我國東北、huabeihexibeidiqu,dongjijueduiqiwenjiaodiqiechixushijianchang,jiatingpenzaiguihuachanghuifashengdonghai。bizhegenjuduonianjingyan,jiuwoguobeifangdongjipenzaiguihuadeyanghutanyixiekanfa。
“秋不入”即入室宜晚不宜早。一般情況下,秋冬之交的降溫幅度不會很大,隻要氣溫不低於-1℃,盆栽桂花露天放置4至5天不會出現問題。經過低溫鍛煉,桂花耐寒能力會明顯提高。
“冬不凍”指盡量使桂花免受凍害。北方冬季養護可采取以下辦法:
一是把盆栽桂花直接放在溫室內,室溫不高於3℃,促cu其qi進jin入ru休xiu眠mian狀zhuang態tai。擺bai放fang時shi應ying讓rang桂gui花hua最zui大da限xian度du地di接jie受shou陽yang光guang照zhao射she。如ru果guo不bu能neng直zhi射she,也ye要yao放fang在zai光guang線xian較jiao強qiang的de地di方fang,使shi之zhi接jie受shou散san射she光guang。另ling外wai,應ying把ba桂gui花hua放fang在zai空kong氣qi相xiang對dui穩wen定ding的de地di方fang,不bu要yao放fang在zai空kong氣qi流liu通tong處chu,避bi免mian其qi因yin冷leng空kong氣qi侵qin襲xi而er受shou到dao傷shang害hai。
二是套袋。套袋不能過早,最低氣溫達到-5℃時開始套袋。用厚的透明塑料薄膜,根據桂花的冠幅、高度製成長方形袋,把花與盆都裝進去,袋口朝上。盆口紮固定架(用竹、木條、樹枝等)shidaibuyaojintieyepian,yimianyepianshoudongshang。wufengtiannuanshi,kebadaikoujiekairangguihuajieshouyangguang,tongfengtouqi。kaichunhou,suizheqiwendehuisheng,kezhujianbadaikoujiekai,shiguihuashiyingwaimiandehuanjing。dangqiwenwendingzai5℃左右時,可去掉套袋。
“春晚出”即桂花出室宜晚不宜早。如果直接移出室外,極易導致盆栽桂花萎蔫。進入4月(yue),天(tian)氣(qi)明(ming)顯(xian)轉(zhuan)暖(nuan),室(shi)內(nei)桂(gui)花(hua)要(yao)陸(lu)續(xu)搬(ban)出(chu)室(shi)外(wai)。為(wei)使(shi)其(qi)能(neng)適(shi)應(ying)室(shi)外(wai)環(huan)境(jing),出(chu)室(shi)前(qian)每(mei)天(tian)中(zhong)午(wu)要(yao)打(da)開(kai)門(men)窗(chuang),使(shi)空(kong)氣(qi)流(liu)通(tong),讓(rang)桂(gui)花(hua)多(duo)曬(shai)太(tai)陽(yang)。一(yi)般(ban)在(zai)清(qing)明(ming)以(yi)後(hou)出(chu)室(shi)。初(chu)期(qi),最(zui)好(hao)在(zai)白(bai)天(tian)移(yi)出(chu)室(shi)外(wai),夜(ye)間(jian)搬(ban)回(hui)室(shi)內(nei)。往(wang)返(fan)幾(ji)天(tian),待(dai)桂(gui)花(hua)逐(zhu)漸(jian)適(shi)應(ying)外(wai)界(jie)環(huan)境(jing)後(hou),再(zai)置(zhi)於(yu)室(shi)外(wai)。
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