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All Journal Jurnal Pertanian Khairun (JPK) CITACONOMIA : Economic and Business Studies
Subrata, Pramudya Ibnu
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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Kerangka Rizobakteri Pemacu Pertumbuhan Tanaman, Ketahanan Sistemik Terinduksi, Dan Sumber–Serapan Dalam Pembentukan Mutu Buah Melon: Sebuah Uji Eksperimental Haryanto, Budhi; Wulan, Ida Aryati Diyah Purnomo; Rachmawatie, Srie Juli; Setyadi, M. Gunawan; Setyawan, Didik; Subrata, Pramudya Ibnu
Jurnal Pertanian Khairun Vol 4, No 2: (Desember 2025)
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jpk.v4i2.11323

Abstract

This study addresses the need to improve melon fruit quality while reducing dependence on chemical inputs by evaluating the effectiveness of a consortium based plant growth promoting rhizobacteria (PGPR) biofertilizer biopesticide. The objective was to assess its impact on the quality of Madesta melon grown in a lowland clay soil agroecosystem, focusing on fruit weight, netting density, and rind color. A two group experimental design (biological treatment versus control) was implemented using a polybag system under uniform basal NPK fertilization. One fruit per plant was evaluated at 75 days after anthesis. Data were analyzed using the Shapiro Wilk test for normality, Welch’s t test for mean comparisons with 95% confidence intervals, and complementary nonparametric tests for ordinal variables. The results showed that plants receiving the biofertilizer biopesticide consistently produced heavier fruits with denser netting and brighter, more uniform rind color than the control group, with statistically significant differences and large effect sizes. These findings indicate that PGPR based biofertilizer biopesticide application is an effective complementary strategy to enhance melon fruit quality and uniformity, with potential economic benefits and reduced chemical residue risks. Further multi location and multi season evaluations are recommended to support wider adoption.
Strategic Protocol in Crisis: A Conceptual Framework for Government Public Relations in State-Owned Energy Enterprises Susetyo, Asti Sih; Pradana, Galang Yoga; Wahyuni, Kholifah; Subrata, Pramudya Ibnu
CITACONOMIA : Economic and Business Studies Vol. 5 No. 02 (2026): April - Juni
Publisher : CITACONOMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63922/citaconomia.v5i02.3075

Abstract

This conceptual article explores the operational paradox of PT Pertamina (Persero) as a National Oil Company (NOC) caught between its commercial mandates and the rigid bureaucratic protocols of the state. While protocol is traditionally viewed as a static administrative function, this study identifies it as a significant structural barrier—termed "bureaucratic inertia"—that impedes crisis communication agility, as evidenced by the 2025 Pertamax fuel crisis. Using a qualitative descriptive method and an integrative literature review, the research deconstructs the friction between Law No. 9 of 2010 on Protocol and the urgent demand for transparency in the digital era. The findings lead to the proposal of the "Agile Protocol" framework, which reconciles institutional dignity with communicative speed. This model is built upon two strategic pillars: Dynamic Formality, which simplifies hierarchical approval chains, and Digital Command Integration, which synchronizes protocol gestures with real-time social media monitoring. The study concludes that by shifting the paradigm from "honors for individuals" to "honors for the public interest," State-Owned Enterprises can preserve state authority while maintaining corporate reputation. Theoretically, this research extends Situational Crisis Communication Theory (SCCT) by integrating institutional honor as a critical variable in public sector reputation management.
Co-Authors Budhi Haryanto M. Gunawan Setyadi Pradana, Galang Yoga Rachmawatie, Srie Juli Setyawan, Didik Susetyo, Asti Sih Wahyuni, Kholifah Wulan, Ida Aryati Diyah Purnomo