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Crop yield response to water - Cra

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figure 3 An example of the progress of green canopy cover through a crop life-cycle under non-stressconditions, for maize.MeasuredSimulated10080Canopy cover (%)60402000 20 40 60 80 100 120 140Days after planting (DAP)figure 4 Schematic representation of a generalized rooting depth with time, in the presence (dashed line)and absence (full line) of a restrictive soil layer limiting root development.SowingTransplantingTimeZnEffective rooting depth (Z)Z x (restrictive soil layer)Z xZ x = Maximum effective rooting depthZ n = Minimum effective rooting depthAqua<strong>Crop</strong>: concepts, rationale and operation 23

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