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Arief Rahman
Politeknik Pertanian Negeri Samarinda
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Social Sciences Other

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STUDI KASUS ANALISIS BEBAN KERJA BERDASARKAN WAKTU KERJA KARYAWAN PADA UNIT PEMANENAN AFDELING 1 DI KEBUN KELAPA SAWIT PT. XYZ Muhammad Irwansyah Barkhati Setiawan; Arief Rahman; Faradilla; Muhammad Atta Bary
JURNAL AGRIMENT Vol 6 No 2 (2021): Desember 2021
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (236.403 KB) | DOI: 10.51967/jurnalagriment.v6i2.578

Abstract

The importance of quality human resources in oil palm plantations in the field of harvesting to achieve high productivity, the success of harvesters is also very much determined by the pressure of the workload that is owned by workers, the workload depends on the job description compiled by the company. also the possibility of a workload that is too high. This study aims to analyze the working time of harvest employees and determine the productive, unproductive and personal time of harvest employees and analyze the number of harvest employees needed at PT. XYZ. This research was conducted at PT. XYZ Tanjung Batu Village, Derawan Island District, Berau Regency, East Kalimantan. This research was conducted using work sampling data collection method, namely observing the working time of harvest employees with 10 minutes intervals for 7 working hours by noting productive time, unproductive time and personal time. The results from the observations of researchers through the characteristics of harvest workers that affect the characteristics of age and height characteristics, it is proven that the age of 20 - 29 years is faster to reach the target or basis compared to the age of 30 - 49 years. And the characteristics of height have an effect on reaching the target, it is proven that height 170 - 179 cm reaches the target or base faster than 150 - 159 cm. And the observations of researchers from 16 respondents harvest productive working time an average of 73.52%, 17.20% unproductive time and 9.28% personal time. Calculation of the need for harvest workers in 1 division (763.33 ha) results in 33,644 rounded up to 34 harvest workers, the results needed in 1 division (763.33 ha) through the calculation of the time of completion of tasks (WPT).
The Effect of Pyraclostrobin Application on Yield of Tea (Camelia sinensis (L.) O. Kuntze) under Wet Season Arief Rahman; Eka Tarwaca Susila Putra; Sriyanto Waluyo
Jurnal Ilmu Pertanian Vol 3, No 3 (2018): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1208.878 KB) | DOI: 10.22146/ipas.26428

Abstract

This field experiment aimed to study the effect of pyraclostrobin on tea production and to determine optimum concentration in order to maintain high yield during the period of wet season. The experiment was arranged in Randomized Completely Block Design (RCBD) using single factor and three blocks as replications. The pyraclostrobin doses, consisted of 4 levels, 0, 50, 100, and 150 g.ha-1, each will be tested on three tea clones. Clones tea tested are TRI 2025, Gambung 9 and PGL 15. Data was evaluated for chlorophyll content, photosynthetic rate, number of pecco, number of dormant shoot (banjhi), number of total shoot, pecco fresh weight, banjhi fresh weight, total shoot fresh weight, and shoot dry weight. Data were analysed by using Analysis of Variance (ANOVA) and LSD test at α = 5%. The results informed that pyraclostrobin was able to improve chlorophyll content on TRI 2025 clone, and improved photosynthetic rate on Gambung 9 clone. However,  there was no significant different among plants treated with pyraclostrobin on a yield components, i.e., number of pecco, number of banjhi, pecco fresh weight, banjhi fresh weight, total shoot fresh weight, and total shoot dry weight.
Arahan Perubahan Penggunaan Lahan Berbasis Rendah Emisi Karbon Di Hulu Das Jeneberang: The Direction of Land Use Change Based Low Carbon Emission on Jeneberang Upper Watershed Adelia Juli Kardika; Khilma Sufiana; Arief Rahman; Humairo Aziza
HUTAN TROPIKA Vol 16 No 2 (2021): Volume 16 Nomor 2 Tahun 2021
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v16i2.3539

Abstract

Jeneberang watershed is one of the watersheds in the MAMMINASATA area (Maros, Makassar, Sungguminasa and Takalar). The watershed, upstream, is now in a critical condition. This study aims to identify and map land use patterns, carbon stock emissions, both in the present condition and after rehabilitation condition. The data and information used in this research are Landsat 7 ETM+ in 2006 and 2010, the Jeneberang watershed boundary map, critical land map, forest area map, rainfall data, population data, and land capability class map. The method used is the interpretation of land use or land cover, biomass calculation, and analysis with REDD ABACUS. The results showed that land use was dominated by plantations and then followed by low density forest, agricultural dry land, rice fields, water bodies, plantation forests, vacant land, shrubs, settlements, high density forests, and savannas. The direction of land cover/land use that can increase carbon sequestration is the conversion of barren land, shrubs and savannas into plantation forests and agroforestry. Potential carbon stocks for plantations, dry land agriculture and rice fields will increase to 2.295.626,32 tons in 2026.
The Effect of Pyraclostrobin Application on Yield of Tea (Camelia sinensis (L.) O. Kuntze) under Wet Season Arief Rahman; Eka Tarwaca Susila Putra; Sriyanto Waluyo
Jurnal Ilmu Pertanian Vol 3, No 3 (2018): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.26428

