Estimation of potato yield using FAO AquaCrop model under different irrigation schedules | FAO AquaCrop modeli kullanılarak farklı sulama programı koşullarında patates bitkisinde verim tahmini
Bayhan, D.
AquaCrop simulates attainable yields of major herbaceous crops as a function of water consumption under rain-fed, supplemental, deficit, and full irrigation conditions that was developed by United Nations Food and Agriculture Organization (FAO) in 2009. The growth engine of AquaCrop is water-driven. Input consists of weather data, crop and soil characteristics, and management practices (irrigation, fertilization etc.) that define the environment in which the crop will develop. The model separate evapotranspiration which into soil evaporation and crop transpiration avoids the confounding effect of the non-productive consumptive use of water (soil evaporation) and instead of leaf area index AquaCrop uses green canopy cover to express foliage development.In this study, two different irrigation scheduling made by using the average long term monthly climate data and inputs of the potato cultivation which has got large-scale farming in South Marmara and aimed to develop irrigation schedules and yield estimation under drip irrigation method.In the first irrigation schedule (S1), the irrigation were made whenever the water level in root zone depletes to the stomata closure level which was determined before and the water was added up to field capacity. In the second (S2), the irrigation were made whenever the water level in root zone depletes to the half of the critical water level of S1 to field capacity. According to water conservation, irrigation schedule of S1 have come into prominence than S2. The proximity of yields was due to the same values of crop growing periods which is transferred the model.
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