National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Groundwater sharing using Community Based Sprinkler Irrigation System (CBSIS) is an optimal way of using groundwater to protect kharif crops in semiarid regions. CBSIS designs were studied in three mandals viz. Garladinne, Nallamada and Goothy of Ananthapur district, Andhra Pradesh in India. The study aims to assess the existing irrigation system designs and to evaluate the existing operational schedules and preparation of optimal operational plans in terms of equity of water sharing. The major findings in the sites are to fix the overhead sprinklers at 30 or 50 percent overlapping. Instead of giving one or two critical irrigations, it is possible to provide recommended irrigation schedules even in Non Bore Well Owners (NBWO) land by adopting crop wise operating schedules for the three groups with the available water. Sprinkler heads which are presently used can meet the crop water requirement (CWR) of groundnut within 16 to 18 min during kharif and rabi seasons respectively. Total number of irrigations required for groundnut during kharif and rabi are 10 and 12 respectively with an irrigation frequency of 11 days (without considering rainfall). Following the recommended schedules Mahabubsubhani group can irrigate 14.7 ha/day whereas Eedulavanka group and T-Kothapally group can irrigate to 6.26 ha/day and 4.7 ha/day respectively.
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