Alfalfa-Brome, released growing crop plantpop 688.0 dmaxshoot 1.0 cbaflag 0 tgtyield 6.5 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 24 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 425.2424 mshoot 425.2424 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 This crop record was cloned from the Alfalfa, released growing crop record. ARS and NRCS have worked to have this crop show some growth at the time Oats or Other ratoon crops are gown. MAS 121-26-07 Size ranges J.J. rquez-Ortiz, J.F.S. Lamb, L.D. Johnson, D.K. Barnes and R.E. Stucker, 1999, Heritability of crown traits in alfalfa, Crop Science, Vol 39, Issue 1 pgs. 38-43 Crown Depth (distance from the soil level to the top of the tap root) - 0.5cm to 5cm Crown width (just below the soil surface) - 2cm to 12cm or greater Number of crown stems - 2 to 10 or more Crown stem width - 2mm to 6mm or greater Number of crown buds - none to 12 or more D.K. Barnes, R.B. Pearce, G.E. Carlson, R.H. Hart, and C.H. Hanson. 1969. SPecific Leaf Weight Differences in Alfalfa Associated with Variety and Plant Age. Crop Science, Vol 9, pgs. 421-423. Values of Specific leaf weight measured in the paper varied from 2.15 to 4.3, with early season growth mostly in the area of 2.15 to 2.72 mg/cm^2 Conversion to m^2/kg is * 10^6 mg/kg * 10^-4 m^2/cm^2 = 100 / mg/cm^2 2.15 mg/cm^2 = 100 / 2.15 m^2/kg = 46.5 m^2/kg, 100 / 2.72 = 36.8, 100 / 4.3 = 23.3 M. H. Hall, C. J. Nelson, J. H. Coutts and R. C. Stout. 2004. Effect of Seeding Rate on Alfalfa Stand Longevity. Agron. J. 96:717-722 Stem densities for the MO94 study (data not presented) were not different among seeding rates at any sampling time. There were 623 stems m–2 13 MAP and only 350 stems m–2 by 25 MAP. Stem density remained nearly constant at that level through 49 MAP. During the same time period, plant density declined from an average of 100 down to 25 plants m–2. This means that there was a fourfold increase in stems per plant from 25 to 49 MAP during the same time period. Thereafter, stem density continued to decline to 290 and 260 stems m–2 at 63 and 73 MAP, respectively, while plant density fell below 15 plants m–2 during the same time period. Crowns develop stems in response to light (Cowett and Sprague, 1962) and apparently could not continue to maintain high stem density with the thin stand and older plants. data as shown above. MAP = months after planting SPM2 = stems per square meter PPM2 = plants per square meter SPP = stems per plant MAP SPM2 PPM2 SPP 13 623 100 62.3 25 350 36 9.7 49 350 25 14 63 290 16 18 73 260 13 20 With the critical period of alfalfa being establishment, a stem count, equals plant count of 400 stems per square meter is used to try and get early cover. Fick, G.W., D.A. Holt, D.G. Lugg. 1988. Environmental Physiology and Crop Growth. in A.A. Hanson, D.K. Barnes, R.R. Hill , Jr., eds. 1988 Alfalfa and Alfalfa Improvement. Agronomy Monograph Number 29. American Society of Agronomy. page 181. Growth temperatures: GDD base from 0 to 5 C, varies depending on time of year. GDD totals 0 C base, 700 to bud, 880 to first flower, 1075 to full bloom, 1900 to ripe seed stages. Suggests a GDD max temperature around 30 C 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 crop_devnotes Enter dev notes here.