Evaluation of soil water losses under irrigation saving techniques in a semi-arid region in Tunisia

نویسندگان

چکیده

Abstract In arid and semi-arid regions, managing agricultural water for irrigation is essential to cope with scarcity maximize crop yields. this study, an experiment was conducted on a potato in the Manouba region (lower valley of Medjerda, Tunisia). The experimental protocol consisted four treatments utilizing water-saving techniques: FI (Full Irrigation 100%): 100% requirements. DI (Irrigation 75%): deficit application 75% PRDRight 50% right side): by partial root drying. PRDLeft left Simulation soil profiles carried out Hydrus-1D model. hydraulic properties were calibrated according conditions using inverse modeling technique. According obtained results, simulated close those measured. Indeed, calculated NRMSE values are low, indicating reliability as decision support tool optimize management. These results then used investigate effects 2 °C temperature increase loss, it determined that impact insignificant.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

increased water productivity of wheat under supplemental irrigation and nitrogen application in a semi-arid region

limitations of water and nitrogen in soil usually restrict plant growth. the objective of this study was to evaluate the effects of different amounts of supplemental irrigation at different growth stages and application of different rates of nitrogen fertilizer on grain yield and water productivity of wheat cultivars. a field experiment was conducted in the agricultural research station of shah...

متن کامل

Modelling evaporation and drift losses in irrigation with medium size impact sprinklers under semi-arid conditions

A proper understanding of factors affecting evaporation and drift losses in sprinkle irrigation is important for developing water conservation strategies. For estimating drift and evaporation losses during the set sprinkler irrigation event, several outdoor single-sprinkler and block irrigation tests have been conducted. Various sprinkler±nozzle±riser height combinations were used and the varia...

متن کامل

Evaluation of Eight Evaporation Estimation Methods in a Semi-arid Region (Dez reservoir, Iran)

Establishing satisfactory estimation methods of lake evaporation has been crucial vital for research and management of water resources and ecosystems. Determining the accurate method to estimate evaporation from reservoirs in the investigation and management of water resources is very important. Hence, in this study eight empirical methods such as; Makkink, DeBruin-Kejiman, Penman, Priestley-Ta...

متن کامل

Evaluation of Eight Evaporation Estimation Methods in a Semi-arid Region (Dez reservoir, Iran)

Establishing satisfactory estimation methods of lake evaporation has been crucial vital for research and management of water resources and ecosystems. Determining the accurate method to estimate evaporation from reservoirs in the investigation and management of water resources is very important. Hence, in this study eight empirical methods such as; Makkink, DeBruin-Kejiman, Penman, Priestley-Ta...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Water Science & Technology: Water Supply

سال: 2023

ISSN: ['1606-9749', '1607-0798']

DOI: https://doi.org/10.2166/ws.2023.128