Tips for Growing Sweet Corn

Tips for Growing Sweet Corn

Sweet Corn:

  • When a field has ears where ~95% have 1” of silk sticking out, you say the field is at “full silk”; which means that we are 18 days out from harvesting that field
  • Corn is self pollinated; the tassel drops pollen which falls onto the silk 
  • Always plant white corn one half a mile away or two weeks after yellow or bicolor to prevent cross pollination (ie. Causing white corn to have mixed yellow kernels) –same applies for GMO and non GMO corn; plant in fields far enough apart, or make sure the two week pollination windows are different
  • You can look at the silks under a magnifying glass to check to see if they have been fully pollinated.  If the silk has not been pollinated, then it will look like a split end of a piece of hair. Once that silk is received one grain of pollen, then it closes that split to keep from being double pollinated.
  • As corn is silking, we need to start taping off the tassels to separate the different plantings and different varieties (normally starts the 3rd wk of May); Use three different rolls of marking tape, one for each: white, bicolor, and yellow
  • When analyzing our corn yield data, we need to sort by variety in order of the variety name (names first, then the variety numbers in ascending order); next, list all of the yields/variety per acre for each planting; finally take the average of the yields/ acre for each variety and rank them from best to worst.
Direct seeding sweet corn between these rye strips, we were able to provide the young corn seedlings protection from wind damage.

The rye was sprayed with Poast to kill it when it was about 2-3 feet tall. Now as the rye dies, it stands tall to protect the little corn until it grows tall enough to make it.