萎蔫原因 遇yu大da雪xue連lian陰yin天tian氣qi時shi
，室shi內nei長chang時shi間jian低di溫wen寡gua照zhao
，地di溫wen較jiao低di，菜cai苗miao長chang勢shi較jiao弱ruo。在zai這zhe種zhong情qing況kuang下xia，保bao溫wen性xing差cha的de溫wen室shi黃huang瓜gua秧yang苗miao極ji易yi產chan生sheng凍dong害hai。在zai定ding植zhi黃huang瓜gua苗miao時shi
，若ruo基ji肥fei中zhong速su效xiao性xing化hua肥fei施shi用yong過guo多duo，土tu壤rang中zhong的de化hua肥fei濃nong度du較jiao高gao，將jiang會hui使shi根gen尖jian受shou損sun
，降jiang低di根gen係xi吸xi收shou水shui分fen和he無wu機ji鹽yan的de能neng力li。雪xue後hou天tian氣qi轉zhuan晴qing時shi，突tu然ran揭jie開kai草cao苫shan，雪xue天tian棚peng室shi氣qi溫wen相xiang對dui較jiao低di，黃huang瓜gua秧yang葉ye麵mian積ji係xi數shu較jiao大da，突tu然ran揭jie苫shan會hui使shi氣qi溫wen迅xun速su上shang升sheng，葉ye片pian蒸zheng騰teng作zuo用yong增zeng強qiang，造zao成cheng瓜gua秧yang生sheng理li失shi水shui而er萎wei蔫nian。大da水shui漫man灌guan也ye可ke導dao致zhi植zhi株zhu萎wei蔫nian，灌guan水shui後hou土tu壤rang含han水shui量liang過guo高gao

，透tou氣qi性xing差cha
，在zai缺que氧yang條tiao件jian下xia土tu壤rang中zhong產chan生sheng有you毒du物wu質zhi，使shi根gen係xi中zhong毒du或huo缺que氧yang窒zhi息xi而er萎wei蔫nian。

防治措施 一yi是shi加jia強qiang苗miao期qi管guan理li培pei育yu壯zhuang苗miao，及ji時shi防fang治zhi病bing蟲chong害hai。二er是shi加jia強qiang溫wen室shi保bao暖nuan和he增zeng溫wen工gong作zuo，寒han流liu來lai時shi注zhu意yi保bao溫wen，並bing注zhu意yi不bu要yao澆jiao水shui，以yi免mian降jiang低di土tu壤rang溫wen度du。三san是shi少shao施shi速su效xiao性xing化hua肥fei

，多duo施shi腐fu熟shu的de有you機ji肥fei，並bing進jin行xing根gen外wai追zhui肥fei，根gen外wai追zhui肥fei可ke噴pen施shi高gao效xiao利li植zhi素su、複合磷酸二氫鉀、噴施寶等葉麵肥。四是雪後天晴時棚室應揭草苫，邊揭邊蓋，並葉麵噴灑20℃左zuo右you的de溫wen水shui
，及ji時shi摘zhai除chu老lao葉ye，降jiang低di蒸zheng騰teng作zuo用yong。至zhi秧yang苗miao恢hui複fu正zheng常chang生sheng長chang後hou，白bai天tian可ke全quan部bu拉la起qi草cao苫shan
，即ji使shi是shi陰yin天tian也ye要yao盡jin可ke能neng拉la起qi草cao苫shan，讓rang秧yang苗miao多duo見jian散san射she光guang，但dan夜ye間jian仍reng要yao蓋gai上shang兩liang層ceng保bao護hu膜mo
，做zuo好hao保bao溫wen工gong作zuo，嚴yan防fang秧yang苗miao第di二er次ci受shou凍dong。五wu是shi天tian晴qing後hou及ji時shi澆jiao水shui。黃huang瓜gua定ding植zhi前qian15～20天澆足底墒水，若活土層過深
，澆水後需再次整平畦麵
，使土壤達到深

、透、細、平
、實的標準。澆水以滴灌為宜


，避免大水漫灌，保持土壤良好的透氣性。