dongjiyouyuqiwendi
，guangzhaoshijianduan
，ziranjiuhuiyingxiangdaopengneishucaiguanghezuoyongdezhengchangjinxing，tebieshizailianxuchuxianyinyutiandeqingkuangxia，guangzhaojiugengjiazhongyao。erhenduonongminzaidongjishucaidapengguanliguochengzhong，wangwangzhizhuzhongbaowenguanli，erhushilepengcaidecaiguangyaoqiu
，daozhipengcaiyinguanghezuoyongshouzuerfashengbingbian
，zaochengjianchan。

yiweinongminfanying，tajiadedapenghuangguayoudedingyachuxianweinian，xinkaihuabuzuoguo
，yuanlaiguazhudehuangguayeshengchanghuanman。yuanxiantajiadezhegedapengyitiannengcaizhaisansibaijinhuanggua，erjinyiduanshijianmeitianyejiushinengcaizhaiyibaisansishijin
，chanliangdadajiangdi。haiyouyinongminfanying，tajiadapenglidefanqieyefashengleleisidexianxiang，dingyaweinian，guabuzhuguo，youdefashenglehuimeibing，haiyoudezhengzhuchuxianweinian。

經(jing)專(zhuan)家(jia)分(fen)析(xi)，以(yi)上(shang)大(da)棚(peng)之(zhi)所(suo)以(yi)發(fa)生(sheng)這(zhe)種(zhong)病(bing)變(bian)
，是(shi)因(yin)為(wei)光(guang)照(zhao)不(bu)足(zu)
，蔬(shu)菜(cai)光(guang)合(he)作(zuo)用(yong)不(bu)能(neng)正(zheng)常(chang)進(jin)行(xing)所(suo)致(zhi)。前(qian)些(xie)天(tian)由(you)於(yu)連(lian)續(xu)陰(yin)天(tian)
，他(ta)們(men)為(wei)保(bao)證(zheng)棚(peng)溫(wen)
，全(quan)天(tian)都(dou)覆(fu)蓋(gai)草(cao)簾(lian)，覺(jiao)得(de)反(fan)正(zheng)也(ye)沒(mei)有(you)陽(yang)光(guang)，也(ye)就(jiu)沒(mei)有(you)揭(jie)開(kai)草(cao)簾(lian)。

正確的做法是：即ji使shi在zai沒mei有you直zhi射she光guang的de條tiao件jian下xia，也ye應ying該gai定ding時shi揭jie開kai草cao簾lian，散san射she光guang同tong樣yang能neng使shi作zuo物wu進jin行xing光guang合he作zuo用yong，隻zhi要yao在zai能neng看kan清qing人ren影ying的de情qing況kuang下xia
，無wu論lun陰yin天tian與yu否fou，都dou應ying該gai適shi當dang揭jie開kai草cao簾lian。

再就是冬季澆水
，切忌大水漫灌，應少澆，勤澆
，這樣才能保持棚溫和合理的濕度，濕度過高也是造成上述病害的一個原因。