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All Journal MEDIA KONSERVASI Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management)
Adiyaksa, Ivan Khofian
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Environmental Science

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Exploring Soil Biota and Chemical Dynamics in Palm Oil Cultivation: Insights from Cikabayan, Bogor Adiyaksa, Ivan Khofian; Widyastuti, Rahayu; Putri Wulandari, Dwi; A M Zuhud, Ervizal
Media Konservasi Vol. 29 No. 4 (2024): Media Konservasi Vol 29 No 4 September 2024
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/medkon.29.4.609

Abstract

Soil biological properties sometimes escape attention from environmental studies, especially regarding land use change. Several studies on diversity have been conducted in palm oil. However, most of the studies only focus on certain genera or order and have not yet depicted the micro-ecosystem in the soil. This study aims to analyze the interaction between soil biological properties and soil chemical properties through a correlation study using Randomized Block Design (RBD) to simplify the system in the micro-ecosystem. The result showed that most soil microbe parameters have complex and different interactions with soil chemical properties. Soil biological properties, such as the total microbes (TM) and Azotobacter (Az), significantly correlated toward phosphate and potassium, respectively. Furthermore, mesofauna and macrofauna have a negative and weak correlation with pH and a negative and moderate correlation towards Phosphate (P) content in the soil. This negative and moderate correlation strength happened due to increased soil acidity, leading to a higher chance of H2PO4- interacting with metal ions, resulting in a high risk of toxicity. Soil chemical properties have complex interactions with soil biological properties, and each will affect the others to balance the chemical cycling in the soil. Thus, this study showed the importance of preserving the natural balance of cultivated areas, in this case, palm oil plantations, so that the well-preserved ecosystem will give its benefits.
Effect of Bio-Organic Fertilizer on Soil Organism in Experimental Oil Palm Plantation Cikabayan, Bogor, Indonesia Widyastuti, Rahayu; Adiyaksa, Ivan Khofian; Wulandari, Dwi; Zuhud, Evrizal A M
Jurnal Ilmu Tanah dan Lingkungan Vol 27 No 1 (2025): Journal of Soil Science and Environment
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.27.1.7-15

Abstract

The use of chemical-based fertilizer continuously without addition of organic matter may have hazardous effects on the environment. Numerous studies have shown that chemical-based fertilizers may disrupt the balance of soil properties, including physical, chemical, and biological properties. Bio-organic fertilizers have become one of the alternative answers to oil palm sustainability and a replacement for chemical-based fertilizers to promote and provide a better service to the soil and environment. This study aims to analyze the effect of application of biofertilizers combined with different dosages of organic matter (bio-organic fertilizers), i.e. 0 kg tree-1, 6 kg tree-1, and 12 kg tree-1, respectively. The study was conducted in Cikabayan Experimental Oil Palm Plantation, Bogor, West Java with 12 year-old-plant oil palm, from May to November 2023. The study showed an increase in the population density of the soil organisms after application of bio-organic fertilizers, especially with the dose of 6 kg tree-1. The change in the soil fauna community structure was also observed in this study, where Collembola dominated the ecosystem after fertilization. These findings offer practical strategies to mitigate the negative impacts of traditional fertilizers. Moreover, the study highlights the role of bio-organic fertilizers in enhancing soil biodiversity by increasing the populations of beneficial soil organisms.
Review: Etnotaksonomi dan bioekologi tumbuhan pasak bumi (Eurycoma longifolia Jack.) Zuhud, Ervizal A.M.; Adiyaksa, Ivan Khofian; Hidayati, Syafitri; Al Manar, Primadhika
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 11 No 2 (2021): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.11.2.177-178

Abstract

Eurycoma longifolia (EL) is a species that have economical benefit as medicinal ingredients for human health. This species grows in tropical forest areas with high rainfall. Research on the ecology of EL has been done a lot, but research related to ethnotaxonomic, bioecology that includes morphology, ecology, and the association of EL with other plants hasn’t been done much. This study aim to analyze the bioecology of EL plant. The method is literature study, which is looking for literature on the results of research that has been carried out related to EL. The results showed that EL has long been known by the communities of Indonesia and other countries in Southeast Asia with several local names. This plant is also associated with other plants around where it grows, one of which is kempas (Koompassia malaccensis). Based on the results of literature review, research on natural regeneration of EL hasn’t been done much. Therefore, there is a need for research related to the natural regeneration of EL. In addition, it is necessary to conduct research related to the characteristics of the place to grow for optimal cultivation of EL. Thus, the preservation of EL in the future can be maintained.
Co-Authors A M Zuhud, Ervizal Al Manar, Primadhika Dwi Wulandari Ervizal AMZU Hidayati, Syafitri Putri Wulandari, Dwi RAHAYU WIDYASTUTI Zuhud, Evrizal A M