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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) Jurnal Ilmu Pertanian BIOTROPIA - The Southeast Asian Journal of Tropical Biology Journal of Tropical Soils Journal of Politic and Government Studies Jurnal Sumberdaya Lahan Buletin Palawija Journal of Degraded and Mining Lands Management Jurnal Teknologi Informasi dan Ilmu Komputer AGRIVITA, Journal of Agricultural Science Buletin Kebun Raya Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Penelitian Karet JOIN (Jurnal Online Informatika) JOIV : International Journal on Informatics Visualization Jurnal AGROSAINS dan TEKNOLOGI Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Journal of Tropical Crop Science Journal of Tropical Horticulture JURNAL AGRONIDA Jurnal Kelautan Nasional Molekul: Jurnal Ilmiah Kimia Jurnal Jamu Indonesia Agroekoteknologi Tropika Lembab Indonesian Journal of Electrical Engineering and Computer Science Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura Buletin Palawija Jurnal Risalah Kebijakan Pertanian dan Lingkungan Buletin Agroteknologi Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Jurnal Pusat Inovasi Masyarakat Jurnal Materi dan Pembelajaran Fisika Indonesian Journal of Jamu
Edi Santosa
Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (IPB University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Physics Social Sciences Veterinary Other

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Assessment of biodiversity risks in urban agriculture: Case of Jakarta, Indonesia Fetty Dwi Rahmayanti; Andi Gunawan; Anas Miftah Fauzi; Edi Santosa
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 53 No. 2 (2025): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/jai.v53i2.66297

Abstract

Urban agriculture is a permanent and dynamic part of urban socio-economic and ecological systems. It uses typical urban resources, competes with other urban functions for land and water, is influenced by urban policies and plans, and contributes to urban social and economic development. To assess agricultural sustainability and predict future food security, it is essential to understand the relationship between farming systems and biodiversity. The research aimed to assess biodiversity risk in urban agriculture. This research employed a mixed-methods approach, combining quantitative and qualitative methods, and incorporated a field survey that involved collecting data from research and literature reviews. The field survey involved collecting data from research questionnaires distributed to respondents to determine their perceptions of biodiversity risks to flora and fauna resulting from urban agricultural activities. The results of the study showed that the p-value was greater than the alpha level (α = 0.05), indicating that urban agriculture in East Jakarta does not significantly affect biodiversity risks of flora and fauna. Keywords: agripolitan; city greenery; conservation; East Jakarta; food security
Simple Measurements of Refractive Index of Glycerine using a Spherical Flask Cahyono, Monica Adelia Kintan; Santosa, Edi
Jurnal Materi dan Pembelajaran Fisika Vol 15, No 1 (2025): Jurnal Materi dan Pembelajaran Fisika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jmpf.v15i1.100923

Abstract

The refractive index of glycerine is measured using a spherical lens. This setup functions as a convex lens. Focal length measurements are carried out using two standard methods, namely the direct method and the lens formula method. First, the focal length is determined directly using parallel rays. Second, we measure the object distance and the image distance. From the obtained focal length, the refractive index of the glycerine is then calculated. Using various concentrations, we found that the refractive index of glycerine depends linearly on its concentration linearly. The refractive index of pure water (0% glycerine) and glycerineat concentrations of 60%, 80%, and 100% are found to be (1.33±0.02), (1.42±0.03), (1.46±0.03), (1.49±0.04), respectively. This experiment uses simple equipment available in most laboratories and can be carried out in schools.
Effect of watering on incidence of self-pruning in lime (Citrus × aurantiifolia (Christm.) Swingle) Elda Kristiani Paisey; Edi Santosa; Ani Kurniawati; Supijatno Supijatno; Marlin Sefrila; Besse Amriati; Anjeli Sulistianti Paisey; Hayu Siwi Pribadi; Darius Dare; Nurlailah Nurlailah; Zarima Wibawati
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 54 No. 1 (2026): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/jai.v54i1.68942

