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。
yishiluomanqianzhaiye。zaidangdi,luomanshibuzhailaoyedecainongbuzaishaoshu,zhuyaoshixianmafan。jizhekandao,luomanhoudeyepianpuzaidimianshang,yepianjuji,jianbudaoyangguang,yijingshiqulecunzaidebiyao。erqie,ruobujishizhaichuyepian,huidaozhixiabukongqiliutongcha,shiduda,zaijiashangjinqilianyintianjiaoduo,shidugengda,kangbingnenglibiancha,bingyuanjunjiyiconglaoyechuqinranfabing,haichuduoduo。
二(er)是(shi)摘(zhai)葉(ye)須(xu)留(liu)柄(bing)。因(yin)為(wei)黃(huang)瓜(gua)葉(ye)柄(bing)中(zhong)空(kong),質(zhi)脆(cui),在(zai)疏(shu)除(chu)老(lao)葉(ye)時(shi),若(ruo)將(jiang)葉(ye)柄(bing)一(yi)起(qi)摘(zhai)除(chu),很(hen)容(rong)易(yi)造(zao)成(cheng)莖(jing)蔓(man)受(shou)傷(shang),若(ruo)遇(yu)到(dao)連(lian)陰(yin)天(tian)濕(shi)度(du)大(da)時(shi),很(hen)容(rong)易(yi)使(shi)莖(jing)蔓(man)傷(shang)口(kou)周(zhou)圍(wei)組(zu)織(zhi)染(ran)病(bing)壞(huai)死(si),影(ying)響(xiang)黃(huang)瓜(gua)正(zheng)常(chang)生(sheng)長(chang)。倘(tang)若(ruo)在(zai)摘(zhai)葉(ye)時(shi)留(liu)下(xia)葉(ye)柄(bing),葉(ye)柄(bing)會(hui)逐(zhu)漸(jian)黃(huang)化(hua),與(yu)莖(jing)蔓(man)的(de)結(jie)合(he)處(chu)自(zi)然(ran)產(chan)生(sheng)離(li)層(ceng)脫(tuo)落(luo)。即(ji)使(shi)傷(shang)口(kou)周(zhou)圍(wei)被(bei)侵(qin)染(ran),也(ye)可(ke)以(yi)及(ji)早(zao)發(fa)現(xian),及(ji)時(shi)用(yong)藥(yao),防(fang)止(zhi)對(dui)莖(jing)稈(gan)造(zao)成(cheng)傷(shang)害(hai),效(xiao)果(guo)很(hen)好(hao)。
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。
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