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All Journal Jurnal Agro Industri Perkebunan Empowerment : Jurnal Pengabdian Masyarakat Jurnal Ilmiah Hijau Cendekia Agroista: Jurnal Agroteknologi
Samsuri Tarmadja, Samsuri
Fakultas Pertanian Instiper
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Social Sciences

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Journal : Agroista: Jurnal Agroteknologi

 1 
Studi Komparasi Keanekaragaman Serangga di Kebun Kelapa Sawit pada Topografi Tinggi dan Rendahan Santoso, Hadi; Santi, Idum Satia; Tarmadja, Samsuri
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 2 (2023): NOVEMBER
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v7i2.736

Abstract

Environmental conditions can affect insect diversity. Different plantation conditions give rise to changes in the composition of insects. The study aims to determine the diversity of insects in high and low topography. The research was conducted at PT. Djuandasawit Lestari, Muara Tawas Estate located in Musi Rawas, South Sumatra, from December 2022 to March 2023.  The study used purposive sampling methods that are descriptive and exploratory. The study used 2 plantation blocks R58 and Q59), each block has a high and low topographic area. Each block made 10 observation plots with a size of 5 x 5 meters spread in five plots for low and high areas by taking into account the diversity of vegetation. Each research plot was installed with 4 traps, namely pan trap, pitfall trap, sticky trap and sweep net for 10 days of observation. The insects were identified their classification, and diversity index calculated by the Shannon-Wienner and Simpson dominance. The results showed that the abundance of insects in low-level topography was more than in high-altitude topography. A total of 708 individuals were found spread across 12 orders and 27 families in low topography, while in high topography only 537 individuals were found spread across 12 orders and 26 families. The index of insect dominance in lowly and high areas is low. The insects found are mostly predatory insects.
Perbandingan Persentase Brondol di Berbagai Macam Areal di Perkebunan Kelapa Sawit Ramadhan, M.Fauzan; Gunawan, Sri; Tarmadja, Samsuri
AGROISTA : Jurnal Agroteknologi Vol. 8 No. 1 (2024): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v8i1.925

Abstract

Palm oil productivity is influenced by many factors. One factor is crop rotation. Harvest rotation greatly influences productivity in oil palm plantations. Obstructed harvest rotation causes the number of fruit bunches to increase in an area compared to the weight of fresh fruit bunches (FFB) harvested. The percentage of brondol in oil palm plantations is very important because it will affect the average bushel weight (BJR) and payments to employees for oil palm plantation companies. The decrease in BJR due to the high percentage of brondol will also have an impact on the morale of workers, especially harvesters on oil palm plantations because the harvest base will be higher to get a harvest premium. This research aims to determine the comparison of the percentage of brondol in various areas, namely hilly, lowland and plain areas and to find out the causes of the high percentage of brondol in the treatment blocks. This research uses an agronomic trait survey method by observing secondary data on productivity and percentage of brondol in the last six years, then analyzed using the t test at a level of 5%.  This research was carried out at PT. Cahaya Nusa Gemilang (CNG) Kenanga Estate garden, Marau District, Ketapang Regency, West Kalimantan. The results of the analysis show that plain areas have the best productivity and percentage of brondol compared to lowland and hilly areas.
Uji Efikasi Herbisida Isopropil Amina Glifosat, Triklopir, Glufosinat dalam Mengendalikan Gulma Psychotria serpens di Perkebunan Kelapa Sawit Tarigan, Rio Ganda Terkelin; Tarmadja, Samsuri; Yuniasih, Betti
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i1.864

