Effect of iron and sulphur levels on yield, oil content and their uptake by Indian mustard (Brassica juncea)

A field experiment was conducted during winter seasons (rabi) of 1999–2000 and 2000–01 to study the effect of graded levels of iron and sulphur on Indian mustard [Brassica juncea (L.) Czernj. & Cosson]. Indian mustard responded significantly to the application of Fe and S. The seed and stover yields increased linearly up to 20 kg Fe/ha and 40 kg S/ha. The seed yield (17.72 q/ha) at 20 kg Fe/ha was 12.4% higher than that obtained in the control. Similarly, application of 40 kg S/ha gave the highest seed yield (18.37 g/ha), which was 28.1% more in comparison with that of the control. The uptake of Fe and S significantly increased up to 40 kg S/ha and 40 kg Fe/ha, and at 60 kg S/ha and 20 kg Fe/ha respectively. Oil content increased significantly with Fe and S addition. The added Fe and S were utilized maximum under application of the lowest levels of Fe and S.