Influence of Different Levels of Sulphur and Phosphorus on Growth and Productivity of Mustard (Brassica juncea L.)

Abstract

A field experiment was conducted at the Agronomy Research Farm of Nirwan University, Jaipur (Rajasthan) during the Rabi season of 2023-24. The experiment consisted of ten treatments with different combinations of phosphorus and sulphur. The results revealed that the combined application of phosphorus and sulphur significantly enhanced the growth and yield parameters of Indian mustard compared to the control. The highest plant height (152.91 cm), dry matter accumulation (436.47 g m-2), number of siliquae per plant (340.58), number of seeds per siliqua (13.45), seed yield (1897.89 kg ha⁻¹), stover yield (4723.33 kg ha⁻¹), and biological yield (6621.22 kg ha⁻¹) were obtained with the application of 45 kg ha⁻¹ phosphorus and 40 kg ha⁻¹ sulphur. The significant improvements in growth and yield attributes can be attributed to enhanced metabolic activity, better cell division, and increased photosynthetic efficiency resulting from phosphorus and sulphur availability. Consequently, the application of 45 kg ha⁻¹ phosphorus and 40 kg ha⁻¹ sulphur was found to significantly improve overall productivity of Indian mustard.