摘要
[目的]研究不同施氮量对皇竹草生物学性状及单株产量的影响。[方法]刈割后,测定不同氮施量的皇竹草生物学指标及单株鲜重。[结果]皇竹草的分蘖数、有效茎直径、叶片数、株高、节数及单株鲜重都随着施肥量的增加而明显提高。但是,当单穴施肥量超过40 g或45 g时,这些生物学性状会明显减少。[结论]45 g单穴施氮量为皇竹草最适生长肥料量,此时单株鲜重达到最大值,为640.73 g。
[Objective]The research aimed to study the effects of different nitrogen levels on the biological traits and yield per plant of Pennisetum hydrium.[Method] The biological indices and fresh weight per plant of Pennisetum hydrium at different nitrogen levels after cutting were measured.[Result] The tiller number,effective stem diameter,leaf number,plant height,node number and fresh weight per plant of P.hydrium were obviously enhanced with the increase of nitrogen level.When nitrogen application amount per pole was more than 40 g or 45 g,these biological characteristics were significantly reduced.[Conclusion] The optimum fertilizer amount for the growth of Pennisetum hydridum was nitrogen application amount per pole of 45 g and the fresh weight per plant reached its maximum（640.73 g）.
出处
《安徽农业科学》
CAS
2012年第33期16169-16170,共2页
Journal of Anhui Agricultural Sciences
关键词
皇竹草
性状
施氮量
Pennisetum hydridum
Traits
Nitrogen application amount
