不同施肥处理对春石解生长特性和矿物质含量的影响

研究了花多多1号、奥绿肥(13-14-13)、尿素、花多多9号等施肥处理及母株剪除与否对杂交后代春石解001秋芽和春芽生长的影响结果表明.4-6月为春石斛001的生长旺盛期,9-10月为假磷茎成熟期.高浓度氮肥施用(T2)不利于春石斛的生长,尤其是假鳞茎的横向生长.假鳞茎茎节瘦小,并且严重降低了Ca,Mg的吸收水平.其他处理对秋芽生长增量的影响不显著.但对春芽生长增M的影响存在显著差异.其中以花多多1号结合花多多9号(T3)或奥绿肥(T1)处理效果最佳,矿物质吸收比较均衡不剪除母株条件下,新芽生长旺盛期长势良好,但在生长后期,植株长势变差,假鳞茎出现徒长现象,茎节变得瘦弱,植物全Ca的吸收受到抑制.

Effects of different fertilizer treatments on the growth characters and mineral contents of Nobile-type Dendrobium

The vegetation growth and mineral contents of Nobile-type Dendrobium have been studied with five kinds of fertilizer treatments.The results indicated that the vigorous growth period of Nobile-type Dendrobium was from April to July and the mature period of Nobile-type Dendrobium was from September to October.The plants did not grow good,and there was a significant decrease of the contents of leaf Ga and Mg under nitrogen at higher dose(Treatment 2).No significant differences were observed in the vegetation g...