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INDONESIA
Agricultural Power Journal
Published by CV. HEI Publishing Indonesia
ISSN : -     EISSN : 30628563     DOI : http://dx.doi.org/10.70076/apj
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Agricultural Power Journal (APJ), encourages submission of manuscripts dealing with all aspects to optimizing the quality and quantity of both plant, including agricultural economics and management, agricultural engineering and mechanization, agronomy and crop science, biotechnology, ecology and ecophysiology, food science and technology, genetic diversity and breeding, molecular biology, land resources, land use and remote sensing, microbiology, virology and bacteriology, organic agriculture, physiology and nutrition, phytoremediation, plant nutrition, plant pathology and pest management, post-harvest technology, soil sciences, soilless culture, tissue culture technology, and water management.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol 2 No 2 (2025): May, 2025" : 5 Documents clear
Response of Sweet Corn (Zea mays saccharata Sturt) to Different Decomposers and Rice Straw Compost Dosages Jamilah jamilah
Agriculture Journal Vol 2 No 2 (2025): May, 2025
Publisher : CV. HEI PUBLISHING INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70076/apj.v2i2.87

Abstract

This study was conducted in Kalumbuk Subdistrict, Kuranji District, Padang City, to evaluate the effects of decomposer type and rice straw compost dosage on the growth and yield of sweet corn. The objective of the study was to determine the effect of decomposer origin and rice straw compost dosage on the growth and yield of sweet corn. The experiment used a factorial randomized complete block design (RCBD) with two factors. The first factor was the type of decomposer consisting of three sources: natural (no added decomposer), EM4, and Crocober Plus LOF (CP LOF). The second factor was the rice straw compost dosage consisting of three levels: 10, 15, and 20 tons per hectare. The results showed no significant interaction between decomposer type and compost dosage on plant height and Leaf Area Index (LAI). However, both decomposer type and compost dosage had significant main effects. Crocober Plus (CP LOF) and EM4 liquid significantly improved plant growth and yield compared to natural decomposer, with CP LOF producing the best results. The optimal compost dosage was 15 t ha⁻¹, which resulted in a maximum yield of 27.46 t ha⁻¹ of fresh ear weight.
Effect of Edible Coating from Avocado Seed Starch with Cinnamon Extract on the Quality of Strawberry Fruit Novalia Khairunnisa; Sahib Nukatab
Agriculture Journal Vol 2 No 2 (2025): May, 2025
Publisher : CV. HEI PUBLISHING INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70076/apj.v2i2.116

Abstract

Strawberries are a high-value fruit with significant nutritional benefits but are highly susceptible to postharvest deterioration caused by mechanical, physical, and microbiological factors. To maintain fruit quality, appropriate postharvest treatments such as edible coatings are required. This study aimed to evaluate the effect of avocado seed starch–based edible coatings enriched with cinnamon extract and to determine the optimal concentration for maintaining strawberry quality. A one-factor Completely Randomized Design (CRD) was applied using cinnamon extract concentrations of 0%, 0.5%, and 1% (v/v). The results showed that the edible coating containing 0.5% cinnamon extract was the most effective treatment, maintaining strawberry quality for five days of storage. This treatment resulted in a weight loss of 9.58%, moisture content of 88.67%, firmness of 6.05 N/cm², total soluble solids of 6.85 °Brix, lightness (L*) value of 7.42, and a total microbial count of 2.4 × 10¹ CFU/g.
Design and Development of Potato Harvesting Equipment (solanum tuberosum l.) for Harvesting Efficiency Wahyu Anwar; Aprilian Firmansyah
Agriculture Journal Vol 2 No 2 (2025): May, 2025
Publisher : CV. HEI PUBLISHING INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70076/apj.v2i2.117

Abstract

Potato (Solanum tuberosum L.) is a high-value horticultural crop in Indonesia; however, harvesting is still predominantly conducted manually, resulting in low efficiency, high labor demand, and a high risk of tuber damage. This study aimed to design, develop, and evaluate a semi-mechanical potato harvesting machine suitable for field conditions in Indonesia. The research stages included field observation, computer-aided design (CAD), prototype fabrication, and field performance testing on three planting beds. The parameters evaluated were effective working capacity, harvesting efficiency, and tuber damage percentage. The developed harvester achieved an average effective working capacity of 240.60 Kg/Hour or 0.0118 ha/hour, with a tool efficiency of 65.74%. The average tuber damage was 5.96%, indicating good harvesting quality. These results demonstrate that the developed harvester significantly improves harvesting productivity and reduces yield losses compared to manual methods. Further improvements are recommended, particularly regarding blade-angle adjustment and collection system optimization.
Thermoeconomic Analysis of Batch Type Grain Dryer Machines in District X Region Okto Barita; Dahlan Buhungo
Agriculture Journal Vol 2 No 2 (2025): May, 2025
Publisher : CV. HEI PUBLISHING INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70076/apj.v2i2.120

Abstract

Drying grain is a crucial stage in the post-harvest process to maintain product quality and storability. The objective of this study is to evaluate the technical and economic performance of a batch-type grain dryer that uses heat from the indirect combustion of rice husks via a hot-air circulation system. The research was conducted in District X, X Regency, using a machine with a capacity of approximately 6 tons per cycle and an average drying duration of 8 hours. The observed parameters included drying-chamber temperature, moisture content, relative humidity, thermal efficiency, specific power requirement, drying yield, drying rate, fuel consumption, and overall energy efficiency. The results indicated that the drying-chamber temperature ranged from 28 to 32°C, while the grain moisture content decreased from 23–25% to 15.4%. The highest thermal efficiency reached 85.57%, with an average specific power requirement of 0.00188 kWh/kg and a drying yield of 97.68%. Using 120 kg of rice husk fuel per cycle produced a drying efficiency of 15%. The drying cost was IDR 53.55/kg, and the break-even point was reached after 1,740 hours of operation per year. These findings demonstrate that batch-type grain dryers are technically reliable and economically feasible for grain drying at the farm level.
Evaluating the Economic Resilience of Horticulture Against Food Inflation: A Price Transmission Analysis from Producers to Consumers of Strategic Commodities Using SP2KP Panel Data Wartaka; Aisyah
Agriculture Journal Vol 2 No 2 (2025): May, 2025
Publisher : CV. HEI PUBLISHING INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70076/apj.v2i2.158

Abstract

The economic resilience of Indonesia's horticultural sector is frequently undermined by volatile food inflation and distributional inefficiencies. This study evaluates market resilience and price transmission mechanisms for strategic commodities—specifically chili and shallots—from producer to consumer levels. Utilizing weekly panel data from SP2KP and BAPANAS across 34 provinces (2022–2024), the research incorporates BMKG rainfall anomaly metrics within a Vector Error Correction Model (VECM) and Wald asymmetry tests. The findings confirm a stable long-term cointegration with a moderate weekly price adjustment rate of 24.5%. A pivotal discovery highlights significant asymmetric price transmission, where retail prices respond significantly faster to producer-level increases than to decreases, validating the "rockets and feathers" effect. Furthermore, climatic anomalies significantly intensify retail price instability. The study concludes that the Indonesian horticultural market remains structurally asymmetric and susceptible to exogenous shocks. These findings indicate that farm-gate price protection and supply chain efficiency are important factors shaping market resilience.

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