Planter or drill. Planters have traditionally done a better job of seed singulation and placement, increasing plant counts and stand uniformity. Growers using drills may need higher seeding rates to establish equally productive stands.
Seedling disease risk. Some regions have higher seedling disease risk due to soil types, weather patterns, and pathogen race shifts. Higher seeding rates are needed to establish target stands in areas or fields with a history of higher disease risk.
Seed treatment combination. Research shows that some seed treatments improve soybean stands by using additional active ingredients that combat seedling diseases. Your Pioneer sales professional can help identify the best seed treatments for your field.
Tillage / residue cover. No-till systems provide a less hospitable environment for soybean emergence due to colder soils, more residue, and possible seed placement / soil contact challenges.
White mold risk. In fields with a historically high risk of white mold, very high seeding rates are not recommended.