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Effect of inorganic fertilizer application on soil microbial diversity in an oil palm plantation


Salamat, Siti Suliza and Hassan, Mohd Ali and Shirai, Yoshihito and Mohd. Hanif, Ahmad Husni and Norizan, Mohd Shahkhirat and Mohd Zainudin, Mohd Huzairi and Mustapha, Nurul Asyifah and Mat Isa, Mohd Noor and Abu Bakar, Mohd Faizal (2021) Effect of inorganic fertilizer application on soil microbial diversity in an oil palm plantation. BioResources, 16 (2). 2279 - 2302. ISSN 1930-2126


Excessive fertilizer applications in oil palm plantations are conventionally done to increase the oil yield, but they result in high production cost and environmental pollution. There have been only separate reports on the effects of fertilizer application on soil physical, chemical characteristics, and microbial biodiversity. Therefore, this study was conducted to determine the correlation between soil characteristics and soil microbial biodiversity in oil palm plantation after long-term frequent chemical fertilizer application compared with secondary soil, using molecular methods of polymerase chain reaction denaturing gradient gel electrophoresis (PCR-DGGE) and MiSeq. Secondary forest soil was chosen as the control. The results showed that after 25 years of fertilizer application, the total nitrogen and organic carbon contents decreased from low to very low scale, indicating soil infertility condition. Reduction of Firmicutes was related to suppression of soil borne diseases, and Bacteroidetes which is an indicator of soil health were both almost eliminated after 25 years of fertilizer application. In conclusion, long-term inorganic fertilizer application reduced the soil nitrogen, and organic carbon, altered beneficial microbes in the soil.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Faculty of Biotechnology and Biomolecular Sciences
Institute of Tropical Agriculture and Food Security
Publisher: North Carolina State University * College of Natural Resources
Keywords: Firmicutes; Bacteroidetes; Inorganic fertilizer application; Oil palm plantation; Soil microbial biodiversity
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 29 Nov 2022 09:03
Last Modified: 29 Nov 2022 09:03
URI: http://psasir.upm.edu.my/id/eprint/96911
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