Utilization of the rain-use efficiency factor for determining potential cattle production in the Mendoza plain, Argentina

Potential cattle production in the plain of Mendoza was estimated from the dependable rains (f 0•80/mean) and the rain-use efficiency (RUE) factor. Herbaceous and browse RUE factors were derived from data obtained from the African Sahel, which has ecological and range conditions similar to the study area. Grazing livestock population and total carrying capacity were equivalent. Through the incorporation of available production technology, cattle productivity could be 70% above the actual productivity. The use of RUE factor gave carrying capacities that vary from 16 to 100 ha per animal unit, figures in line with values empirically used in the study area.