Matt Hutcheson, CCA, Product Manager, Seed Consultants, Inc.
A great deal of field work has been done over the past few weeks. As corn is being planted across the eastern Corn Belt and another growing season has begun, it will be time to walk and scout fields. Once corn is planted, the next critical event will be uniform emergence. Many producers have read or heard that it takes about 100 to 120 Growing Degree Days (GDDs) for corn to emerge, but what does that mean?
A GDD (also referred to as Growing Degree Units) is a calculation based on daily high and low temperatures. This calculation helps to predict stages of growth in corn based on an accumulation of heat units or GDDs. The basic formula for calculating GDDs is: add the daily maximum temperature to the daily minimum, divide by 2, then subtract 50. The value calculated by this formula is the total number of GDDs accumulated in one day.… Continue readingRead More »