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Accounting for Irrigation Water Savings and Returns in Carrot (Daucus carota L.) Grown under Different Drip Irrigation Levels

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Benedicto Benson Longwe, Vijaya B. Wali

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Abstract

Indian Journal of Economics and Development
Year : 2016, Volume : 12, Issue : 4
First page : ( 819) Last page : ( 822)
Print ISSN : 2277-5412. Online ISSN : 2322-0430.
Article DOI : 10.5958/2322-0430.2016.00213.4

Accounting for Irrigation Water Savings and Returns in Carrot (Daucus carota L.) Grown under Different Drip Irrigation Levels

Longwe Benedicto Benson, Wali Vijaya B.*
Department of Statistics, University of Agricultural Sciences, Raichur-584 104, (Karnataka)

*Corresponding author’s email: vbw06@rediffmail.com

JELCodes: Q16, Q25, Q26, Q55

Online published on 12 December, 2016.

Abstract
An experiment was conducted to assess the performance of carrot sown under different drip irrigation levels in order to quantify water savings and economic gains in 2014–15. Four irrigation treatments were used in Randomized Complete Block Design with four replications. The treatments were four drip irrigation levels T1, T2, T3 and T4 corresponding to 60, 80, 100 and 120 percent of evapotranspiration and T5 a surface irrigation was taken as a control. Irrigation water was quantified based on stages of growth of the crop and at harvesting with T1 registering a total usage of 2595, 3450 for T2, 4304 for T3 and 5159 for T4 m3 ha−1 at harvesting. T1 had the highest (58.4 per cent) amount of water saved over T4 and lowest (17.6 percent) by T3. Economically, the best B: C ratio was found in T2 (5.0) and least in T4 (3.6). The water saved over T4 treatment resulted in highest incremental returns of 395700 in T1 and lowest of 85620 in T3 while comparing with T3 (100 percent ET), the best returns were from T1 and T4 registered a loss. It can be concluded that it is economical to produce carrot under drip irrigation at 60 percent irrigation level for maximum water saving and at 80 percent irrigation level for maximum yield and returns.