xihulugenxifada,yiwangchang。erfashengwangchanghou,jiurongyizaochengkezibuzuoguahuozuoguahouhuagua,tebieshizaizhizhushengchangqianqizhezhongxianxiangyouweituchu。zaizhezhongqingkuangxia,henduocainongdouyilaijisujinxingkongzhi,bingqieyaoxiaoyueqiangdeyaojiyueshoucainongxiai,yushicaiyongjisukongzhixihuluwangchangchenglecainongde“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。
其qi次ci,避bi免mian土tu壤rang濕shi度du過guo大da。西xi葫hu蘆lu定ding植zhi緩huan苗miao後hou,管guan理li上shang要yao以yi控kong水shui促cu根gen為wei主zhu,若ruo土tu壤rang不bu至zhi過guo於yu幹gan旱han,結jie果guo前qian就jiu不bu要yao急ji於yu澆jiao水shui。當dang然ran若ruo植zhi株zhu缺que水shui萎wei蔫nian嚴yan重zhong,則ze應ying溜liu澆jiao小xiao水shui,確que保bao植zhi株zhu正zheng常chang生sheng長chang,切qie不bu可ke大da水shui漫man灌guan,造zao成cheng植zhi株zhu旺wang長chang。同tong時shi,西xi葫hu蘆lu根gen瓜gua坐zuo住zhu後hou的de第di一yi水shui水shui量liang也ye不bu可ke過guo大da,過guo大da易yi造zao成cheng化hua瓜gua,進jin而er導dao致zhi植zhi株zhu旺wang長chang,為wei促cu使shi生sheng殖zhi生sheng長chang的de順shun利li進jin行xing,可ke采cai用yong澆jiao小xiao水shui的de方fang式shi進jin行xing澆jiao灌guan。
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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