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MEMORANDUM <br />December 13, 2013 <br />Issues with Selecting an Appropriate Crop Growth Stage Coefficient for the SCS Mod. Blaney <br />Page 13 of 34 <br /> <br />Figure 9 - kc vs. month for A <br /> <br />The data sets in Figure 9 were removed and only the average value was compared to SCS TR <br />Figure 10 to show how close the two compare. It seems reasonable to assume that the SCS may have <br />smoothed the SCS TR-21 curve to eliminate the peaks and valleys of the average curve. <br /> <br />Figure 10 – kc vs. month for alfalfa <br /> <br />Small Vegetables. The SCS TR-21 <br />from ARS 1275. A single data set representing “vegetables, truck garden” <br />from ARS 1275. The SCS TR-21 coefficients were adjusted to reflect a 200 day growing se <br />compare with the values presented in ARS 1275. <br />(R2 = 0.953), as shown in Chart <br />coefficients reflect small vegetables <br /> <br />0.0 <br />0.2 <br />0.4 <br />0.6 <br />0.8 <br />1.0 <br />1.2 <br />1.4 <br />1.6 <br />1.8 <br />2.0 <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 />0 2 <br />Issues with Selecting an Appropriate Crop Growth Stage Coefficient for the SCS Mod. Blaney-Criddle Eqn. <br />vs. month for Alfalfa <br />were removed and only the average value was compared to SCS TR <br />to show how close the two compare. It seems reasonable to assume that the SCS may have <br />21 curve to eliminate the peaks and valleys of the average curve. <br />vs. month for alfalfa <br />21 coefficients for small vegetables were compared to <br />representing “vegetables, truck garden” in Stockton, CA <br />21 coefficients were adjusted to reflect a 200 day growing se <br />compare with the values presented in ARS 1275. The data from ARS 1275 did show a strong relationship <br />Chart 8, to TR-21 and may suggest that it is probable that <br /> in Stockton, CA at or near sea level. <br />4 6 8 10 <br />Mesa, AZ Davis, CA <br />Los Angeles, CA Stockton, CA <br />Salinas, CA Sacramento, CA <br />Mandan, ND Scottsbluff, NE <br />Redfield, SD Logan, UT <br />St. George, UT Average of ARS 1275 <br />Red Clover Clover <br />alfalfa-grass SCS TR-21 <br />4 6 8 10 <br />Average of ARS 1275 <br />SCS TR-21 <br />Criddle Eqn. <br /> <br />were removed and only the average value was compared to SCS TR-21 in <br />to show how close the two compare. It seems reasonable to assume that the SCS may have <br />21 curve to eliminate the peaks and valleys of the average curve. <br /> <br />were compared to one data set <br />in Stockton, CA was available <br />21 coefficients were adjusted to reflect a 200 day growing season to <br />The data from ARS 1275 did show a strong relationship <br />it is probable that the TR-21 <br />12 <br />12