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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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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.
Pemberdayaan Petani Tembakau melalui Diskusi Konservasi Tanah dan Air di Desa Kwadungan Gunung Kautsar, Valensi; Tarmadja, Samsuri; Ismiasih, Ismiasih; Ferhat, Amallia
Empowerment Vol. 7 No. 01 (2024): Empowerment
Publisher : Program Studi Ilmu Hukum Fakultas Hukum Universitas Kuningan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25134/empowerment.v7i01.9251

Abstract

Kwadungan Gunung Village, located in Kledung Sub-district, Temanggung Regency, is a region characterized by its agricultural nature and sloping topography. This results in a significant risk of soil and water damage owing to erosion. The survey and land analysis indicate that erosion has transpired in many locations, ranging from low to medium severity. Furthermore, numerous constraints imposed by farmers suggest that there is a relatively restricted supply of water during the dry season. Hence, it is imperative to implement genuine measures for soil and water conservation. The primary goal of this empowerment is to enhance the comprehension and implementation of soil and water conservation practices among local farmers. The aim is to ensure that the agricultural cultivation business in Kwadungan Gunung Village operates in a sustainable. Initially, discussing sessions on soil and water conservation were carried out in partnership with the local government of Kwadungan Gunung Village. Result showed that farmers have applied conservation measures, albeit to a limited scale. The favorable reception of the extension initiatives indicates the capacity to enhance the use of conservation practices. Subsequently, a demonstration plot will be created to showcase soil and water conservation measures. This plot will function as a tangible example for farmers and will also be included in the farm evaluation process. This demonstrates the unwavering dedication of the agricultural community to the principles of sustainable farming and environmental preservation.
Kajian Pengaruh Perbedaan Kerapatan Tanam dan Tahun Tanam terhadap Produktivitas Kelapa Sawit Prasetio, Ryan; Wirianata, Herry; Tarmadja, Samsuri
Jurnal Agro Industri Perkebunan Vol. 11 No. 3 (2023)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jaip.v11i3.3238

Abstract

The oil palm yield depends on its genetic and the interaction with environmental factors is affected by spatial arrangement of palm trees. The research objectives are to determine the effect of population density and planting year on oil palm productivity and vegetative growth. This research uses a factorial design arranged with a randomized complete design. Secondary data are palm productivity, fresh bunch number and bunch weight that were collected for three years (2019—2022). Primary data are stem height, frond length, and stem gird which were measured on 90 trees for each treatment combination. There are nine combinations with 810 palm trees that were sampled from 27 estate blocks (30 hectares for one block). The results showed that productivity and amount of oil palm FFB at densities ≥ 142, 136-141, and ≤ 135 SPH and planting years 2007, 2009 and 2011 (mature crop 12-15, 10-13, and 8-11 years) did not show significant differences. The heavier bunch weight was produced palm tree planted in 2007 with density ± 135 trees.ha-1.
KEANEKARAGAMAN SERANGGA PERKEBUNAN KELAPA SAWIT DI PROVINSI KALIMANTAN TENGAH Santi, Idum; Tarmadja, Samsuri; Priambada, Kurniawan Jiwo; Elfatma, Olivia
Jurnal Ilmiah Hijau Cendekia Vol 8 No 1 (2023): Jurnal Ilmiah Hijau Cendekia
Publisher : Universitas Islam Kadiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32503/hijau.v8i1.2917

Abstract

Keanekaragaman serangga pada tanaman kelapa sawit (Elaeis guineensis Jacq) di Kabupaten Kota Waringin, Kalimantan Tengah belum banyak di lakukan. Penelitian ini bertujuan untuk mengetahui keanekaragaman serangga diatas permukaan tanah dan mengetahui fungsi masing-masing serangga yang terdapat pada perkebunan kelapa sawit di provinsi Kalimantan Tengah. Metode yang digunakan dalam penelitian ini adalah pengambilan langsung, jaring ayun (sweep net) dan pitfall trap. Hasil penelitian ini menunjukkan perangkap jaring ayun (sweep net) merupakan perangkap yang paling efektif dalam menangkap serangga dibandingkan perangkap lainnya. Serangga yang terdapat pada perkebunan kelapa sawit di provinsi Kalimantan tengah terdiri atas 9 ordo dan 21 famili. Serangga yang ditangkap berperan sebagai fitofag, entomofag dan scavenger. Keanekaragaman serangga pada perkebunan kelapa sawit yang terdapat di Afdeling 11, Afdeling 12 dan Afdeling 8 termasuk kriteria tinggi.
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
Uji Kinerja Alat Kastrasi Modifikasi Bambu pada Areal Tanaman Belum Menghasilkan PT. Sawit Sejahtera Steven Saputra Jaya Sirait; Tarmadja, Samsuri; Ardiani, Fani
AGROISTA : Jurnal Agroteknologi Vol. 9 No. 2 (2025): NOVEMBER
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v9i2.1518

Abstract

This research was conducted at PT. Sawit Sejahtera, South Sumatra Province, from February to April 2024. This study aimed to assess and test the effectiveness of castration tools by comparing 8 cm dodos with modified bamboo tools for castration on immature oil palm plants. This study used a survey method to describe the research location and collect primary data. The research was conducted in Block E-01, which has a hilly area. Each tool was tested on 150 sample trees located on 10 different terraces. The data observed included worker output, work quality, and safety risks. Data were analyzed using an independent t-test. The results showed that the use of the modified bamboo tool for castration was generally more effective as it produced 15.71% higher worker output compared to the dodos tool. Work quality was also better with the bamboo tool, as no fronds were damaged in the sample trees, while 126 trees or 84% of the sample trees were damaged due to the dodos tool. However, in terms of safety, no accidents were reported from using either tool. Nonetheless, the tool's effectiveness comes with the note that castration must be performed monthly.
Co-Authors Arlyna Budi Pustika Cahyaningrum, Estu Elfatma, Olivia Fani Ardiani 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 Steven Saputra Jaya Sirait Tarigan, Rio Ganda Terkelin Valensi Kautsar, Valensi Wirianata, Herry Yuniasih, Betti