直播茶园常出现缺苗缺丛,除与茶籽质量优劣,苗期管理好坏有关,也与生长环境有关。因为茶籽播种后,在播种行上面经长期的日晒雨淋,形成了一层较厚的板结层,阻碍茶芽穿出土面。已出土面的幼小茶苗,又因棍系少扎根浅,叶而角质层薄,蒸腾作用强,极易引起水分亏损,在幼苗生长期间,如果出现高温干旱水分不足,就会停止生长,叶片萎缩变黄,进而芽叶焦灼以致全株死亡。所以新辟茶园的遮荫抗旱保苗是一项非常重要的工作,必须针对当地气候变化规律,采取积极有效措施,确保幼龄茶园的苗全、苗齐、苗壮。 Direct seeding tea plantations often appear lack of lack of plexus, in addition to quality and poor tea seedlings, seedling management is good or bad, but also with the growth environment. Because after the sowing of tea seed, the sowing row above by the long-term sun and rain, forming a layer of thick lamellar layer, hinder the tea buds out of the soil surface. Has been unearthed in the face of young tea seedlings, but also because of the Department of sticks and less rooted shallow, leaf and cuticle thin, strong transpiration, easily lead to water loss, during seedling growth, if the lack of high temperature and drought water, it will stop growing leaves Shrinkage yellowing, and buds so anxious that the whole plant died. Therefore, the new tea plantation seedling drought and seedling protection is a very important task, we must take into account the local climate change laws and take active and effective measures to ensure that all young seedling seedlings, seedling Qi, Miao Zhuang.