Evaluation of the FAO Aqua-Crop model for Durum wheat (Triticum durum Desf.)on the eastern Algeria under semi-arid conditions

Abstract

The relative yield decline that is expected under specific levels of water stress at different moments in the growing period is estimated by integrating the FAO Ky approach in the soil water balance model BUDGET. FAO recently developed a water-driven model (Aqua-Crop) for use as a decision support tool in planning and scenario analysis in different seasons and locations. The Aqua Crop model was evaluated with experimental data collected during three cropping seasons; the field experiments were conducted in Setif, Algeria. The objective of the study is to quantify the water stress based on estimation of evapo-transpiration by Aqua Crop model in Durum wheat under stressed conditions.The results of this study proved the efficiency of the Aqua Crop model to quantify the water stress. Total water stress during three cropping seasons (2010)(2011)(2012)(2013) ranged between 0.15 (15%) at Double ridges to anthesis stage to 0.56 (56%) at Anthesis to maturity stage. The AquaCrop model can adequately quantify water stress and can be used to explore management options to improve wheat water productivity.

Agricultural Monitoring, an Automatic Procedure for Crop Mapping and Yield Estimation: The Great Rift Valley of Kenya Case

“…Model performances could become unsatisfactory in severely stressed environment. Observations made about a general season under/overestimation are quite similar to the ones reported by [76]- [79]. The model performance requires a broader validation according to the different possible calibrations over a wider availability of sample sites and agricultural species.…”

Evaluation of Change on the Structural Quality and Organic Matter the Soil Induced by No-till Chronosequence under Semi-arid Climate in Algeria

“…This region is characterized by a semi-arid climate type with an annual rainfall of 380 mm and mean temperature of 13.7C (Kribaa et al, 2001). Several no-till trials have been conducted in this region under the responsibility of the Technical Institute of Great Cultures (ITGC) in order to increase wheat production and protect soil against erosion (Ali et al, 2017). Four plots were selected on the basis of homogeneity the climate, slope, soil texture and wheat cultivation.…”