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All Journal AGRIKA Gontor AGROTECH Science Journal Jurnal Penelitian Pertanian Terapan SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi Jurnal SEPA (Social Economic and Agribusiness Journal) Agrin : Jurnal Penelitian Pertanian JMTS: Jurnal Mitra Teknik Sipil AGROTEK: Jurnal Ilmiah Ilmu Pertanian ZIRAA'AH MAJALAH ILMIAH PERTANIAN Jurnal Triton Journal of Civil Engineering and Planning (JCEP) Agroradix : Jurnal Ilmu Pertanian Jurnal Agriment STATIKA: Jurnal Teknik Sipil AGROTECH Research Journal Jurnal Ilmiah Mahasiswa Pertanian Journal of Agribusiness and Community Development Umus AMMA : Jurnal Pengabdian Masyarakat Jurnal Ilmiah Mahasiswa Agrokomplek International Journal of Mechanical, Electrical and Civil Engineering Jurnal Pertanian Agros
Rajiman Rajiman
Politeknik Pembangunan Pertanian Yogyakarta Magelang
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Nursing Social Sciences Transportation Veterinary Other

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Pembuatan Kompor Portebel Menggunakan Spritus/Alkohol Desa Bagelen Rajiman; Any Nurhasanah; Ronny Hasudungan Purba; Titis Lukita Sari
AMMA : Jurnal Pengabdian Masyarakat Vol. 1 No. 06 (2022): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

Village community empowerment is a conscious effort from government officials both at the village and district levels, especially towards a potential that exists in the village as a form of assets/wealth owned by the village. This research is about community service in making portable stoves. The method used is descriptive qualitative research. This research was conducted in Bagelan Village, Gedong Tataan District, Pesawaran Regency. Participants in this activity are residents of Bagelan Village. The purpose of this study is to reveal knowledge about portable suitcases, and as a form of concern for areas that still lack funds or sales of LPG gas. From this research, this portable stove is very useful because in terms of its simple use and economical cost, the Pertebel stove can also overcome the scarcity of other fuels such as 3kg LPG gas.
Pemeliharaan Saluran Drainase Di Desa Sumber Agung Rajiman; Hery Riyanto; Susilowati; Any Nurhasanah
AMMA : Jurnal Pengabdian Masyarakat Vol. 1 No. 06 (2022): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

The canal is one of the complementary buildings on the road segment in meeting the technical requirements of road infrastructure. The highway channel serves to circulate air that can interfere with road users, so that the road body remains dry. This research was conducted in Sumber Agung Village, Kemiling District, Bandar Lampung City on September 17, 2021. This research method is descriptive qualitative. The purpose of this study is to explain to the public what is meant by a drainage system and explain how the procedures for a good road drainage system are to prevent this from happening in the road area. The conclusion of this study is that rural problems are problems that have a fairly high complexity so that a comprehensive and sustainable solution is needed. The participation of local communities in the implementation of community empowerment is still low due to the lack of public awareness in maintaining drainage channels.
Pembuatan Fogging Portable di Kampung Sidoarjo, Kecamatan Umpu Semenguk Rajiman; Susilowati; Any Nurhasanah; Ronny Hasundungan Purba
AMMA : Jurnal Pengabdian Masyarakat Vol. 1 No. 06 (2022): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

Danau Tirta Gangga merupakan sebuah danau buatan yang terletak di Kabupaten Lampung Tengah, Kecamatan Seputih Banyak, tepatnya berada di Kampung Swastika Buana. Danau ini memiliki luas sekitar 150 hektar dan digunakan oleh masyarakat untuk pengairan lahan pertanian sekitar 3000 ha di sekitar kawasan. Danau Tirta Gangga memiliki daya tarik tersendiri terhadap wisatawan lokal untuk menikmati keindahan alam dan pemandangannya. Namun beberapa kegiatan masyarakat menyebabkan aspek keindahan alam menjadi berkurang dan menimbulkan permasalahan pada suplai air baku untuk pertanian.Sehingga diperlukan suatu tindakan yang dapat mempertahankan fungsi awal dari danau ini bahkan menambahkan nilai keekonomisan bagi masyarakat. Pengabdian ini bertujuan untuk mengatasi permasalahan tersebut dengan memetakan potensi geowisata baru yang dapat dikembangkan dan dikelola oleh masyarakat, mengedukasi masyarakat dalam peningkatan kualitas dan keunggulan/kearifan lokal yang berimbas pada peningkatan nilai ekonomi kawasan Danau Tirta Gangga dengan pemanfaatan teknologi informasi untuk media promosi (dengan Drone) profil kawasan wisata Danau Tirta Gangga.Manfaat dari pengabdian ini adalah terpetakannya potensi geowisata baru yang dapat dikembangkan dan dikelola oleh masyarakat serta terbentuknya media promosi video profil kawasan wisata Danau Tirta Gangga yang dapat disebarkan melalui media internet sehingga wisatawan dapat dengan mudah mengenal dan tertarik untuk berkunjung ke Danau Tirta Gangga.
Pemanfaatan Minyak Goreng Bekas Menjadi Biodiesel di Desa Gedung Harapan Kec. Jatiagung Rajiman; Sugito; Yulfriwini; Ikhsan Karim
AMMA : Jurnal Pengabdian Masyarakat Vol. 1 No. 06 (2022): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

