Part 1 of this title was the simulation of the recession flow in a furrow. This part
uses the recession simulation further to establish the basic infiltration rate in
a furrow and, therefore, the infiltration characteristics in a furrow. Determining
infiltration in a furrow is complicated by the dynamic flow nature of irrigation
water, as well as the geometric shape of the channel, among other factors. The
evaluation of this infiltration in furrows is important in order to evaluate the
water use in such irrigation systems. The use of the Kostiakov equation in its
extended form has been suggested for the determination of infiltration characteristics
in a furrow. This equation, however, depends on the evaluation of
the long-term basic infiltration rate, which can be determined practically by a
long-term tedious inflow/outflow hydrograph of the irrigation event. An analytical
method based on the kinematic wave theory and recession flow data is
proposed here to evaluate the long-term basic infiltration rate pertinent to the
correct evaluation of the infiltration flow characteristics in a furrow
