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tries. 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. EW technology in the form of high-yielding crop varieties is rapidly becoming available in the developing nations of the world. Dwarf Mexican wheat, short-stemmed rice, and hybrid millets are examples of technological improvements in varieties. In past five-year plans, the government of India has placed heavy emphasis on the successful introduction of new varieties in a complete package of recommended agronomic practices. In the year 1966-67, high-yielding varieties were planted as follows: 0.5 million acres of wheat, 2.5 million acres of rice, 0.8 million acres of hybrid corn, and 0.5 million acres of hybrid pearl millets.1 This acreage, of course, when compared to the 125 million acres of cropland in India, is nominal. By the year 1970-71, India is hoping for 8.0 million acres of wheat, 12.5 million acres of rice, and 4.0 million acres of corn |