Energy needs are increasing, while the energy sources used so far have come from petroleum, natural gas and coal (fossil fuels) which are non-renewable and the amount always decreases from time to time. Energy sources derived from renewable fuels are a solution to this problem. One type of product from renewable energy sources derived from vegetable oil is biodiesel (methyl ester). Biodiesel is a monoalkyl ester of long chain fatty acids contained in vegetable oils or animal fats for use as diesel engine fuel. The implementation stage of this activity begins with the preparation of raw materials in the form of preparation of used cooking oil and filtering. The second stage is dissolving caustic soda (2-3 g) into methanol liquid (5:1 methanol water). The third stage is mixing the oil with a solution of methanol and caustic soda into a bottle and allowed to stand for 24 hours, this stage aims to separate the glycerol content in the oil. The fourth step is to separate the oil with solid glycerol and transfer it to an empty container to be mixed with warm water, this aims to remove excess methanol liquid in the oil, let stand for 24 hours. The last step is to separate the oil from the mixing water. From the results of this experiment, a ready-to-use biodiesel liquid was obtained.
Meningkatkan Perekonomiaan Masyarakat Melalui Media Sosial Rajiman; Juniardi; Hery Riyanto; Susilowati; I Ketut Aditya; Kadek Semaredane
AMMA : Jurnal Pengabdian Masyarakat Vol. 1 No. 06 (2022): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

The development of information technology brings a change in society. Social media is a technological sophistication-based media classified from various forms, such as magazines, internet forums, weblogs, social blogs, microblogging, wikis, broadcasts, photos or images, videos, ratings and social bookmarking. Social media has several impacts on life, namely positive impacts and negative impacts. This community service activity was carried out on June 15, 2021 and is located in the Selaki Beach Tataan Building Village. The method in this research is descriptive qualitative. The purpose of this community service activity is to improve the community's economy through social media, introduce tourist attractions, and introduce handicrafts in the Selaki Beach Tataan Building Village. This study concluded that in the coastal area, Selaki requires a cellphone or still has limited signal and only certain sim cards can still be accessed, while those who have children only have sophisticated cellphones to attend online schools.
Optimalisasi Potensi Geowisata Danau Tirta Gangga Kampung Swastika Buana, Kecamatan Seputih Banyak, Lampung Tengah Rajiman; Yulfriwini; Ikhsan Karim; Aprizal; I Komang Andika Putra; Revo Rudita
AMMA : Jurnal Pengabdian Masyarakat Vol. 1 No. 06 (2022): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

Lake Tirta Gangga is an artificial lake located in Central Lampung Regency, Seputih Banyak District, precisely in Swastika Buana Village. This lake has an area of ​​about 150 hectares and is used by the community for irrigation of about 3000 ha of agricultural land around the area. Lake Tirta Gangga has its own charm for local tourists to enjoy its natural beauty and scenery. However, some community activities cause the aspect of natural beauty to be reduced and cause problems in the supply of raw water for agriculture. So we need an action that can maintain the initial function of this lake and even add economic value to the community. This service aims to overcome these problems by mapping the potential of new geotourism that can be developed and managed by the community, educating the community in improving the quality and excellence / local wisdom which has an impact on increasing the economic value of the Tirta Gangga Lake area by utilizing information technology for media promotion (with drones) profile of the Lake Tirta Gangga tourist area. The benefits of this service are the mapping of new geotourism potentials that can be developed and managed by the community as well as the formation of video promotion media for the profile of the Lake Tirta Gangga tourist area which can be disseminated through internet media so that tourists can easily recognize and be interested in visit Tirta Gangga Lake.
ANALISIS RISIKO KECELAKAAN KERJA PADA PROYEK GEDUNG BERTINGKAT MENGGUNAKAN METODE SEVERITY INDEX DAN CONSTRUCTION SAFETY ANALYSIS Azzakiyah, Narindha Nasywa; Zhafira, Elian; Rajiman; Dwiyana, Putri Ayu
JMTS: Jurnal Mitra Teknik Sipil Volume 8, Nomor 4, November 2025
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v8i4.34577

