Abstract
A promising red potato variety Symphonia was taken to explore for various nitrogen application techniques like
broadcast (BC), side dressing (SO) and foliar application. Optimal recommended dose of nitrogen (250 kg ha')
were supplied from urea applied at planting and later on. Tuber emergence percentage, number of aerial stems,
leaves plant", plant height, number of tubers, foliage and tuber fresh and dried weight plant" and tuber yield ha'
were found to be better in case of T1O= BC+SO, followed by T7 = BC+BC, T11 = SO+BC and T4 = SO after 30 days
of planting. Similarly, some of the tuber qualitative characters like TSS, specific gravity, dry matter contents were
also better comparatively in case of initially broadcasted or later on side dressed nitrogen as compared to full
basal dose (broadcasted or side dressed) and foliar application of nitrogen. On the other hand some qualitative
characteristics like tuber's moisture, nitrogen, phosphorus, potassium and crude protein contents were improved
in case of foliar application of nitrogen, followed by initially side dressed or full basal single dose of nitrogen as
compared to better performing treatments for all other quantitative characters.
Key words: Solanum tuberosum, urea, nutrient, placement, broadcast, foliar.
