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苗木遭遇持续高温后的养护注意事项

   2015-01-09 559
核心提示:持续的高温天气会使苗木遭受旱害和灼伤两种危害,当高温过后,这些苗木大多是处于“死里逃生”的状态。此时的园林养护工作与平时相比,需要注意以下一些事项。

chixudegaowentianqihuishimiaomuzaoshouhanhaihezhuoshangliangzhongweihai,danggaowenguohou,zheixiemiaomudaduoshichuyu“silitaosheng”dezhuangtai。cishideyuanlinyanghugongzuoyupingshixiangbi,xuyaozhuyiyixiayixieshixiang:

 

浇水注意事项:

ganhanguohou,diyiyaowushijiaoshui,danzenmejiaoshuiquefeichangyoujiangjiu。ganhandaozhiturangyanzhongqueshui,shutishuifenyeyinzhengtengerbaoyouliangbuzu,cishijishumujiaoshui,yaobenzhexunxujianjin、xianshaohouduodeyuanze,xianjiaoxiaoshui,ranhouzaijiaotoushui,zhujianrangturanghuifuzhengchangjiegou,youtiaojiandekeyishiyongweipenhuodiguan,zheiyangjiaoshuibujinjiaodetou,erqieliyuzhiwuxishou,duizhiwushengzhangfeichangyouli。cihoudeshijianli,yaozhuyibaochiturangshangqing,kecaiquzhonggengbaoshang,xuepanfugaidengcuoshi,jianshaoshuifenzhengfa。weileshishuifengenghao、gengkuaidishentoudaoshencengturang,zaijiaoshuiqian,haiyingduishuxuejinxingsongtu,weiletigaogenxiduishuifendexishou,yekeduijiaoxiaodeshuxuejinxingkuoxuechuli,zengjiashoushuiliang。duiyuqiujichixuganhande,haiyingjixujiaoshui,danjiaoshuiliangyingjianshoujigeyuanze,yishiyibaochiturangdabanshangzhuangtaiweiyi;ershiyishumushuyebuweinian,shuyezhengchang,xinshaoyansenenlv,bunianshaoweiyi;sanshiyishumubuqiufatuzhangweiyi。duiyuhanqinghuanjie,youzhengchangjiangshuide,kebuzaijiaoshui,erqieyaofangzhiqiulao,dayuguohou,duiyuyixiebunaishuiyandeshumuyingjishijiangshuxuedejishuipaichu,fangzhishuidalangen。

 

施肥注意事项:

夏季干旱,会导致树木生长受到影响,秋后气温凉爽,树木又进入旺盛生长期,故此对于遭受旱害的树木,应适当施肥,以促其生长,利于安全越冬。秋季给树木施肥,要把握好一个原则,即使其生长而不徒长。具体方法是,在施肥时可施用一些氮肥和钾肥,二者的比例为1:3,这样施肥,既可使树木正常生长,缓解枝条营养生长不足的问题,又不至于因施用过量氮肥而导致树木枝条徒长,从而影响安全越冬。施肥量宜少不宜多,肥料可适当深施,施肥后还应及时浇水。在秋末,应结合浇防冻水,施用一次农家肥,这次肥可选择多种肥混施的方法,如对受害较重的碧桃、榆叶梅等花灌木,可先在离树干较近的地方施用一些芝麻酱渣,而且应当深施,然后再施用一些经腐熟发酵的牛马粪,牛马粪可直接撒于树穴,浅施为宜。这样施肥,不仅可以有效保护树木不遭受冻害,而且利于植株来年返青开花和春季生长。

 

修剪注意事项

jingguoyanredexiaji,jiazhizaoshougaowenganhanyingxiang。yixieshumuhuichuxiangansizhitiaoheshushao,zaiyanghuzhong,yingjishijianggansidezhitiaojinxingshuchu,duigansidezhishaojinxingduanjie。duiyushuchudezhitiao,buyingliuzhuang,yingconggenbujianchu,duiyudadeshangkou,yingtumoyouqijinxingchuli。

 

病虫害防治

shumuzaoshouhanhaihou,shengzhangshoudaoyingxiang,diyubingchonghaidenengliyousuoxiajiang,yizaoshoubingchongweihai。guci,yingjiaqiangbingchonghaidefangzhi。zongtieryan,ganhantianqi,chuanranxingbinghaixiangduijiaoshao,eryachongdengcixileihaichongfashengjiaoweiyanzhong。duiyubingchonghaidefangzhi,diyiyaoduizhengzhiliao,yinqiujiqiwenshiyi,huizishengyixiebinghaihuohaichong,gucizaiqiujijishijiangyijingfashengdebingchonghaijinxingfangzhi,erqieyaozhichedi;dieryaofanghuanyuweiran,duiyixieqiujiyifashengdebingchonghai,yaozaijiaqiangshumushuifeiguanlidetongshi,jijidicaiqucuoshi。yufangbingchonghaidefasheng,kecaiqupensabaohuxingyaoji。qiumoshi,yaojishijianglvdineidiaoluodekuzhiluoye、zacaoqingchuganjing,jizhongjinxingshaohuihuoshenmaichuli。

 
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