Rock phosphate
Fertilizers typically have to be provided, in varying proportions:
* the three primary macronutrients: nitrogen (N), phosphorus (P), and potassium (K).
* the three secondary macronutrients: calcium (Ca), sulphur (S), magnesium (Mg).
* and the micronutrients or trace minerals: boron (B), chlorine (Cl), manganese (Mn), iron (Fe), zinc (Zn), copper (Cu), molybdenum (Mo) and selenium (Se).
The macronutrients are consumed in larger quantities and are present in plant tissue in quantities from 0.2% to 4.0% (on a dry matter weight basis). Micronutrients are consumed in smaller quantities and are present in plant tissue in quantities measured in parts per million (ppm), ranging from 5 to 200 ppm, or less than 0.02% dry weight.
Rock phosphate: Let us explain a little more of the raw material product which form the core of our current
interests. This material is mined from the regions having large deposits, carried by surface transport to the nearest
port and despatched world wide through the sea. The phosphate contained in the rock is of great importance to
plants and agriculture. 
The grades that could be organised range from 20 % purity onwards for specific applications. Some source origins go upto 37 % purity. The most sought after being in the range of 28 %, 30 % etc. Availability of rock worldwide is limited to certain regions, logistic cost is another important factor in the delivered pricing. Surely pricing is influenced due to location, purity, and a host of other parameters.
For the different grades, composition and specs, open, download or print as required.
Rockfert Syria 1.pdf Rockfert Syria 2.pdf Rockfert Egypt 30.pdf
Rockfert Syria 3.pdf Rockfert Syria 4.pdf Rockfert Egypt 28.pdf Others sources coming up
This is the basic raw material for the manufacture of Single super phosphate.
Single Super Phosphate (SSP) Fertilizer industry is the pioneering fertilizer industry in the country and the first SSP plant is said to have been established by EID Parry in the year 1906. Manufacturing of SSP is based on perhaps the simplest chemical reaction amongst chemical fertilizer industry. The main raw materials required are rock phosphate and sulphuric acid. SSP is a straight phosphatic multi-nutrient fertilizer which contains 16% water soluble P2O5, 12% sulphur, 21% calcium and some other essential micro nutrients in small proportions. SSP, which is a poor farmer's fertilizer (price-wise), is an option to optimise the use of phosphatic fertilizers.
It also helps to treat sulphur deficiency in soils (40% Indian soil sulphur deficient) as well for further enhancement of yields at the least cost. In various crops, which require more of sulphur and phosphate like oilseeds, pulses, sugarcane, fruits and vegetables, tea etc, SSP is an essential fertilizer.
Advantages of SSP Fertilizer:
1. Provides 15% of total phosphate requirement of the country.
2. Lowest price per kg, preferred by small and marginal farmers.
3. Multi-nutrient fertilizer containing P2O5 as primary nutrient and Sulphur,Calcium as secondary nutrients.
4. It is the cheapest source of Sulphur for the soil.