shendongqijianzhideshidongzhizhilichun,cishizhengshiwoguobeifangdiqushujiuhantian,yeshiwenshiwenduguanlideguanjianshiqi。riguangwenshineiwaidewenchajiaoda,yaobaozhengxiwenxingdeshucaizuowuzhengchangshengchang,zaiguanlishangyaoyibaowenweizhu。zaochenlacaoshandeshijian,yijiekaicaoshanshineiwendulveyouxiajiang(0.5~1.0℃)為宜,若下降1.5~2.0℃,說明揭草苫早了,若揭開草苫溫度迅速上升,說明此時揭草苫過晚了。若揭草苫前後溫室溫度變化過大不要過早通風,要等到室內達28~30℃時開始通風,通風量不宜過大,待溫度降至26℃(在13∶00~14∶00)guanbitongfengkou,guanfengkouhouyouyiduanshineiwenduxiangduidewendingshijian,zhengzhiwenshixuredeguocheng。zaoguanfengkouwangaicaoshan,yeshiyanchangguangzhaoshijiandecuoshizhiyi。daiwendujiangzhi22~20℃時覆蓋草苫,保證夜間最低溫度降到16℃,到早晨揭開草苫時室內溫度控製在10~12℃,若溫度過低要增加覆蓋物的厚度或在頭一天傍晚早蓋草苫,使晝夜溫差控製在15℃左右,以保證作物正常生長。澆水後要適當提高室內溫度,上午達到33℃時再通風,第二天上午市內溫度達31℃再通風,第三天轉入正常管理。提高溫室氣溫可同時達到提高地溫的目的,溫度高有利於排濕,對預防霜黴病、疫病、灰黴病有很好的效果。為提高溫室溫度應及時清掃棚膜上的灰塵,以增加透光性,有利於溫度的提高。
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