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Sulthon Parinduri
Institut Teknologi Sawit Indonesia
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MIKROORGANISME TANAH DI KEBUN KELAPA SAWIT (Elaeis guineensis Jacq.) INSTITUT TEKNOLOGI SAWIT INDONESIA Dalimunthe, Fachrurrozi; Dibisono, Muhammad Yusuf; Ginting, Makhrani Sari; Nurliana, Nurliana; Hasibuan, Henry Budi; Parinduri, Sulthon
Jurnal Al Ulum LPPM Universitas Al Washliyah Medan Vol. 14 No. 1 (2026): Jurnal Al Ulum: LPPM Universitas Al Washliyah Medan
Publisher : UNIVERSITAS AL WASHLIYAH (UNIVA) MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/alulum.v14i1.1218

Abstract

The main role of bacteria and fungi in soil is to decompose dead organic matter, which then forms soil. However, not all fungi are beneficial. Under certain conditions, bacteria and fungi can also be harmful by causing disease. The aim of this study is to explore soil bacteria and fungi and determine the diversity of bacteria and fungi found in oil palm plantations on the ITSI Medan campus. Soil samples were taken using a proportional random sampling method on an area of ????6.7 Ha. There are 2 soil sample points in every 7 trees taken inside and outside the disc. Microorganisms were identified in the Soil Biology Laboratory, Agrotechnology Study Program, Faculty of Agriculture, University of North Sumatra. There are several types of microorganisms obtained, namely from the genus Bacillus, Aeromonas, Micrococcus, Mycobacterium, and Enterobacter with a total of 7.183 x 106.
Identifikasi Ganoderma Kelapa Sawit Sebelum dan Sesudah Pembumbunan di Kebun TIU PTPN IV Regional II Sultan Rizki Subhandri Chaniago; Sulthon Parinduri
JURNAL AGRICA Vol. 19 No. 1 (2026): JURNAL AGRICA
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agrica.v19i1.17687

Abstract

The purpose of this study was to identify basal stem rot disease in oil palm plants caused by Ganoderma boninense and to evaluate the effectiveness of the hilling method at the Tanah Itam Ulu Plantation of PTPN IV Regional II. This is due to the fact that oil palm is a strategic commodity that is highly susceptible to pathogen attacks, especially Ganoderma, which causes decreased productivity and plant mortality. The method used was descriptive analysis based on tree inventory data in blocks (09R and 09S) without hilling and with hilling (09X and 09Y) during the period 2020–2025. This data was obtained through observation, interviews, and field censuses. The results showed that the overall plant population in the blocks decreased annually. This decline was caused by various factors, including disease, plant age, and environmental conditions. However, the rate of decline in the blocks treated with hilling was lower than in the untreated blocks. Hilling has been shown to improve plant stability by forming new roots and increasing the efficiency of water and nutrient absorption. However, this method has not been able to completely halt the disease's progression. To increase the effectiveness of Ganoderma control on a sustainable basis, hilling is recommended as part of an integrated control approach combined with biological agents, orchard sanitation, and early detection.
Efektivitas Pengendalian Gulma Epifit Beringin (Ficus Benjamina) Menggunakan Herbisida Campuran Glifosat dan Metil Metsulfuron dengan Cara Penginfusan Akar Sihotang, Dodi Pransiska; Parinduri, Sulthon
Ranah Research : Journal of Multidisciplinary Research and Development Vol. 8 No. 3 (2026): Ranah Research : Journal Of Multidisciplinary Research and Development
Publisher : Dinasti Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/rrj.v8i3.2079

Abstract

The epiphytic banyan weed (Ficus benjamina) is a major problem in oil palm plantations as it interferes with harvesting and reduces productivity. One effective control method is the root infusion technique using systemic herbicides. This study aimed to determine the most effective herbicide concentration and evaluate the effectiveness of the root infusion method. The research was conducted in a smallholder plantation in Rimbun Village, Sipispis District, Serdang Bedagai Regency from August to September 2025. A non-factorial Randomized Block Design (RBD) with four treatments and four replications was used, consisting of P0 (control), P1 (glyphosate 8 ml/L + metsulfuron methyl 4 g/L), P2 (glyphosate 10 ml/L + metsulfuron methyl 6 g/L), and P3 (glyphosate 12 ml/L + metsulfuron methyl 8 g/L). The observed parameter was weed mortality percentage up to 30 days after application. Data were analyzed using ANOVA followed by DMRT at 5%. The results showed that herbicide treatments significantly affected weed mortality. Treatment P3 achieved the fastest mortality (100%) at 17 days, followed by P2 at 27 days and P1 at 29 days, while the control showed no mortality. Increasing herbicide concentration amlelerated weed death. The root infusion method proved effective in enhancing herbicide absorption. Therefore, P2 is recommended as the optimal and efficient dose.
Co-Authors Abdul Kahar Aderian Suhanda Ahmad Saleh Ahmad Saleh Aida Farida Andi Widodo Dalimunthe, Fachrurrozi Delyana R. Pulungan Guntoro Guntoro Handoko, Habib Hari Muda Hasibuan, Henry Budi Henry Budi Hasibuan Hikmah Sejati Hikmah Sejati Ingrid Ovie Yosephine Jayawarsa, A.A. Ketut Lubis, Fadli Akbar M. Dai Roby Nasution Maisarah Maisarah Makhrani Sari Ginting Manurung, Saroha Marshal Arifin Sinaga Maulana, Imron Muhammad Irfan Mulyana Muhammad Syahdan Muhammad Yusuf Dibisono Nurdin Sucipto, Bambang Nurliana Ovie Yosephine, Ingrid Parinduri, Muhammad Abrar Rey Naldi , Lesmana Ridho Hidayatullah Margolang Ridho Hidayatullah Margolang Riky Aspandy Sari Ginting, Makharani Sibagariang, Roga Oloan Sihotang, Dodi Pransiska Sitepu, Maichal Timoty Sri Wahyuna Saragih Sultan Rizki Subhandri Chaniago Tri Hardiansyah Tua, Siswo Nelson Purba Tuty Ningsih Wandi Marwadi Afandi Wandi Marwadi Afandi WARDATUL HUSNA IRHAM Zulham Effendi