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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