Economic analysis of potato, corn, and wheat response to nitrogen and phosphorus application in the highlands of Ecuador
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"Objectives: 1. To predict a production function relating the effects of topdress nitrogen and phosphorus on potato yield. 2. Estimate the resulting yield of potatoes per hectare for specified nitrogen and phosphorus applications. 3. Calculate the combinations of nitrogen and phosphorous required to produce specified yields (iso - quants) of potatoes and corresponding marginal rates of substitution. 4. To estimate the optimum level of application of one nutrient when the level of the other is considered to be fixed at different levels and with specific potato price relationships. 5. Estimate the minimum cost combinations of nitrogen and phosphorus for specified potato yield levels and varying price ratios. 6. Determine the optimun combination of nutrients (nitrogen and phosphorus) for specific potato price relationships. 7. Estimate the production function and the optimun combination of nutrients for current price relationships for corn and wheat."--Page 12.
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