Authors
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Guram Mosiashvili
Director of Hydroway
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Olgha Kharaishvili
Senior Researcher of the Department of Irrigation and Drainage of the Tsotne Mirtskhulava Institute of Water Management of the Technical University of Georgia Academic Doctor of Agriculture, Associate Professor of the Faculty of Agricultural Sciences and Biosystems Engineering, Department of Agricultural Engineering of the Technical University of Georgia
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Nino Mebonia
academic doctor of agriculture, associate professor, Faculty of Agricultural Sciences and Biosystems Engineering, Department of Agroengineering, Technical University of Georgia
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Lali Baidauri
Academic Doctor of Agriculture, Associate Professor, Faculty of Agricultural Sciences and Biosystems Engineering, Department of Agronomy, Technical University of Georgia
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Dali Baidauri
Academic Doctor of Agriculture, Associate Professor, Faculty of Agricultural Sciences and Biosystems Engineering, Department of Agronomy, Technical University of Georgia
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Khatuna Kiknadze
Senior Researcher of the Irrigation and Drainage Department of the Tsotne Mirtskhulava Water Management Institute of the Technical University of Georgia
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Maya Kikabidze
Scientific employee of the Irrigation and Drainage Department of the Tsotne Mirtskhulava Institute of Water Management of the Technical University of Georgia, Academic Doctor of Agriculture, Department of Agricultural Engineering, Faculty of Agricultural Sciences and Biosystems Engineering of the Technical University of Georgia, Associate Professor
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Natia Suxiashvili
Academic Doctor of Agriculture, Faculty of Agricultural Sciences and Biosystems Engineering, Department of Agronomy, Technical University of Georgia
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Ketevan Beriashvili
Academic Doctor of Agriculture, Associate Professor, Faculty of Agricultural Sciences and Biosystems Engineering, Department of Agronomy, Technical University of Georgia
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Laura Toklikishvili
employee of Tsotne Mirtskhulava Aquaculture Institute of Technical University of Georgia
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Nanuka Kochlamazashvili
Master of Science, Department of Agronomy, Faculty of Agricultural Sciences and Biosystems Engineering, Technical University of Georgia
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Darakhvelidze Giorgi
Master of Agricultural Engineering Department, Faculty of Agricultural Sciences and Biosystems Engineering, Technical University of Georgia
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Saba Dolidze
student of the Faculty of Agricultural Sciences and Biosystems Engineering of the Technical University of Georgia
Keywords:
evapotranspiration, temperature, air humidity, wind speed, Atmospheric pressure, psychrometric constant, , vapor pressure, non-terrestrial radiation
Abstract
The correct selection of agrometeorological factors, irrigation techniques and regime is important for obtaining a quality harvest of agricultural crops, taking into account the current global climate change.
The primary determinant of agricultural development is the achievement of a high level of production, which will enable the population to meet their demand for food products, while the industry will be provided with agricultural products.
Consideration of evapotranspiration is an important factor in determining plant water requirements and water availability.
18 stages of practical determination of evapotranspiration were determined in the pilot territory of Doesi village: stage 1 - average temperature of the day; Stage 2 - daily average solar radiation (RS); Stage 3 - wind speed (U2); Stage 4 - Slope of saturated steam pressure curve ⍙; Stage 5 - atmospheric pressure (p); Stage 6 - psychometric constant γ; Stage 7 - (DT) auxiliary report for determining the duration of radiation; Stage 8 - (PT) auxiliary report for determination of wind duration; Stage 9 - simultaneous influence of temperature and wind speed ET0; Stage 10 - Saturated vapor pressure obtained from air temperature data; Stage 11 - actual vapor pressure (ea) based on relative humidity data; Stage 12 - Earth - Sun's inclination (δ); Stage 13. Conversion of longitude from degrees to radians; Stage 14 - sunset angle; stage 15 - extraterrestrial radiation; Stage 16 - solar radiation on a cloudless day (Rso); Stage 17 - pure short-wave radiation (Rns); Stage 18 - pure reflected long-wave solar radiation (Rn????);
Knowledge of environmental factors and their practical use from an agrobiological point of view is very important for normal plant growth and development. The selection of existing, used, less used and unutilized soil water-aerial regime, based on scientific foundations, ensures the increase of soil fertility.
Economical and efficient use of existing water resources is directly related to operation and proper design of irrigation systems.
The agro-climatic resources of the Shida Kartli region are effectively used in the paper in order to correctly determine the plant's water requirement taking into account evapotranspiration.
How to Cite
Guram Mosiashvili, Olgha Kharaishvili, Nino Mebonia, Lali Baidauri, Dali Baidauri, Khatuna Kiknadze, Maya Kikabidze, Natia Suxiashvili, Ketevan Beriashvili, Laura Toklikishvili, Nanuka Kochlamazashvili, Darakhvelidze Giorgi, & Saba Dolidze. (2024). Practical stages of evapotranspiration calculation. Interdisciplinary Science Studies, (5). Retrieved from https://ojs.scipub.de/index.php/ISS/article/view/3162
Section
Agricultural Sciences