Grass seed, cool season plantpop 1902.7849852966615 dmaxshoot 1 cbaflag 0 tgtyield 1200 cbafact 1 cyrafact 1 hyldflag 1 hyldunits lbs/ac hyldwater 0 hyconfact 8930 idc 6 grf 0.8 ck 0.69 hui0 0.9 hmx 1 growdepth 0.0050 rdmx 2 tbas 1.6666666666666665 topt 21.11111111111111 thudf 1 dtm 120 thum 1833.3333333333335 frsx1 -5 frsx2 -15 frsy1 0.0050 frsy2 0.05 verndel 0.04 bceff 10 a_lf 0.023 b_lf 0.975 c_lf 0.6 d_lf -0.08 a_rp -0.024 b_rp 0.9911 c_rp 0.8 d_rp 0.08 a_ht 0.45 b_ht -0.095 ssaa 3.9 ssab 1 sla 30 huie 0.05 transf 0 diammax 0.3 storeinit 7.9378586 mshoot 110 leafstem 0.6 fshoot 0.0070 leaf2stor 0 stem2stor 0.1 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 covfact 5.227942 resevapa -1.20379 resevapb 0.604887 yield_coefficient 5.312 residue_intercept 0 regrow_location 0 noparam3 0.0 noparam2 0.0 noparam1 0.0 crop_notes This record has been completely revised. It has been calibrated to simulate Blue grass seed planted Aug to Late Sept in three counties in the PNW, Umatilla, OR, Benton, WA, and Adams, WA. It will give reasonable fall growth after planting in those counties. Issues with unpredictable re-growth and low establishment grow were corrected. There is still a problem with the Res to Grain ratios. Users will see high seed yield. DO NOT try to hand calibrate down to the 1000 lbs/ac average seed yield for the PNW. Hand calibration (adjusting the biomass adjustment factor) can be done to get the needed fall growth. This crop should only be grown in the northern cool regions of the US. Dr. Fred Fox from the USDA ARS in Manhattan, KS has made most of the changes to the file. MAS 3-29-12. crop_devnotes Enter dev notes here.