Effect of sulphur on groundnut under different irrigation regimes

A field experiment was conducted in sandy loam soil of Bidhan Chandra Krishi Viswavidyalaya, "C" Block Farm, Kalyani, Nadia, West Bengal, India during pre-kharif season of 2009 and 2010. The experiment was laid out in a split plot design having eight irrigation treatments in main plots and three sulphur treatments in sub-plot replicated thrice. The growth attributing characters, yield attributes, yield, yield parameters, the net return, benefit: cost ratio, and total uptake of nutrients (N, P, K and S) were significantly influenced by both the levels of irrigation and sulphur in most of the recording dates of observation during two consecutive years as well as pooled data. The higher values were recorded in three irrigations applied at flowering, pegging and pod filling stages (I8) along with sulphur applied @ 15 kg ha-1 (S2) treatment at all dates of recording observation during both the years of experimentation as well as pooled data. The highest CU and WUE were recorded in three irrigations applied at flowering, pegging and pod filling stages (I8) treatment and the lowest values were recorded in no irrigation (I1) treatment.