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北方春季綠地苗木有哪些管理要點?
一yi年nian之zhi際ji在zai於yu春chun,春chun天tian氣qi溫wen回hui升sheng,萬wan物wu複fu蘇su,春chun季ji綠lv地di苗miao木mu管guan理li的de好hao壞huai,直zhi接jie影ying響xiang苗miao木mu的de健jian康kang生sheng長chang和he當dang年nian綠lv地di的de景jing觀guan效xiao果guo。去qu冬dong今jin春chun,北bei方fang幹gan旱han嚴yan重zhong,各ge類lei越yue冬dong害hai蟲chong、蟲chong卵luan和he病bing菌jun大da量liang存cun留liu,加jia上shang氣qi溫wen偏pian低di,部bu分fen苗miao木mu發fa生sheng凍dong害hai,給gei綠lv地di苗miao木mu管guan理li帶dai來lai了le一yi定ding難nan度du。園yuan林lin部bu門men應ying抓zhua住zhu當dang前qian苗miao木mu返fan青qing有you利li時shi機ji,認ren真zhen做zuo好hao春chun季ji綠lv地di養yang護hu管guan理li。
補植和更新品種:苗(miao)木(mu)補(bu)植(zhi)和(he)更(geng)新(xin)品(pin)種(zhong)是(shi)春(chun)季(ji)綠(lv)地(di)管(guan)理(li)的(de)重(zhong)要(yao)內(nei)容(rong)。一(yi)是(shi)要(yao)做(zuo)好(hao)綠(lv)地(di)苗(miao)木(mu)的(de)補(bu)植(zhi)工(gong)作(zuo),對(dui)管(guan)轄(xia)綠(lv)地(di)內(nei)越(yue)冬(dong)期(qi)間(jian)死(si)亡(wang)的(de)苗(miao)木(mu)進(jin)行(xing)全(quan)麵(mian)調(tiao)查(zha)統(tong)計(ji),抓(zhua)住(zhu)當(dang)前(qian)有(you)利(li)時(shi)機(ji)進(jin)行(xing)補(bu)植(zhi)、更geng換huan,並bing及ji時shi澆jiao透tou水shui,確que保bao新xin栽zai苗miao木mu的de成cheng活huo率lv。二er是shi要yao做zuo好hao良liang種zhong苗miao木mu的de更geng新xin,綠lv化hua良liang種zhong苗miao木mu是shi提ti高gao綠lv地di景jing觀guan的de前qian提ti,隨sui著zhe社she會hui的de快kuai速su發fa展zhan,原yuan有you的de一yi些xie生sheng長chang不bu良liang的de樹shu種zhong已yi不bu能neng適shi應ying綠lv地di需xu要yao,必bi須xu及ji時shi更geng換huan良liang種zhong。春chun天tian發fa芽ya前qian,采cai用yong多duo頭tou高gao接jie可ke當dang年nian圓yuan頭tou,第di二er年nian開kai花hua結jie果guo,具ju體ti措cuo施shi可ke采cai用yong劈pi接jie、切接、插皮接等方法。
土水肥管理:土tu肥fei水shui管guan理li是shi苗miao木mu管guan理li的de一yi個ge重zhong要yao組zu成cheng部bu分fen。由you於yu春chun季ji幹gan旱han,氣qi溫wen上shang升sheng,水shui分fen蒸zheng發fa量liang大da,一yi定ding要yao做zuo好hao土tu壤rang的de管guan理li,一yi般ban要yao采cai用yong中zhong耕geng等deng措cuo施shi鬆song動dong苗miao木mu表biao層ceng土tu,增zeng加jia通tong透tou性xing,防fang止zhi土tu壤rang的de次ci生sheng鹽yan漬zi化hua。
追肥澆水能夠滿足苗木萌芽、展葉、開kai花hua等deng生sheng理li活huo動dong的de需xu要yao。各ge綠lv化hua區qu域yu都dou要yao澆jiao一yi次ci返fan青qing水shui,根gen據ju植zhi物wu生sheng長chang特te點dian,結jie合he澆jiao水shui適shi量liang施shi肥fei。土tu壤rang解jie凍dong後hou,應ying追zhui施shi速su效xiao氮dan磷lin鉀jia肥fei,並bing增zeng施shi有you機ji肥fei。施shi肥fei時shi不bu能neng一yi混hun而er施shi,應ying根gen據ju苗miao木mu長chang勢shi的de好hao壞huai和he樹shu齡ling大da小xiao區qu別bie對dui待dai。