Research article EFFICACY OF SULPHUR SOURCES ON GREEN GRAM (Vigna radiata L.) IN RED AND LATERITIC SOIL OF WEST BENGAL

Field experiment conducted on Green gram (Vigna radiata L.) during Pre-Kharif of 2012 in a typical red and lateritic soil of West Bengal, India revealed that sources of S viz. Gypsum, Magnesium sulphate and Single superphosphate and levels of sulphur (0, 20, 40, 60 and 80 kg S ha -1 ) have significant influence on seed yield, total biological yield, sulphur content in seed and straw, total sulphur uptake, protein content, chlorophyll and carotenoids content. Although the seed yield and total biological yield increased with the increase of levels of sulphur, but higher levels failed to yield significant increase over 60 kg S ha -1 irrespective of sources under consideration. However, the maximum seed yield (949 kg ha -1 ) was obtained with magnesium sulphate and single superphosphate followed by gypsum (827 kg ha -1 ), respectively @ 60 kg S ha -1 . Over all best performance was recorded when sulphur was applied @ 60 kg S ha -1 either as magnesium sulphate, Single