Vol. 6, Issue 6 (2018)

A pot experiment was conducted at Choudhary Charan singh Haryana Agricultural University to study the effect of different sources of sulphur on micronutrient concentration and uptake by wheat. Various levels of sulphur significantly increased zinc content in grain over control. The increase in zinc content was more pronounced at highest level of sulphur as compared to lower levels. The increase was 5.0, 8.5 and 10.6 per cent over control at 20, 40 and 60 mg/kg sulphur application, respectively. The maximum uptake (558.07 μg/pot) was observed at highest level and the magnitude of increase was 18.8, 27.2 and 33.0 μg/pot at 20, 40 and 60 mg/kg sulphur application over control (419.28 μg/pot).

The copper concentration in grain significantly increased with increasing level of sulphur over control (6.82%). The gradual increase of sulphur from 20 to 40 and 40 to 60 mg/kg also resulted in significant increase in uptake of copper. With regard to various sources of sulphur, the copper uptake in grain was found to be significantly at par. The concentration of manganese in grain also increased significantly with graded dose of sulphur application over control (83.53%). The uptake of manganese in grain was also influenced significantly with respect to various level of sulphur over control (632.50 μg/pot) recording maximum (817.45 μg/pot) at highest level i.e. 60 mg/kg sulphur application. In grain, the iron content also increased significantly with respect to different doses of sulphur and this increased was 4.2, 6.4 and 10.6 per cent at 20, 40 and 60 mg/kg sulphur application over control (97.39%). Uptake of iron by wheat grain was found to be positively and significantly increased with increasing level of sulphur. The increase was 17.9, 25.0 and 33.0 per cent at 20, 40 and 60 mg/kg sulphur application, respectively over control.