为摸清玉米健壮素和增产菌对提高玉米单产的作用,同时也为大面积推广使用提供科学依据,我们在祥云县前所乡进行了三种处理的对比试验。 In order to find out the role of corn hormone and yield-increasing bacteria in improving corn yield, and also provide a scientific basis for popularization and utilization of large area, we conducted a comparative experiment of three treatments in the former township of Xiangyun County.