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All Journal Tropical Plantation Journal VIGOR: JURNAL ILMU PERTANIAN TROPIKA DAN SUBTROPIKA
Bahrul Ulum
Politeknik LPP Yogyakarta
Agriculture, Biological Sciences & Forestry

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Analisis Komparatif Pendapatan Usahatani Kentang, Kubis, Dan Brokoli Di Desa Kenalan Kecamatan Pakis Kabupaten Magelang Pantja Siwi V R Ingesti; Bahrul Ulum
JURNAL VIGOR Vol 11, No 1 (2026): VIGOR: JURNAL ILMU PERTANIAN TROPIKA DAN SUBTROPIKA
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/vigor.v11i1.9870

Abstract

This study aims to analyze differences in income from potato, cabbage, and broccoli farming in Kenalan Village, Pakis District, Magelang Regency. The study was conducted in 2024 using a census survey method with 40 farmer petanits: 20 potato farmers, 10 cabbage farmers, and 10 broccoli farmers. Data analysis was conducted using farm income analysis, business feasibility analysis (R/C Ratio), normality test, homogeneity test, analysis of variance (ANOVA), and Games-Howell follow-up test. The results showed that potato farming provided the highest income, with a range of Rp23,525,357.14–Rp76,608,673.47 per hectare, with an R/C Ratio of 1.41–2.29. Broccoli farming generated income of Rp18,674,315.79–Rp27,823,389.36 per hectare, with an R/C Ratio of 1.62–2.81. Meanwhile, cabbage farming generated income of Rp11,275,291.67–Rp24,059,226.19 per hectare with an R/C Ratio of 1.27–1.75. The results of the normality test showed that the data were normally distributed (p0.05). The ANOVA results showed a significant difference in income between farming groups (F = 10.038; p = 0.000). Further Games-Howell tests showed that potato farming income was significantly different from broccoli farming (p = 0.001) and cabbage farming (p = 0.000), while broccoli and cabbage farming income were not significantly different (p = 0.868). The results showed that potato farming was the commodity that provided the highest income compared to cabbage and broccoli at the research location.
Analisis Technology Readiness Index (Tri) Terhadap Penerapan Mekanisasi Intensif Pada Kegiatan Onfarm Di Lingkup Palmco Zulkifli Zein; Bahrul Ulum; Azhari Rizal; Adi Rimbawanto; Oni Apriyanto
JURNAL VIGOR Vol 11, No 1 (2026): VIGOR: JURNAL ILMU PERTANIAN TROPIKA DAN SUBTROPIKA
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/vigor.v11i1.9887

Abstract

The transformation of the oil palm industry toward more efficient production systems has accelerated the implementation of mechanization in plantation operations. The success of mechanization adoption is determined not only by the availability of technology but also by the readiness of human resources to accept and utilize such technology. This study aims to analyze the level of technology readiness for intensive mechanization implementation in on-farm operations within PT Perkebunan Nusantara IV (PalmCo). A quantitative descriptive approach was employed using the Technology Readiness Index (TRI), which consists of four dimensions: optimism, innovativeness, discomfort, and insecurity. Data were collected through questionnaires distributed to respondents from six PalmCo estates representing Regions I, II, and III. The study covered mechanization in land preparation and planting, fertilization, maintenance and weed control, harvesting, and transportation activities. Data were analyzed by calculating the technology readiness index and classifying the results into low, medium, and high technology readiness categories. The results showed that mechanization in land preparation and fertilization achieved TRI values of 3.437 and 2.966, respectively, indicating Medium Technology Readiness. In contrast, weed control and harvesting-transportation activities recorded TRI values of 2.866 and 2.804, respectively, indicating Low Technology Readiness. Optimism was identified as the most influential dimension contributing to technology readiness across all mechanization activities. The lower readiness levels were mainly associated with plantation topography, limited supporting infrastructure, and the absence of fully integrated mechanization implementation. These findings provide valuable insights for PalmCo in developing more effective mechanization strategies tailored to the operational characteristics of oil palm plantations.
Analysis of The Effect of Pollinating Insects (Elaeidobius Kamerunicus) on Oil Palm Average Bunch Weight in Sei Silau Plantation of PT Perkebunan Nusantara IV Regional I Farid Nurhidayah; Bahrul Ulum; Alfiq Muhammad Pane; Audialiy Dewfan; Nur Jannah Nasution
Tropical Plantation Journal Vol 5, No 2 (2026): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v5i2.101

Abstract

Oil palm (Elaeis guineensis Jacq.) is an important plantation commodity whose productivity is closely related to the quality and yield of fresh fruit bunches (FFB). One of the main indicators of production performance is average bunch weight, which is strongly influenced by the success of pollination. This study aimed to evaluate the differences in average bunch weight before and after the introduction of the pollinating insect Elaeidobius kamerunicus. A quantitative comparative method with paired observations on the same plantation blocks was applied in this study. The data were obtained from production records in Afdeling II of Sei Silau Plantation, covering the periods of July–August 2025 (before insect introduction) and January–February 2026 (after introduction). Data analysis was conducted using the Shapiro–Wilk normality test, followed by the Wilcoxon Signed Rank Test because the data were not normally distributed. The results showed that the average bunch weight after the release of pollinating insects was consistently higher than before the introduction. Statistical analysis also revealed significant differences, with p-values of 0.001 and 0.008 (p 0.05). These findings indicate that the presence of Elaeidobius kamerunicus improves pollination efficiency, thereby enhancing fruit formation and bunch weight. This study highlights the importance of effective pollinator management as a strategy to improve oil palm productivity in plantation systems.
Co-Authors Adi Rimbawanto Alfiq Muhammad Pane Audialiy Dewfan Azhari Rizal Farid Nurhidayah Nur Jannah Nasution Oni Apriyanto Pantja Siwi VR Ingesti Zulkifli Zein