Sulphur (S) is considered to improve the nutrient uptake of plants due to its synergistic relationship with other nutrients. This could ultimately enhance the seed yield of oilseed crops. However, there is limited quantitative information on nutrient uptake, distribution, and its associated impacts on seed yield of sesame under the S application. Thus, a two-year field study (2018 and 2019) was conducted to assess the impacts of different S treatments (S₀ = Control, S₂₀ = 20, S₄₀ = 40, and S₆₀ = 60 kg ha⁻¹) on total dry matter production, nitrogen, phosphorus, potassium, S uptake and distribution at the mid-bloom stage and physiological maturity. Furthermore, treatment impacts were studied on the number of capsules per plant, number of seeds per capsule, thousand seed weight, and seed yield at physiological maturity in sesame. Compared to S₀, over the years, treatment S₄₀ significantly increased the total uptake of nitrogen, phosphorus, potassium, and S (by 13, 22, 11% and 16%, respectively) at physiological maturity, while their distribution by 13, 36, 14, and 24% (in leaves), 12, 15, 11, and 15% (in stems), 15, 42, 18, and 10% (in capsules), and 14, 22, 9, and 15% (in seeds), respectively. Enhanced nutrient uptake and distribution in treatment S₄₀ improved the total biomass accumulation (by 28%) and distribution in leaves (by 34%), stems (by 27%), capsules (by 26%), and seeds (by 28%), at physiological maturity, as compared to S₀. Treatment S₄₀ increased the number of capsules per plant (by 13%), number of seeds per capsule (by 11%), and thousand seed weight (by 6%), compared to S₀. Furthermore, over the years, relative to control, sesame under S₄₀ had a higher seed yield by 28% and enhanced the net economic returns by 44%. Thus, our results suggest that optimum S level at the time of sowing improves the nutrient uptake and distribution during the plant lifecycle, which ultimately enhances total dry matter accumulation, seed yield, and net productivity of sesame.

由于硫与其他养分的协同关系，因此被认为可以改善植物对养分的吸收。这最终可以提高油料作物的种子产量。然而，在S施用下，关于养分吸收，分配及其对芝麻种子产量的相关影响的定量信息有限。因此，进行了为期两年的现场研究（2018年和2019年），以评估不同S处理的影响（S ₀ =对照，S ₂₀ = 20，S ₄₀ = 40和S ₆₀ = 60 kg ha ^-1）中血期的总干物质产量，氮，磷，钾，S的吸收和分布以及生理成熟度。此外，研究了芝麻对每株植物的胶囊数，每粒胶囊的种子数，千粒重和生理成熟时种子产量的影响。与S ₀相比，多年来，处理S ₄₀在生理成熟时显着增加了氮，磷，钾和S的总摄入量（分别增加了13、22、11％和16％），而它们的分布增加了13 36％，14％和24％（叶子），12、15、11和15％（茎），15、42、18和10％（胶囊）和14、22、9和15％ （在种子中）。处理S _40中养分吸收和分配增加与S相比，在生理成熟时提高了总生物量积累（28％）和在叶片（34％），茎（27％），荚膜（26％）和种子（28％）中的分布₀。与S ₀相比，处理S ₄₀使每株植物的胶囊数量（增加13％），每粒胶囊的种子数量（增加11％）和千粒重（增加6％）。此外，多年来，相对于对照，S ₄₀下的芝麻具有更高的种子产量28％，并使净经济收益提高44％。因此，我们的结果表明，播种时最佳的S水平可改善植物生命周期中养分的吸收和分配，从而最终提高芝麻的总干物质积累，种子产量和净生产力。