摘要
对B、Zn和Mn三种微肥在串叶松香草优质高产中的应用进行了为期三年的研究。研究结果表明:B、Zn和Mn三种微肥在一定浓度下能够促进串叶松香草的光合作用,提高其饲草产量,其中600×10-6的B肥能够使叶面积指数(LAI)和叶绿素含量分别增加7.03%和增加7.23%,牧草产量增加8.42%;400×10-6的Mn肥能够使LAI和牧草产量分别增加6.25%和6.07%;Zn肥的有效浓度为400×10-6,可使茎粗增加8.96%,茎叶比增加5.03%。三种微肥对株高没有明显影响。
The comprehensive application of B,Zn,Mn fertilizers to cupplant production was studied based on Henan soil and climate conditions.The results showed that B,Zn,Mn fertilizers could promote cupplant growth,enforced resistence and enhance forage yield under certain concentrations.Of three trace element fertilizers,B fertilizer could increase leaf area index (LAI),chlorophyl content and forage yield by 7.03%,7.23% and 8.42% respectively in the concentration of 600×10^(-6);400ppm was most suitable for Mn fertilizers which increased LAI by 6.25% and forage yield by 6.07%, Zn fertilizers can increase stem diameter by 8.96% and leaf-stem ratio by 5.03%. Three trace fertilizers haven't significant effects on the height of cupplant.
出处
《中国草地》
CSCD
2004年第5期75-78,共4页
Grassland of China
基金
河南省科技攻关项目(0124040058)
关键词
微肥
串叶松香草
应用
Trace element fertilizer
Cupplant
Application
