Abstract
ABSTRACT A vibratory furrow opening tool was designed for use with a minimum tillage row crop planter system. System performance was evaluated in field tests where corn was planted in chemically killed sod. The effective-ness of the vibratory tool was compared to a fluted coul-ter opener based upon measurements of energy input, clod size distribution, change in soil bulk density, and seed emergence. The vibratory tool produced more soil breakup and yielded better plant stands. However, where no additional ballast was needed to assure coulter pene-tration, the fluted coulter system generally required less power input than the vibratory system.
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