Abstract:

In order to accelerate Ophiopogon 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 growth rate, leaf out rate, chlorophyll content, renascent root number and root activity, it was showed that Ophiopogon japonicus can grow normally only with suitable NPK mixture ratio, the treatments of N2P2K1 and N2P2K2 can regulate belowground and overground biomass allocation better, accelerate the plants fast growth. It was the best for growth of Ophiopogon japonicus compared with other treatments that N, P2O5, K2O should be mixed according to the ratio 7:3:(8~8.5).