摘要
采用叶面施肥的方法,对黄檗1 a生苗木进行追施氮肥试验,结果表明:施氮肥可显著促进苗木生长,其中以20 g.m-2施肥量效果最为理想,平均苗高38.6 cm,平均地径1.05 cm,平均主根长16.7 cm,平均侧根数29.7个,平均鲜重103.9 g,平均干重30.78 g,分别是对照的111%、144%、132%、182%、149%和148%;20 g.m-2是黄檗1 a生苗木的适宜氮肥追施量。
The effects of nitrogen on the one year old seedling Fowth of Phellodendron anmrense were detected by top dressing with 10 g.m-2, 20g.m-2, 30g.m-2 and 0 g.m-2 pure urea. The results show that opti- mal application was the treatment with 20 g.m-2 The average height, basal diameter, main reot length, latera root number, fresh weight and dry weight of the seedlings were 38.6 cm, 1.05 cm, 16.7 cm, 29. 7, 103.9 g, 30.78 g, which were 111% .144% ,132%,182% ,149% , 148% higher than the controls.
出处
《吉林林业科技》
2012年第3期9-11,18,共4页
Journal of Jilin Forestry Science and Technology
关键词
氮肥
黄檗
苗木质量
nitrogen fertilizer
Phe//odendron amurense
seedling quality
