摘要
采用裂区试验设计,研究N肥不同追施处理对长白落叶松播种苗生长的影响。结果表明:施肥次数和施肥量分别对苗高和地径生长产生显著影响;间隔期为11 d的5次施肥处理对苗高生长具有显著影响,36.3 g.m-2的施肥量对地径的生长具有明显的促进作用;36.3 g.m-2处理对苗高和地径的施肥效率显著低于13.7 g.m-2处理和对照处理。
A study was conducted to determine the effect of varied additional fertilizing treatmens of N fertilizer on growth of Larix olgensis sowing seedlings with split-plot experiment design.Results show that fertilization times and amount of N fertilizer significantly affected the height growth of and basal diameter growth of sowing seedlings.Five applications with an interval of 11 days had a significant effect on height growth of seedlings.For fertilizing amount,application of 36.3 g·m-2 N stimulated the growth of basal diameter apparently.However,the fertilization efficiency of 36.3 g·m-2 N supply relevant to seedling height growth and basal diameter was lower than that of 13.7 g·m-2 N supply and the control.
出处
《吉林林业科技》
2011年第3期5-7,10,共4页
Journal of Jilin Forestry Science and Technology
关键词
长白落叶松
播种苗
施肥
苗木生长
Larix olgensis
fertilization
sowing seedling
seedling growth
