Laserfiche WebLink
MEMORANDUM <br />December 13, 2013 <br />Issues with Selecting an Appropriate Crop Growth Stage Coefficient for the SCS Mod. Blaney <br />Page 14 of 34 <br /> <br />Figure 11 - kc vs. month for small vegetables <br />Dry Beans. The SCS TR-21 coefficients for dry bean were compared to one data set from ARS 1275. A <br />single data set representing “small white beans” <br />data from ARS 1275 do not show a significant <br />and may suggest that the TR-21 coefficients could have relied on this data in part, or not at all. <br /> <br />Figure 12 – kc vs. month for Dry Beans <br /> <br />Sorghum. The SCS TR-21 coefficients for <br />Data from ARS 1275 were reported from the following locations: <br /> <br /> <br />Location <br />Phoenix <br />Garden City <br />Lubbock <br /> Table <br /> <br />0.0 <br />0.1 <br />0.2 <br />0.3 <br />0.4 <br />0.5 <br />0.6 <br />0.7 <br />0.8 <br />0.9 <br />0 2 <br />0.0 <br />0.2 <br />0.4 <br />0.6 <br />0.8 <br />1.0 <br />1.2 <br />5 6 <br />Issues with Selecting an Appropriate Crop Growth Stage Coefficient for the SCS Mod. Blaney-Criddle Eqn. <br />vs. month for small vegetables <br /> <br />21 coefficients for dry bean were compared to one data set from ARS 1275. A <br />single data set representing “small white beans” was provided from Santa Barbara, CA in AR <br />a significant relationship (R2 = 0.892), as shown in <br />21 coefficients could have relied on this data in part, or not at all. <br />Dry Beans <br />21 coefficients for sorghum were compared to three data set <br />Data from ARS 1275 were reported from the following locations: <br /> Elevation <br />Location State Crop (m) (ft) <br />Phoenix AZ sorghum 340 1,117 <br />Garden City KS sorghum 865 2,838 <br />Lubbock TX sorghum 992 3,256 <br />Table 12 – Locations of sorghum from ARS 1275 <br />4 6 8 10 <br />SCS TR-21 <br />Stockton, CA <br />7 8 9 <br />SCS TR-21, dry beans <br />ADJ. Santa Barbara, CA <br />Criddle Eqn. <br /> <br />21 coefficients for dry bean were compared to one data set from ARS 1275. A <br />in ARS 1275. The <br />Chart 9, to TR-21 <br />21 coefficients could have relied on this data in part, or not at all. <br /> <br />data sets from ARS 1275. <br />12 <br />10