棚栽黃瓜“花打頂”

，即ji生sheng長chang點dian不bu再zai生sheng長chang和he伸shen長chang
，頂ding端duan小xiao葉ye片pian密mi集ji
，在zai很hen短duan的de時shi間jian內nei形xing成cheng雌ci雄xiong花hua相xiang間jian的de花hua簇cu，形xing成cheng自zi封feng頂ding現xian象xiang。如ru不bu及ji時shi采cai取qu措cuo施shi，植zhi株zhu將jiang很hen快kuai死si亡wang。
   
　　發生原因 棚內土壤過濕或過幹，地溫偏低，加上施用了未腐熟的農家肥
，或單一過量使用氮素化肥，造成黃瓜根係發育差
，吸收能力弱，形成“花打頂”。youxiecainongweilezhuiqiugaochan
，changshiyongzenggualingdeng，shihuangguatineideneiyuanjisuzenggao，shiyingyangwuzhizhuyaoyunxiangcirui
，xingchengcihua，shenzhilianxuchuxianduogecihua
，xionghuazetuihua，chengweizhiyoulaoyeerwuxinyedezifengdingzhizhu。pengneizhouyewenchada，yewenpiandihuozheduanrizhaotiaojianxia
，youliyucihuadexingcheng，ercihuahexionghuadexingchengzexuyaogengduodeyingyangwuzhi，suoyicihuaxingchengdeguoduo，jiuhuiduiyingyangshengchangchanshengyizhi
，chuxian“花打頂”。
   
　　防治方法 水shui分fen供gong應ying要yao靈ling活huo掌zhang握wo，棚peng內nei土tu壤rang表biao麵mian要yao見jian幹gan見jian濕shi，澆jiao足zu定ding植zhi水shui和he緩huan苗miao水shui，定ding植zhi後hou及ji時shi中zhong耕geng
，反fan複fu鬆song土tu，提ti高gao地di溫wen增zeng加jia土tu壤rang通tong透tou性xing
，促cu進jin根gen係xi發fa育yu，多duo發fa新xin根gen。農nong家jia肥fei要yao充chong分fen腐fu熟shu，均jun勻yun追zhui肥fei，避bi免mian因yin施shi肥fei不bu當dang而er造zao成cheng的de傷shang根gen。避bi免mian過guo高gao追zhui求qiu產chan量liang而er亂luan用yong植zhi物wu調tiao節jie劑ji，使shi用yong後hou已yi出chu現xian症zheng狀zhuang的de，則ze每mei隔ge7天左右噴施1次300~400beidexibaofenliesu。caiquzengguangcuoshi，fugaiwenshidecaoshanyingzaojiewangai

，jinliangyanchangrizhaoshijian，youtiaojiandekeyiyongdengguangzhaoming。yejiancaiqurengongzengwencuoshi，jinliangjianxiaozhouyewencha
，liyuxionghuadexingcheng。