Impact of Various Nitrogen Rates on the Performance of Winter Potato (Var. Kufri Sindhuri) in Valley Areas of Manipur, India

The research was aimed at analyzing the performance of winter potato under different nitrogen rates at the experimental fields of College of Agriculture, Central Agricultural University, Imphal. The variety Kufri Sindhuri was cultivated during the winter seasons of 2017-18 and 2018-19 under three different nitrogen rates- 120 kgha-1 (N1), 100 kgha-1 (N2) and 80 kgha-1 (N3) using drip irrigation. The results indicated that plants fertilized with 120 kgha-1 nitrogen recorded maximum germination percentage (86.17%), plant height (40.47cm), number of shoots plant-1 (4.50), stem girth (0.56cm), crop growth rate (17.96gm-2day-1), relative growth rate (2.75gg-1day-1), weight of tubers per plant (1.04kg) and tuber yield (19.96t/ha) amongst other treatments. Thus, concluding that healthy plants and good yield of potato was obtained when fertilized with 120 kgha-1 of Nitrogen in Imphal.