Agriculture - A John Deere combine (model 9670 STS) harvests mature grain corn in late afternoon Autumn light / Southern Iowa, USA.

Agriculture - Mid growth pre-tassel stage grain corn field in early morning light / Central Iowa, USA.

Agriculture - Heavy late season rains have flooded this mature harvest ready grain corn field / Central Iowa, USA.

Agriculture - A John Deere combine (model 9670 STS) harvests mature grain corn in late afternoon Autumn light / Southern Iowa, USA.

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

Agriculture - Early growth soybean field in late afternoon light. Minimum tillage shows last season's corn stubble between rows / Central Iowa, USA.

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

Agriculture - A farmer inspects his mature harvest ready grain corn field that has been flooded by heavy late season rains / Central Iowa, USA.

Agriculture - Rolling mid growth no-till mid season soybean field in late afternoon light with corn stubble showing between the rows / Central Iowa, USA.

Agriculture - Side view of a stand of mature tasseled grain corn plants with fully formed ears / Central Iowa, USA.

Agriculture - Mature stand of grain corn at harvest showing large ears on plants / Northeast Iowa, USA.

Agriculture - Contour strips of mid growth tasseled Summer grain corn and windrowed alfalfa in early morning light / Northeast 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, rolling grain corn field in afternoon autumn light (Sequence 2 of 3) / near Ellsworth, Wisconsin, USA.

Agriculture - Closeup of grain corn tassels showing the detail of the anthers / Mississippi, USA.

Agriculture - Closeup of grain a corn tassel showing the detail of the anthers / Mississippi, USA.

Agriculture - Closeup of grain a corn tassel showing the detail of the anthers / Mississippi, USA.

Agriculture - Healthy mature sugar beet field ready for harvest in late afternoon light with a grain elevator and grain bins in the distance / near Amenia, Red River Valley, North Dakota, USA.

Agriculture - Rows of mid growth soybeans in late afternoon sunlight / near Truman, Minnesota, USA.

Agriculture - A farmer examines tasseled corn plants in a grain corn field in late afternoon light / Iowa, USA.