摘要
为探究氮磷钾配施对红椿生长的影响,采用盆栽试验的方式,设置不施肥组、单施氮、单施磷、单施钾、氮磷配施、氮钾配施、磷钾配施、氮磷钾配施8个处理组,以测定红椿生长指标包括胸径和树高等.结果显示,氮磷钾配施可以显著促进红椿的生长,且ζ(N∶P∶K)=2∶1∶1配施处理方式对红椿的生长效果最佳.
Abstract
In order to investigate the effects of combined application of nitrogen,phosphorus and potassium on the growth of Toona ciliata,eight treatment groups were set up by pot experiment,including no fertilization group,single application of nitrogen,single application of phosphorus,single application of potassium,combined application of nitrogen and phosphorus,combined application of phosphorus and potassium,and combined application of nitrogen,phosphorus and potassium on the growth of Toona ciliata.The results showed that the combined application of N,P and K could significantly promote the growth of Toona ciliata,and ζ(N∶P∶K)=2∶1∶1 was the best for the growth of Toona ciliata.