1.苗木出圃時間 putaoshuyuluoyeguoshu,yibanqiujiyepiantuoluohoujikekaishichupu。qihouwennuandediquqiujiqimiaohoukelijijinxingqiuzai,zheyangbudanliyugenxihuifu,erqieyekeyishimiaopudizaiqimiaohoubuzhonglvfeihuozhongzhiqitazuowuyihuifudili。zaidongjijiaoweihanlengdebeifangdiqu,qiujiluoyewamiaohou,buyilijizaizhi,eryaojiangmiaomujiazhiyudijiaohuojiazhigouzhong,yibeidiernianchunjizaizhi。zaiyixieqiujiyingezhongyuanyinbunengwamiaodedifang,miaomuyekezaimiaopuzhongyuedong,diernianchunjizaixingqimiao,danyaozhuyijishijinxingdishangbumaitufanghan,fangzhitianjiandonghaiheshu、畜為害。同時,要注意第二年春季起苗不能太晚,以防引起根係和枝條的損傷,造成過多的傷流。
2.起苗與假植>2.起苗與假植 起苗前要在苗圃進行認真的品種核對和標記,嚴防起苗中發生品種混亂和混雜。如果苗圃土壤幹燥,可事先適當灌1次水,這樣不但挖苗容易,而且也不易損傷根係。苗圃中葡萄根係一般多分布於插條下端30―50厘li米mi的de土tu層ceng中zhong,而er且qie根gen係xi向xiang四si周zhou擴kuo散san,所suo以yi挖wa苗miao時shi應ying盡jin量liang遠yuan離li苗miao木mu根gen頸jing部bu分fen。一yi般ban先xian在zai行xing間jian挖wa掘jue,然ran後hou再zai在zai株zhu間jian分fen離li,以yi保bao證zheng肉rou質zhi根gen長chang度du在zai15厘米以上。挖苗後可將根係上附著的土輕輕抖散,注意盡量多地保留支根和須根,減少根係損傷。挖苗後立即將傷根、斷根剪去,然後按品種每50株捆成l小捆,並在捆外掛上品種標簽。要運銷的苗木可用草袋、麻ma袋dai進jin行xing包bao裝zhuang,對dui運yun途tu較jiao遠yuan的de苗miao木mu,在zai袋dai內nei填tian入ru適shi量liang保bao濕shi物wu或huo用yong塑su料liao袋dai包bao裝zhuang,防fang止zhi運yun輸shu過guo程cheng中zhong苗miao木mu失shi水shui幹gan枯ku。對dui暫zan不bu外wai運yun的de苗miao木mu要yao立li即ji進jin行xing假jia植zhi。假jia植zhi可ke在zai地di窖jiao貯zhu存cun或huo在zai假jia植zhi溝gou中zhong進jin行xing。假jia植zhi溝gou應ying在zai背bei風feng向xiang陽yang、土層深厚、不積水的地方挖掘,一般深80―100厘米,寬80limi,changduanxuyaojiazhimiaomudeduoshaoerding。jiazhigouwahaohou,xianzaigouditianruyicengshishahuoxitu,ranhoujiangkunhaodemiaomugenxixiangxiaanpinzhongzhengqipaizaigounei,bingzaigenxibufentianshanghou15―20limidexishahuorentu。duimiaomushangbuzhitiaoyeyingshidangyanmai,fangzhidongjidongshaohefenggan,maituhouduyijudangdidongjiqiwenzhuangkuangerding。weilefangzhijiazhizhongzaochengpinzhonghunluan,chumeikunmiaoshangyingguashangpinzhongmingpaiwai,haiyingduijiazhigouneigepinzhongmiaomuanzhiqingkuangzuoxiangxijizai,qimiaoshizaicihedui。duiyumiaoliangjiaodadedanwei,zuihaoanpinzhongfenkaijiazhi。
3.苗木分級 按國家規定的標準對苗木進行分級是苗木出售前的一個重要環節。為了確保苗木質量,必須嚴肅認真進行分級。
葡萄育苗方法較多,加之不同品種生長強弱有所差異,因此苗木分級和規格標準可能有所不同,但對優良的苗木來說,必須是品種純正、枝條健壯、根係發達、無損傷和病蟲為害。對於嫁接苗來說,除以上各項標準外,接合部應愈合良好。
4.檢疫與苗木消毒 苗(miao)木(mu)檢(jian)疫(yi)是(shi)用(yong)法(fa)律(lv)的(de)形(xing)式(shi)防(fang)止(zhi)危(wei)險(xian)性(xing)病(bing)蟲(chong)害(hai)傳(chuan)播(bo)的(de)重(zhong)要(yao)措(cuo)施(shi),各(ge)地(di)苗(miao)圃(pu)和(he)育(yu)苗(miao)單(dan)位(wei)必(bi)須(xu)嚴(yan)格(ge)執(zhi)行(xing)。根(gen)據(ju)國(guo)家(jia)植(zhi)物(wu)檢(jian)疫(yi)部(bu)門(men)的(de)規(gui)定(ding),我(wo)國(guo)葡(pu)萄(tao)苗(miao)木(mu)的(de)國(guo)內(nei)檢(jian)疫(yi)性(xing)蟲(chong)害(hai)是(shi)葡(pu)萄(tao)根(gen)瘤(liu)蚜(ya)和(he)美(mei)洲(zhou)白(bai)娥(e),檢(jian)疫(yi)性(xing)病(bing)害(hai)是(shi)葡(pu)萄(tao)根(gen)癌(ai)病(bing)。
檢疫由法定的檢疫部門進行,經過檢疫的苗木必須有檢疫部門簽發的檢疫證和準運證方可向外運銷。
生sheng產chan上shang不bu但dan要yao杜du絕jue檢jian疫yi性xing病bing蟲chong的de傳chuan播bo,而er且qie要yao盡jin量liang防fang止zhi其qi他ta一yi些xie病bing蟲chong的de傳chuan播bo。因yin此ci,苗miao木mu不bu但dan要yao檢jian疫yi,而er且qie在zai運yun銷xiao前qian要yao進jin行xing苗miao木mu消xiao毒du。這zhe對dui防fang止zhi葡pu萄tao壁bi虱shi、介殼蟲及黑痘病等病蟲害的隨苗傳播有良好的作用。葡萄苗木消毒常用3―5度(波美度)的石硫合劑或0.1%的升汞溶液全株噴灑或浸苗l一3分鍾,然後晾幹,即可包裝運銷.
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