• Abstract

    Java citronella (Cymbopogon winterianus) is an important aromatic crop widely cultivated for its essential oil, which is highly valued in the perfumery, cosmetic, and pharmaceutical industries. Optimizing fertilization strategies is crucial for enhancing both the yield and quality of essential oil production. This study evaluates the effects of organic manures, inorganic fertilizers, and their combinations on the essential oil yield and composition of Java citronella. A field experiment was conducted using a randomized block design with six treatments and three replications. Fresh aerial biomass of Java citronella was chopped and subjected to hydrodistillation using a Clevenger-type apparatus to extract the essential oil. The chemical composition of the essential oils was analyzed using gas chromatography–flame ionization detection (GC–FID) and gas chromatography–mass spectrometry (GC–MS). The results indicate that integrating organic and inorganic fertilizers significantly improves essential oil yield. The highest yield (1.75%) was obtained from the treatment combining chemical fertilizers with cow manure (T4), followed by the combination with chicken manure (T5) at 1.58%. In contrast, individual applications of organic (T2, T3) or inorganic (T1) fertilizers resulted in moderate improvements, while the control treatment (T0) recorded the lowest yield (0.96%). Fertilization also influenced the essential oil composition, with the highest citronellal content (41.86%) observed in T4, followed by T5 (38.15%). Additionally, geraniol and citronellol concentrations increased with fertilization, highlighting the role of nutrient availability in essential oil biosynthesis. These findings suggest that an integrated fertilization approach is the most effective strategy for maximizing Java citronella essential oil production. Future studies should focus on long-term soil health, sustainability, and economic feasibility to establish best practices for large-scale cultivation.

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Giang, T. V., & Huyen, T. T. (2025). Effect of organic manures and inorganic fertilizers on yield and essential oil composition of Java citronella (<em>Cymbopogon winterianus</em>). Multidisciplinary Science Journal, 8(1), 2026070. https://doi.org/10.31893/multiscience.2026070
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