Data was taken on yield and several indicators of earliness in cotton at 7.5, 15, and 30” row spacings fertilized with 0, 45, 90, and 135 lb N/A. In 2000, averaged across 90 and 135 lb N/A, the 7.5” spacing was estimated to be 3.2 days earlier to 60% seedcotton harvest than the 30” spacing. In 2001, rain interfered with data collection and days to 60% seedcotton harvest could not be estimated, but indications from available data show that without adverse weather similar patterns may have occurred. The nitrogen effects on earliness were contributed to by significant differences in date of bloom of bolls harvested from specific fruiting sites in 2000, and by significant differences in boll maturation period (dd60s from bloom to boll opening for an individual boll) in 2001. Row spacing effects on earliness were contributed to by significant differences in boll distribution in both years, as well as significant differences in date of bloom of specific fruiting sites in 2000. Lint yield differences were not significant by row spacing in either year.