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AN ECONOMIC ANALYSIS OF THE EFFECT OF APPLYING ZINC AND PHOSPHORUS ON MAIZE GRAIN YIELD | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 38, Issue 5, 2007, Pages 7-14 | ||
| Authors | ||
| Mohammad A. I. Al-Hardan; Afaf S. Al-Hani | ||
| Abstract | ||
| Specialists in agricultural sciences carry out field experiments on fertilizers use on different field crops. The aim of such work is to determine the fertilizers quantities which are statistically significant in producing these crops. These quantities of fertilizers are the required quantities technically. On other side the agricultural economists analyze the results of these experiments to determine the optimum quantities of these fertilizers which achieve the economic efficiency to produce certain crop. In addition to the statistical criterion used by pure agricultural scientists, the agricultural economists uses other criteria in choosing the suitable production function such as biological, econometrical and economical. The aim of this work was to estimate the optimum level of the effect of interaction between Zinc and Phosphorus fertilizers which maximize profit for the production function of corn for the season 1999 for Abu-Ghraib experimental station. Seven production functions were estimated. The quadratic function was the most suitable function according to economic, biological, statistical and econometrical criteria. The results showed that the optimum level of phosphorus was 65 kgs / ha, while for zinc was 8 kgs / ha. | ||
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