Effect of Different Sources and Levels of Sulphur in Sesame on Yield, Nutrient Uptake and Soil Fertility in Acid Alfisols of Odisha, India

Aims: To examine the impact of different sources and levels of Sulphur on yield and oil content of sesame in acid Alfisols of Dhenkanal district of Odisha.

Study Design: Randomized Block Design with three replications.

Place and Duration of Study: During 2018 and 2019, this experiment was carried out at the Odisha University of Agriculture and Technology's Regional Research and Technology Transfer Station, which is located in Mahisapat, Dhenkanal district, Mid Central Table Land Zone, Odisha.

Methodology: The treatments were T1- STBFR (S control), T2- STBFR + 30 kg ha-1 S from Ammonium Phosphate Sulphate, T3- STBFR + 40 kg ha-1 S from Ammonium Phosphate Sulphate, T4- STBFR + 30 kg ha-1 S from Gypsum, T5- STBFR + 40 kg ha-1 S from Gypsum, T6- STBFR + 30 kg ha-1 S from SSP, T7- STBFR + 40 kg ha-1 S from SSP.

Results: Among seven treatments, T7 (STBFR along with 40 kg ha-1 S from SSP) was superior among all the sources and doses w.r.t. yield components and yield. The quality parameters like oil content under different sulphur fertilization was found to be maximum with STBFR along with 40 kg ha-1 S from SSP. Highest total nutrient uptake in terms of N, P, K and S of 55, 26, 37 and 5 kg/ha was recorded with the same treatment.

Conclusion: Sulphur fertilization (T7) in the acid Alfisols of Odisha exhibited improved yield, oil content and nutrient uptake in sesame.