A good thing to do right now is markdown when corn fields tassel, or more ideally when they silk. Usually silking occurs a couple of days after tasseling, but there have been recent situations were silking is either slightly premature or significantly delayed relative to tasseling. But by knowing your tassel (silk) date, you can begin to predict when a field will be ready for silage harvest.
Use the following in-season guidelines for predicting corn silage harvest date:
- Note hybrid maturity and planting date of fields intended for silage.
- Note tasseling (silking) date.
- Kernels will be at 50% kernel milk (R5.5) about 42 to 47 days after silking.
- Use a drydown rate of 0.5% per day to predict date when field will be ready for the storage structure.
- See http://www.uwex.edu/ces/ag/silagedrydown/