Mychal Wilmes recalls plowing late into a cold November night on a WC Allis Chalmers that bucked through the field as the plow tangled with corn stalks.

Field demonstrations will feature horse and tractor plowing, corn stalk chopping and disking and preparing the field for the planting of wheat.

AMES, Iowa – Filling abandoned oil and gas wells with bio-oil made from plant-based leftovers like corn stalks and forest ...