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All Journal Journal of Educational, Health and Community Psychology Jurnal Dinamika Pengabdian (JDP) Jurnal Penelitian Pendidikan IPA (JPPIPA) Bernas JASc (Journal of Agribusiness Sciences) Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Pertanian Agros JURNAL AGROHITA JURNAL PERTANIAN JCRS (Journal of Community Research and Service) Agroteknika Jurnal Ilmiah Padma Sri Kreshna Jurnal Agrium Best Journal (Biology Education, Sains and Technology) Jurnal Agro Estate Journal of Agriculture (JoA) Jurnal Abdimas Maduma Jurnal Ilmiah Agritas Jurnal Agro Estate OKTAL : Jurnal Ilmu Komputer dan Sains Jurnal Agro Fabrica IRA Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat dan Riset Pendidikan Jurnal Pertanian Agros
Hari Gunawan
Institut Teknologi Sawit Indonesia
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Veterinary Other

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Journal : Jurnal Pertanian Agros

 1 
PENGARUH INTESITAS CAHAYA TERHADAP TANAMAN KELAPA SAWIT DI FASE PEMBIBITAN (Elaeis guineensis jacq) Kani, Almunazza; Rama Adrian; Celine Louise Adelia Purba; Hari Gunawan; Givin Glenasfi Sinulingga; Julfan Efendi
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.v28i1.161

Abstract

This study aims to evaluate the effect of light intensity and fertilization on the height and stem diameter growth of oil palm seedlings (Elaeis guineensis Jacq) at 16 weeks of age. The study was conducted under controlled conditions with varying light intensities and types of fertilizer applied to the seedlings. The results showed that an increase in light intensity significantly increased seedling height, with optimal growth recorded at an intensity of 2000 lux, reaching 19.15 cm. In addition, fertilization also had a positive effect on stem diameter, where 15 g of fertilizer produced a maximum diameter of 0.50 cm. Statistical analysis using the BNT test showed significant differences between treatments at a 5% rate. These findings indicate that a combination of good lighting and proper fertilization is very important to support oil palm seedling growth, providing guidance for better cultivation practices in the field.
HUBUNGAN INDEKS LUAS DAUN TERHADAP EFEKTIVITAS FOTOSINTSIS Oktafian Sihaloho; Sinaga , Ferdi; Beriasi Fransisko Sinaga; Ihsan Taulani; Diky Anggara; Hari Gunawan
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.v28i1.166

Abstract

Leaf Area Index (LAI) is a key biophysical indicator that reflects canopy structure and its capacity to intercept solar radiation, thereby influencing photosynthetic performance. This study aims to examine the relationship between Leaf Area Index and photosynthetic effectiveness in plants. A quantitative observational approach was employed by measuring leaf area, plant density, and photosynthetic rate using standard plant physiological methods. The results indicate that an increase in LAI generally enhances photosynthetic effectiveness due to improved light interception and greater chlorophyll availability. However, excessively high LAI leads to self-shading within the canopy, reducing light penetration to lower leaves and ultimately decreasing photosynthetic efficiency. These findings demonstrate that the relationship between LAI and photosynthetic effectiveness is non-linear and characterized by an optimal LAI range that maximizes photosynthetic performance. Understanding this relationship is crucial for optimizing crop management strategies, improving canopy architecture, and increasing plant productivity in a sustainable manner.
Co-Authors Abdi kusuma Abu Yazid, Abu Akbar Syam Ramadhan Akbar, Muhammad Lucky Sohibul Aritonang, Muhammad Iqbal Aulia, Mhd. Iqbal bayu saputra Beriasi Fransisko Sinaga Bobi Agustian Celine Louise Adelia Purba Dedi Andika Dedi Andrial Siregar Dewi Fitriana Dicky Aryandika Diky Anggara Dyo Fauzan Eka Bobby Febrianto Eka Bobby Febrianto, Eka Bobby Eko Susanto Faiq Raihan Zaky Siregar Faishol Jundi Abaidah Fanzani, Kelvin Aditya Givin Glenasfi Sinulingga Giyanto Guntoro Guntoro, Guntoro Hasibuan, Henry Budi Ihsan Taulani Iman Ghozali Inayatul Qur’ani Ingrid Ovie Yosephine Jhon F Parhorasan Jhon F. Parhorasan Juanda, Aulia Julfan Efendi Kani, Almunazza Kusuma, Satria E Kusuma Lubis, Fadli Akbar Lumbanraja, Rafhael Albertus M. Alfarizi M. Farhan Harahap Mahyunis Maisarah Makhrani Sari Ginting Manullang, Raymond Marzuti Isra Megawati Siahaan Megawati Siahaan Meilano, Dimas Muhammad Yusuf Dibisono Muzakki Muzakki, Muzakki Nona Valentine Sirait Nur Hidayah O Y sitompul, Inggrid Oktafian Sihaloho Oloando, Oloando Ovie Yosephine, Ingrid Pada Mulia Raja Pardimin Purjianto Purjianto Putri, Intan Aulia Rafly Fachrezy Rahadi Rahmad Kurniawan Rahmad Ridwan Rama Adrian Rassid Dwi A Matondang Ridho Saputra Rizky Anugerah Rosmayati Rosmayati Sajaratud Dur Sakiah Sakiah Siahaan, Fathir Alif Simanullang, Putra Sakti Simarmata, Alex Paul Hendry Sinaga , Ferdi Sudrajat, Ign Suprih Suparto Wijoyo SUSANAH Syarifah Yusra T. Sabrina Tuty Ningsih Wahyu Setya Ratri Wahyu Setya Ratri, Wahyu Setya Wahyuni, Seri Walmadri, Walmadri WARDATUL HUSNA IRHAM Wike Kusumastuti Winardi, Rafael Remit Yetty Dwi Lestari Zakwan, Zakwan