Abstract

The dominance of the construction sector presents its own challenges, one of which is the risk of occupational accidents. This fact is evidenced by cases of work-related accidents in structural work at the Crystal Boulevard Shop House development project in Summarecon Bekasi. This situation is driven by the occurrence of unsafe actions and unsafe conditions during the implementation of work activities. This study aims to identify potential occupational accident risks, analyze the level of these risks, and assess risk control measures in structural work, including rebar installation, formwork, and concreting activities. The methods employed in this study are the Severity Index and Construction Safety Analysis. The results are 27 risk variables related to occupational accidents were identified in structural work, with 27% categorized as low risk and 73% as medium risk. The risk control analysis conducted refers to the hierarchy of controls based on ISO 45001:2018 standards. This approach provides systematic results by organizing controls according to priority order, include substitution, engineering controls, administrative controls, and the use of personal protective equipment (PPE). Abstrak Dominasi sektor konstruksi memunculkan tantangan tersendiri, salah satunya adalah risiko kecelakaan kerja. Fakta ini diperkuat oleh adanya kasus kecelakaan kerja pada pekerjaan struktur di proyek pembangunan Ruko Crystal Boulevard Summarecon Bekasi. Hal tersebut dipicu oleh adanya tindakan tidak aman dan kondisi tidak aman selama pelaksanaan pekerjaan. Penelitian ini bertujuan untuk mengidentifikasi potensi risiko kecelakaan kerja, menganalisis tingkat risiko dan menganalisis pengendalian risiko pada pekerjaan struktur yaitu pembesian, perancah, bekisting dan pengecoran. Metode yang digunakan yaitu Severity Index dan Construction Safety Analysis (CSA). Hasil penelitian menunjukkan bahwa terdapat 27 variabel risiko kecelakaan yang teridentifikasi pada pekerjaan struktur, diantaranya 27% risiko rendah (low) dan 73% risiko sedang (medium). Analisis pengendalian risiko yang dilakukan mengacu pada hierarki pengendalian berdasarkan standar ISO 45001:2018. Pendekatan ini memberikan hasil yang sistematis dengan menyusun pengendalian berdasarkan urutan prioritas, yaitu subtitusi, engineering control, administratif dan Alat Pelindung Diri (APD).
Keragaman Karakter Agronomi dan Morfologi Beberapa Varietas Tanaman Sawi Hijau (Brassica juncea L.) Diva Izzatu Resti; Rajiman Rajiman; Suharno Suharno
AGRORADIX : Jurnal Ilmu Pertanian Vol 9 No 1 (2025): Agustus-Desember 2025
Publisher : Agroteknologi Fakultas Pertanian Universitas Islam Darul 'Ulum (UNISDA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52166/agroteknologi.v9i1.9928

Abstract

Salah satu tanaman hortikultura yang populer di Indonesia adalah sawi hijau. Tanaman ini mempunyai nilai ekonomi yang tinggi setelah tanaman lainnya seperti kubis, kol, dan brokoli, sehingga sayuran jenis ini mempunyai prospek pengembangan yang potensial di bidang pertanian. Penelitian ini bertujuan untuk mengetahui karakter agronomi dan morfologi beberapa varietas tanaman sawi hijau. Penelitian ini dilaksanakan pada bulan Februari – Maret 2025 di lahan CV. Triasputra Agro Maju Sejahtera yang terletak di Kecamatan Ngluwar, Kabupaten Magelang, Jawa Tengah pada ketinggian tempat 202 mdpl dan suhu rata-rata 22-32ºC. Penelitian menggunakan Rancangan Acak Kelompok Lengkap (RAKL) dengan 4 perlakuan varietas dan 4 ulangan. Perlakuan varietas terdiri dari A: Varietas PSA, B: Varietas Tossan, C: Varietas Juwita 01, dan D: Varietas Kometa. Parameter pengamatan terdiri dari karakter agronomi umur panen, tinggi tanaman, panjang daun, panjang tangkai, lebar daun, jumlah daun, produktivitas dan daya simpan. Karakter morfologi terdiri dari bentuk daun terluar, warna daun terluar, bentuk biji, warna biji. Data karakter agronomi dianalisis dengan uji F apabila terdapat beda nyata maka pengujian dilanjutkan dengan Uji BNJ 5% menggunakan software PKBT-STAT versi 3.2. Karakter morfologi dianalisis deskriptif dengan berpedoman pada Panduan Pelaksana Uji (PPU) dan International Union for the Protection of New Varieties of Plants (UPOV). Hasil penelitian menunjukkan bahwa secara agronomi, perlakuan varietas nyata berpengaruh terhadap parameter tinggi tanaman, panjang daun, panjang tangkai, lebar daun, jumlah daun, dan produktivitas. Secara morfologi menunjukkan Varietas PSA mempunyai perbedaan pada parameter warna daun dan bentuk daun terluar dari varietas lainnya.
Cost and Time Optimization Analysis using the Time Cost Trade Off Method Dwiyana, Putri Ayu; Siti Agmaliza; Rajiman
Journal of Civil Engineering and Planning (JCEP) Vol. 6 No. 2 (2025)
Publisher : Program Studi Sarjana Teknik Sipil Universitas Internasional Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37253/jcep.v6i2.11446

