有的菜農為降低大棚內的空氣濕度，在給蔬菜澆水後立即通風，其實這種做法是不可取的。

jiaoshuihouyingshouxiantigaopengneiwendu
，daidiwentigaohoutongfeng。yinweijiaoshuihuizaochengdiwenjiangdi，congerdaozhishucaixishoushuifeidenenglijiangdi，erqiediwenpiandiduishucaimaoxigendeshanghaihenda，huidaozhishucaishengchangfayuyanzhongshouzu。jiaoshuihouxiantiwenhoutongfeng
，bujinkeyijiasudiwendehuifu
，haikeyidadazengjiakongqixiangduihanshuiliang
，youliyupengneishiqidepaichu
，gengyouliyujiangdipengneishidu。wendugaodiduishuifenzhengfahekongqixiangduihanshuiliangyingxianghenda

，diwenqingkuangxiakongqixiangduihanshuiliangxiao，kongqixiangduishiduyerongyidadaobaohe，cishitongfenghennanyouxiaojiangdipengneishidu。

澆jiao水shui後hou適shi當dang提ti高gao棚peng內nei溫wen度du，並bing不bu會hui對dui蔬shu菜cai生sheng長chang造zao成cheng危wei害hai，反fan而er對dui棚peng內nei發fa生sheng的de多duo數shu病bing害hai有you抑yi製zhi作zuo用yong。如ru冬dong春chun季ji節jie，棚peng內nei發fa生sheng的de病bing害hai多duo為wei低di溫wen型xing病bing害hai，高gao溫wen有you利li於yu抑yi製zhi該gai類lei病bing害hai的de發fa生sheng。在zai實shi際ji生sheng產chan中zhong，也ye有you菜cai農nong利li用yong高gao溫wen抑yi製zhi霜shuang黴mei病bing等deng病bing害hai發fa生sheng的de例li子zi。

因此提醒菜農朋友，在剛澆完水後不應立即通風，應在棚內溫度上升到33℃（不同作物之間存在差異）時再通風。