Crop growth can be simulated under different water application using simulation models. The main\r\npurpose of deficit irrigation is high water productivity with less application of water to plants. In this\r\nresearch, the potential of AquaCrop to simulate the growth of cabbages in Keiyo Highlands (0?22?45??N\r\nand 35?32?9?, 2586 m.a.s.l) under nine different irrigation treatments in the dry season between\r\nDecember to February was studied. Statistical comparisons of observed and simulated biomass\r\nshowed that R2 = 0.96, Root mean square error (RMSE) = 0.38 tons and coefficient of residuals = -0.17.\r\nThe results showed that the model overestimated the biomass of cabbages. The model also provided\r\nexcellent simulation of canopy and yield. In this study water productivity of 17 g/cm2 and Harvest index\r\nof 76% were found for cabbages.
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