Using Seaweed Base Organic Fertilizer as Yield Booster at Volcanic Soil: Effect on Soil Quality and Yield of Patchouli (Pogostemon Cablin)


  • Sures Narayasamy Politeknik Sandakan Sabah
  • Mohamadu Boyie Jalloh Universiti Malaysia Sabah, Sandakan Sabah,



Patchouli (Pogostemon cablin Benth.) is a bushy herb native to the tropical region of Asia, and now cultivated for its essential oil usually used in perfume manufacturing. It also widely used throughout the world as treating skin conditions, relieving depression, controlling appetite, and antifungal agents. It also cultivated commercially in Tawau, Sabah for exporting purposes with average oil production up to 26-29 mt per acre in 2016. As they enter the second and third harvesting cycle, the yield started to decline and reach 2.6 mt of oil per acre. This drop-in yield is thought to be either due to soil variabilities, low nutrient levels in volcanic soil, and also diseases. Soil nutrient analysis and leaf coloration patterns are studied before conducting the study. Seaweed extract, banana peel, the mixture of Seaweed extract and banana peel, and pre-formulated 12-12-12 (N-P-K) organic fertilizer (PFF) fertilizer treatments were engaged in the Patchouli plot field experiment. Besides, the agronomical practice for the cultivation of Patchouli is well studied or documented. The pre-study showed that the study plot has a very low conductivity level, a very low level of organic Carbon and low Cation Exchange Capacity (CEC) level. Meanwhile, there were no diseases or nematode occurrences in the area. Plant height, soil pH, and soil conductivity were studied with all the four treatments that have shown a positive significant impact compared with standard estate practice. The treatments using seaweed and seaweed mixture had the highest significant level for soil conductivity with the conductivity improve from 43 to 480 micro Siemens (μS/cm) but it reduces the soil pH. Whereas, plant height data analysis showed that the seaweed mixture was significantly different compared with other treatments at a 0.05 level. Hence, we recommend the Patchouli plantation to use organic fertilizers especially seaweed-based since it is cheap and easily available in Sabah. 

Author Biographies

Sures Narayasamy, Politeknik Sandakan Sabah

Department of Agrotechnology and Bioindustry

Mohamadu Boyie Jalloh, Universiti Malaysia Sabah, Sandakan Sabah,

Department of Crop Production, Faculty of Sustainable Agriculture


Andrew J.Coel, David A. Roberts, Alan L. Garside, Rocky de Nys, Nicholas A. Paul. (2016). Seaweed compost for agriculture crop production. Journal of Applied Phycology, 629-642.

Chandini, Kumar, R., Kumar, R., & Prakash, O. (2019, April 14). Research Trends in Environmental Sciences. Retrieved from Researchgate:

Gardening Channel. (2020, 2 14). Gardening Channel. Retrieved from Gardening Channel Wedsite:

Han, S. H., An, J. Y., Hwang, J., Kim, S. B., & Park, B. B. (2016). The Effect of Organic Manure and Chemical Fertilizer on The Growth and Nutrient Concentrations of Yellow Poplar (Liriodendron tulipifera Lin) in a nursery System. Forest Science and Technology, 137-143.

Hussein, H., Shaarawy, H., Hussien, N., & Hawash, S. (2019). Preparation of Nano-fertilizer Blend from Banana Peels. Bulletin of the National Research Centre, 1-9.

Jariwala, H. J., & Syed, H. S. (2016, November). Study on Use of Fruit Peels Powder as a Fertilizer. Retrieved from Researchgate:

Ji, R., Dong, G., Shi, W., & Min, J. (2017). Effect of Liquid Organic Fertilizers on Plant Growth and Rhizosphere Soil Characteristics of Chrysanthemum. Sustainability, 1-16.

Kim, C., & Stoecker, A. (2006). Economic effects of environmental taxation on chemical fertilizers. 2.

McHugh, D. J. (2003). A Guide to The Seaweed Industry. Rome: Food and Agriculture Organization of The United Nations.

Mohanty, D., Adhikary, S., & Chattopadhyay, N. (2013). Seaweed Liquid Fertilizer (SLF) and Its Role in Agriculture Productivity. An International Quarterly Journal of Environmental Sciences, 23-26.

Nanzyo, M. (2002). unique properties of volcanic soil. grant-in-aid for scientific research, 99-100.

Neall, V. (2006). Volcanic soils. Land Use, Land Cover, and Soil Sciences – Vol. VII – Volcanic Soils, 1-4.

Nedumaran, T. (2017). Seaweed: A Fertilizer for Sustainable Agriculture. Sustainable Agriculture towards Food Security, 159-174.

Savci, S. (2012). An Agricultural Pollutant: Chemical Fertilizer. International Journal of Environmental Science and Development, 1-4.

Sharma, Nayana., & Singhvi, Ritu. (2017). Effects of chemical fertilizers and pesticides on human health and environment: a review. International journal of agriculture, environment and biotechnology, 676.

Shoji, S., & Takahashi, T. (2002). Environmental and agricultural significance of volcanic ash soil. ResearchGate,113- 126.