Author(s):

Mallikarjun Reddy, Ambrish Ganachari, Krishna S Maraddi and AS Police Patil

Abstract: The field experiment was conducted during 2014 and 2015 to assess the water saving, yield parameter, water use efficiency and economics of various drip irrigation systems like surface drip irrigation with mulching, surface drip irrigation without mulching and subsurface drip irrigation with each system having three sub treatment, viz. 80 100 and 120 per cent ET using drip irrigation. The above parameters are varied from season to season. For first season yield varied from 71.18 t/ha (80 per cent ET) of surface drip irrigation with mulching to 45.91 t/ha (120 per center) of subsurface drip irrigation and same trend followed in the second seasons. For first season (WUE) varied from 18.71 kg/m³ (80 per cent ET) of surface drip irrigation with mulching to 8.10 kg/m³ (120 per cent) of subsurface drip irrigation and same trend followed in the second seasons. The highest B: C ratio was found in 80 per cent ET (5.21) of surface drip irrigation with mulching and the lowest B: C ratio was found in 120 per cent ET (4.26) with subsurface drip irrigation and same trend followed in second season. The water saved in drip irrigation over 120% ET was found to be 32.90% and 16.5% for 80% and 100% ET respectively in first season and same trend followed in second season.

DOI: 10.22271/phyto.2020.v9.i3u.11489

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