Sulfur in Fertiliser: What Does it Mean?

[Stroodle]

Hi,

I'd just like to know why fertiliser producers refer to "the percentage by mass of sulfur present as sulfate" in their fertilisers?

Thanks!

 

[PhaseShifter]

Do you know the solubility rules for sulfates, sulfides and elemental sulfur?

 

[Stroodle]

Nope. Unfortunately i don't :(

 

[chemisttree]

So they don't have to speciate it.

 

[DeeNos]

I can explain that sulfur is an essential element for plant growth and development. It plays a crucial role in the formation of proteins, enzymes, and chlorophyll in plants. Fertilisers that contain sulfur help to replenish the soil with this important nutrient, promoting healthier and more robust plant growth.

When fertiliser producers refer to "the percentage by mass of sulfur present as sulfate," they are indicating the form in which the sulfur is present in the fertiliser. Sulfur can exist in different chemical forms, and sulfate is the most readily available form for plants to absorb and use. Therefore, by specifying the percentage of sulfur present as sulfate, producers are providing valuable information on the effectiveness of the fertiliser in providing this essential nutrient to plants.

It's also worth noting that the percentage of sulfur present as sulfate can vary among different fertiliser products. Higher percentages indicate a greater concentration of available sulfur, which can be beneficial for plants in areas where sulfur-deficient soils are common. However, it's important to carefully consider the overall nutrient needs of your specific plants and soil before selecting a fertiliser with a high sulfur percentage.

I hope this helps to clarify the importance of sulfur in fertilisers and why producers specify the percentage of sulfur present as sulfate. If you have any further questions, please don't hesitate to ask. As scientists, we are always happy to share our knowledge and expertise.