Abstract

This field experiment aimed to study the effect of pyraclostrobin on tea production and to determine optimum concentration in order to maintain high yield during the period of wet season. The experiment was arranged in Randomized Completely Block Design (RCBD) using single factor and three blocks as replications. The pyraclostrobin doses, consisted of 4 levels, 0, 50, 100, and 150 g.ha-1, each will be tested on three tea clones. Clones tea tested are TRI 2025, Gambung 9 and PGL 15. Data was evaluated for chlorophyll content, photosynthetic rate, number of pecco, number of dormant shoot (banjhi), number of total shoot, pecco fresh weight, banjhi fresh weight, total shoot fresh weight, and shoot dry weight. Data were analysed by using Analysis of Variance (ANOVA) and LSD test at α = 5%. The results informed that pyraclostrobin was able to improve chlorophyll content on TRI 2025 clone, and improved photosynthetic rate on Gambung 9 clone. However,  there was no significant different among plants treated with pyraclostrobin on a yield components, i.e., number of pecco, number of banjhi, pecco fresh weight, banjhi fresh weight, total shoot fresh weight, and total shoot dry weight.
PEMANFAATAN LIMBAH SABUT KELAPA (Cocos nucifera L.) SEBAGAI KOMPOS DENGAN MENGGUNAKAN BIOAKTIVATOR EM4 Daryono Daryono; Rusmini Rusmini; Yuanita; Nur hidayat; Riama Rita Manullang; Arief Rahman; Rusli Anwar; Anis Syauqi
JURNAL AGRIMENT Vol 7 No 1 (2022): Juni 2022
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (231.314 KB) | DOI: 10.51967/jurnalagriment.v7i1.1173

Abstract

This The background of this research is waste from coco coir with bioactivator EM4, the manufacture of solid fertilizer utilizing waste from coco coir that is not treated properly has quite an impact on environmental pollution. Solid organic fertilizer is the decomposition of organic matter by a complex compound reform process with the help of microorganisms. The purpose of this study was to measure the time of making solid organic fertilizer, to analyze the nutrient content of N, P, K, C-organic, C/N ratio and pH. The research was conducted on Jl. Samratulangi ex. Gunung Panjang, Kec. Keledang River, East Kalimantan Province. This research lasts for 2 months from January to February 2021. The results of the study, the length of time in the P1 fertilizer treatment was finished on the 16th day while the P2 fertilizer had been finished on the 21st day. Analysis of the nutrient content in the P1 treatment was N total 0.084% , P total 0.0301%, K total of 0.03994 % , C/N ratio was 52.10, and P2 treatment, namely N total 0.098 %, P total 0.0403 %, K total 0.06534 %, C/N ratio 45.9, did not meet the Quality Standards of the Regulation of the Minister of Agriculture of the compost requirements number 261/Permentan/ SR.310/4/2019, while the total P1 C-organic content was 0.44,512 %, pH was 5.38 and P2 C-organic total was 45.032 %, pH 5.74 already meets the Quality Standards of the Regulation of the Minister of Agriculture for compost requirements number 261/Permentan/SR.310/4/2019
Kombinasi Tulang Ikan, Kepala Udang dan Bonggol Pisang untuk Meningkatkan Kualitas MOL Sebagai Aktivator Pengomposan Sri Ngapiyatun; Humairo Aziza; Arief Rahman; Joko Triyono; Wartomo Wartomo
Jurnal Pertanian Terpadu Vol 10 No 1 (2022): Jurnal Pertanian Terpadu Jilid X Nomor 1 Juni 2022
Publisher : Sekolah Tinggi Pertanian Kutai Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36084/jpt..v10i1.381

