Allow for the increase in yield potential. The concept of applying fertilizer in accordance with expected crop yield is built into the University of Missouri's soil test recommendations. You should uniformly broadcast and incorporate fertilizer before planting. As with row-planted soybeans, you can generally expect highest yields from drilled plantings made early in the season. As you delay, total yield may be less than from plantings made earlier in the season.
Varieties respond differently to drilled seeding.
Tests in central and southeastern Missouri show that the highest-yielding varieties in rows also produce the highest yields in narrow rows. These varieties do not, however, produce the greatest response to drilling. Copyright 1999 University of Missouri. Published by University Extension , University of Missouri-Columbia. Ronald J. Turner, Director, Cooperative Extension Service, University of Missouri and Lincoln University, Columbia, Missouri 65211.