Using AquaCrop model to derive deficit irrigation schedules for improved irrigation water management for tomato production in Zimbabwe

Increasing scarcity and unreliability of rainfall, the absence irrigation schedules are challenges to decision-making, particularly for viable tomato (Lycopersicon esculentum Mill) production in Zimbabwe. The objective this study was determine water requirements as a basis developing generic calendar guidelines more efficient management Harare, We explored options improving traditional, dry supplementary wet season practices. By considering archived climate data thirty years (1991-2021) Harare; model-simulated consumptive use from 2014 2017 at Thornpark Research Station, together with crop soil characteristics; method; an developed using AquaCrop model 5.0. improved schedule cultivation 60% ETc, resulted 471.6 mm, yield 3.40 t ha-1; compared 820 mm 1.118 season. Through model, we have been able estimate time interval between previous next any date growing Therefore, year-round irrigated may be feasible added advantage 2.28 ha-1 obtainable rainy periods.