現xian病bing斑ban,則ze挽wan救jiu希xi望wang甚shen微wei,應ying考kao慮lv更geng新xin花hua卉hui。
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