長chang勢shi好hao的de多duo施shi,樹shu齡ling大da的de多duo施shi,反fan之zhi少shao施shi,以yi免mian適shi得de其qi反fan。施shi肥fei要yao在zai距ju樹shu幹gan20厘米至25limizhijianchujinxing,zhuyijunyunshifei,yifangfeiliaodelangfeihechanshengshaogenxianxiang。shifeihoujishiguanshui,tigaofeiliaoliyonglv。huaguanmuchunjimengdongqi,yaojinxinggenwaizhuifei。yibanzhiganpenyiliangci0.5%尿素混0.3%pengsha,keshihuaqiyizhi,huaduofeida,tigaomiaomuguanshangxing。weizuohaojiaoguanfanqingshuidezhunbeigongzuo,yingduishuiguanxianheshuifamenjinxingweixiubaoyang,xiufudongjidongliedehuachibi,pingzhenglvdi,fangzhijiaoguanfanqingshuiguochengzhongchuxian“跑、冒、滴、漏”現象,確保返青水的順利澆灌。
病蟲害防治:建立病蟲害預測預報製度,安排專人負責觀察、監測工作。結合各種病蟲危害的發生規律和生長習性,科學製訂防治方案,做到早發現、早(zao)治(zhi)理(li),保(bao)證(zheng)綠(lv)地(di)苗(miao)木(mu)的(de)健(jian)康(kang)成(cheng)長(chang)。春(chun)季(ji)要(yao)對(dui)綠(lv)地(di)植(zhi)物(wu)進(jin)行(xing)全(quan)麵(mian)的(de)病(bing)蟲(chong)害(hai)檢(jian)查(zha),清(qing)除(chu)綠(lv)地(di)內(nei)的(de)立(li)枯(ku)木(mu)和(he)危(wei)害(hai)嚴(yan)重(zhong)的(de)苗(miao)木(mu),挖(wa)除(chu)越(yue)冬(dong)蟲(chong)蛹(yong),發(fa)芽(ya)前(qian)刮(gua)除(chu)老(lao)粗(cu)皮(pi)。樹(shu)體(ti)老(lao)粗(cu)皮(pi)是(shi)許(xu)多(duo)病(bing)菌(jun)、蟲(chong)卵(luan)的(de)越(yue)冬(dong)寄(ji)生(sheng)地(di),要(yao)集(ji)中(zhong)燒(shao)毀(hui),可(ke)消(xiao)滅(mie)大(da)量(liang)越(yue)冬(dong)害(hai)蟲(chong)和(he)越(yue)冬(dong)病(bing)菌(jun),減(jian)少(shao)病(bing)蟲(chong)危(wei)害(hai)基(ji)數(shu),可(ke)起(qi)到(dao)病(bing)蟲(chong)防(fang)治(zhi)事(shi)半(ban)功(gong)倍(bei)的(de)效(xiao)果(guo)。由(you)於(yu)氣(qi)溫(wen)上(shang)升(sheng),要(yao)及(ji)時(shi)解(jie)除(chu)石(shi)榴(liu)、無花果等苗木上的防寒草把,並清除草把使之遠離綠地。在苗木發芽前刮一遍老樹皮,之後綠地苗木普噴一遍3-5波美度石硫合劑,防治病蟲害效果良好。
綠化修剪:根據苗木的不同品種、不同類型、不同地段、不同生態特性進行修剪,確保樹木、mowenzaoxingzaishunlishengchangdeqiantixiajianchuyoumeizaoxing。dongjimeiyouxiujianwandelvdimiaomukezaichunjijinxinghuaqianfujian,jinxingshutijiegoutiaozheng。shouxianyaojianchuqunianyouyudonghaizaochengdekuzhiheganye,zaijiushiduibufenguomide、影響過大的主枝、競爭枝、背上徒長枝進行抽除,打開光路,有利於提高內膛枝質量。對密擠枝、徒長枝、waiweiguodadezhiduocaiqushujian,youliyushushihuanhe,tongfengtouguang。duiyuxinjianlvdidemiaomutebieshihuaguanmu,zhitiaojiaodubukaizhang,qunianqiujimeiyoulazhikaijiaode,yuchunjilazhikaijiao,youshulazhikaijiaoshiyoushuzaoqikaihuajieguo、提高觀賞性的關鍵措施。
修剪後綠地苗木要達到:樹體結構合理、枝條疏密合理,為苗木日後生長奠定良好基礎。另外還要做好綠地衛生保潔,加強日常園林管理工作人員的巡查力度,及時清除塑料袋、紙屑、石塊等垃圾雜物,確保綠地全日清潔。
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