土壤耕层深度和施肥深度对桔梗根部主要农艺性状的影响  

Effect of the Soil Topsoil Depth and Fertilization Depth on Root Main Agronomic Characters of Platycodon grandiflornu

作　　者：李美善[1] 严一字[1] 朴锦[1] 朴雪梅[1] 吴基日[1] 

机构地区：[1]延边大学农学院,吉林龙井133400

出　　处：《安徽农业科学》2010年第8期4146-4147,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]探索优质高产的桔梗栽培方法。[方法]在15、20、30、40cm的耕深和不施肥、全层施肥、深层施肥(30～40cm)的3个施肥深度条件下,调查桔梗根的主要农艺性状。[结果]在耕深试验中,30cm耕深条件下的主根长最长、根粗最粗、单根鲜重最重,但侧根数也最多;施肥效果为深层施肥的效果好于全层施肥和不施肥。[结论]试验结果对山区、半山区桔梗栽培体系的建立有一定的参考价值。[Objective] The aim was to explore cultivation method of quality and high production for Platycodon grandiflornu.[Method] Compared root main agronomic characters under topsoil depth of 15,20,30,40 cm and no fertilization,full-thickness fertilization,deep fertilization （30-40 cm）.[Result] On experiment of topsoil depth,the main root length in 30 cm depth was the longest,root diameter was the widest,single root fresh weight was the heaviest,however,the lateral root also had the largest number.In the fertilization,the effects of deep fertilization was better than full-thickness fertilization and no fertilization.[Conclusion] The results of the experiment has certain reference value for establishment of mountains,mid-levels P.grandiflornu cultivation system.

关 键 词：桔梗 耕层深度 施肥深度 根部性状 

分 类 号：S567[农业科学—中草药栽培]