All the plots were basall applied with 40 kg ha- each of Phosphorus and Potassium. Nitrogen treatment commenced 14 day.The leaf Nitrogen status of the plants in on was below the SPAD threshold of 34 and LCC of 4 throughout the growing period. on the contrary one dose application of three urea tablets for every alternate four rice hills could sustain the plant Nitrogen status above the threshold from 21 to 63 dat. in other schemes the plant Nitrogen status declined below the threshold at 35 dat