Agriculture is the backbone and single largest sector of Pakistan’s economy as its contribution to Gross Domestic Product (GDP) exceeded 25.3 percent during 1997-98. Crops, livestock, fishing and forestry sub-sectors being its main components, only crop and livestock sub-sectors are of...

It follows from the experience of World economies that rising and balanced use of fertilisers is the key factor in agricultural productivity [FAO (1995); SFS and STI (1996); Habib-ur-Rehman (1982) and Pinstrup-Anderson (1976)]. In the case of Pakistan the stepped up fertiliser use has been...