The formula to calculate growing degree units is:
\[ \text{GDU} = \left( \frac{\text{DmaxT} + \text{DminT}}{2} \right) - 50 \]
Where:
GDU, also denoted GDD sometimes, is short for growing degree units. A growing degree unit is a measurement of the amount of heat corn needs to reach certain points in its growth cycle. This can be applied to other plants and crops, but corn is the original and most common.
Let's assume the following values:
Using the formula:
\[ \text{GDU} = \left( \frac{85 + 60}{2} \right) - 50 = \left( \frac{145}{2} \right) - 50 = 72.5 - 50 = 22.5 \]
The growing degree units are 22.5.
