Demand for fertilizer in southern Brazil, 1948-1971

The demand function considers fertilizer use to be a function of fertilizer prices, crop prices, area cultivated, crop yields and time. The results indicate that the price elasticity of demand for fertilizer is inelastic in the short-run and elastic in the long-run and that the demand has changed structurally between the 1949-60 and 1966-70 sub-periods. The policy implications of these results are discussed.