目mu前qian很hen多duo菜cai農nong在zai定ding植zhi甜tian椒jiao時shi,仍reng然ran采cai用yong平ping畦qi栽zai培pei,而er甜tian椒jiao根gen係xi較jiao弱ruo,同tong樣yang管guan理li條tiao件jian下xia,平ping畦qi栽zai培pei不bu如ru起qi壟long栽zai培pei成cheng活huo率lv高gao。因yin此ci,建jian議yi菜cai農nong在zai定ding植zhi時shi還hai是shi采cai用yong起qi壟long定ding植zhi,但dan現xian在zai天tian氣qi炎yan熱re,起qi壟long定ding植zhi時shi壟long不bu宜yi高gao,以yi防fang壟long上shang溫wen度du過guo高gao,影ying響xiang甜tian椒jiao生sheng長chang,起qi小xiao壟long較jiao合he適shi(高度5~8厘米即可),zheyangkeyifangzhijiaoshuihouchuxianougensikexianxiang,tigaotianjiaochenghuolv。lingwai,bushaocainongzaitianjiaodingzhiqianxianjiaoshui,dengshuishenwanhouzaidingzhitianjiao,zhezhongzuofabukexue。yinweixianjiaoshuizaidingzhirongyibaturanghechengxini,zheyangdengturangganhourongyibanjie,shitianjiaoyinturangtouqixingbuliangerchuxiansike,duicijianyicainonghaishixiandingzhihoujiaoshui。
二、遮陽降溫工作要做好
一般來說,甜椒定植後應將棚內白天溫度控製在32℃,夜間控製在18℃。但目前如若不采取遮陽措施,晴天棚內溫度會高達40℃yishang,bushihetianjiaoshengchang,rongyichuxianyoumiaobeiqiangguangzhuoshangdengwenti,suoyijianyicainongshiyongzheyangwangjiangwen。xuyaotixingdeshi,cainongzaishiyongzheyangwangshibuyaoxianmafan,zuihaoyaozaizheyangwanghepengmozhijianliuxiakongxi,zheyangjiangwenxiaoguohuigenghao,lingwaihaiyaozhuyimeiyoutaiyangdeshihou,zuihaobuyaogaizheyangwang,fouzeyingxiangshucaishengchang。
三、防治根部病害
定植後甜椒死棵主要是由根部病害和澆水過大、雨水灌棚後出現的漚根導致的。
1.根部病害引起的死棵。導致辣椒死棵的根部病害主要有辣椒疫病、根腐病(疫黴根腐病和腐黴根腐病)、qingkubingdeng。genbubinghaishilajiaodehuimiexingbinghai,yidanfabingsikeyanzhong,hennankongzhi。duiyuzhexiebinghai,haishiyaoyifangweizhu。jianyicainongzaizhongzhiqianmeimuyongduoning1公斤+甲基托布津1公斤拌土撒於定植溝內,並與土壤混合均勻,可有效地防治辣椒的根部病害。
2.漚(ou)根(gen)導(dao)致(zhi)的(de)死(si)棵(ke)。漚(ou)根(gen)出(chu)現(xian)的(de)死(si)棵(ke)主(zhu)要(yao)是(shi)一(yi)次(ci)性(xing)澆(jiao)水(shui)過(guo)大(da)或(huo)雨(yu)水(shui)灌(guan)棚(peng)後(hou)導(dao)致(zhi)的(de)。一(yi)般(ban)來(lai)說(shuo),甜(tian)椒(jiao)澆(jiao)足(zu)定(ding)植(zhi)水(shui)後(hou),緩(huan)苗(miao)期(qi)一(yi)般(ban)不(bu)再(zai)澆(jiao)水(shui),以(yi)免(mian)造(zao)成(cheng)土(tu)壤(rang)濕(shi)度(du)過(guo)大(da)引(yin)發(fa)根(gen)部(bu)病(bing)害(hai)。所(suo)以(yi),如(ru)若(ruo)甜(tian)椒(jiao)定(ding)植(zhi)後(hou),土(tu)壤(rang)特(te)別(bie)幹(gan)旱(han)需(xu)要(yao)澆(jiao)水(shui)時(shi),一(yi)定(ding)要(yao)在(zai)清(qing)晨(chen)或(huo)傍(bang)晚(wan)澆(jiao)小(xiao)水(shui)。另(ling)外(wai),主(zhu)汛(xun)期(qi)內(nei)降(jiang)雨(yu)增(zeng)多(duo),而(er)甜(tian)椒(jiao)根(gen)係(xi)較(jiao)弱(ruo),此(ci)期(qi)管(guan)理(li)要(yao)防(fang)止(zhi)雨(yu)水(shui)灌(guan)棚(peng)。建(jian)議(yi)菜(cai)農(nong)朋(peng)友(you)在(zai)下(xia)大(da)雨(yu)之(zhi)前(qian),將(jiang)大(da)棚(peng)放(fang)風(feng)口(kou)關(guan)閉(bi),尤(you)其(qi)是(shi)溫(wen)室(shi)前(qian)臉(lian)處(chu)的(de)放(fang)風(feng)口(kou),即(ji)使(shi)下(xia)小(xiao)雨(yu)最(zui)好(hao)也(ye)要(yao)關(guan)閉(bi),避(bi)免(mian)雨(yu)水(shui)進(jin)入(ru)導(dao)致(zhi)辣(la)椒(jiao)死(si)棵(ke)。如(ru)果(guo)防(fang)護(hu)不(bu)當(dang),雨(yu)水(shui)灌(guan)棚(peng)後(hou),要(yao)及(ji)時(shi)將(jiang)雨(yu)水(shui)排(pai)出(chu)棚(peng)外(wai),用(yong)清(qing)水(shui)澆(jiao)1遍,結合劃鋤增加土壤的透氣性,必要條件下可灌施普力克等預防根部病害發生。
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