There was no significant interaction between seeding rate, soybean product, and planting date.
The impact of seeding rate followed the trend of previous research where average soybean yields steadily increased from 40K to 120K seeds/acre and then leveled off (Figure 1).
The 160K seeds/acre rate had the highest average yield with no increase in yield observed with the 200K or 240K seeds/acre rates (Figure 1).
The 2.3 MG soybean product had the highest average yield at 75.5 bu/acre while the 2.5 MG and 2.7 MG products yielded 72.1 and 74.4 bu/acre, respectively with an LSD (0.1) of 1.1.
No difference in yield was observed from planting date with each date having an average yield of 74 bu/acre.