Abstract
AbstractNew high‐yielding varieties of crops are now available in developing countries. Their potential for improving food and fiber supplies is limited by the availability of inputs such as fertilizer, irrigation, and pesticides. The effects of present, projected, and nonrestrictive supplies of fertilizer are estimated for Punjab State, India. Results indicate that large amounts are needed over and above current plan targets in order to maximize food output and farm incomes. Further, changes in price policy will be necessary to maintain production of crops where no improved‐yield‐potential varieties are available. Uniform allocations of scarce fertilizer supplies within a state will not maximize agricultural production and incomes.
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