Role of Sulphur in Potato Production

Sulphur effect on common and powdery scab

Sulphur helps to reduce the level of common and powdery scab. This effect may be due to a reduction in the soil pH where elemental sulphur is used.

Sulphur and common scab

Best effects come from applying sulphur to the soil in a readily available form at planting. However, a program of foliar sulphur can also reduce scab, as study in Scotland shows.

General guidelines for sulphur application

The potato crop has a demand for sulphur in similar quantities to magnesium. Where potassium sulphate is commonly used, supplies are usually adequate. Best effects come from applying sulphur to the soil in a readily available form at planting.