Abstract
research aimed to study the determinants of economic efficiency and the amount of surplus the deficit in the quantities used in the production of dry onions (crystal) in Nineveh Governorate for the 2022 production season .The study included 52 farms that produce onions in the Sheikhan district.. Data on the study were obtained through a questionnaire form dedicated to this purpose and through interviews with farmers.. The variables studied included the quantity of production in Each farm as a dependent variable, and each of the ( area, seeds,no fertilizers, labor, mechanical work, pesticides, and irrigation hours) as independent variables, using the data envelopment analysis method and the statistical program Deap ). Economic efficiency results and components have The results of economic efficiency and, as well as determining the amount of surplus or deficit in each farm. Both economic, allocative, and economic efficiency in Palm reached an average of about (86%, 68%, 60%) in the research sample farms, respectively, while All farms included in the study achieved a surplus in the use of the quantity of resources, with the exception of the resource of irrigation hours, where the deficit rate reached an average of about 27% for the sample, while the rate of waste in the quantities of other resources ranged between 4.5% to 36%. The researcher recommends that farmers take care of price relationships and . Production in instalments or on deferred payments, and need to know the standard quantities of resources needed by crops and follow scientific instructions
