緩慢見光 避免閃苗連陰後驟晴時,可采用隔1~3個草苫揭開1個ge的de方fang法fa,使shi蔬shu菜cai逐zhu步bu見jian光guang,避bi免mian秧yang苗miao打da蔫nian閃shan苗miao。如ru此ci反fan複fu數shu次ci或huo數shu天tian,揭jie苫shan數shu量liang由you少shao到dao多duo,至zhi蔬shu菜cai生sheng長chang正zheng常chang為wei止zhi。使shi用yong卷juan簾lian機ji的de可ke將jiang草cao苫shan卷juan至zhi棚peng中zhong間jian,不bu要yao一yi下xia全quan部bu拉la開kai。進jin入ru正zheng常chang管guan理li後hou,在zai溫wen度du允yun許xu情qing況kuang下xia盡jin量liang早zao揭jie和he晚wan蓋gai草cao苫shan,揭jie草cao苫shan時shi間jian應ying以yi揭jie開kai草cao苫shan後hou溫wen室shi內nei溫wen度du不bu下xia降jiang為wei宜yi,蓋gai草cao苫shan時shi間jian應ying根gen據ju季ji節jie和he室shi內nei溫wen度du而er定ding,應ying在zai日ri光guang溫wen室shi內nei溫wen度du降jiang至zhi15℃~17℃時蓋草苫。
遭受凍害及時補救剪除枯枝,人工噴水,以低溫度、少shao光guang照zhao為wei主zhu管guan理li,逐zhu步bu增zeng加jia光guang照zhao和he溫wen度du。對dui長chang勢shi較jiao弱ruo或huo結jie果guo較jiao多duo的de植zhi株zhu,及ji時shi采cai收shou,並bing適shi量liang疏shu花hua疏shu果guo,以yi減jian少shao營ying養yang消xiao耗hao。同tong時shi葉ye麵mian噴pen肥fei,補bu充chong營ying養yang。一yi般ban可ke葉ye麵mian噴pen施shi0.3%磷酸二氫鉀加0.3%硝酸鈣、1%的葡萄糖液。
強化控濕防病 持續低溫雨雪天氣,溫室內空氣濕度大,易誘發病害,應在中午短時間通風排濕,控製病害發生;特別注意室內15℃~25℃溫度範圍空氣相對濕度控製在90%以下。發病後可選用煙霧劑、粉塵劑防治,以利於均勻施藥和避免溫室內空氣濕度過高。