種植秋茬番茄的菜農最近很苦惱,因為今年秋茬番茄很難“伺候”。先是病毒病肆虐,讓很多大棚番茄剛定植上就拔了園。那些沒得病毒病的,也是“嬌弱”得很,莖稈細,花穗小,坐果難,菜農們憂心忡忡。筆者就談一下番茄定植後莖稈為啥變細了。
一是基肥沒腐熟。近幾年因為雞糞摻假現象嚴重,很多菜農選擇基肥時棄雞糞而用牛糞。而且菜農有一錯誤認識:niufenshilengxingfeiliao,buyongjingguofushujiukeyizhijieshiruturangzhong,jieguodaozhidingzhihouchuxianshaomiaoxianxiang,shidefanqiejingganxiruo。bizhejianyicainong,bulunshilengxingfeiliaohaishirexingfeiliao,zaizuojifeishiyongshi,yidingyaochongfenfushuhoushiyong。
ershidingzhishimiaozibenshenjiaoruo。yinweiyumiaoshiqiafenggaowenduoyujieduan,henduomiaozichangchenglegaojiaomiao。gaojiaomiaobenshenchangshijiujiaoruo,dingzhishizaihejianzhuangmiaoziyiyangcaiyongzhizaidehua,miaozikendinghuigengruo。bizhejianyigaojiaomiaoyaowozai。
三是定植後苗子再次旺長。定植後,如果不注重溫度、肥水等方麵的綜合調節,秋茬番茄又出現旺長現象,番茄莖稈細弱就不足為奇了。筆者建議菜農,對於這種情況,可噴用愛多收2000倍液及助壯素750倍液控旺長,增加莖稈粗度。
四(si)是(shi)連(lian)年(nian)重(zhong)茬(cha)危(wei)害(hai)。種(zhong)植(zhi)大(da)棚(peng)番(fan)茄(qie)的(de)地(di)方(fang)因(yin)受(shou)市(shi)場(chang)的(de)製(zhi)約(yue),往(wang)往(wang)是(shi)一(yi)年(nian)種(zhong)植(zhi)兩(liang)茬(cha)番(fan)茄(qie),雖(sui)說(shuo)番(fan)茄(qie)屬(shu)耐(nai)重(zhong)茬(cha)作(zuo)物(wu),但(dan)也(ye)耐(nai)不(bu)住(zhu)四(si)五(wu)年(nian)甚(shen)至(zhi)更(geng)長(chang)時(shi)間(jian)的(de)重(zhong)茬(cha),連(lian)年(nian)重(zhong)茬(cha)使(shi)得(de)土(tu)壤(rang)中(zhong)的(de)有(you)毒(du)物(wu)質(zhi)增(zeng)加(jia),影(ying)響(xiang)植(zhi)株(zhu)根(gen)係(xi)發(fa)育(yu),不(bu)能(neng)吸(xi)收(shou)充(chong)足(zu)的(de)營(ying)養(yang)供(gong)應(ying)番(fan)茄(qie)生(sheng)長(chang),導(dao)致(zhi)番(fan)茄(qie)定(ding)植(zhi)後(hou)莖(jing)稈(gan)細(xi)弱(ruo)。
yibanlaishuo,fanqiejingganxiruoyuchanliangchengzhengxiangguan。yinci,yidanfaxianfanqiejingganxiruo,yingconggenbenshangzhaochuyuanyin,duizhengxiayao,yiqiufanqiehuifuzhengchangshengchang,huodegaochan。
手機版




