黑色地膜覆盖对桔梗、轮叶党参地土壤主要环境因子的影响  

Effects of black film mulching on main environmental factors of soil planted Platycodon grandiflorum(Jacq)A.DC and Codonposis Lanceolata Bentn et Hook.f Field

作　　者：崔锡花[1] 朝东贤 蔡春鹏[3] 杜晓军[1] 吴明根 

机构地区：[1]延边大学农学院,吉林龙井133400 [2]安图县农业局,吉林安图133600 [3]延边大学农学学报编辑部,吉林延吉133000 [4]不详

出　　处：《延边大学农学学报》2006年第2期77-82,87,共7页Agricultural Science Journal of Yanbian University

摘　　要：黑色地膜覆盖可在早期提高土壤0～5cm层的日平均地温3℃左右，使土壤水分变化平稳、保水性好，提高速效养分N、P、K的利用率；黑色地膜覆盖控草效果可达到99％，土壤主要环境因子的变化有利于桔梗和轮叶党参的保苗和早生快发．Black film mulching could raise the average daily soil temperature in plough layers of 0-5 cm by 3℃ in early stage, which could make water change steadily, raise soil capacity of water conservation and using efficiency of soil available N, P and K. The effects of black film mulching on controlling weeds could reach 99 %. The changes of main environmental factors of soil were advantageous to keeping full stand of seedlings and accelerating the seeds gemination of Platycodon grandiflorum （Jacq）A. DC and Codonposis Lanceolata Bentn et Hook . f .

关 键 词：桔梗 轮叶党参 黑色地膜覆盖 土壤环境因子 

分 类 号：S567.53[农业科学—中草药栽培]