Two varieties of cotton (Niab-78 and Niab-92) were grown under furrow and alternate furrow irrigation methods. In alternate furrow irrigation, 40.61% less water was used. Water use efficiency in both the varieties was 22 and 21% higher in alternate furrow irrigation as compared to every furrow irrigation. Variety Niab-92 gave maximum water use efficiency in both the methods. Alternate furrow irrigation received less amount of water and produced almost the same yield as in every furrow irrigation method. Key words: alternate furrow irrigation, water use efficiency
