Corn Growth and Development
Emergence and Early Seedling Establishment Issues
Early planted corn (early April) had good emergence conditions for establishing excellent stands. However, for corn planted the last 1/3 of April it’s a different story. Seven of the last eleven days of April had 4” soil temperatures averaging below 50 degrees. Plus several episodes of cold rain, and in some cases flooding rain, subjected the emerging corn to difficult conditions. Early May continued wet, but warm temperatures aided emergence. Warm and dry conditions followed.
Early Corn Development
When corn germinates but fails to emerge and leafs out underground, you are usually looking at a failure of the coleoptile. There are several common causes for leafing out underground.
Mid-Season Corn Development
Here, we continue the three-part series with a look at the growth and development that occurs in the plant from the third-leaf stage (V-3) to tasseling. We've included helpful information on timing your post-planting operations to minimize plant stress.
Late-Season Corn Development
Here, we continue the three-part series with a look at the critical reproductive stages that must occur to put grain in the bin. We'll begin with a review of the growth stages.
Grain Fill Stages in Corn
The corn crop is progressing through the grain fill stages of development. During this time, the corn plant switches nearly all of its resources to filling kernels. Plant health is critical during grain fill.