World and regional supply and demand balances for nitrogen, phospate and potash 1989/90 - 1995/96. - Washington : World Bank, 1991. - World Bank technical paper number 144 .

This report looks at the demand and supply of nitrogen, phosphate and potash fertilizers. It also looks at the capacity to produce by the membership of the fertilizer working group.


International trade.
Nitrogen -- Potash -- Phosphates.--Nitrogen -- Potash -- Phosphates.--Nitrogen -- Potash -- Phosphates.