不同定植密度对红芪生长的影响  

Effect of Different Planting Density on the Growth of Radix Hedysari

作　　者：何淑玲[1] 马令法[2] 常毓位[1] 

机构地区：[1]甘肃民族师范学院,甘肃合作730070 [2]黔西南民族职业技术学院,贵州兴义730030

出　　处：《安徽农业科学》2010年第34期19299-19301,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]研究红芪在不同定植密度下的生长规律,以期为该地区红芪的合理密植提供理论依据。[方法]采用单因素随机区组设计,研究在不同定植密度下,红芪各生长指标的变化。[结果]随着定植密度的增大(株距的减小),株高降低,根径减小,主根长缩短,主茎分枝数减小;在一定株距范围内,红芪干物质积累量及产量随着定植密度增大而减小。[结论]该地区红芪最适宜移栽株距为25 cm(15万株/hm2)。[Objective]To study the growth changes of radix hedysari under different planting density and provide theoretical evidence for the rational planting of it in this district.[Method]By employing single factor randomized block design,each growth indices of radix hedysari were determined under different plangting density.[Result]A long with the increase of planting density（decline of row spacing）,the plant height,root diameter,root length and branching amount of radix hedysari assumed decrease trend,and the dry matter accumulation amount and yield of it also decreased.[Conclusion]The optimal planting density of radix hedysari in this district is 150 thousand plants/hm2,that is,row spacing of 25 cm.

关 键 词：红芪 定植密度 生长规律 

分 类 号：S567[农业科学—中草药栽培]