Ammonium phosphate is a __________ fertiliser.

ANS:D - mixed

Ammonium phosphate is a phosphatic fertilizer. It primarily provides phosphorus to plants, which is essential for various metabolic processes, including photosynthesis, energy transfer, and root development. While it does contain nitrogen in the form of ammonium ions (NH4+), its main nutrient component is phosphorus in the form of phosphate ions (PO4^3-). So, the correct option is: phosphatic