Why use K-Mag Fertilizer instead of ammonium sulfate?
The agronomic advantage of ammonium sulfate as a sulfur source is that it’s highly acidifying and lowers the soil pH. In high pH soil, ammonium sulfate may provide a useful function in addition to providing sulfur as a nutrient. However, this is a strong disadvantage in most cropping situations. When soils are inherently acidic or low in pH, using ammonium sulfate intensifies this situation. K-Mag features none of these negative characteristics.