Effect of different sources of sulphur on yield and nutrient uptake by wheat

Abstract

A pot experiment was conducted at Choudhary Charan Singh Haryana Agricultural University to study the effect of different sources of sulphur on yield and nutrient uptake by wheat. The data revealed that grain yield of wheat increased significantly with increasing level of sulphur over control (7.68 g/pot). The magnitude of increase in grain yield was 13.1, 17.0 and, 20.4 per cent at 20, 40 and 60 mg/kg sulphur application. The yield of wheat as affected by various sources and level of sulphur revealed that grain yield increased significantly with increasing level of sulphur over control. Amongst various sources of sulphur, the grain yield didn’t vary significantly. The nitrogen in grain and straw indicate that differences in concentration of nitrogen in both grain and straw were differed significantly. The concentration of nitrogen was found higher (1.33%) at highest dose (60 mg/kg) as compared to lower dose. The concentration of nitrogen was found higher at highest dose of S as compared to its lower dose however, the magnitude of increase in nitrogen concentration was more in case of straw as compared to grain. There was no significant difference in concentration of phosphorus in wheat grain due to various sources and levels of sulphur application however in case of wheat straw the phosphorus content differed significantly with increasing level of sulphur application over control (0.49%). The uptake of phosphorus in both grain and straw differed significantly with the application of sulphur over control. The magnitude of decrease in potassium content was 2.0, 6.1 and 8.2 at 20, 40 and 60 mg/kg sulphur. The content of potassium in wheat grain decreased significantly at 60 mg/kg sulphur application whereas; at lower levels the decrease in potassium concentration was found to be non-significant. The uptake of potassium and S in grain increased significantly with increasing levels of sulphur over control.