论文部分内容阅读
花曲柳种子以沙藏处理出苗率高；花曲柳幼苗最佳经营密度为１６０ 株／ｍ２ ；为防治晚霜可采用床面覆草或架设苇帘或日出前浇水等方法保护苗木
Fraxinus mandshurica seed treatment to sand emergence rate is high; the optimal operating density of Fraxinus mandshurica seedlings is 160 plants / m2; for the control of night frost can be used to cover the bed of grass or reed curtain or watering before sunrise to protect seedlings