通过铁肥在大豆上的叶面喷施效果研究表明,铁肥对大豆营养生长和生殖生长都有一定的影响,可以降低结荚高度、增加有效分枝、提高大豆百粒重,对大豆的抗逆性和生育期没有影响.以0.3kg/666.7m2增产效果最大,较对照增产4.14%,增产不显著. The study on the effect of foliar spraying on soybean by iron fertilizer showed that iron fertilizer had some effects on the vegetative and reproductive growth of soybean, which could reduce the pod height, increase the effective branching, increase the 100-grain weight of soybean, The resistance and growth period had no effect.With the increase of 0.3kg / 666.7m2, the yield was the highest, yielding 4.14% more than that of the control, yield increase was not significant.