Agriculture - A farmer examines his healthy mid growth soybean field in midsummer / Central Iowa, USA.

Agriculture - A mid growth soybean field (r. ) grows next to a mature field of oats (l. ) with a storm cloud above / Central Iowa, USA.

Agriculture - A combine harvests grain corn in late afternoon light with silos in the background / Central Iowa, USA.

Agriculture - Closeup of mature, harvest ready, soybean pods, in late afternoon light against a blue sky / Iowa, USA.

Agriculture - A farmer examines his healthy mid growth soybean field in midsummer while holding a soybean plant / Central Iowa, USA.

Agriculture - A grain truck loaded with freshly harvested grain corn leaves the field headed for a grain storage elevator / Central Iowa, USA.

Agriculture - A farmer silhouetted by the setting sun inspects an ear of grain corn during harvest season / Central Iowa, USA.

Summer clouds pass over a large soybean field and grain corn field at mid-season growth in central Iowa; Iowa, United States of America

Agriculture - Closeup of an early growth soybean seedling at the two-leaf stage emerging from the soil / Central Iowa, USA.

Agriculture - Closeup of an early growth soybean seedling at the 4-6 leaf stage emerging from the soil / Central Iowa, USA.

A farmer looks out across his mid-season soybean field; Iowa, United States of America

A farmer looks out across his mid-season soybean field in early summer; Iowa, United States of America

Agriculture - Large field of mature late season soybeans / Central Iowa, USA.