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).
出处
《中国农学通报》
CSCD
北大核心
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"
关键词
沿阶草
NPK配比
生长速率
Ophiopogon japonicus
combined application of nitrogen
phosphorus
potassium
growth rate