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 |
A study was conducted to ensure the impact of subsurface drainage system on salt affected soils in the UKP command area, Karnataka. The in-situ hydraulic conductivity with average of 0.067 m d-1 before sowing, and improved slightly (14.92%) after the harvesting to 0.077 m d-1.The geometric mean estimates of areal hydraulic conductivity obtained with 90 per cent confidence limits ranged from 0.69 to 1.280 m d-1 (K) and 0.88 to 1.620 m d-1 (Kb). Further, the areas estimates of K were far greater (15 to 16 times) than the in-situ measurements of K. The infiltration rate was very low due to considerable amount of clay (32-41%) and it improved slightly (by 5.45%) due to SSD system after the harvesting (2.90 mm h-1) compared to that before sowing (2.75 mm h-1).The B: C ratio, NPV, IRR and payback period were1.55, Rs. 2, 20, 832, Rs.104 per cent and 2 for the life span of 50 years for SSD system respectively.
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