西xi葫hu蘆lu根gen係xi發fa達da,易yi旺wang長chang。而er發fa生sheng旺wang長chang後hou,就jiu容rong易yi造zao成cheng棵ke子zi不bu坐zuo瓜gua或huo坐zuo瓜gua後hou化hua瓜gua,特te別bie是shi在zai植zhi株zhu生sheng長chang前qian期qi這zhe種zhong現xian象xiang尤you為wei突tu出chu。在zai這zhe種zhong情qing況kuang下xia,很hen多duo菜cai農nong都dou依yi賴lai激ji素su進jin行xing控kong製zhi,並bing且qie藥yao效xiao越yue強qiang的de藥yao劑ji越yue受shou菜cai農nong喜xi愛ai,於yu是shi采cai用yong激ji素su控kong製zhi西xi葫hu蘆lu旺wang長chang成cheng了le菜cai農nong的de“殺手鐧”。
1月24日,記者來到青州市何官鎮的西葫蘆種植區,發現由於菜農過量使用激素,導致大棚內西葫蘆心葉呈“雞爪“狀,甚至“無頭”的現象普遍存在,嚴重地抑製了西葫蘆的長勢,大大降低了西葫蘆的產量。為此,記者提醒西葫蘆種植戶:使用激素調控西葫蘆長勢的方法可行,但不可過於依賴。要培育西葫蘆壯棵,需要按照西葫蘆的生長習性,調控好溫度、適時適量施肥澆水,才能很好地控旺促壯。
首先,溫度管理是控旺第一要素。西葫蘆結瓜前期白天生長發育適溫18-22℃,夜間溫度8-10℃。若白天溫度高於25℃,guanghechanwujileishaoerxiaohaoda,xihuluyiwangchang。yinci,zaiqiuyanchahuozheyuedongchaxihuludingzhiqiwendushanggaodeqingkuangxia,guanlishangyingjinxingkongwenguanli,erbushitiwencuke。kongwencuoshijiushijiaqiangtongfeng,qiewujiangqianlianfangfengkouguozaoguanbi。
qici,bimianturangshiduguoda。xihuludingzhihuanmiaohou,guanlishangyaoyikongshuicugenweizhu,ruoturangbuzhiguoyuganhan,jieguoqianjiubuyaojiyujiaoshui。dangranruozhizhuqueshuiweinianyanzhong,zeyingliujiaoxiaoshui,quebaozhizhuzhengchangshengchang,qiebukedashuimanguan,zaochengzhizhuwangchang。tongshi,xihulugenguazuozhuhoudediyishuishuiliangyebukeguoda,guodayizaochenghuagua,jinerdaozhizhizhuwangchang,weicushishengzhishengchangdeshunlijinxing,kecaiyongjiaoxiaoshuidefangshijinxingjiaoguan。
另ling外wai,後hou期qi控kong氮dan補bu鉀jia。西xi葫hu蘆lu進jin入ru結jie瓜gua期qi後hou,需xu求qiu鉀jia肥fei的de量liang大da,因yin而er在zai衝chong肥fei時shi還hai要yao注zhu意yi高gao鉀jia肥fei料liao的de使shi用yong,不bu可ke過guo量liang使shi用yong高gao氮dan肥fei料liao,以yi免mian氮dan肥fei過guo量liang而er造zao成cheng植zhi株zhu旺wang長chang。 當(dang)然(ran),若(ruo)西(xi)葫(hu)蘆(lu)種(zhong)植(zhi)過(guo)早(zao),前(qian)期(qi)溫(wen)度(du)過(guo)高(gao)也(ye)可(ke)使(shi)用(yong)激(ji)素(su)進(jin)行(xing)調(tiao)節(jie),但(dan)不(bu)可(ke)過(guo)量(liang)使(shi)用(yong),特(te)別(bie)是(shi)多(duo)效(xiao)唑(zuo)更(geng)不(bu)宜(yi)連(lian)續(xu)多(duo)次(ci)使(shi)用(yong)。一(yi)般(ban)在(zai)西(xi)葫(hu)蘆(lu)緩(huan)苗(miao)後(hou)5-7天,用15%的多效唑1500倍噴灑植株,但不要單噴生長點,調控植株長勢。
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