A field experiment was conducted during winter 2014-15 and 2015-16 at Agronomy research farm, Jobner, Rajasthan to evaluate the effect of weed management practices and sulphur fertilization on productivity, profitability and sulphur use efficiency of mustard (Brassica juncea
Coss). The results indicated that plots under twice hand weeding (HW) at 25 and 45 (DAS) had the significantly highest growth and yield attributes followed by pendimethalin at 0.75 kg/ha (PE). Among weed management practices, the highest seed and straw yield (2.49 t/ha and 7.14 t/ha)
were obtained with two HW and pendimethalin (2.16 t/ha and 6.24 t/ha) treatments (Pooled data two years). The highest net returns were also obtained with two HWs, and the increment to the tune of 14.9, 20.1 and 36.5 % over pendimethalin, one HW and trifluralin (0.75 kg/ha), respectively. Sulphur fertilization at 40 kg/ha significantly improved the growth, yield attributes and yield over the preceding levels. However, it remained statistically at par with 60 kg S/ha. Two HW was also found best for agronomic efficiency (AE) and apparent recovery (RE) of applied S (25.82 kg seed/kg S; 57.23%). Maximum AE and RE were obtained with 40 kg S/ha.