Effect of sources and levels of sulphur on nutrient content, uptake and quality of sesame (Sesamum indicum L.)

An experiment was conducted at Agronomy Farm, S.K.N. College of Agriculture, Jobner, during kharif season 2017. The experimental field was loamy sand in texture. The treatments comprised of three sources (gypsum, elemental sulphur and iron pyrite) and four levels of sulphur (15, 30, 45 and 60 kg ha-1) along with an absolute control (no sulphur), making 13 treatment combinations. These 13 combinations were replicated three times in randomized block design. Sesame variety RT-346 was used as a test crop. The highest concentration of N, P, K and S in seed and stalk and protein, carbohydrate and oil content and their uptake were obtained highest with 45 kg S/ha, however it was remained at par with 60 kg S/ha. The content of N, P, K and S in seed and stalk and their uptake and protein, carbohydrate and oil content significantly increased with gypsum application than iron pyrite and elemental sulphur.