Abstract

The process of self-pruning represents a form of self-destruction among shaded or diseased branches, which has the potential to deplete the resources of the tree. This phenomenon is also observed in natural ecosystems. The self-pruning mechanism can be exploited to reduce the cost of pruning in cultivated plants, such as lime trees. The objective of this study was to ascertain the mechanisms that occur during self-pruning in response to drought and flooding induction. The experiment was arranged in a randomized complete block design (RCBD) with three replications. Each replication contained three plants, giving a total of 45 plants. Samples were taken from three plants per treatment. The treatments comprised irrigation at field capacity, irrigation every day, irrigation every three days, irrigation every five days, and irrigation every seven days, and the data were analyzed using the Duncan Multiple Range Test at the 95% level. The secondary, tertiary, and quaternary branches that experienced self-pruning due to drought and flooding treatments had average lengths ranging from 3.06 to 9.53 cm and diameters between 0.50 and 1.84 mm. The physiological responses, including the photosynthetic rate, showed that both drought and inundation treatments led to a decrease in stomatal conductance and transpiration. Furthermore, the concentrations of ethylene, abscisic acid, and proline increased markedly after seven months of treatment-induced self-pruning. Keywords: abscisic acid; ethylene; proline
Optimalisasi Budidaya Talas Pratama 3 melalui Demonstration Plot untuk Peningkatan Produktivitas Petani di Kelurahan Situ Gede, Kota Bogor Sherly Eka Maulidiya; Edi Santosa; Handian Purwawangsa; Mohammad Iqbal Irfany; Danang Aria Nugroho; Ranti Wiliasih; Ahmad Fadli Alghifari; Muhammad Afif Fathin Ridho; Desvita Resti Faniqotuni'mah
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 12 No. 2 (2026): Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.12.2.199-209

