ABSTRACT
The factor which relates these two elements, total amount of water and intensity of cropping, is known as the ‘crop factor’. A crop uses different amounts of water at different stages of its growth cycle and under different climatic conditions. In any irrigation scheme the more efficiently the water can be employed, the higher its duty and the larger the area of land that can be irrigated. The way in which irrigation actually takes place at the level of the individual ‘number’ and the individual tenancy, under the control of the tenants, differs from the procedures which are recommended and expected by the Sudan Gezira Board. In any irrigation scheme the more efficiently the water can be employed, the higher its duty and the larger the area of land that can be irrigated. In the final analysis, then, the way in which water is manipulated by the tenants reflects their evaluation of their place in the Scheme.
