Super Sulphur Plus has the complete spectrum in it. Elemental Sulphur (S) in a range from 3% to 35%. ThioSulfate forms from 5% to 90% (these are the active acid forms.). Sulfate (SO4) forms 10% to 70%. These active ranges are a result of the chemical breakdown of Elemental Sulphur(S) under the influence and activity of the Thiobacillus (soil microbes) with moisture and oxygen as impregnated during the milling process. This is an ongoing process of acidification as the S breakdown continues until it is oxidized to the SO4 element. In summary, this product contains over 85% of sulfur related amendment forms.
Super Sulphur Plus contains Gypsum (CASO4) in a range from 5% to 35%. Soluble Calcium will range from 3% to 10% depending on acidification of the Gypsum from the thiosulfates.
Super Sulphur Plus contains Potassium in three forms. Potassium Sulfate, Aluminum Potassium Sulfate [KAL (S04)2] and Potassium Silicate (from Feldspar), K ranges from 8% to 15% depending on blend from the mine plus acid influence on the element (K complex).
Super Sulphur Plus contains aluminum in the form of the Potassium Aluminum Sulfate. Aluminum Sulfate in itself is a soil acidifier. Aluminum is the third highest element found in the earth's soil (8% to 14%). Aluminum does not become available to plants until the soil pH falls to below five (5). The addition of 140 to 280 pounds of aluminum sulfate per acre foot of soil that already contains approximately 184,000 pounds of aluminum per acre foot will make a very insignificant change in structure.
Super Sulphur Plus contains Zinc, Iron Manganese, Copper, Boron and Molybdenum. Nickel is also present in small amounts and considered the seventeenth essential element. Iron is the most abundant mineral with 1 to 2% as Iron Sulfate. The above nutrients are either in a sulfate form and/or in a silicate form. Sodium levels are very low at + or - .06%.
The application of sulphur coupled with thiobacilli
renders alkali soils fit for cultivation of crops. The formation of H2SO4 in soil following additions of elemental sulphur augments nutrient mobilization by increasing the level of soluble phosphate, potassium, calcium, manganese, aluminium and magnesium. In fact, manganese deficiency in soils can be corrected by sulphur applications.