地处黄淮流域中部的山东省六四农场经生产试验,证明在夏大豆上喷施多效唑对大豆植株各部营养器官均有一定抑制作用,以植株顶端生长部让最敏感,受抑制作用最大。给人明显的感观是:植株变矮、叶色浓绿,顶荚簇拥、封垄推迟,大大改善了通风透光条件。 在一般水肥条件下,在大豆上喷施30～300ppm多效唑,主茎顶部1～3节,节间长度比对照缩短 It is proved that spraying paclobutrazol on summer soybean has a certain inhibitory effect on the vegetative organs of the soybean plants, and the growth of the top of the plant is the most sensitive and the most inhibited. Obvious people’s perception is: plant shorter, dark green leaves, pod crowded, Feng ridge postponed, greatly improving the ventilation and light conditions. In the general conditions of water and fertilizer, spraying soybean 30 ~ 300ppm paclobutrazol, the top of the main stem 1 to 3, internode length shorter than the control