dangxiguashangweidadaopengdashengqi,erzhizhujiuguozaodibiaoxianchushengchanghuanman,jingjiebianduan,guamanbianxi,yepianbianxiao,jibuyexianzhushuairuodengtezhengshi,chengweizaoshuai。fangzhixiguazaoshuaidecuoshizhuyaoyouyixiajixiang:
⑴加強肥水管理:feishuigongyingbuzuhuobujishiwangwangshizaochengzhizhuzaoshuaidezhuyaoyuanyinzhiyi。jiehejiaoshui,caiyongdixiagenbuzhuifeihedishangyemianpensafeiliaorongyexiangjiehedefangfa。genbuzhuishiniaosumeizhu25-30克,葉麵噴灑0.3%尿素或磷酸二氫鉀水溶液。
⑵提高根係的吸收功能:根係發育不良或遭受某些病蟲危害時,往往造成早衰,如發現根部土壤中有蟲害,用50%辛硫磷乳油2500-3000倍水溶液灌根,每株灌200-250毫升。如果是由於根部土壤中水、氣、溫度等條件等失調造成的生理性病害,要加強中耕鬆土,使根部土壤疏鬆,通氣良好,根係的吸收功能也就很快得到改善。
⑶合理整枝留瓜:整zheng枝zhi過guo重zhong或huo單dan株zhu西xi瓜gua較jiao多duo也ye是shi造zao成cheng植zhi株zhu早zao衰shuai的de原yuan因yin之zhi一yi。蔓man葉ye的de良liang好hao生sheng長chang是shi花hua和he瓜gua良liang好hao生sheng長chang的de基ji礎chu。要yao達da到dao高gao產chan,就jiu要yao有you一yi定ding的de葉ye麵mian積ji,如ru果guo整zheng枝zhi過guo重zhong或huo單dan株zhu留liu瓜gua較jiao多duo,就jiu會hui大da大da地di削xue弱ruo營ying養yang始shi終zhong,因yin此ci合he理li地di整zheng枝zhi留liu瓜gua,保bao持chi較jiao大da的de營ying養yang麵mian積ji,也ye是shi防fang止zhi西xi瓜gua早zao衰shuai,獲huo得de高gao產chan的de關guan鍵jian。
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