Agriculture - A farmer stands in his large no-till grain corn field inspecting his crop / Iowa, USA.

Agriculture - A farmer holds ears of mature, harvest ready grain corn and his work gloves while inspecting his crop in Autumn / Iowa, USA.

Agriculture - Mature grain corn kernels piled up in a grain wagon during the Autumn harvest / Central Iowa, USA.

Agriculture - Silage corn ready for harvest / Iowa, USA.

Agriculture - Large field of healthy early growth grain corn plants / Central Iowa, USA.

Agriculture - Large field of healthy early growth grain corn plants / Central Iowa, USA.

Agriculture - Large, rolling mid growth no-till grain corn field / Central Iowa, USA.

Agriculture - Tassels on mature grain corn plant showing anthers (pollen sacks) / Iowa, USA.

Agriculture - A farmer stands next to his mature grain corn crop inspecting a harvest ready ear of corn / Iowa, USA.

Agriculture - Panoramic view of a field newly planted to grain corn / Central Iowa, USA.

Agriculture - A farmer walks through his early growth grain corn field several weeks after planting, inspecting the young crop / Central Iowa, USA.

Agriculture - A farmer walks through his early growth grain corn field several weeks after planting, inspecting the young crop / Central Iowa, USA.

Agriculture - A John Deere combine harvests grain corn in Autumn while augering the harvested corn into a grain wagon

Agriculture - A combine harvests grain corn and unloads the corn into a grain wagon

Agriculture - Harvested grain corn field in Autumn, showing remaining corn stalks and residue / near Yazoo City, Mississippi, USA.

Agriculture - Harvested grain corn field in Autumn, showing remaining corn stalks and residue / near Yazoo City, Mississippi, USA.

Agriculture - Mature, harvest ready, rolling grain corn field in afternoon autumn light (Sequence 2 of 3) / near Ellsworth, Wisconsin, USA.

Agriculture - Motion view of harvested grain corn kernels entering an auger at an ethanol plant / near Sioux City, Iowa, USA.

Agriculture - Mature, harvest ready, rolling grain corn field in late afternoon autumn light (Sequence 3 of 3) / near Ellsworth, Wisconsin, USA.

Agriculture - Mature harvest ready crop of grain sorghum (milo) / near Greenwood, Mississippi, USA.

Agriculture - Closeup of an ear of harvest ready grain corn on the stalk, with the husk pulled back / near Sioux City, Iowa, USA.

Agriculture - A John Deere combine harvests barley on steep hillside terrain / near Pullman, Palouse Region, Washington, USA.

Agriculture - Cross section of ear of mature grain corn showing kernel depth and milk line / Wisconsin, USA.

Agriculture - A combine harvests grain corn and unloads the corn into a grain wagon

Agriculture - A combine harvests a crop of grain corn in Autumn / Iowa, USA.