前言B_9是一种植物生长调节剂,具有良好的内吸、传导性能。近几年来,通过试验已逐渐为花生产区所重视,并开始应用到培创花生高产的实践中去。试用的结果证明,只要浓度、喷药时期选择得当,对某些品种,因肥水充足所引起的营养失调、植株徒长、倒伏,能够起到良好的控制作用.但是,对喷施B_9后的种子有无残效,是否适宜继续作种的问题尚不明确。为此,我所于1976年春,从山东省花生研究所引进少量1975年喷药区的种子进行试验,秋后的产量结果是:始花期喷5,000PPM与盛花期喷5,000PPM小区产的种子,播后产量分别比对照区增产9.26％与25.14%,平均增产17.20%,同时,花生研究所也报导用3,000PPM——5,000 PPM的浓度,盛花期喷过的花生种子,播后增 Introduction B_9 is a plant growth regulator with good internal absorption and conductivity. In recent years, through the test has gradually been valued for the peanut production area, and began to be applied to cultivate peanut high yield practice. Trial results show that, as long as the concentration and spraying time properly selected for some varieties, due to adequate nutrition caused by fertilizer imbalance, plant growth and lodging, can play a good control.However, spraying B_9 seeds Whether the residual effect, whether it is appropriate to continue planting the issue is not yet clear. To this end, in the spring of 1976, I introduced a small amount of seeds from the 1975 Peanut Research Institute in Shandong Province to the spraying area in 1975. The yield after autumn was as follows: 5,000PPM at the initial flowering stage and 5,000PPM at the full flowering stage. After sowing, yields increased by 9.26% and 25.14% respectively compared with the control plots, with an average increase of 17.20%. Meanwhile, the Institute of Peanut also reported that peanut seeds sprayed at the full-flowering stage at a concentration of 3,000ppm-5,000ppm