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  • Effect of different soil moisture regimes on plant growth and water use efficiency of Sunflower: experimental study and modeling

    • Authors: Soothar, Rajesh Kumar;  Advisor: -;  Participants: Singha, Ashutus; Soomro, Shakeel Ahmed; Chachar, Azhar-u-ddin; Kalhoro, Faiza; Rahaman, Md Arifur (2021)

  • This study was based on completely randomized block design with three treatments including T1 (30% soil moisture depletion), T2 (50% soil moisture depletion) and T3 (70% soil moisture depletion) with three replicates. In order to determine the crop water requirements under desired treatments, the gypsum blocks were used for computing the daily soil moisture depletion. The result shows that total volume of water applied to crop under T1, T2 and T3 was 9689, 5200 and 2045 m3 ha−1, respectively. As a result, the grain yield under T1, T2 and T3 was 13.2, 12.1 and 14.3 t ha−1, respectively. These results advocate that total yield of crop under T1 and T2 was less as compared to T3. The T3 g...
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  • Evaluation of swat model performance to hydrologic cycle simulation in the Cong watershed, Vietnam

    • Authors: Nguyen Viet Anh;  Advisor: -;  Participants: - (2019)

  • In this study, performance of semi-distributed hydrologic model, namely Soil and Water Assessment Tool (SWAT), was evaluated for hydrologic cycle simulation in the Cong Watershed.. The model parameters were calibrated and validated using meteorological data observed at five gauges and runoff data observed at Tan Cuong Station between 1961 and 1975. Quantitative statistical criteria such as Nash-Sutcliffe Efficiency (NSE) and Coefficient of determination (R2) were used to evaluate the model performance on daily river flow simulations. As a result, the calibrated model performed well in hydrologic cycle simulations in the Cong Watershed, suggesting the applicability of the SWAT model to...