The Value of Sulphur

Sulphur is one of the most abundant elements in the earth's crust. Like nitrogen, sulphur is an essential component in the growth of all living things.

Sulphur is a building block of proteins, enzymes and vitamins and is a key ingredient in the formation of chlorophyll. Crops which are sulphur deficient typically show stunted or tall spindly growth, general yellowing of younger leaves and reduced seed set.

Plants absorb sulphur in the sulphate (SO₄^-) form.

Best Management Practices

1. Soil and plant tissue test to estimate the soil’s ability to supply sulphur. Sulphate
   availability can be extremely variable within a field.
2. Apply sulphate (SO₄^-) forms of sulphur for the quickest uptake by plants.
3. Balance nitrogen and sulphur applications to prevent sulphur deficiency.
4. Sulphate is very mobile in the soil. Banded, broadcasted and seed placed
   applications perform equally well.

Agrium produces and sells two sulphur products:

• Ammonium Sulphate
• Sulphuric Acid