Abstract

The Pratama 3 Taro cultivation optimization program was implemented through a demonstration plot (demplot) approach as a technology-transfer method to increase farmers' capacity in Situ Gede Village, Bogor City. This activity involved 16 farmers from the Saluyu Adult Farmers Group (KTD) and the Geulis Women Farmers Group (KWT) as partners. The implementation method consisted of three main stages, namely land preparation and cultivation demonstration plots, Good Agricultural Practices (GAP) training, and periodic mentoring and monitoring. Data were collected through observation, interviews, and surveys using questionnaires, then analyzed descriptively and quantitatively. The results of the demonstration plot implementation showed an increase in vegetative growth of taro plants up to the 14th WAP phase with an average tuber weight of 1,335 g and productivity reaching 26.7 tons per hectare. Regarding changes in farmer capacity, 93.75% of participants reported increased knowledge, 62.5% reported changes in cultivation techniques, and 68.75% reported increased harvest yields of ≥30%. In addition, product prices increased, and market access improved after the program intervention. These findings indicate that demonstration plots as a participatory learning medium are effective in encouraging technology adoption and increasing the productivity of Talas Pratama 3. This program has the potential to be implemented more widely with further support for post-harvest and marketing aspects to enhance farmers' economic sustainability.
Co-Authors , Hariyadi , Kholidi , Krisantini , Susilawati . SUBOWO Abdoellah, Soetanto Abdul Harris Burhan Abdul Roni Angkat Achmad Taufiq Ade Wachjar Ade Wahjar Aditama, Ravi Aditya Wira Tantra Adolf P. Lonto Adolf Pieter Lontoh, Adolf Pieter Agik Suprayogi Agus Buono Agus Sufyan Ahmad Fadli Alghifari AHMAD JUNAEDI Ahmad Zamzami Akmal, Ajmir Alghifari, Ahmad Fadli Almas Lathuf Assyura Amirah, Nurul Anas Dinnurrohman Susila Anas Dinurrohman Susila Anas Miftah Fauzi Anas Miftah Fauzi Andi Gunawan Andi Gunawan Andreas Kefi ANDRIA AGUSTA Ani Kurniawati Anjeli Sulistianti Paisey Anung Wahyudi Arisa Noguchi, Arisa Arjuna, Rizka Tri Aryani, Nabila Syarfina Atang Sutandi Azwar, Rani Azkiyah Bambang S. Purwoko Bambang Sapta Purwoko Besse Amriati Cahyaningrum, Laeli Dyah Tantri Cahyono, Monica Adelia Kintan Candra Budiman Chairunnisak, Chairunnisak Chusyairi, Ahmad Danang Aria Nugroho Daniel Happy Putra Darius Dare Darmawansyah Darmawansyah Deden Derajat Matra Delvi Maretta Desta Wirnas Desvita Resti Faniqotuni'mah Dhika Prita Hapsari Diaguna, Ridwan Didy Sopandie DINY DINARTY, DINY Dulbari Dulbari, Dulbari Dwi Guntoro Dwi Sutari Laksono Efendi, Darda Eka Maulidiya, Sherly Eko Sulistyono Elda Kristiani Paisey Elly Kristiati Agustin, Elly Kristiati Elsanti, . Endah Retno Palupi Endang Gunawan Eny Widajati Fajar Delli Wihartiko Faqih Udin Fatah, Muhammad Fatawa, Muhammad Ihsan Fatkhunnisa, Ratu Febrianto, Miftakhur Rizki Hidayat Feni Shintarika Fetty Dwi Rahmayanti Fifin Nashirotun Nisya Gani Tarigan, Abdul Gani Gatot Pramuhadi Gerson Hans Maure Ginanjar Pramudya Sakti Gunar Widiyanto, Gunar HAJRIAL ASWIDINNOOR Handian Purwawangsa Haniefan, Nafarain Agung Haq, Awfil Hariyadi Hayu Siwi Pribadi Herdhata Agusta Herman Wafom Tubur I Wayan Astika Imam Fauzi Fauzi Tanjung Imdad Julian Purwanto Ince Raden Intan Dewi Puspitasari Irfan Rabani Irfanda, Munandar Is Helianti Iswandi Anas Iswandi Anas Jaenudin Kartahadimaja Juang Gema Kartika Kailola, Joan Joulanda Grace Kanny, Putri Irene Karmanah, Karmanah Kazi Liaquat Hossain Ken Takahata, Ken Khamdanah, . Krisantini Kurniati Kurniati kuswanto, Lianah Lian, Chun Lan Limin, Atfritedy Luh Putu Ratna Sundari Lutfy Ditya Cahyanti, Lutfy Ditya M A Chozin Machfud Machfud MAGHFIRAH Marchella Putriantari Marlin Sefrila Martina, Ajeng Aulia Martini Aji Maryarti Sari Maryati Sari Matra, Deden Drajat Md. Abdul Wadud Md. Abul Kashem Md. Shajahan Ali Mega Fatimah Rosana Memen Surahman Mochamad Hasjim Bintoro Mohamad Rahmad Suhartanto Mohammad Abdul Wadud Mohammad Iqbal Irfany Muhamad Zainul Fattah Muhammad Afif Fathin Ridho Muhammad Raihan Ferdiansyah Muhammad Thamrin Munandar Irfanda Munif Ghulamahdi Nadia Dwi Kartika Nakano, Hajime Nani Yulianti Nareswari, Aptika Hana Prastiwi Ni Made Armini Wiendi Nina Ariesta Nindita, Anggi Nobuo Sugiyama Nobuo Sugiyama Nobuo Sugiyama Nurlailah Nurlailah Nurlela, Nurlela Nurul Hidayah NURUL HIDAYAH Nurul Khumaida Oktaviona, Winda Okti Syah Isyani Permatasari Paisey, Elda Kristiani Panca Dewi Manu Hara Karti Prathama, Mathias Purwanto, Imdad Julian Purwono Purwono Purwono PUTRI, AYU DIAH PUTU LAKSMI Putriantari, Marcella Rafi Fauzan Rahman, Rahayu Safitri Rahmat Budiarto Rahmawati, Nur Fajri Rahmayanti, Fetty Dwi Ramadhani, Detri Ardi Ramadhani, Rezky Puryan Ranti Wiliasih Rd. Selvy Handayani Rianto, Dwi Fajar Rinaldi Sjahril, Rinaldi Riska sukmawati Ritonga, Arya Widura Rizka Tri Arjuna Roedhy Poerwanto Roelly Ainul Yaqin Rofiq, Muhamad Abdul Rohman, Fadil Rosdiana, Siska Rosyad, Astyani Samudra, Ferdianto Budi Sandra Arifin Aziz Santun R.P. Sitorus Saputro, Imron Gempur Sari, and Maryati Sembiring, Wildan Kahfi Shafira Pratiwi Sherly Eka Maulidiya Sigit Pramono Sinaga, Falencia Siska Rosdiana Siti Halimah Slamet Susanto Sobir Sobir SOEKISMAN TJITROSEMITO Sofyan Zaman Sri Nurdiati Sri Suryo Sukoraharjo Sri Wahjuni Stefano, Indra Mario SUBOWO GITOSUWONDO Sudoyo, Bobot Sufiatul Maryana Sugiyanta Sugiyanta Sulassih, . Sulistyono, dan Eko Supijatno Supijatno Supijatno Surono, . Suwandi, Syifa Damaianti Suwarto Suwarto Syaiful Anwar Tantra, Aditya Wira Thifany, Ariny Jihan Tjahja Muhandri Ulfha Junita Ulinnuha, Zulfa Utami Prawati Wijaya, Aldi Kamal Winarso D. Widodo Yoko Mine Yoko Mine Yoko Mine Yonny Koesmaryono Yunus, Ismadi Zarima Wibawati