Journal of Hill Agriculture

The productivity of oilseeds in India (935 Kg ha⁻¹) is still below the world average (1632 Kg ha⁻¹). The main reason for low productivity is that these crops are largely cultivated under nutrients starved conditions. Hence, requirement of major nutrients (NPK) as well as sulphur in oilseed crops is quite high. Keeping this fact in view, field experiment was conducted on gobhi sarson(Brassica napus L.) to study the effect of nitrogen and sulphur fertilizers on seed yield, 1000-seeds weight, fatty acids (Palmitic, stearic, oleic, linoleic, linolenic, ecosenoic and erucic acid) content and available nitrogen and sulphur in soil. A total of sixteen treatments including control were replicated thrice in a Randomised Block Design. Results revealed that combined treatment of N₁₂₀ S₆₀ Kgha⁻¹ recorded highest seed yield (1641 Kg ha⁻¹), which was significantly superior to control (416 Kg ha⁻¹). Application of N SKg ha⁻¹ resulted in highest 1000 seeds weight (3.51g). Maximum oleic acid content (66.3%) was recorded in treatment N₈₀ S₀ Kg ha⁻¹. Whereas, maximum linoleic acid (19.4%) content was obtained with combined treatment of N SKg ha⁻¹. Optimum and maximum dose of sulphur for the crop was 48.05 and 62.24 Kg ha⁻¹, respectively. A significant interaction was observed between N and S on available nitrogen and sulphur levels of soil.