Endres and Bob Henson
trial was conducted to determine the effect of timing of field rolling on soybean injury, stand, and
yield. The trial was conducted on Heimdal loam soil
with 3.4% organic matter. Experimental design was a randomized complete block
with four replications. RG200RR was solid-seeded (7-inch rows) on May 27. A
3000 lbs., 15-ft wide, 18-inch diameter, 3-point hitch mounted Bison roller was
used for field rolling during afternoons on a dry soil surface preemergence and during early emergence, cotyledon, and
first trifoliate soybean growth stages (Table). The trial was harvested with a
plot combine on October 1. Soybean plant injury increased as post-emergence
rolling was delayed. Soybean stand, lodging, and yield were generally similar
to the untreated check. Plant moisture
status (time of day, soil moisture content), location of plants in
ridges/furrows, presence of surface residue, speed of rolling, and other
factors may also influence plant tolerance to rolling.
Soybean plant damage from rolling.