Field trials were conducted with cv. 'Kufri Chandramukhi to study the responses of the potato to two levels of N (80, 120 kg/ha) and its time and method of application on red laterite soils of Bangalore. Nitrogen application increased the tuber yield significantly. It also increased the plant height, fresh waight of haulm and number of tubers/hill Application of 80 kg N/ha i.e., 40 kg/ha applied to the soil at planting+-40kg/ha applied to the soil at earthing up recorded the highest yield (281.9 q/ha) and appeared to be optimum dose. It was superior to 80 kg N/ha and 120 kg N/ha whole dose applied to the soil at planting.
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