ASA Southern Branch 2007 Annual Meeting
February 4-6, 2007
Mobile, AL

Sunday, 4 February 2007

Lemon grass as a new essential oil crop for Mississippi.

Valtcho D. Zheljazkov, Mississippi State, North Mississippi Research and Extension Center, 5421 S Hwy 145, Verona, MS 38879

Lemon grass (Cymbopogon flexuosus (Steud.) Wats. = Andropogon nardus var. flexuosus Hack = Andropogon flexuosus Nees) is a perennial grass, cultivated as an essential oil crop in Southern India, Indonesia, and Madagascar.  Two field experiments were conducted in 2006 in Mississippi to evaluate lemon grass as an essential oil crop for Mississippi.  The first experiment studied the effect of location (Poplarville, Stoneville, and Verona), N (0, 80, 160, and 320 kg/ha) and S (0, 30, 60, and 90 kg/ha) on lemon grass productivity and oil content and composition.  The second experiment studied the effect of harvesting time and soil type on oil productivity and quality.   Overall, lemon grass grew well in all three locations, but highest yields were achieved in the most northern part of Mississippi (Verona).  N fertilization increased yields, although not linearly, while S application did not significantly increased yields.  Oil content and composition varied depending on location and N application.  Although the 2006 results are encouraging, more research is needed to complete the evaluation of lemon grass as a new essential oil crop for Mississippi and possibly other part of the Southern US.

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