Vol. 69, No. 3, pp. 328-344, 2024 (Arabic) Alex. J. Agric. Sci. 328 DOI: 10.21608/alexja.2024.305709.1082 Economic Efficiency of Resources Used in The Production of The Most Important Varieties of Yellow Maize in Beheira Governorate Ahmed Mohamed Farrag Kassem*, Ramadan Ahmed Mohamed Hassn*, Abdelgaid Hamdy Fadlallh Abdelkawy Agricultural Economics Research Institute, Agricultural Research Center – Egypt. * Corresponding author: [email protected] ABSTRACT The results of the analysis of production inputs and outputs and economic indicators for the most important summer yellow maize varieties of Beheira Governorate showed that the research concluded that the singles variety 3444 achieved an increase in productivity per feddan of about 2 ardabs/feddan compared to the singles variety 3084 and 4.1 ardabs/feddan compared to the triple variety 374, which represents the percentage of increase. About 8.7%, 19.6%, and a decrease in total costs of about 7.4%, 11.8% compared to its counterpart of the previous two types, which resulted in an increase in the yield per feddan of that type by 7.4% over its counterpart, the singles type 3084, and about 17.5% over its counterpart, the triple type 374, this was reflected in an increase in the net return of variety 3444 by 40.3% and 129.4% over its previously mentioned counterpart, respectively, which resulted in an increase in all of (relative profitability, ratio of revenues to costs, and rate of return on the invested pound) by 54.8%, 15.4%, 51.2% compared to the singles variety 3084, and by 167.5%, 32%, 160% compared to the triple variety 374. Therefore, the most important varieties of summer maize in Beheira can be arranged according to productive and economic efficiency as follows: : Singles variety 3444 comes in first place, followed in second place by singles variety 3084, then triple hybrid variety 374 comes in last place. The results of estimating production functions for the most important summer maize varieties (singles variety 3444, 3084, triple hybrid 374) in Beheira Governorate revealed that there is a direct relationship between the production quantity of singles variety 3444, 3084, and the productive resources affecting the production of those varieties, the most important of which are human labor and the quantity of seeds. The amount of nitrogen fertilizer and the amount of pesticides has a positive effect. The estimation results show for the production function of the two aforementioned types has an increasing capacity return, and the value of the marginal product of the productive resources is higher than the price of the productive resource, therefore, the farmer of these varieties must increase the quantities used from the previous resources in production two varieties so that the value of the marginal product of each resource is equal to its price in order to increase its profits. As for the production function for the triple hybrid 374, the results resulted in a direct relationship between the quantity of production and the productive resources affecting the production of the variety, the most important of which is human labor, and the quantity of pesticides, as they have a positive effect, on the other hand, there is an inverse relationship between the quantity of production of the variety and the quantity of seeds and nitrogen fertilizer, which has a negative effect on the productivity of the variety, indicating the presence of wasteful use of suppliers, and therefore the farmer of the variety 374 must reduce the quantities used from suppliers. It was also shown from the estimation results that the overall elasticity of the function is A negative value means that the total product is decreasing, and the marginal product is negative, meaning that adding units of resources used during the stage is illogical. The triple hybrid 374 farmers can increase his production and profits by reducing the quantities used of resources that have a negative effect and increasing the quantity used of resources that have a positive effect. ARTICLE INFO Article History Received: 19/7/2024 Revised: 02/8/2024 Accepted: 03/8/2024 Key words: Economic efficiency, Resources productive, Varieties of yellow maize.