Tuesday, January 11, 2011

Fertilizers & Cement

Pakistan has an agriculture based economy, the fertilizer industry is vital to its survival. In addition to cow dung, compost and other manures, the agricultural sector requires chemical fertilizers. The consumption of chemical fertilizers has increased from 31000 nutrient tonnes in 1960-1 to 2.2 million tonnes in 19997-8. Although the production of fertilizer has risen, it has fallen short of the demand, and Pakistan has to import a large quantity from abroad.
The production of chemical fertilizers began in the 1950s when the Pakistan Industrial Development Corporation established two factories when natural gas was discovered, factories were built at Faisalabad, Daud Khel and Multan. Since then, urea plants have been established at a number of localities throughout the country. Nitrogenous fertilizers account for the bulk of the total production because Pakistan's soil are highly deficient in organic matter.

The main raw material of the cement industries is limestone, followed by a substantial quantity of gypsum. Fortunately, Pakistan has large quantities of both, and the domestic market is also sufficiently large. Although Pakistan used to export cement in the early years, once development in the country began in earnest, Pakistan had to import cement, despite the gradual increase in local production, The country is still not self sufficient in cement production, although the gap between supply and demand has been bridged to such an extent that there is a surplus in some years. The number of cement factories increased over the years from five in 1947 to 24 in 1999-2000.

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