不同施肥处理对红车轴草生长发育的影响

Effect of Fertilization on Growth and Development of Red Clover

[目的]探讨不同肥料配施对红车轴草生长发育的影响。[方法]以从美国引进的红车轴草Agivasion为供试品种,在大田条件下设置不施肥、单施N、NP配施和NPK配施4个处理,研究不同施肥处理对红车轴草生长发育的影响。[结果]施肥促进了红车轴草的生长发育,如:株高增加,尤以NP配施的促进作用最大;促发分枝,以NPK配施的促进效应最好;促进根颈增粗,以NP配施、NPK配施的效应较好。施肥在0.01水平上极显著促进红车轴草的茎、叶干物质积累和单株产量增长,促进效应以NPK配施>NP配施≈单施N>>CK,各施肥处理之间单株产量差异不显著。[结论]合理施肥可促进红车轴草的生长发育。

[Objective] To investigate the effects of fertilization on growth and development of red clover.[Method] American red clover ＂Agivasion＂ was used as tested materials.In field,four treatments were used,including no fertilization（CK）,application with N fertilizer,application with NP fertilizer,and application with NPK fertilizer.And the effects of fertilization on growth and development of red clover were analyzed.[Result] After fertilization,plant height was increased,particularly in application with NP fertilizer.Branching was promoted,particularly in application with NPK fertilizer.Rhizome became thicker,particularly in application with NP or NPK fertilizer.The fertilization promoted accumulation of dry matter in stems and leaves and increased yield per plant significantly at the 0.01 level.This promoting effect became weaker in such order：NPK fertilizer NP fertilizer ≈ N fertilizer CK.[Conclusion] Rational fertilization can promote growth and development of red clover.