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Estimation of Evapo-Transpiration for Different Crops in Kudachi Rural Area by the FAO56-PM Method


Namrata Angadi , KLS's Gogte Institute of Technology, Belagavi


Crop Coefficient, Crop Evapotranspiration, FAO56-PM Method, Agricultural Plantations, Reference Evapotranspiration


The evapotranspiration and irrigation water demand calculations are to be used in design and management of irrigation systems, for water rights management and consumptive water rights transfer and for hydrologic studies. This paper presents application of Penman-Monteith equation standardized by the Food and Agricultural Organization (FAO56-PM) at the same time with crop constant approach for the estimation values of reference evapotranspiration (ETo) and crop evapotranspiration underneath standard conditions (ETc) from different land use/land cover. Daily meteorological data (Jan 2012-Dec 2014) of Kudachi area were collected from Agricultural Department and is of an area of 6200 hectares, out of which 5243 hectares is used as a agricultural plantation and is used in quantification of evapotranspiration. Kudachi rural area covers 13 types of major Agricultural Plantations. The reference crop that used for calculating ETo was considered as a hypothetical crop with an assumed height of 0.12m having a surface resistance of 70 ms-1 and an albedo of 0.23. The results obtained from this study is beneficial to include the fundamental components of managing water resources efficiently, and additionally an important factor in computing water balance, irrigation system design and management, crop yield simulation and hydrologic studies.

Other Details

Paper ID: IJSRDV5I41293
Published in: Volume : 5, Issue : 4
Publication Date: 01/07/2017
Page(s): 1102-1105

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