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Thio-Sul®: Trust The Original

Sulfur is the fourth most essential nutrient for healthy crops following nitrogen, phosphorus and potassium. Thio-Sul, the original ammonium thiosulfate fertilizer supplies a higher level of sulfur than all other clear liquid fertilizer on the market. Furthermore, Thio-Sul also provides immediate available nitrogen that is essential to plant growth and development. Both of these nutrients play crucial roles in the production of chlorophyll and amino acids in healthy crops.

In addition to its sulfur and nitrogen benefits, adding Thio-Sul to urea ammonium nitrate (UAN) solution is a cost-efficient and highly effective way of reducing nitrogen loss. Thio-Sul has nitrification inhibition properties that slow the conversion of ammonium to nitrate, in turn reducing the chances of nitrogen leaching and denitrification. Thio-Sul can also improve soil structure in high pH soils, enhance water infiltration, assist in breaking down previous crop residues, and enhance nitrogen uptake for the crop.


  • Helps improve nitrogen use efficiency
  • Provides quickly available and extended release sulfur
  • Improves phosphorus uptake when applied in the same retention zone
  • Can be applied through most irrigation systems
  • Easy to mix and handle, and compatible with most liquid fertilizers
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Thio-Sul in Wheat

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Thio-Sul can enhance the cultivation


Field Trials

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carried out by our agronomists