摘要
采用正交设计研究了N、P、K、Ca等营养元素对百里杜鹃花区马缨杜鹃花芽发育和花期的影响。结果表明:N、P、K、Ca各营养元素对花芽横径、花芽纵径、花朵直径无影响;而400mg/kg N5、0 mg/kg P2、00 mg/kg K5、0 mg/kg Ca组合对花芽纵径的影响最大;200 mg/kg N、200mg/kg P2、00 mg/kg K5、0 mg/kg Ca组合对花朵直径影响最大;400 mg/kg N、50 mg/kg P、200mg/kg K和50 mg/kg Ca组合能分别使始花期、末花期提前8 d和5 d。
Effects of different nutrient element level（N,P,K,Ca）on bud development and florescence of R.delavayi Franch in Baili Dujuan tourist attractions were studied with an orthogonal experimental design.The results showed that the effect of nitrogen（N）,phosphorus（P）,potassium（K）,calcium（Ca） on transverse diameter of flower buds,vertical diameter of flower buds,diameter of flower were not significant.The mixture of 400 mg/kg N,50 mg/kg P,200 mg/kg K,50 mg/kg Ca level promoted development of vertical diameter of flower buds.The mixture of 200 mg/kg N,200 mg/kg P,200 mg/kg K,50 mg/kg Ca level promoted development of diameter of flower.Initial flowering and end flowering were advanced 8 days and 5 days respectively when spayed the mixture of 400 mg/kg N,50 mg/kg P,200 mg/kg K,50 mg/kg Ca level.
出处
《北方园艺》
CAS
北大核心
2010年第21期84-86,共3页
Northern Horticulture
基金
贵州省重大科技攻关资助项目(黔科合重大专项字2007[6005])
国家农业成果转化资助项目(2007GB2F200289)
贵州省科技创新人才团队建设资助项目(黔科合人才团队[2009]4007号)
关键词
马缨杜鹃
发育
花期
营养元素组合
Rhododendron delavayi Franch
development
florescence
nutrient element level
