THE RESEARCH aims mainly to study the economic efficiency of using resources
in producing sugar beet in Kafr El-Sheikh Governorate, and to estimate the optimal
volume of production and its bulk of profits. The research relied on published and unpublished
secondary data and field data for a random sample that was collected during the 2019/2020
production season, using a personal interview questionnaire, using a descriptive and inferential
analysis of the data and estimating some indicators of productive and economic efficiency.The
results indicated that there is an effect of each area, human labor, nitrogen fertilizer, phosphate
fertilizer, potassium fertilizer and the value of pesticides on sugar beet production in Kafr El-
Sheikh Governorate, as indicated by the estimation of the functions of sugar beet costs in Kafr
El-Sheikh Governorate that the optimal volume of production for the three groups, respectively
24.50, 24.2 and 24.75 and the optimum capacity, respectively, is 1.05, 1.25 and 1.54 acres, and
the volume of maximum production profits was estimated at 25.05, 25.4 and 25.55 tons / acre.
The necessity of rationalizing the use of potassium fertilizer for the first category fields, as it
became clear that increasing this resource by 10% would lead to a decrease in productivity by
about 1.6% of it due to its negative marginal productivity.Working to rationalize the use of
human labor for the second category farmers, as it was found that an increase in human labor
by 10% leads to a decrease of 4.9% in the output.Rationalizing the use of potassium fertilizers,
the value of pesticides, as it was found that increasing each of them by about 10% leads to a
decrease in the output by 18.3% and 8.6%.