Soybean plant damage from rolling.
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A
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.
