Fertilizer doses were applied in two splits following the two seasons of irrigation during the drought period (November-April) of 2001-02 and 2002-03.
There were 3 levels of irrigation as l0 = No irrigation, I1 One irrigation at the middle of the month and 12 = Two irrigations in a month (15 days interval).
On each occasion, 2 acre-inch irrigation water was applied.
The experimental design was split split plot with three replications.