Abstract

The implementation of construction projects often faces delays that are difficult to avoid, as experienced in the construction of the City X Hospital Building, where there was a discrepancy between the initial plan and actual field implementation, resulting in a two-week delay in weekly progress. This study aims to analyze time and cost efficiency and compare the effectiveness of alternatives between extending working hours and adding labor using the Time Cost Trade Off method. This research is comparative, comparing the total cost and duration of the project for both acceleration alternatives. The total project cost under normal conditions was recorded at IDR 7,289,386,643.45 with a duration of 86 days until the completion of the third floor. The analysis shows that extending working hours by 1 to 4 hours resulted in costs of IDR 14,584,817,481; IDR 21,871,659,072; IDR 28,672,701,971; and IDR 34,564,808,294, with cost efficiency of –100.08%, –200.05%, –293.35%, and –374.18%, respectively. The project duration was reduced to 64, 50, 41, and 36 days, with time efficiency of 26%, 42%, 53%, and 58%. Meanwhile, the alternative of adding labor resulted in a total cost of IDR 13,660,989,499 with a cost efficiency of –87.41% and a project duration of 64 days (26% time efficiency). Based on these results, both extending working hours by one hour and adding labor showed the most efficient outcomes, but overall, adding labor was considered more optimal as it achieved the same acceleration with the lowest total cost.
PENGARUH TAKARAN UREA TERHADAP HASIL DAN MUTU BENIH BAWANG MERAH Sari Megawati; Rajiman; Ismadi; Abid Raif Rahmatullah
Jurnal Pertanian Agros Vol 28 No 1 (2026): EDISI JANUARI
Publisher : Fakultas Pertanian Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v28i1.176

Abstract

Shallot (Allium ascalonicum L.) is a high-value horticultural commodity with continuously increasing demand. The success of shallot cultivation, particularly for seed production, largely depends on the availability of high-quality seeds, which is influenced by fertilization practices. Nitrogen (N) plays an important role in plant growth and yield formation; however, inappropriate N application can reduce seed quality. This study aimed to evaluate the effects of different urea fertilizer doses on the growth, yield, and seed quality of shallots, as well as to determine the optimal and efficient urea dosage. The research was conducted in Nglipar District, Gunungkidul Regency, Special Region of Yogyakarta, from April to December 2025, using a Randomized Complete Block Design with four urea dose treatments, namely 0, 100, 150, and 200 kg/ha, each replicated six times. Observed parameters included vegetative growth, yield components, and the physical and chemical quality of bulbs. The results showed that increasing urea doses tended to enhance plant height and leaf number up to a certain level, but did not always have a significant effect at the maximum vegetative stage. A urea dose of 100 kg/ha produced the highest bulb weight, productivity, and the best physical and chemical bulb quality compared to higher doses. Application of urea above the optimal rate reduced yield and nitrogen use efficiency. Therefore, a urea dose of 100 kg/ha is recommended as the optimal rate to improve the quantity and quality of shallot seed.  
Co-Authors A Malik Abid Raif Rahmatullah Aditya Mahatidanar Hidayat Agus Wartapa, Agus Aldri Frinaldi Ananti Yekti Any Nurhasanah Aprilia Debora C.J. Aprizal Arif Anshori Arif Anshori Arif Rahman Hakim Assavero Muhammad Fathoni Azzakiyah, Narindha Nasywa Budi Ribowo, Anggarani Dharmais, Fajri Diva Izzatu Resti Eko Hanudin Endang Sulistyaningsih Erna Widiastuti Gunawan Yulianto Hery Riyanto I Ketut Aditya I Komang Andika Putra I Made Pika Adiwijaya I.M P Adiwijaya I.M.P. Adiwijaya Ika Nur Fitriana Ikhsan Karim Ilyas Sadad Indri Mulyani Inggit Anugriyya Netriza Ismadi Jhonson Limbong Juniardi Kadek Semaredane Lestari Handayani Lestari Mardiyanti, Titik Megawati, Sari N.D Permata Nalinda, Rika Nurmala Devi Permata Nursidik, Mohamad Prapto Yudono Putri Ayu Dwiyana Revo Rudita Ronny Hasudungan Purba Ronny Hasundungan Purba Siti Agmaliza Siwitri Munambar Sribiyanto, Bowo SUGITO Suharno Suharno Sulindra, Muhammad Rizky Susanti, Junita Susilowati Titis Lukita Sari Tri Wibowo, Haris William Nichodemust Richard Yulfriwini Zhafira, Elian