Nitrogen and sulfur are closely linked nutrients that work together in many essential plant processes, particularly protein synthesis. An adequate supply of both nutrients is therefore key to achieving efficient crop growth, high yields and quality production.

Under cold spring conditions, the mineralisation of soil organic matter is often insufficient to meet crop demand. Applying readily available nutrients such as nitrate and sulfate (SO₄²⁻) therefore helps ensure an adequate supply of nitrogen and sulfur during early growth.

Numerous field trials have demonstrated that combining nitrogen and sulfur fertilisation can improve nutrient efficiency compared with nitrogen-only applications. By supplying both nutrients in the right ratio, crops can make better use of available nitrogen, supporting stronger growth, improved protein formation and enhanced yield potential.

NutriGuide® recommends the most appropriate nitrogen-to-sulfur (N:S) ratio for each crop. The sulfur fertilisation recommendation in NutriGuide® depends on N demand and crop type.