Biomass and essential oil yields of rainfed palmarosa (Cymbopogon martinii (Roxb.) Wats. var. motia Burk.) supplied with different levels of organic manure and fertilizer nitrogen in semi-arid tropical climate
2001; Elsevier BV; Volume: 14; Issue: 3 Linguagem: Inglês
10.1016/s0926-6690(01)00081-4
ISSN1872-633X
Autores Tópico(s)Polysaccharides Composition and Applications
ResumoA field investigation was carried out for 2 years (1994–1996) on a red sandy loam soil in the semi-arid tropical climate of South India, to study the influence of different levels of farm yard manure (FYM) (0 and 15 t/ha per year) and fertilizer nitrogen (0, 40, 80 kg N/ha per year) on the biomass and essential oil yields of palmarosa (Cymbopogon martinii (Roxb.) Wats. var. motia Burk., family, Poaceae) grown under rainfed condition. During the period of investigation, palmarosa gave seven harvests in 2 years with 23.6–37.2 t/ha total (total of seven harvests) biomass yield, and 99.2–159.1 kg/ha total essential oil yield per hectare. Application of FYM at 15 t/ha per year increased the total biomass yield by 10.7% and total essential oil yield by 10.3% over control (no application of FYM). Addition of nitrogen (N) at 80 kg/ha per year enhanced the total biomass yield by 57.6% and total essential oil yield by 60.3% in comparison to no N application. The quality of the essential oil with 1.7% (E)-β-ocimene, 2.5% linalool, 73.1% geraniol, 15.8% geranyl acetate and 2.0% β-caryophyllene was found to be good and was readily accepted in the market.
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