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Assessment of Crop Water Footprint for Different Varieties of Groundnut (Arachis hypogaea)

DOI: 10.18805/IJARe.A-5831    | Article Id: A-5831 | Page : 189-194
Citation :- Assessment of Crop Water Footprint for Different Varieties of Groundnut (Arachis hypogaea).Indian Journal of Agricultural Research.2022.(56):189-194
J. Ramachandran, R. Lalitha, S. Vallal Kannan, K. Sivasubramanian eeesurya.tnau@gmail.com
Address : Department of Agricultural Engineering, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai-625 104, Tamil Nadu, India
Submitted Date : 27-05-2021
Accepted Date : 17-08-2021

Abstract

Background: Water Footprint is a recently used indicator which helps to reduce water depletion and alleviate water stress in areas of drought and proper crop cultivation. Hence a study was taken up to assess the crop water footprint of different groundnut varieties namely TMV 7, VRI 2, VRI 3, VRI Gn 5, VRI Gn 6, CO 3, CO Gn 4, ALR 3 and TMV Gn 13 cultivated during Kharif and Rabi seasons at Tiruchirapalli district of Tamil Nadu.
Methods: The total water requirement, blue and green crop evapotranspiration, blue and green crop water use and total water footprint for different varieties of groundnut were estimated using CROPWAT 8.0 Windows. A comparison was made between the water footprint of groundnut varieties and the strategies to reduce water footprint is presented.
Result: The total water footprint for groundnut varieties ranged from 2603 to 4889 m3 ton-1 (CV of 26%) during kharif season, while it was ranged from 1465 to 2470 m3 ton-1 (CV of 18%) during rabi season. It was found that in all groundnut varieties the blue water footprint is higher than the green water footprint, while VRI Gn 5 variety had minimum total water footprint. It was concluded that, the groundnut production is affected by different levels of blue water stress which requires effective irrigation practices and water management strategies to enhance the crop production.

Keywords

Blue and green water footprint Crop evapotranspiration Groundnut

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