B_(?),是一种新型植物生长调节剂。近年来,正定县权城公社农科站在花生上搞了多点试验和大面积示范,均取得了显著效果。一、控制营养生长。喷药5天后,叶色转为黑绿,20天后,分枝粗壮,比不喷的低10多公分,明显的缩短了节间。二、加速生殖生长。喷药对单株结果数影响不大,但饱果一般提高10%左右,单株果重增加20%左右。 B_ (?), Is a new plant growth regulator. In recent years, Zhengding County Quancheng commune agricultural station in Peanut on a number of trials and large-scale demonstration, have achieved remarkable results. First, control the growth of nutrition. After spraying for 5 days, the leaf color turned black and green. After 20 days, the branch was thick and ten centimeters lower than the non-spray, obviously shortening the internode. Second, accelerate reproductive growth. Spraying on the number of single plant results have little effect, but the full fruit generally increased by about 10%, a single fruit weight increased by about 20%.