Response of India Mustard (Brassica juncea L.) Varieties to Sulphur Levels in Silty Loam Soil of Munger under Dryland Condition

An experiment was conducted during three consecutive Rabi season from 2000–2003 at Regional Research Station Munger to study the response of Indian mustard varieties to sulphur levels in silty loam soil of Munger district of Bihar. Yield attributing characters did not differ significantly among mustard varieties except siliqua/plant. Grain yield recorded among Varuna and Kranti was at par and both produced significantly the higher grain yield than Pusa bold. However N, P, S uptake and content were significantly higher in Varuna than Pusa bold and Kranti. Application of sulphur recorded significantly higher yield attributes and seed yield than no sulphur. Among the sulphur levels application of 40 kg sulphur/ha though recorded maximum grain yield, Puptake and oil content but was found at par with 30 kg sulphur/ha and significantly higher than its lower levels. However N and S uptake increased significantly with successive increase in sulphur level up to 40 kg sulphur/ha. The optimum dose of sulphur for mustard varieties Varuna, Kranti and Pusa bold was computed to be 38.12, 46.37 and 34.47 kg sulphur/ha respectively. Multiple regression analysis showed that seeds/siliqua had highest contribution (49.62%) to grain production.