1.保bao溫wen莫mo忘wang通tong風feng。晴qing好hao天tian氣qi下xia,光guang照zhao條tiao件jian較jiao好hao,外wai界jie氣qi溫wen雖sui較jiao低di,但dan揭jie開kai草cao苫shan後hou,棚peng內nei溫wen度du上shang升sheng較jiao快kuai,應ying在zai揭jie開kai草cao苫shan後hou一yi個ge小xiao時shi及ji時shi通tong風feng,這zhe樣yang既ji可ke排pai濕shi防fang病bing,也ye可ke充chong分fen補bu充chong棚peng內nei的de二er氧yang化hua碳tan,促cu進jin光guang合he作zuo用yong的de進jin行xing。即ji使shi遇yu到dao連lian陰yin天tian,揭jie開kai草cao苫shan後hou,棚peng內nei不bu降jiang溫wen的de前qian提ti下xia,也ye要yao進jin行xing通tong風feng換huan氣qi。
2.kongshuidanbunengqueshui。qiwenjiangdihou,bushaocainongpajiaoshuihoupengneishiduzengjiazhishibinghaijiazhong,erbuganjiaoshui。keshichuyujieguoqideshucaiduifeishuidexuqiuliangjiaoda,yinci,cainongyingxuanzeqinghaotianqicaiyongmoxiaanguanhuoxiaoshuiqinjiaodefangshijishigeishucaibuzushuifen。weilejiangdipengneishidu,cainongkezaijiaoshuidangtianhuodiertianzaibaozhengyangmiaobudaniandeqiantixia,tigaopengwenzhi35℃放風排濕。
3.及時補肥。低溫階段,作物生長慢,需求營養少,針對衝施化肥易導致傷根、黃huang葉ye的de問wen題ti,當dang前qian衝chong肥fei應ying以yi生sheng物wu菌jun肥fei為wei主zhu,這zhe樣yang不bu僅jin可ke以yi滿man足zu蔬shu菜cai對dui營ying養yang的de需xu求qiu,還hai可ke以yi提ti高gao地di溫wen,促cu進jin生sheng根gen。在zai低di溫wen時shi期qi,根gen係xi活huo力li弱ruo,為wei補bu充chong植zhi株zhu營ying養yang,可ke進jin行xing葉ye麵mian噴pen肥fei。
4.合理使用植物生長調節劑。噴用生長調節劑如芸苔素內酯、愛多收等,可以調節作物的生長狀況,增強植株的抗病、抗逆能力。
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