Langfos is the only Organic Sedimentary Rock Phosphate mined in South Africa
Langfos was extensively mined from 1923 to 1994 and farmers who have used Langfos can still observe the positive effects it has in their lands.
In 2010 a new mine was opened in Langebaanweg and is currently in operation and ready to place a firm footprint in the agricultural sector once again.
Langfos – Natural Origins
Over the years sedimentation from cold mineral rich fish waters along the West Coast of the Cape has formed valuable deposits which became further enriched by fossil marine and terrestial animals who contributed threefold to that unique now shallowly covered phosphate occurrence as it is mined today. Altogether 300 different species of prehistoric animals and a number of plants have been identified so far. Arctic and subtropical climatic conditions must have alterated withstorms, floods and droughts. Fluctuation in temperature and the bottom of the sea (over 120m) over the last 20 million years are the main causes of these rather drastic changes.
Langfos (P) 96.2 g/kg
Under the Act 36 of 1947 Langfos is registered as Raw Phosphate and under the name Langebaan Raw Phosphate, as a Group 2 fertilizer.
Like any other fertilizer, its quality is controlled regularly.
Reg. Nr: B4038 Organic.
The total phosphorus content amounts to 9,62% P – expressed as tri-calcium phosphate 63% of the product is in this form.
By repeated extraction all of it is soluble in 2% citric acid. As an indication of the immediately available fraction, the first extraction dissolves 5% P.
Langfos contains 20% of calcium. Because of the linkage of phosphorus with calcium, its neutralising effect increases by the amount of phosphorus that becomes available and is taken up. The remainder of calcium is in the form of carbonates and silicates.
With the exception of cobalt (Co) which is more important to animals, Langfos provides essential iron (Fe), sulphur (S),magnesium (Mg), molybdenum (Mo) and zinc (Zn). All of them contribute in supplementing soil reserves where Langfos is a regular part of the fertilisation programme.
In spite of its high quality, Langphos costs less per ton than any other phosphatic fertilizer.
Product Info and Analysis
Langfos dissolves partially in week acids such as citric acid and when finely milled it is used as a phosphate fertilizer, especially in high and low Ph soils.
Organic Registered No. B4038 Fertilizer Group 2 – Act 36 of 1947
As Langfos is not water soluble, it’s a slow release product which releases the phosphate to the plants over many years assisting the farmer to build up healthy lands. It enriches the soil with trace elements and stimulates root growth and helps with photosynthesis in all plants.
% m / m
Total Phosphorus (P) 9.62
2% Citric acid soluble Phosphorus (P) 3.34
Calcium (Ca) 20.1
Sulphur (S) 0.145
Magnesium (Mg) 1.30
Iron (Fe) 0.73
mg / kg
Manganese (Mn) 9
Copper (Cu) 3
Zinc (Zn) 13
Molybdenum (Mo) <10
Boron (B) 0.8