壽shou光guang市shi洛luo城cheng街jie道dao王wang家jia堯yao水shui村cun是shi黃huang瓜gua種zhong植zhi專zhuan業ye村cun。在zai菜cai農nong王wang師shi傅fu的de棚peng內nei,他ta和he老lao伴ban正zheng在zai給gei黃huang瓜gua落luo蔓man,記ji者zhe發fa現xian他ta在zai落luo蔓man時shi隻zhi是shi將jiang蔓man子zi落luo下xia來lai,並bing沒mei有you將jiang下xia部bu的de老lao葉ye摘zhai除chu,存cun在zai一yi些xie問wen題ti。記ji者zhe建jian議yi,菜cai農nong在zai給gei黃huang瓜gua摘zhai葉ye時shi,要yao注zhu意yi以yi下xia三san個ge方fang麵mian。
一(yi)是(shi)落(luo)蔓(man)前(qian)摘(zhai)葉(ye)。在(zai)當(dang)地(di),落(luo)蔓(man)時(shi)不(bu)摘(zhai)老(lao)葉(ye)的(de)菜(cai)農(nong)不(bu)在(zai)少(shao)數(shu),主(zhu)要(yao)是(shi)嫌(xian)麻(ma)煩(fan)。記(ji)者(zhe)看(kan)到(dao),落(luo)蔓(man)後(hou)的(de)葉(ye)片(pian)鋪(pu)在(zai)地(di)麵(mian)上(shang),葉(ye)片(pian)聚(ju)集(ji),見(jian)不(bu)到(dao)陽(yang)光(guang),已(yi)經(jing)失(shi)去(qu)了(le)存(cun)在(zai)的(de)必(bi)要(yao)。而(er)且(qie),若(ruo)不(bu)及(ji)時(shi)摘(zhai)除(chu)葉(ye)片(pian),會(hui)導(dao)致(zhi)下(xia)部(bu)空(kong)氣(qi)流(liu)通(tong)差(cha),濕(shi)度(du)大(da),再(zai)加(jia)上(shang)近(jin)期(qi)連(lian)陰(yin)天(tian)較(jiao)多(duo),濕(shi)度(du)更(geng)大(da),抗(kang)病(bing)能(neng)力(li)變(bian)差(cha),病(bing)原(yuan)菌(jun)極(ji)易(yi)從(cong)老(lao)葉(ye)處(chu)侵(qin)染(ran)發(fa)病(bing),害(hai)處(chu)多(duo)多(duo)。
ershizhaiyexuliubing。yinweihuangguayebingzhongkong,zhicui,zaishuchulaoyeshi,ruojiangyebingyiqizhaichu,henrongyizaochengjingmanshoushang,ruoyudaolianyintianshidudashi,henrongyishijingmanshangkouzhouweizuzhiranbinghuaisi,yingxianghuangguazhengchangshengchang。tangruozaizhaiyeshiliuxiayebing,yebinghuizhujianhuanghua,yujingmandejiehechuziranchanshenglicengtuoluo。jishishangkouzhouweibeiqinran,yekeyijizaofaxian,jishiyongyao,fangzhiduijingganzaochengshanghai,xiaoguohenhao。
三是摘葉後注意噴藥防病。摘葉後,黃瓜傷口處流出很多營養液,容易從此處感染細菌性病害,可在摘葉前後噴用72%硫酸鏈黴素3000倍混加47%加瑞農600倍,預防細菌性病害發生。還有,在摘葉時應選擇在晴天,棚內較為幹燥時進行較好。
手機版




