关键词: 海拔, 播种期, 播种量, 三岛柴胡（Bupleurum falcatum L.）

Abstract: The experiment was conducted to compare the effects of different treatments on growth and development of Bupleurum falcatum L. and provide a basis for the standardized cultivation of B. falcatum L.. Using B. falcatum as experimental material, different altitudes, sowing dates and sowing amounts were set, the phenological stage was observed, and the relevant growth indexes were determined. The results showed that the seedling stage, shoot elongation stage, budding stage, flowering stage and fruiting stage of B. falcatum were correspondingly delayed with the increase of altitude. The plant height was the highest at 600 meters above sea level, and there was no significant difference in main root length, root thickness, single root weight, plot root yield and equivalent yield among different altitudes' treatments. The seedling stage, shoot elongation stage, budding stage, flowering stage and fruiting stage of B. falcatum were correspondingly delayed when sowing on February 23rd, but there were no significant differences in main root length, root thickness, single root weight, plot root yield and equivalent yield between two sowing dates' treatments. With the increase of seeding amount, main root length and single root weight showed a decreasing trend, but there was no significant difference in root thickness and plot root yield. The altitude below 1 100 meters was suitable for the growth of B. falcatum. It could be sown in November and February, and the optimum sowing amount was 15.0 kg/hm², under which the comprehensive economic benefits were better.

Key words: altitude, sowing date, sowing amount, Bupleurum falcatum L.