Laserfiche WebLink
Woodward 1963 <br />1.Hyrum Woodward, Assistant Irrigation Engineer for SCS in Portland, OR <br /> <br />•The SCS is using a modification of the Blaney-Criddle method, need for monthly <br />estimates <br /> <br />•Suggest values of k for a number of crops are listed in TB 1275 <br /> <br />•A procedure was developed to determine k where data were not available per <br />Phelan (1954) <br /> <br />•Tentative curves were developed for ~20 types of crops applicable to the <br />western U.S. <br /> <br />•There is a critical need for additional measurements <br /> <br />•There is a significant lack of reliable measurements on most crops <br /> <br />•Much of the data appears to be affected by drainage or by inadequate soil <br />moisture during critical stages of growth