What are the primary nutrients found in Single Superphosphate (SSP) fertilizer? (MCAER 2018)

✅Explanation: Single Superphosphate (SSP) is a widely used fertilizer known for its high content of sulfur, phosphorus, and calcium. These nutrients are essential for plant growth and development.

🔑Key Points:

• Single Super Phosphate:
-One of the most popular phosphatic fertilizers used.
-Contains three major plant nutrients: Phosphorus, Sulphur, and Calcium, along with traces of many micro-nutrients.
-Produced by reacting naturally occurring phosphate rock with sulphuric acid.
-Contains 16% Phosphorus (100% water-soluble) and 11% sulfur (increases oil content in oilseed crops).
-Also contains 21% Calcium (increases stiffness of straw and pest resistance).

• Phosphorus-Based Fertilizers:
-Monoammonium Phosphate (MAP): 61% P₂O₅ (phosphate), 12% N (nitrogen)
-Diammonium Phosphate (DAP): 46% P₂O₅, 18% N
-Triple Superphosphate (TSP): 46% P₂O₅
-Single Superphosphate (SSP): 16% P₂O₅, Sulfur, and Calcium
-Phosphoric Acid: 52-54% P₂O₅
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