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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Journal of Earth Kingdom
Arraudah, Rahayu
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science

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Effect of CaCO3, humic acid, and arbuscular mycorrhizal applications on soybean growth in ultisol of Sijunjung, West Sumatra Arraudah, Rahayu; Purnamawati, Heni; Ghulamahdi, Munif
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 52 No. 1 (2024): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/jai.v52i1.53751

Abstract

Soybean is an important source of cheap protein. However, an adequate supply of soybeans is still challenging in Indonesia. This research aimed to evaluate the morphological, physiological, and yield responses of soybeans from the application of calcium carbonate (CaCO3), humic acid, and arbuscular mycorrhizal fungi (AMF). The research was conducted from December 2022 to April 2023 at the ultisol soil of Sijunjung Regency, West Sumatra. The experiment used a split-split-plot design with three replications. The first factor was AMF and without AMF application. The second factor was humic acid and without humic acid. The third factor was doses of CaCO3 application: 0, ¼, ½, ¾, and 1 time of exchangeable Al. The results showed that CaCO3 application significantly affected root length, shoot dry weight, N-tissue content, soil pH, and exchangeable Al. The application of AMF affected the percentage of AMF colonization. The yield components did not show any significant differences among treatments. However, the yield was 24.85% higher than that written in the official description. Therefore, the application of CaCO3 or humic acid or AMF could be a potential solution to increase soybean yields in ultisol. It needs further evaluation in the field to support future farming practices. Keywords: Al-exch; calcium carbonate; N-tissue content; productivity; soil pH
Potential of local Trichoderma in bioremediation of degraded soil Ghifari, Bima Iqbal; Ridho, Muhammad Rasyid; Putri, Reggina Sonia; Wagino, Syahwa Fitria Maharani; Azizah, Wanda Zahra; Husna, Muhimmatul; Izzatuddinillah, Iffah; Arraudah, Rahayu
Journal of Earth Kingdom Vol. 3 No. 2: January (2026)
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/jek.v3i2.2026.2749

Abstract

Background: Soil degradation in Indonesia is a serious challenge, impacting agricultural productivity and environmental quality. One potential ecological solution is bioremediation using soil microorganisms such as Trichoderma spp. This study aims to identify local Trichoderma isolates from various regions in Indonesia along with their biological and functional characteristics in the bioremediation process. Method: This study uses a narrative literature review to synthesize conceptual and empirical evidence from academic journals, scientific articles, and policy reports. This review focuses on assessing the biological and functional characteristics of local Trichoderma isolates and their effectiveness in addressing unsustainable soil management and environmental degradation. Finding: The results of the literature study indicate that species such as Trichoderma harzianum, Trichoderma viride, Trichoderma asperellum, and Trichoderma koningiopsis can degrade organic and inorganic pollutants, suppressing pathogens, and improving soil fertility. The potential of each isolate is strongly influenced by its environmental origin and type of pollutant, with high effectiveness recorded in ex-mining soil, agricultural land, and pesticide-contaminated areas. Further research and policy support from research institutions or relevant parties are needed so that local Trichoderma can be developed as a bioremediation agent in sustainable agricultural systems in Indonesia. Conclusion: Local Trichoderma species offer a significant and sustainable solution for restoring soil health in Indonesia, provided that challenges related to technology adoption and isolate data can be overcome. Future success depends on cross-sector collaboration to bridge the gap between laboratory research and field application, ensuring that these biological agents are optimized through farmer education and regulatory support. Novelty/Originality of this article: This study presents a comprehensive synthesis of native Indonesian Trichoderma isolates, identifying a direct relationship between their geographic origin and their specific multifunctional effectiveness.
Co-Authors Azizah, Wanda Zahra Faqih Udin Ghifari, Bima Iqbal Husna, Muhimmatul Izzatuddinillah, Iffah Moh. Rasyid Ridho Munif Ghulamahdi Putri, Reggina Sonia Wagino, Syahwa Fitria Maharani