Joe C Mathew / New Delhi July 09, 2008, 0:41 IST The Madhya Pradesh High Court has stayed the implementation of the central government's pricing policy on single super phosphate (SSP) fertilisers. The decision may affect the supply of SSP in the state as the industry is apprehensive of selling the product without a valid pricing policy that prescribes high subsidy rates. SSP, an alternative to DAP (diammonium phosphate), is used in oilseeds, pulses, sugarcane and horticulture cultivation.