The least hygroscopic fertiliser is

A. SOP

B. CAN

C. SSP

D. NPK Complex

Answer: Option C

Solution(By Examveda Team)

SSP is the most popular phosphatic fertilizer after DAP as it contains 3 major plant nutrients i.e. Phosphorus, Sulphur and Calcium along with traces of other micronutrients.
SSP is a grey to brownish coloured material containing monocalcium phosphate and calcium in almost equal proportions. It is the least hygroscopic but needs moisture-proof packing to avoid lump formation during storage.