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Agriculture · Q484

Plant Pathology

Graduate and Post Graduate · Agriculture · question 484

Q484

Single super phosphate has chemical composition

A.
(NH4)2 HOP4
B.
3 Ca (H2PO4)2
C.
Ca(H2PO4)2
Answer
D.
None of these

Answer: Option C

Solution

Answer: Option C
Solution:
Single superphosphate has a chemical composition Ca(H2PO4)2.
Single Super Phosphate contains only one nutrient i.e. Phosphorus. So, it is a simple fertilizer having the chemical formula Ca(H2PO4)2.2H2O (Monocalcium Phosphate Dihydrate). In SSP, the phosphorus is in the form of P2O5 and contains 16% P2O5.
Single Superphosphate is produced by reacting naturally occurring phosphate rock with sulphuric acid. This process converts insoluble phosphates into forms more readily available to plants.