Output from uspest.org/wea crop degree-day/phenology model program:
Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================
Model species/general links: Barley
Type: crop
Model source/other links: Miller MSU, Miller et al. 2001
Calculation method: simp avg/grow
Lower threshold: 32 degrees Fahrenheit
Setting upper threshold to: 130 F (default)
Directions for starting/BIOFIX: planting date
Starting/BIOFIX date: 4 1
No ending date, set to: default date 12 31
Model validation status: partly validated
Region of known use: Montana
==============================EVENTS TABLE================================
1. 260 DD after biofix 0.9-germination: coleoptyle breaks through soil
2. 310 DD after biofix 1.1-1st leaf unfolds
3. 600 DD after biofix 2.1-1st tiller visible
4. 870 DD after biofix 3.1-1st node detectable
5. 1170 DD after biofix 4.1-flag leaf sheath extended
6. 1440 DD after biofix 5.1-tip of inflor. emerged, 1st spiklet just visible
7. 1740 DD after biofix 6.1-1st anthers of flowers visible
8. 2010 DD after biofix 7.1-1st grains reach half of final size
9. 2420 DD after biofix 8.5-soft dough stage grain development
10. 2620 DD after biofix 9.2-grains ripe and hard
==============================MODEL OUTPUT================================
Weather station: 1000 none selected
mn day max min precip DD32 CUMDD32 event
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