Easton is helping his father do an emergence test.
Uniform emergence is one key to maximizing corn yields. To conduct the test, the Coes put a colored flag beside each emerged plant in a 20 foot row of their crop. They return in 12 hours and put a different colored flag by any newly emerged plants. The process is repeated every 12 hours and with a different colored flag until all the plants in the row section have emerged.
This test helps to show how uniformly corn is emerging, which is the first step to achieving maximum yields.