一般來說,茶樹在高溫幹旱天氣持續8-10天後就會出現焦斑、焦葉以及頂芽、嫩梢萎縮等旱熱害症狀,尤其是幼齡茶園更為嚴重,應及早預防和補救。
預防措施 (1)jishihuachu,jianshaobiaotushuifenzhengfa。zaiyanretianqikaishiqian,ruyouhanqingfashengdekeneng,yingchenyuhoutianqizhuanhaoshilijichucaosongtu。zhuyibunengzaihanqijinxing,yimianzaochengchashu(尤是幼齡茶樹)暴曬而死。(2)在茶樹兩旁鋪草,以降低地溫,保持土壤潮濕,抑製雜草滋生。
補救措施 對dui已yi遭zao旱han熱re害hai的de茶cha樹shu,在zai旱han情qing消xiao失shi後hou應ying根gen據ju受shou害hai情qing況kuang進jin行xing不bu同tong程cheng度du的de修xiu剪jian,並bing采cai用yong根gen部bu施shi肥fei和he葉ye麵mian施shi肥fei相xiang結jie合he的de方fang式shi,及ji時shi增zeng施shi速su效xiao氮dan肥fei和he鉀jia肥fei,培pei養yang秋qiu梢shao,以yi減jian輕qing對dui來lai年nian茶cha葉ye產chan量liang的de影ying響xiang。
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