Adverse Effect on Yield Due to Water Logging in Godavari Basin-India
Dhavaleswar Rao Bhandaru1, RVRK Chalam2, Reshma Tabassum3, S.S. Asadi4
1Dhavaleswar Rao Bhandaru, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation Deemed to be University, Guntur (A.P), India.
2RVRK Chalam, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation Deemed to be University, Hyderabad (Telangana), India.
3Reshma Tabassum, Deputy Executive-Engineer (Irrigation) Government of (Telangana), India.
4SS. Asadi, Department of Civil Engineering, Vignan’s Foundation for Science, Technology and Research, Deemed to be University, (A.P), India.
Manuscript received on 03 May 2019 | Revised Manuscript received on 15 May 2019 | Manuscript Published on 28 May 2019 | PP: 620-626 | Volume-7 Issue-6C2 April 2019 | Retrieval Number: F11130476C219/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The analysis of the data of Sri Rama Sagar Project in Godavari Basin reveals that there were many adverse impacts of mismanagement of surface irrigation such as water logging, soil salinity and alkalinity,. The increased water logging area of fertile land was rendered un-fit and unproductive in almost all the water logged areas of the project. The personal studies were made by visits to the sites of the six villages under this project. The data for the total production loss from the two major crops Rice, Ground Nut during the period of 5 years in both Kharif and Rabi for the affected areas of water logging, salinity/alkalinity is worked out. Many of the common field crops are affected when the Ec value is in the range of 4-8mm hos/cm, crops with high salt tolerance can grow satisfactorily, when the Ec values are between 8 and 16 mm hos/cm. The salt tolerance characteristics of some common crops are presented. Soil pH is one of the most important parameters which influence plant growth. However, there is a decreasing trend in crop yields per hectare due to water logging salinity/alkalinity. Hence, in brief, the total production loss from the two major crops in the study area during the period of 5years in both Kharif and Rabi due to mismanagement, and consequent problems of water logging, salinity/alkalinity is worked out to the order of millions of rupees. Hence, drainage is made a pre-requisite, even at the stage of planning canal irrigation projects in order to avoid huge social costs due to water logging and salinity.
Keywords: Soil Salinity/Alkalinity, Water Logging, Reclamation. Leaching, Drainage.
Scope of the Article: Water Supply and Drainage