Soybean seeding rate doesn’t need to be adjusted until the last week of May/first half of June. If planting the first half of June, adjust seeding rate to 200,000-225,000 seeds/acre. If planting during the second half of June, 225,000-250,000 seeds/acre is recommended. Results from a plant date/seeding rate study conducted in Wood County last year indicates that soybean yield was similar regardless of seeding rate when planted April 25 and May 11. By May 31, soybean yield was significantly greater when 225,000 seeds/acre were planted compared to 125,000 seeds per acre (see graph). If planting late, 7.5-inch row spacing is recommended to facilitate canopy closure.

 

For a seeding rate calculator, as well as an input breakeven calculator, download the Extreme Beans app!