Alfalfa-Grass, cool season, hay
plantpop
688.0
dmaxshoot
1.0
cbaflag
0
tgtyield
1.5
cbafact
1
cyrafact
1.0
hyldflag
2
hyldunits
ton/ac
hyldwater
15.0
hyconfact
4.465
idc
3
grf
1.0
ck
0.69
hui0
0.9
hmx
1.0
growdepth
0.01
rdmx
2.0
tbas
3.0
topt
30.0
thudf
1
dtm
120
thum
1800.0
frsx1
-5.0
frsx2
-9.444445
frsy1
0.01
frsy2
0.95
verndel
0.0
bceff
25
a_lf
0.023
b_lf
0.55
c_lf
0.63
d_lf
-0.061
a_rp
-0.024
b_rp
0.9911
c_rp
0.6435
d_rp
0.0494
a_ht
0.5
b_ht
-0.09
ssaa
0.16108
ssab
0.5981
sla
30
huie
0.05
transf
0
diammax
0.3
storeinit
17.009697
mshoot
110.0
leafstem
0.6
fshoot
0.013
leaf2stor
0.2
stem2stor
0.2
stor2stor
0.1
rbc
2
standdk
0.0536
surfdk
0.0536
burieddk
0.0536
rootdk
0.0536
stemnodk
0.2
stemdia
0.0020
thrddys
20.0
covfact
5.227942
resevapa
-1.20379
resevapb
0.604887
yield_coefficient
0.0
residue_intercept
0.0
regrow_location
0.0
noparam3
0.0
noparam2
0.0
noparam1
0.0
crop_notes
Mixed Perennial, hay or forage production, example alfalfa with cool season grass,
Suggest harvest: Harvest, hay, grass or legume,
crop_devnotes
Archive:
See Alfalfa, hay notes. This record was cloned from the Alfalfa file, and some of the factors changed to represent dryland alfalfa
Yield is from and OR state crop guide and the growth trials were from MT. Yield is set at 1.5 t/ac.
Calibration of yield must be done manually by adding up the cuttings each year and averaging the years.
If too high or too low use the biomass adjument factor to reduce or increase the forage produced.
Grass is not considered in this file. MAS 8-7-08
The energy eff was adjusted to give good growth for a dryland yield in Weston Co, WY. This was
certified crop run. MAS 12/18/08
Changed the cover to mass value to match Fosters finest stem curve, Small Grain and Alfalfa. Reference pg. 179 Ag Handbook 703.
No crop has a larger number (finer stems) than .000586. This matches RUSLE2. MAS 12-21-10
The biomass adjustment factor has been set to 1.0 from the 0.6 that Fred had. The biomass conversion eff factor was moved from 30 to 24 to match yield
of the standard alfalfa run in Moses Lake, WA and now in Yuma, AZ. The record runs a little under the 6 ton/ac yield in ML, and somewhat over the 10 t/ac for
Yuma. The seed weight was increased from 0.00007 to 0.0006 to increase the intial growth of the fall planting.There is about 1500 lbs of growth going into
winter in WA and about 2400 lbs/ac at the first harvest in AZ. Yuma will need to lower the Biomass Adjustment factor to 0.8 to get the 12 t/ac yield needed.
MAS 7-6-11