Differences Of Earthworm Biomass And Analysis Of N, P, K, C-Organic Levels In Palm Oil Plantation Land

DOI

10.2991/978-94-6463-998-8_18How to use a DOI?

Keywords

agroecological; immature; Lumbricus sp.; nutrients; soil organisms

Abstract

Earthworm (Lumbricus sp.) is a biomass of soil organisms that has important agroecological functions because it can affect the dynamics of organic matter and soil structure. This study aims to de- termine differences in earthworm biomass and analyze the levels of nu- trients nitrogen (N), phosphorus (P), potassium (K), C-organic in the immature (IM) and mature (M) oil palm plantations belonging to the people of Salang Tungir Village, Namorambe District. The method used is descriptive analytic method by laying the plots randomly and taking samples from the plots in a saturated manner. The parameters observed were nutrients N, P, K, C-organic soil, soil texture, pH, humidity, water content, and earthworm biomass. Observational data were analyzed using the T statistical test with a significance level of 95%. The results showed that the biomass of the earthworm population in the IM oil palm plantation area was significantly different from the biomass of the earth- worm population in the M oil palm plantation. The higher earthworm population biomass of 25.13 g/plot was found in IM. Nutrient content of type P was found to be higher than that of N, K, and C- organic in the IM and M oil palm plantations. Immature oil palm plantation soil dominates with a sandy texture with a neutral pH containing earthworm population biomass and higher levels of phosphorus than mature.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Rama Riana Sitinjak
AU  - Andry Admaja Tarigan
AU  - Lentina Sitinjak
AU  - Axel Leonardo Hailitik
AU  - Saparadeo Simanjuntak
AU  - Miko Fernando Siregar
AU  - Mathen Sweden Sihombing
PY  - 2026
DA  - 2026/03/05
TI  - Differences Of Earthworm Biomass And Analysis Of N, P, K, C-Organic Levels In Palm Oil Plantation Land
BT  - Proceedings of the 1st International Conference of Technology, Innovation, Design & Enterprise (ICTIDE 2025)
PB  - Atlantis Press
SP  - 139
EP  - 149
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-998-8_18
DO  - 10.2991/978-94-6463-998-8_18
ID  - Sitinjak2026
ER  -