دراسة اقتصادية للتركيب المحصولي المقترح في ظل الموارد الزراعية المتاحة في مصر

Abstract EN

The objective of the study is to achieve the optimum crop composition under the available agricultural resources in Egypt for the average period (2012/2013- 2016/2017) by achieving the best model of cropping composition which maximizes the net yield.

maximizes the net return of the irrigation unit.

and maximizes the water needs of the agricultural activities under study.

The study relied mainly on the use of linear programming method through the three different models and reached to the following results: The linear programming analysis models for the crop composition included 35 activities .It is about 11878.97 thousand feddan for the average period of study and the volume of water resources available for crop activities in linear programming models about 31466.88 million 3m /fed .such as water resource constraint .

While.

the first model (maximizing the net yield) as the highest fedani’s net income compared to three models estimated at 72856.6 million pounds /fed.

with an increase of about 6313.6 million pounds/fed.

with percentage 8.67% for the current crop composition of about 66542.92 million pounds/fed.

The second model (maximizing the net irrigation unit) achieved the highest return on water unit estimated at 34290.5 thousand pounds /m3 and by 9.88% of the current crop composition of 31179.38 thousand pounds /m3.

But the third model (minimize water needs) its water needs reached about 30852.03 million m3/fed with a surplus of about 6140.85 million m3/fed with percentage 2% from the current crop composition of about 31466.88 million m3/fed.

The study recommends the following: • The necessity of applying the first model (maximizing the net yield of orchard) which maximizes the profitability of the landfill by 6313.65 million m3 /fed of the current crop composition and maximizes the unit net revenue of 3063.77 thousand pounds /fed and reduces water needs by 365.22 million m3/fed.

• The necessity of using modern irrigation systems to reduce water needs and achieving surplus of irrigation water directed horizontal expansion to achieve selfsufficiency in different crops.