Sulphur is an essential nutrient vital for plant growth, supporting protein synthesis, enzyme function, chlorophyll production, and overall plant health.
Typical signs of sulphur deficiency include:
Application rates vary; cereals typically require 10–30 kg/ha, while legumes and oilseeds often need 20–60 kg/ha.
Soil testing will provide accurate recommendations and help you to only use what you need.
Yes. Elemental sulphur lowers soil pH as it converts into sulphuric acid through microbial activity, helping manage alkaline soils.
Yes, usually elemental sulphur and certain natural sulphur products are approved for organic agriculture. Always verify with your certification body.
When properly applied, sulphur is environmentally friendly and beneficial. However, excessive use can cause soil acidification or runoff, so responsible management is crucial.
Store sulphur products in a dry, well-ventilated area away from moisture and ignition sources. Always use proper protective equipment (PPE) during handling to avoid health risks and read the labels carefully.
Sulphur bentonite is generally composed of 90% elemental sulphur and 10% bentonite clay. The bentonite helps break down the sulphur, improving its availability to plants.
Sulphur bentonite offers controlled-release sulphur availability, providing a steady nutrient supply throughout the growing season and reducing nutrient loss through leaching compared to other sulphur fertilisers.
When applied, bentonite clay absorbs moisture and expands, breaking sulphur into fine particles. Soil microbes then oxidise these particles into sulphate, the form plants can readily absorb.
Apply evenly using standard fertiliser spreading equipment. You can broadcast it on the soil surface or incorporate it before planting, with application rates typically between 10 to 40 kg per hectare based on soil testing. Contact us for more advice on your individual crop or farm needs.
The use of sulphur bentonite is beneficial for a wide variety of crops globally, including:
Yes, usually sulphur bentonite is allowed in organic farming as a natural mineral product. Confirm compliance with your organic certification body.
Yes. When used correctly, sulphur bentonite poses no significant risks to soil, water, or wildlife and actively supports sustainable farming practices.
Its controlled, slow-release action provides sulphur gradually over the growing season, reducing the number of fertiliser applications required and thereby lowering fuel use, labour costs, and soil compaction.
Additionally, its gradual breakdown significantly minimises nutrient losses through leaching and volatilisation, ensuring more efficient nutrient uptake by plants, protecting water quality, and enhancing overall environmental sustainability compared to traditional sulphur fertilisers.
Store in a cool, dry place, sealed in original packaging or airtight containers to prevent premature breakdown from moisture exposure.
Sulphur bentonite begins to break down into plant-available sulphate within a few days, with full conversion typically occurring over several months depending on soil conditions, moisture levels and microbial activity.
Yes, it can be mixed with other granular fertilisers. Ensure physical compatibility to avoid separation during spreading.
Excessive application can temporarily lower soil pH. Regularly monitor pH and, if necessary, correct acidity with lime or other soil amendments.