千年桐育苗技术与苗木生长规律初步研究

对福建省建阳市千年桐育苗技术与苗木生长规律进行了初步研究。结果表明,千年桐1年生苗高平均123.67 cm,最高的149 cm;平均地径1.87 cm,最粗的2.5 cm;>5 cm Ⅰ级侧根7-13条,根系较发达,利于裸根苗造林。播种后48 d左右苗木开始出土,1年生苗可出圃造林;6月中旬-9月中旬为苗木生长高峰期,期间要加强肥水管理,促进苗木生长;9月下旬基本停止生长,9月中旬开始不宜追施N肥,9月中旬-10月应适量施P、K肥,以促进苗木直径生长和苗木木质化。

Preliminary study on the seedling-raising techniques and nursery stock′s growth rhythm of Aleurites montana

Seedling-raising techniques and nursery stock′s growth rhythm of Aleurites montana were preliminarily studied.The results showed that one-year-old nursery stock height was 123.67 cm on average,and the highest 149 cm;the ground diameter was 1.87 cm on average,and the largest 2.5 cm;there were 7 to 13 lateral roots thicker than 5 cm.The strong roots were favorable for tree growth and aforestation.The seedlings appeared out of soil 48 days after sowing and one-year-old stock could be transplanted out of nursery into plantation.The peak of seedling growth was from the middle of June to the middle of September,during which the water and fertilizer management was needed.The stock kept growing until the late September and nitrogen was not needed from the middle of September.The proper P and K fertilizer was demanded for stock diameter growing from the middle of September to October.