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The soil has a field capacity of 22% and a permanent wilting point of 12%, both on dry mass basis. The bulk density is 1.4 g/cc. If the root zone depth is 1.0 m and the allowable deficit is 45%, the depth to which irrigation starts is 77.0 mm 230 mm 245 mm 308 mm What is the most appropriate value of Chezy’s C for a uniform flow of 0.5 m^3/s through a rectangular concrete channel (n=0.015) with base of 1.2 m and depth of 0.6 m over a bottom slope of 0.0004? 53.9 54.5 63.3 84.7 V=C√RS

Author
tatobeann
Language
EN