矮生沿阶草适宜液肥配方的初步研究  

Studies on Nutrient Solution for Ophiopogon japonicus

作　　者：丁久玲[1] 俞禄生[1] 沈益新[2] 张蕾[3] 郑凯[1] 

机构地区：[1]江苏农林职业技术学院,江苏句容212400 [2]南京农业大学动物科技学院,南京210095 [3]陕西省西安植物园,西安710061

出　　处：《中国农学通报》2011年第6期112-116,共5页Chinese Agricultural Science Bulletin

基　　金：2007年度江苏省科技成果转化专项资金项目"常绿彩叶苗木新品种选育及组培快繁技术开发与推广"(BA2007100);2009年度江苏省农业科技自主创新资金项目(CX(09)608);2007年度高校科研成果产业化推进项目"江苏省室内净化与装饰植物工程技术研究开发中心"

摘　　要：为加速矮生沿阶草的繁殖和推广,通过N、P、K3因素不同配比施肥,研究不同NPK的配合施用对矮生沿阶草生长的影响。综合叶片伸长速率、展开速率、叶绿素含量、新根发生数量、根系活力等测定结果认为,NPK适当配比才能促进其正常生长,处理N2P2K1、N2P2K2能较好地调节矮生沿阶草地上、地下生物量分配,促进植株快速生长。适宜矮生沿阶草生长的专用肥配方为N、P2O5、K2O按照7:3(:8～8.5)配比。In order to accelerateOphiopogon japonicus ＇s growth and propagating rate,growth situation of Ophiopogon japonicus treated with 27 nutrient solutions containing different concentration of N,P,K was studied in pot trial. From the indexes of leaf elongation rate,leaf expanding rate,chlorophyll content,renascent root number and root activity,it was showed thatOphiopogon japonicus could grow normally only with suitable NPK mixture ratio,the treatments of N2P2K1 and N2P2K2 could regulate belowground and overground biomass allocation better,accelerate the plants fast growth. It was the best for growth ofOphiopogon japonicus compared with other treatments that N,P2O5,K2O should be mixed according to the ratio 7：3：（8-8.5）.

关 键 词：沿阶草 NPK配比 生长速率 

分 类 号：S682.39[农业科学—观赏园艺]