عنوان مقاله [English]
Improving water productivity in food production has been a basic global issue, especially in countries with limited water resources like in Iran. On the other hand, among agricultural crops, wheat is a strategic product and has a significant cropping area and plays an important role in feeding people. Based on the above, and also considering that one of the recommended strategies for coping with water scarcity is the implementation of agricultural water productivity system in the country's water management structure, In the present study, using the method of estimating the production functions and choosing the superior production function and panel data of 2005-2014, to estimate the effects of Physical water productivity on wheat production in the major provinces of wheat (Isfahan, Khorasan Razavi, Khuzestan, Golestan and Fars). The results of Physical water productivity between selected provinces showed that the index in the studied periods was 1.9 kg / m3. this means that on average, an increase of one cubic meter of water will increase about two kilograms per hectare of wheat production in these periods.