Effect of irrigation and nitrogen on herbage, oil yield and water use of lemongrass (Cymbopogon flexuosus) on alfisols

Singh, M.

Journal of Agricultural Science 132(2): 201-206


ISSN/ISBN: 0021-8596
DOI: 10.1017/s0021859698006236
Accession: 003109253

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A field experiment was conducted with lemongrass (Cymbopogon flexuosus) at Bangalore, India during 1993-95 under three oil moisture regimes (0.75, 0.50 and 0.25) irrigation water:cumulative pan evaporation (IW:CPE) ratios and four rates of nitrogen application (0, 50, 100 and 150 kg ha-1). The soil moisture regime maintained at 0.75 IW:CPE ratio significantly increased crop growth characters such as plant height, leaf area index, herbage and essential oil yields, compared with those having 0.25 and 0.50 IW:CPE ratios. An application of 100 kg N ha-1 was found to be optimal for crop yield. Oil content and quality of oil were not affected by irrigation and nitrogen rates.