Abstract

Pertanian konvensional merupakan pertanian yang menggantungkan input produksi dari bahan-bahan kimia, karena praktis dan cepat memberikan hasil panen yang tinggi, tetapi berdampak negatif pada lingkungan seperti kesehatan manusia serta ekosistem. Oleh karena itu perlu terobosan teknologi baru menggunakan produk organik yang memanfaatkan limbah pertanian yang tidak bermanfaat dan mencemari lingkungan untuk dijadikan produk bermanfaat serta memiliki nilai jual yaitu kompos. Memanfaatkan limbah tulang ikan, kepala udang dan bonggol pisang untuk dibuat mikroorganisme lokal (MOL) sebagai aktivator dalam pembuatan kompos. Penelitian ini bertujuan untuk mengetahui pada hari ke berapa kompos jadi, menganalisis sifat fisik dan kimia kompos, dan mengetahui kualitas kompos hasil penelitian dengan membandingkan standar Permentan No. 70/Permentan/SR.140/10/2011. Penelitian ini berlangsung selama 4 bulan, mulai Agustus hingga November 2021 yang terdiri dari survei lokasi, persiapan, pembuatan MOL dan kompos serta analisis unsur hara yang dilaksanakan di tempat terpisah yaitu di Laboratorium Produksi (pembuatan MOL dan kompos) dan di Laboratorium Ilmu Tanah (analisis kimia kompos). Lama pengomposan hingga jadi memerlukan waktu 23 hari dengan ciri-ciri teksturnya hambur, bentuk hancur, warna kompos hitam, tidak berbau dan suhu stabil yaitu mendekati suhu ruang. Kualitas kompos hasil penelitian berdasarkan standar Permentan No. 70/Permentan/SR.140/10/2011 untuk pH H2O, C Organik, dan C/N sudah sesuai standar, sedangkan untuk kandungan N, P dan K belum sesuai standar.
Pemanfaatan Tanah Bekas Tambang Untuk Pertumbuhan Tanaman Perkebunan Arief Rahman; Sri Ngapiyatun; Wartomo Wartomo
Rawa Sains: Jurnal Sains STIPER Amuntai Vol 11 No 1 (2021): Edisi Juni 2021
Publisher : LPPM Sekolah Tinggi Ilmu Pertanian Amuntai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36589/rs.v11i1.168

Abstract

Tambang batubara di Indonesia umumnya melakukan kegiatannya dengan teknik penambangan terbuka. Permasalahan utama yang timbul di wilayah bekas tambang batubara adalah perubahan lingkungan yang berdampak pada perubahan fisik, kimiawi, dan biologi tanah serta menurunnya produktivitas tanah akibat lahan menjadi tanah tandus atau gundul. Tujuan penelitian adalah untuk mengetahui tanaman yang sesuai pada lahan pasca tambang batubara yang diberi pupuk organik dan kapur. Penelitian ini dilakukan selama bulan Januari sampai dengan September 2019 bertempat di persemaian Politeknik Pertanian Negeri Samarinda dengan sampel tanah berasal dari lokasi bekas tambang batubara Desa Berambai Kecamatan Samarinda Utara. Penelitian menggunakan Rancangan Acak Lengkap (RAL) 2 faktor dengan 15 ulangan. Faktor pertama yaitu: JP (Jarak pagar), JM (Jambu mete), dan LG (Lamtoro gung). sedangkan faktor kedua yaitu: Po (Tanah bekas tambang batu bara), P1 (Tanah bekas tambang batu bara yang diberi kapur dolomit sebanyak 3,8 g/polybag), P2 (Tanah bekas tambang batu bara yang diberi pupuk organik sebanyak 150 g/polybag), dan P3 (Tanah bekas tambang batu bara yang diberi kapur sebanyak 3,8 g/polybag dan pupuk organik sebanyak 150 g/polybag). Hasil penelitian menunjukkan bahwa tanah bekas tambang batubara dapat diperbaiki kesuburannya dengan memberikan kapur dan pupuk organik serta perlakuan media tanam P3 memberikan pengaruh nyata terhadap tinggi tanaman lamtoro gung.
RESPON TANAMAN KEDELAI (Glycine max (L), Merril) TERHADAP PEMBERIAN KAPUR DOLOMIT DAN PUPUK MIKROBA M-Bio PADA TANAH GAMBUT PEDALAMAN Arief Rahman; Suparno Suparno; Shella A.J. W.
Agrienvi: Jurnal Ilmu Pertanian Vol. 15 No. 1 (2021): Journal Agrienvi
Publisher : Agrienvi: Jurnal Ilmu Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research was conducted on farmers' land in Pulau Damar village, Banjang district, Hulu Sungai Utara Regency from February to May 2019. The study was aimed to determine the effect of dolomite lime and M-bio microbes on soybean yield in peat soil. Experiments were arranged based on a factorial randomized block design with three replications. The first factor is dolomite lime which consists of 3 levels, namely was 0, 3, and 6 t ha-1, and the second factor is M-bio microbe fertilizer which consists of 4 levels, namely 0, 2, 4, and 6 ml L 1 water. The results showed that the interaction between dolomite lime and M-bio microbe fertilizer significantly affected the dry weight of 100 soybean seeds but did not significantly affect the number of filled pods per plant, the number of seeds per plant, and the chlorophyll content of soybean leaves. The highest dry weight of 100 grains of 10.08 g plant-1 was obtained by giving 3 t ha-1 dolomite lime and 6 ml L-1 water of M-bio microbe fertilizer.
ISOLASI DAN KARAKTERISASI MORFOLOGI BAKTERI DEKOMPOSER LIMBAH KULIT UDANG DAN LIMBAH KELAPA Arief Rahman; Rusmini Rusmini; Daryono Daryono
Median : Jurnal Ilmu Ilmu Eksakta Vol. 14 No. 3 (2022): Jurnal Median
Publisher : Universitas Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (780.258 KB) | DOI: 10.33506/md.v14i3.1996

