Effect of Sulphur Fertilization on Yield and Quality of Wheat Grain

The influence of sulphur fertilization on plant dry weight, grain yield and quality of wheat grain (var. Mulan) was investigated. Wheat was grown in the small plot field experiments conducted in 2011–2012. At the beginning of tillering, the regenerative sulphur fertilization increased dry plant weight and sulphur concentration in dry matter by 28.1–43.2%. Sulphur application reduced the number of unproductive tillers and increased the number of ears per unit area by 10–70%. The highest grain yield was achieved after the application of solid fertilizers YaraBela SULFAN and fertilizer YaraVita Thiotrac applied in the late growing stages. Sulphur fertilization slightly improved the values of grain specific weight, protein content and Zeleny sedimentation volume, but the effect was not significant. The effect of fertilizer application significantly differed between the studied years.