Rc. Srivastava, DESIGN OF RUNOFF RECYCLING IRRIGATION SYSTEM FOR RICE CULTIVATION, Journal of irrigation and drainage engineering, 122(6), 1996, pp. 331-335
Design of a runoff-recycling-based irrigation system to provide irriga
tion for rice in monsoon season is a complex problem. The irrigation r
equirement, as well as the water availability in the form of runoff, v
ary both in amount and time. The design of an irrigation system based
on the irrigation requirement obtained from short-period experiments m
ay lead to Faulty design. To overcome this, a simulation study of wate
r balance of the cropped area as well as the tank has been done to det
ermine the catchment command area ratio and size of the tank for a fiv
e year return period. It has been found that for transplanting within
optimum period, the catchment command ratio should be 5.0 or more and
a tank of storage capacity of 132.6 mm will be sufficient at a return
period of five years for the U.P. midhills of India. It has also been
found that a short-duration variety will be more suitable for such an
irrigation system.