一、適量施肥。追肥通常有兩種方式。①地下追肥。一般追施尿素等速效肥料即可。在行間開溝,將肥料施於溝內,然後蓋土。也可將肥料稀釋後,均勻噴施於苗床(壟、畦)上,然後用清水衝洗植株。一般情況下,畝施尿素15~20千克,15天後再施一次,施2~3次即可。②根外追肥。秋季結合噴藥噴0.2%尿素加0.3%磷酸二氫鉀液。闊葉樹種在立秋後最好不再施肥,以防苗徒長。
二、及時澆水。苗木速生期澆水要采取多量少次的方法。每次灌溉要灌透、灌勻,防止衝刷幼苗,傷害苗莖、苗根。每次追肥均應隨即澆水,若天降雨,墒情較好,則不要澆水。在苗木生長後期,應適當控製澆水(除特別幹旱外,一般不需灌溉)。若苗木冬前不出圃,一定要澆好越冬水。
三、排pai水shui防fang澇lao。秋qiu季ji雨yu水shui較jiao多duo,一yi旦dan苗miao木mu受shou澇lao,對dui苗miao木mu適shi時shi出chu圃pu影ying響xiang很hen大da。因yin此ci,對dui苗miao圃pu排pai水shui設she施shi要yao及ji時shi進jin行xing檢jian查zha,要yao挖wa好hao排pai水shui溝gou,及ji早zao發fa現xian並bing排pai除chu圃pu地di積ji水shui。對dui雨yu水shui侵qin蝕shi所suo破po壞huai的de地di段duan、地塊要求及時修補,確保圃地土地平整、排水暢通。
四、中zhong耕geng除chu草cao。苗miao圃pu畦qi中zhong多duo半ban蓋gai有you地di膜mo,一yi般ban不bu用yong中zhong耕geng,拔ba除chu雜za草cao即ji可ke。拔ba除chu幅fu內nei雜za草cao時shi,操cao作zuo要yao細xi致zhi,不bu要yao傷shang苗miao。若ruo采cai用yong除chu草cao劑ji滅mie草cao要yao先xian試shi驗yan,以yi免mian發fa生sheng藥yao害hai。畦qi埂geng及ji兩liang側ce,要yao在zai每mei次ci降jiang雨yu或huo澆jiao水shui後hou劃hua鋤chu保bao墒shang一yi次ci,同tong時shi除chu去qu雜za草cao。對dui不bu覆fu蓋gai地di膜mo的de,中zhong耕geng可ke以yi疏shu鬆song土tu壤rang,減jian少shao蒸zheng發fa,起qi到dao抗kang旱han保bao墒shang作zuo用yong。通tong常chang每mei次ci降jiang雨yu或huo澆jiao水shui後hou要yao及ji時shi中zhong耕geng除chu草cao。中zhong耕geng要yao逐zhu次ci加jia深shen,但dan不bu要yao傷shang苗miao、不要壓苗。對闊葉樹的扡插苗,要控製其少生側根,對其及時摘芽、除蘖。
五、fangzhibinghai。gaowengaoshitianqi,rongyizaochengbingchonghaizisheng,yaogenjumiaomudeshengchangjibingliqingkuang,duikenengfashengdebingchonghaijinxingyufang,duiyifashengdebingchonghaiyaojishifangzhi。qiujimiaomuzhaixinhou,kepenshiyici1∶0.7∶200倍波爾多液。若發現有霜黴病發生,噴一次78%科博600倍液或80%乙磷鋁300~500倍液。秋季,葉片已經老化,新梢也基本停止生長,此時以1∶1∶180倍或1∶1.5∶180倍波爾多液為主。
六、防fang治zhi蟲chong害hai。提ti高gao苗miao木mu對dui養yang分fen及ji光guang照zhao的de利li用yong率lv,促cu進jin苗miao木mu根gen係xi的de生sheng長chang發fa育yu,可ke有you效xiao地di增zeng強qiang苗miao木mu抗kang病bing蟲chong害hai能neng力li。在zai蟲chong害hai發fa生sheng季ji節jie,在zai噴pen殺sha菌jun劑ji時shi加jia入ru防fang治zhi害hai蟲chong的de藥yao物wu即ji可ke。通tong常chang可ke選xuan用yong敵di敵di畏wei1000~1500倍液或龍威1號1000~1500倍液等。噴藥最好避開中午高溫,於下午4點以後噴藥。
七、科學出圃。苗木落葉後,不應立即出圃,此時是營養繼續貯存於根部的過程。秋末冬初要對圃內的苗木進行調查,核對苗木的種類、品種、數量,準備包裝材料和運輸工具,確定臨時假植和越冬的場所,做好出圃準備。一般來說,在“小雪”qianhouchupubijiaoheshi。zaiqimiaochupushiyaojinkenengdijianshaoshanggen。qimiaohou,lijiyizhibeiyinwufengdedifang,anzhaomiaomuchupuguigejinxingxuanmiaofenji,fenbiechuli,gediduimiaomudechupuguigeyaoqiubutong,yibanyingjubeidetiaojianshigenxishengchanglianghao,juyoujiaowanzhengdezhucegenhejiaoduodexugen,zhitiaojianzhuang,fayuchongshidadaoyidingdegaoduhecudu,wuyanzhongdebingchonghaihejixiesunshang。bufuhechupuyaoqiude,jianjuebunengchupu。fenjidetongshijinxingxiuzheng,zhuyaoshijiandiaodaibingchongdeshoushangdezhishao、不充實的秋梢和帶有病蟲過長的畸形根係。剪口要平滑,以利早期愈合。為便於包裝、運輸,亦可對過長、過多的枝梢進行適當修剪。
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