Analysis of growth and productivity of sesame (Sesamum Indicum) in relation to nitrogen, sulphur and boron

A field experiment was conducted during summer season of 2001 and 2002 to study the effect of nitrogen (N), sulphur (S) and boron (B) on physiological parameters in relation to productivity of sesame (Sesamum indicum) on Gangetic alluvial land. Application of N, S and B improved the physiological parameters, viz. leaf area index (LAI), biomass production (BM), crop growth rate (CGR), relative growth rate (RGR), net assimilation rate (NAR) and increased yield attributes which eventually resulted in higher seed yield. Application of 90 kg N, 50 kg S and 1 kg B ha⁻¹ increased the seed yield of sesame by 94.2, 30.4 and 10.4% respectively over their respective control. Increase in level of N and S increased agronomic and physiological efficiency of respective nutrient. Among the nutrients applied, B showed the maximum agronomic and physiological efficiency.