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Use of Biochar to Control Root-Feeding Soil Nematodes on Muna Local Tomatoes Variety Ningsi, Fitri Wahyu; Hakim, Irfan; Dussy, Achmad Nur Azhary; Rahmaniar, Wa Ode; Yudistira, Yudistira; Kilowasid, Laode Muhammad Harjoni
JOURNAL OF TROPICAL SOILS Vol. 27 No. 1: January 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i1.37-47

Abstract

Energy pathways in soil nematode communities consist of energy pathways for roots, bacteria, and fungi. The dominance of the root energy pathway indicated an increase in nematode attacks on the roots that can be regulated through changes in food availability and the environment. This study aimed to (i) determines the effect of the biochar rate on soil nematode energy pathways on local tomato plants and (2) determine the biochar rate that can suppress the dominance of root-feeding nematodes of local varieties of Muna tomato plants. The treatment tested was the biochar rate expressed as a percentage of the biochar weight the soil weight, namely 0%, 5%, 10%, and 15%. Each was repeated three times, randomly placed in the experimental plot following the randomized block design procedure. The results showed that the addition of biochar to 10% of the soil weight decreased the abundance of the total nematodes and family Longidoridae, on the other hand, increased Aphelenchoididae, Spearman rho correlation. The abundance of root eaters decreased; on the other hand, fungivores increased with the biochar rate. Spearman rho indicated that fungivores were negatively correlated with root-feeders and omnivores while positively correlated with predators. It was concluded that applying biochar up to a rate of 10% of the soil weight before planting could suppress the abundance of root-feeding nematodes in the vegetative growth phase of Muna local tomatoes variety.
REINTERPRETASI TRADISI HAROA DI BUTON MELALUI METODE DOUBLE MOVEMENT FAZLUR RAHMAN Rahmaniar, Wa Ode
Ahsan: Jurnal Dakwah dan Komunikasi Vol 4 No 2 (2025)
Publisher : Program Studi Manajemen Dakwah Fakultas Ushuluddin Adab dan Dakwah IAIN Manado

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Abstract

This study reinterprets the Haroa tradition a Buton ritual of gratitude rich in spiritual and social values using Fazlur Rahman's double movement hermeneutic method to address questions regarding its theological legitimacy. Employing a qualitative library research approach, the study analyzes Haroa culture and Rahman's methodology. The analysis through Rahman's First Movement reveals that Haroa emerged from an accommodative Islamization process, integrating Islamic principles into local culture. The core normative values found gratitude, social solidarity, and moral education are consistent with the ethical values of the Qur'an. The Second Movement confirms the enduring relevance of these moral values in the modern context. Haroa functions as a crucial space for collective ethical education and dialog amidst contemporary social challenges like individualism and weakening solidarity. In conclusion, the Haroa tradition is recognized as urf shalih (a good tradition) in line with Sharia principles. It possesses a strong, relevant theological value foundation, acting as an effective medium for the contextual internalization of Qur’anic morals within the Buton community.