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Effectiveness of Combined Shallot Skin Compost and NPK Fertilizer on Cayenne Pepper (Capsicum frutescens) Plants in Ultisol Soil Simbolon, Teddy Aryanto; Mutryarny, Enny; Purnama, Indra
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 6 No 1 (2025): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.6.1.1-12

The cultivation of cayenne pepper (Capsicum frutescens L.) is important due to its widespread use in the food and pharmaceutical industries, as well as in everyday cooking. This study aimed to evaluate the effectiveness of combining shallot skin compost and NPK fertilizer on the growth and yield of cayenne pepper plants grown in Ultisol soil. The experiment was conducted using a Completely Randomized Design (CRD) in a factorial arrangement, with two factors: shallot skin compost (0, 200, 400 g per polybag) and NPK fertilizer (0, 13, 25 g per polybag), each replicated three times. The observed parameters included plant height, stem diameter, number of branches, fruit count, and fruit weight. Data were analyzed using ANOVA followed by Duncan's Multiple Range Test (DMRT) at a 5% significance level. Results indicated that the application of 200 g of shallot skin compost and 25 g of NPK fertilizer per polybag significantly improved plant height, stem diameter, and overall fruit production. Furthermore, a significant interaction between shallot skin compost and NPK fertilizer was observed, particularly in terms of fruit yield and weight. This study suggests that combining organic and inorganic fertilizers can enhance the productivity of cayenne pepper plants in Ultisol soil, offering a sustainable approach to increasing crop yield. Further research is recommended to explore the long-term effects of these treatments on soil health and plant growth.

Optimizing Coconut Shell Liquid Smoke as A Natural Preservative in Advancing Meatball Production: Optimalisasi Asap Cair Tempurung Kelapa sebagai Pengawet Alami dalam Pengembangan Produksi Bakso Mutamima, Anisa; Sunarno, Sunarno; Purnama, Indra; Alfarisi, Cory Dian; Fadli, Ahmad; Yenti, Silvia Reni; Barus, Surya Danta Alberto
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 8 No. 2 (2024): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v8i2.18223

The Al-Anshar Foundation is an institution currently undertaking various projects and initiatives in the fields of education, social welfare, health, economics, culture, and public health. One of the business units managed by the foundation is the Ikhwan Meatball business, which is currently facing challenges such as limited production and market reach due to the short shelf life of the meatballs produced at room temperature. In this community engagement activity, a team consist of lecturers in the fields of chemical engineering and agriculture, was making efforts to assist the partner in addressing these challenges by equipping them with knowledge and skills to use liquid smoke from coconut shell as a natural preservative in meatball production. The activities included coordination with relevant parties, assistance in liquid smoke production, training on liquid smoke usage, product’s packaging improvement, and monitoring and evaluation. This initiative has yielded positive impacts, including an increase in the partner's skills in producing liquid smoke, a better understanding of the partner regarding the utilization of liquid smoke in meatball production, and an extension of the product's shelf life.

Alelopati dan Masa Depan Bioherbisida Berbasis Tumbuhan: Pengaruh Genetik dan Lingkungan – Sebuah Tinjauan Hariy Laksamana; Atika Suri; Indra Purnama
Vegetalika Vol 14, No 3 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/veg.101403

Weeds remain a persistent challenge in agriculture, significantly reducing crop productivity by competing for essential resources such as light, water, and nutrients. Although synthetic herbicides are widely used for weed control, their long-term application raises serious environmental and health concerns. As a sustainable alternative, plant-based bioherbicides that harness allelopathy—the natural chemical interactions among plants—are gaining attention. This review explores recent findings on the allelopathic potential of invasive and native plant species, focusing on key allelochemicals such as flavonoids, phenolics, and terpenoids that exhibit phytotoxic effects on weed species. Genetic factors, including specific quantitative trait loci (QTLs) and metabolic pathways involved in allelochemical production, are also discussed as critical determinants of allelopathic expression. Furthermore, environmental conditions such as temperature, soil composition, and light regimes can influence the efficacy and persistence of allelopathic compounds in the field. Understanding the synergistic interaction between genetics and environmental variables is essential for the development and optimization of effective, eco-friendly bioherbicides. This review highlights the current challenges and prospects in integrating allelopathy into weed management strategies for sustainable agriculture.

RESPON PERTUMBUHAN BIBIT DURIAN (Durio zibethinus L) AKIBAT PEMBERIAN KOMPOS DAUN KERING DAN PUPUK ORGANIK CAIR TOP G2 roni, Roni Griono Laia; Indra Purnama; Endriani
DINAMIKA PERTANIAN Vol. 41 No. 2 (2025): Jurnal Dinamika Pertanian Edisi Agustus 2025
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/dp.2025.vol41(2).22321

Durian (Durio zibethinus Murr.) is an exotic tropical fruit with a unique taste and aroma. Durian fruit, also called the king of fruits, is very popular among various communities for its distinctive taste. Vegetative propagation techniques used by farmers remain less efficient, both in terms of time and implementation, so the ability to provide superior durian seeds remains limited, and the price is relatively high. One technique involves using compost and liquid organic fertilizer TOP G2, which also helps rehabilitate, improve, and maintain the fertility of cultivated land, thereby significantly increasing plant growth and quality. This research was conducted experimentally using a Completely Randomized Design (CRD) factorial with two factors: K (dry leaf compost) with 3 levels and T (POC TOP G2) with 3 levels, each with 3 replications. The number of experimental units is 27 plots. Each plot consists of 4 plants, with 1 plant as a sample, for a total of 27 × 4 = 108 plants. The analysis of variance showed that providing dry leaf compost and POC TOP G2 had a significant effect on the observation parameters of stem diameter, leaf length, and leaf width but had no significant effect on plant height or leaf number. The results of the best further treatment tests were in the K2T2 treatment (provision of dry leaf compost 2 kg/plant and provision of POC TOP G2 10 cc/l plant) and K1T2 (provision of dry leaf compost 1 kg/plant and POC TOP G2 10 cc/l plant). The lowest treatment was K0T0 (without the provision of dry leaf compost and POC TOP G2).

Alelopati dan Masa Depan Bioherbisida Berbasis Tumbuhan: Pengaruh Genetik dan Lingkungan – Sebuah Tinjauan Hariy Laksamana; Atika Suri; Indra Purnama
Vegetalika Vol 14, No 3 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/veg.101403

Weeds remain a persistent challenge in agriculture, significantly reducing crop productivity by competing for essential resources such as light, water, and nutrients. Although synthetic herbicides are widely used for weed control, their long-term application raises serious environmental and health concerns. As a sustainable alternative, plant-based bioherbicides that harness allelopathy—the natural chemical interactions among plants—are gaining attention. This review explores recent findings on the allelopathic potential of invasive and native plant species, focusing on key allelochemicals such as flavonoids, phenolics, and terpenoids that exhibit phytotoxic effects on weed species. Genetic factors, including specific quantitative trait loci (QTLs) and metabolic pathways involved in allelochemical production, are also discussed as critical determinants of allelopathic expression. Furthermore, environmental conditions such as temperature, soil composition, and light regimes can influence the efficacy and persistence of allelopathic compounds in the field. Understanding the synergistic interaction between genetics and environmental variables is essential for the development and optimization of effective, eco-friendly bioherbicides. This review highlights the current challenges and prospects in integrating allelopathy into weed management strategies for sustainable agriculture.

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