在春保护地黄瓜开花时，用ＢＮ－２的２５０倍或５００倍稀释液涂抹黄瓜子房，１９９７年１９９８年两年的试验结果表明：ＢＮ－２可保证黄瓜座瓜率达到１００％，而对照只有７４％或８８％。１９９７年比对照提高单瓜重２８．６％或２５．３％；１９９８年提高１５８％或１２２％。两浓度均能明显增加瓜条的粗度和长度，１９９８年分别增加６０％和５８％。１９９７年两浓度分别提高单株产量６６．９％和６６．７％。在果实的对数生长期，处理的生长速度约为对照的２倍。 Cucumber ovary was painted with 250-fold or 500-fold dilution of BN-2 during the flowering of spring cucumber. The results of two years in 1997 and 1997 showed that BN-2 could ensure that cucumber melon rate was 100% Control is only 74% or 88%. In 1997, 28.6% or 25.3% of the melons were raised compared with the control, and 158% or 122% in 1998. Both concentrations can significantly increase the thickness and length of the strips, an increase of 60% and 58% respectively in 1998. In 1997, the two concentrations increased the yield of single plant by 66.9% and 66.7% respectively. In the logarithmic growth phase of fruit, the growth rate of treatment was about twice that of the control.