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 field study was conducted over two years (during kharif and rabi seasons of 2013 and 2014) to evaluate the yield and returns from maize under different irrigation schedules and nitrogen levels at S.V. Agricultural College, wet land farm, Tirupati, Andhra Pradesh. During kharif, greengram was raised as bulk crop. The rabi maize experiment was laid out in a split plot design with three replications by taking four irrigation schedules as main plots and three nitrogen levels as sub plots. Yield of maize was found to be higher with weekly check basin method, which was on par to those obtained with drip irrigation at 0.9 IW/CPE ratio. With regard to nitrogen levels tried, these values were found to be superior with the nitrogen dose of 240 kg N ha-1. The interaction between the irrigation schedules and nitrogen levels indicated that higher yield was observed with scheduling irrigation either by weekly check basin method or by drip irrigation at 0.9 IW/CPE ratio along with 240 kg N ha-1. But the gross and net returns were higher with drip irrigation scheduled at 0.9 IW/CPE ratio along with 240 kg N ha-1. The experimental results revealed that growing of greengram preceded by maize was economical than maize alone and maize crop can be grown economically with limited water supply at 0.9 IW/CPE ratio through drip irrigation along with 240 kg N ha-1.
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