Abstract

Konsep pertanian berkelanjutan adalah dengan memanfaatkan bahan-bahan alami atau organik dan mikroorgansime sebagai dekomposer dan penyedia unsur hara bagi tanaman. Limbah-limbah seperti limbah udang dan kelapa merupakan bahan alami yang bisa menjadi aktivator alami pengurai bahan organik atau sebagai bahan pengomposan. Limbah tersebut berpeluang untuk menghasilkan bakteri positif untuk pengurai bahan organik. Tujuan penelitian ini adalah mengisolasi dan mengidentifikasi karakteristik morfologi bakteri pada limbah kulit udang dan limbah kelapa. Penelitian ini dilakukan di Laboratorium Agronomi Jurusan Perkebunan Politeknik Pertanian Negeri Samarinda dari bulan Juli sampai dengan September 2022. Isolasi bakteri dilakukan dengan metode serial dilution kemudian ditumbuhkan di media NA (Nutrient Agar) menggunakan metode spread plate. Identifikasi bakteri dilakukan dengan mengamati morfologi koloni. Isolat yang berhasil diperoleh sebanyak 44 isolat bakteri dengan isolat bakteri terbanyak berada pada perlakuan A2L2 sebanyak 9 isolat bakteri. Berdasarkan karakteristik morfologi bakteri isolat bakteri yang diperoleh termasuk ke dalam kelompok genus Bacillus dan Pseudomonas.
Pemberdayaan Ibu-Ibu Rumah Tangga Desa Loa Janan Ulu Dalam Pemanfaatan Limbah Rumah Tangga Metode Takakura Menjadi Pupuk Organik Untuk Mendukung Rumah Pangan Lestari (RPL) Rossy Mirasari; Arief Rahman; Rusli Anwar; Sri Marlendi
Jurnal Pengabdian Kampus Vol 10 No 2 (2023): Jurnal Pengabdian Kampus
Publisher : LPPM Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52850/jpmupr.v10i2.11446

Abstract

In this era of globalization, environmental problems have become global issues. Society are aware of the dangers posed by environmental damage. One of the causes of environmental damage is environmental pollution caused by the accumulation of waste produced by humans. Loa Janan Ulu, Kutai Kartanegara regency is the village with the highest density with 1,007.90 population/km2. There are 3,401 households in the village area ladder. Housewives are also part of society produce waste or rubbish every day. Every day kitchen activities are included contributes quite a significant amount of waste. Kitchen waste that has been around all this time just thrown straight into landfill or burned straight away. Manage of kitchen waste needs to be dealt with so that it can be utilized as an ingredient for organic fertilizer. Composting is one of the efforts to process waste in order to recycle it organic waste with the concept of decomposing organic materials through processes weathering, besides being non-damaging and environmentally friendly. The simple way to make compost is the takakura basket method with help Local Organism Molecules. The solutions offered are: 1. Giving information about processing kitchen waste using the zero waste concept; 2. Giving information on the benefits of using organic fertilizer for partners and the environment with socialization; 3. Providing training on processing organic waste using methods Takakura makes simple use of surrounding resources. this activity planned for 4 months and carried out in Loa Janan Ulu Village, District Loa Janan, Kutai Kartanegara Regency. The result of the dedication of Loa Village Women Janan Ulu felt benefits such as increasing knowledge and insight handling organic household waste so that it becomes added value for plants in the yard includes vegetable plants that are consumed every day as well as ornamental plants. The follow-up to this activity requires training grow crops in the yard properly to utilize the land area available yard.
Co-Authors Daryono Daryono Daryono Eka Tarwaca Susila Putra Hadi Nasbey Humairo Aziza Joko Triyono Kardika, Adelia Juli Khilma Sufiana Muhammad Atta Bary Muhammad Irwansyah Barkhati Setiawan Nur hidayat Riama Rita Manullang Rossy Mirasari Rusli Anwar Rusli Anwar Rusmini Rusmini Rusmini Shella A.J. W. Sri Marlendi Sri Ngapiyatun Sriyanto Waluyo Suparno Suparno Syauqi, Anis Wartomo Yuanita