AgriMet Crop Coefficients: Grass Hay (Peak)
|
Growth
Stage (%) |
Crop
Coefficient |
Growth Stage Indicators
|
| 0 | 0.60 | Break Dormancy |
| 10 | 0.69 | |
| 20 | 0.78 | |
| 30 | 0.85 | |
| 40 | 0.88 | |
| 50 | 0.92 | |
| 60 | 0.95 | Full Canopy |
| 70 | 0.96 | |
| 80 | 0.96 | |
| 90 | 0.96 | |
| 100 | 0.96 | Heading |
| 110 | 0.95 | |
| 120 | 0.93 | |
| 130 | 0.92 | |
| 140 | 0.90 | |
| 150 | 0.89 | |
| 160 | 0.87 | |
| 170 | 0.86 | |
| 180 | 0.84 | |
| 190 | 0.83 | |
| 200 | 0.81 | Killing Frost |
Curve developed by ARS research on lysimeter plots, Kimberly, Idaho 1990.
Note: Grass Hay-Peak is the ET for full cover fescue grass. It represents the peak daily consumptive use for grass regrown to full cover after any harvests.
See About Crop Coefficients for more information on AgriMet Crop Coefficients.
