China considers buying U.S. farm products
silks growing from corn ears
person with pocketknife points to missing corn plant in row
corn plant up close
Aerial view of field of young corn.
Two hands reaching out to shake with world map in background.
ear of corn, beaker, ethanol plant
Dave Nanda counts corn plants in field
cornfield at V7 growth stage
Young small corn plant seedlings in soil, macro shot with selective focus