Field trials were conducted during summer and kharif, 1993 to evaluate the influence of sulphur (s) and magnesium (Mg) application to sunflower crop on yield, seed and kernel oil content. Application of S at 45 kg S ha-1 increased the seed yield significantly by 6.2 and 14.9 per cent over control during summer and kharif respectively while Mg application failed to influence seed yield. Seed oil and kernel oil contents were increased by 2.1 to 5.3 per cent respectively by S application. The oil yield was significantly increased by S application at 45 kg ha-1 the percentage increase being- 9.5 per cent during summer and 11.5 per cent during kharif. The cost benefit ratio of higher oil yield was found to be 7.21 and 9.83 per rupee investment in summer and kharif respectively for S application at 45 kg ha-1.
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