In this paper was analyzed on agrarian sector in Khorezm (Uzbekistan). The main idea of this paper is to analyze relationships between agriculture and productive process with water resources used by them. The first goal is to analyze estimating method of virtual water in rice plant, cotton and grain crops which highest water consumption. On the analyzing process not only growing production which demanded less water, also it is too important opportunities to save water. On the way of saving environment and water resources, we based that changing more important to use water in agricultural sector and wide fields.