Abstract
This paper presents the results of a study of light interception and evaporation from a sugar cane/maize intercrop in Mauritius. Data are presented for trials carried out during the 1987 first ratoon and these are compared with published data from the previous 1986 plant cane season. In both years soil evaporation was substantial, ranging from 15 to 70% of total evaporation, depending on canopy cover. The ability of the sugar cane to compete with the maize for light and water was very different in the two years. The total water requirement of the mixed crop, estimated using potential evaporation and crop factors, was frequently very different from the measured crop water use. Throughout both seasons the water use of the maize was consistently underestimated and that of the cane overestimated.
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