根据两年来的试验研究和大面积实践应用，证明多效唑可有效地抑制花生主茎和侧枝的生长，促进荚果发育，提高产量。其调节生长的综合效应优于同类药物Ｂ９。多效唑经济有效的使用浓度为１００ＰＰｍ． Based on two years of experimental research and large-area practical application, PP333 can effectively inhibit the growth of main stems and collateral of peanut, promote pod development and increase yield. The combined effect of its regulation of growth is better than similar drugs B9. Paclobutrazol is cost-effective use of 100PPm.