For rainfed crop, irrigation is not needed but drainage is very important because this crop is very much sensitive to water logging.

For summer season crop, five to six irrigations may be given. First irrigation should be given at 20-25 DAS and subsequent irrigations should be given at an interval of 12-15 days. Irrigation should not be given at full bloom stage of the crop. Late flowering and early pod filling stages are critical stages for irrigation.