Abstract

Oil palm productivity is affected by many factors, one of which is weeds that can cause the oil palm productivity to not be maximized. Psychotria serpens is an example of a weed in oil palm plantations. This weed grows creeping in the circle and path so it disrupts oil palm management. This study was conducted to determine the effectiveness of isopropyl amine glyphosate, triclopyr and glufosinate herbicides in controlling Psychotria serpens weeds in oil palm plantations. This research was conducted at PT. Bahana Karya Semesta, Sungai Mentawak Estate, Air Hitam District, Sarolangun Regency, Jambi from March to April 2023. The study used a factorial experiment consisting of 2 factors and arranged in a completely randomized design with 3 replications. The first factor was the type of active ingredient consisting of isopropyl amine glyphosate, triclopyr, and glufosinate, the second factor is the dose of herbicide formulation which is 0.15ml/m2, 0.30ml/m2, 0.45ml/m2, and 0.6ml/m2. Observations were made for 5 weeks. The results of observations were analyzed using oneway anova which was further tested using DMRT 5%. The results was Glyphosate and Glufosinate at all formulation doses could not control Psychotria serpens. Triclopyr at formulation doses 0.15ml/m2 and 0.30ml/m2 was not able to control Psychotria serpens, and at formulation doses 0.45ml/m2 and 0.6ml/m2 showed death in Psychotria serpens. Based on the results of the study, it can be concluded that the best type of active ingredient in controlling Psychotria serpens weeds was the active ingredient Triclopyr with a formulation dose 0.45ml/m2.
Efektivitas Pengendalian Hama Penggerek Batang Padi Kuning (Scirpophaga incertulas) Menggunakan Perangkap Feromon Seks dengan Posisi dan Ketinggian yang Berbeda Cahyaningrum, Estu; Tarmadja, Samsuri; Satya Santi, Idum
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i1.1600

Abstract

This study evaluates the effectiveness of sex pheromone traps in controlling the Yellow Rice Stem Borer (Scirpophaga incertulas). Conducted from April to July in Kesesi Subdistrict, Central Java. The research employed a Randomized Block Design applied in the experiment with two factors: trap position (in-row and jajar legowo) and height (0.5 m, 1 m, 1.5 m), resulting in six treatment combinations across 18 experimental units. Data analysis was performed using ANOVA at a 5% significance level, followed by DMRT for significant results. The highest average capture of moths occurred at 31 days after planting in the treatment in Jajar Legowo position with a height of 0.5 meters with 17 heads. At 70 days after planting, the highest attack rate was 2.36%. Pheromone traps provide effective results in controlling Scirpophaga incertulas.
Keanekaragaman Arthropoda pada Budidaya Padi Ratun di Kecamatan Sedayu, Kabupaten Bantul, Daerah Istimewa Yogyakarta Prasetyo, Mahmudin Tri; Santi, Idum Satya; Tarmadja, Samsuri; Pustika, Arlyna Budi
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 1 (2025): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i1.2084

Abstract

Ratun is a rice cultivation technique, which is a rice plant that grows from the leftovers cut from rice clumps after harvesting with the aim of saving rice field management in rice cultivation. Arthropods are animals with a body characterized by a spineless and segmented body, body parts consisting of the head, chest, and abdomen which are completely wrapped by chitin and the exoskeleton. This study aims to determine the diversity of arthropods in ratun rice plants. The research was carried out in April - June 2023, and is located in Argodadi Village, Sedayu District, Bantul Regency, Special Region of Yogyakarta. The sample collection in this study was divided into several ways, namely pit fall, networking, yellow traps, and direct observation per clump. The formula used to calculate the arthropod diversity index is Shannon-Wiener and Gini-Simpson. The results of the analysis of the arthropod diversity index showed that the ratun rice had moderate diversity based on the Shannon-Wiener index, while the Gini-Simpson index showed a fairly high level of diversity
Co-Authors Arlyna Budi Pustika Cahyaningrum, Estu Elfatma, Olivia Ferhat, Amallia Hadi Santoso Idum Satia Santi Ismiasih, Ismiasih Prasetio, Ryan Prasetyo, Mahmudin Tri Priambada, Kurniawan Jiwo Ramadhan, M.Fauzan Santi, Idum Santi, Idum Satya Satya Santi, Idum Sri Gunawan Tarigan, Rio Ganda Terkelin Valensi Kautsar, Valensi Wirianata, Herry Yuniasih, Betti