This research aims to conduct a descriptive and econometric
analysis of the costs functions of rain fed barley in the first, second and
third stabilization zones in Al - Hasakah governorate, and to determine
the optimum sizes for production and th
e profit-maximizing size. Data
were collected through a questionnaire for rain fed barley farmers in the
study area for the average season (2015 / 2016-2016 / 2017).
The aim of this research is to estimate the structure of production
costs and consequently to derive the economies of scale for the
irrigated tomatoes crop in Al Hasskae region. The search is adopted
on the questionnaire method for sample included
(15) village by
using random sample of villages in AL-Hassake region, and the
number of sampled population (100) farmer to the season
2012/2013, 2013/2014.