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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia SOCA: Jurnal Sosial Ekonomi Pertanian JOURNAL ON SOCIAL ECONOMIC OF AGRICULTURE AND AGRIBUSINESS Agrovigor: Jurnal Agroekoteknologi Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) AGRIVITA, Journal of Agricultural Science Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) agriTECH Jurnal Agro Jurnal Penelitian Pertanian Terapan Journal of Applied Geospatial Information Journal of Regional and Rural Development Planning Journal of Tropical Crop Science AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian HUKUMAH: Jurnal Hukum Islam Jurnal Agrium Jurnal Pusat Inovasi Masyarakat Journal of Agrosociology and Sustainability
Iskandar Lubis
Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Medicine & Pharmacology Physics Social Sciences Other

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Keparahan Penyakit Tungro dan Preferensi Wereng Hijau terhadap Berbagai Dosis Pemupukan Nitrogen Achmad Gunawan; Purwono Purwono; Iskandar Lubis; I Nyoman Widiarta
Jurnal Ilmu Pertanian Indonesia Vol. 29 No. 1 (2024): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.29.1.111

Abstract

The severity of disease symptoms is affected by triangular interactions between pathogens, hosts, and the environment. This study aims to describe the severity of tungro disease symptoms concerning the resistance of rice varieties and various fertilization rates. The research used the potting method in the Center for Rice Research, Sukamandi greenhouse. The experiment was designed using a Randomized Design, with 3 varieties: Ciherang (sensitive), IR 64 (green leafhopper resistance), and Inpari 36 Lanrang (virus resistance) as the main plot, and 4 levels of combination fertilization: (1) compound fertilizer + without urea; (2) compound fertilizer and urea 250 kg/ha; (3) compound fertilizer and urea 350 kg/ha; and (4) compound fertilizer and urea 500 kg/ha, as subplots. The data was processed using Anova and Duncan's multiple distance test. The results showed that rice variety significantly affected vector preference and the severity of tungro symptoms. The dose of nitrogen fertilization does not give different results to the preferences of insects and the severity of tungro in the greenhouse. There is no interaction between the variety and the dose of fertilizing. Resistant varieties are less preferred by green leafhoppers than the sensitive varieties. Keywords: antixenosis, Nephotettix virescens nitrogen fertilizer, preference
Penetuan dosis pupuk nitrogen, fosfor, dan kalium optimum untuk padi sawah varietas bioemas agritan Yati Astuti; Iskandar Lubis; Ahmad Junaedi
Jurnal AGRO Vol 10, No 1 (2023)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/23187

Abstract

Fertilizer requirements for each rice variety are different from other varieties. Research on the optimum dosage of fertilization on new superior varieties is needed to obtain optimum growth and yield. This study aims to determine the optimum dosage of N, P, and K fertilizer for the growth and productivity of lowland rice of the Bioemas Agritan variety. The research was conducted at Banten Assessment Institute for Agricultural Technology, from February 2022 to June 2022 on soils with very low C-organic and total N conditions. The study consisted of three parallel experiments, namely the N, and P, K fertilization experiment using a single factor randomized  complete block design which was repeated three times. Fertilizer dosages consist of five levels, namely 0, 50, 100, 150, and 200% of the reference dosage. Determination of the optimum dosage based on the maximum value of the relative yield quadratic equation. The optimum fertilizer dosage for the lowland rice variety Bioemas Agritan is 140,93% of the reference dosage or equivalent to 422,79 kg ha-1 urea, while the optimum dosage of P2O5 and K2O fertilizer cannot be determined.ABSTRAK Kebutuhan pupuk setiap varietas padi berbeda antara varietas satu dengan varietas lainnya. Penelitian dosis optimum pemupukan pada varietas unggul baru diperlukan untuk mendapatkan pertumbuhan dan hasil yang optimum. Penelitian ini bertujuan untuk menentukan dosis optimum pupuk N, P, K untuk pertumbuhan dan produktivitas padi sawah varietas Bioemas Agritan. Penelitian dilaksanakan di BPTP Banten, pada bulan Februari 2022 sampai dengan Juni 2022 pada tanah dengan kondisi C-organik dan N total sangat rendah. Penelitian terdiri atas tiga percobaan paralel yaitu percobaan pemupukan N, P, K menggunakan rancangan kelompok lengkap teracak faktor tunggal yang diulang sebanyak tiga kali. Dosis pupuk terdiri atas lima taraf yaitu 0, 50, 100, 150, dan 200 % dari dosis acuan. Penentuan dosis optimum berdasarkan nilai maksimum dari persamaan kuadratik hasil relatif. Dosis pupuk optimum untuk padi sawah varietas Bioemas Agritan adalah 140,93% dari dosis acuan atau setara dengan 422,79 kg ha-1 urea, sedangkan dosis optimum pupuk P2O5 dan K2Otidak dapat ditentukan.
Pengaruh pemupukan P dan populasi jagung dengan tumpang sari kedelai pada budidaya jenuh air di lahan pasang surut Faadhilah, Fajar; Lubis, Iskandar; Ghulamahdi, Munif
Journal of Agrosociology and Sustainability Vol. 1 No. 2: (January) 2024
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/jassu.v1i2.2024.309

Abstract

Soybean and corn are the main food crops in Indonesia after rice. Currently to fill the needs of national soybeans and corn obtained through imports. That was due to the low productivity of soybeasn and corn in Indonesia compared to other countries like as the United States and China. Iimproving the productivity of corn and soybean is by regulating plant population and fertilizing. The purpose of this research was to determine the effect of P fertilizing and corn population on soybean and corn intercropping in tidal swamps. This research was in March to August 2019 in Karyabakti, Rantau Rasau District, Tanjung Jabung Timur Regency, Jambi Province. The tidal swamps type used was type B. The study was conducted using two factors i.e P fertilization (0 kg P2O5 ha-1, 46 kg P2O5 ha-1, 92 kg P2O5 ha-1, 138 kg P2O5 ha-1) and population maize (50,000, 63,000 and 73,000 plants ha-1). The intercropping system showed the highest results in a population of 63,000 maize ha-1 plants with a fertilizer dosage of  P 46 kg P2O5 ha-1. Land equality ratio highest 2.3 showed that intercropping systems were 130% more effective than monoculture planting.
KERAGAAN MORFO-FISIOLOGI SERTA KOMPONEN HASIL DAN HASIL GENOTIPE PADI PADA METODE BUDIDAYA TANAM BENIH LANGSUNG LAHAN BASAH Rifqi Fauzi, Ahmad; Junaedi, Ahmad; Lubis, Iskandar; Ghulamhdi, Munif; Aswidinnoor, Hajrial
Jurnal Penelitian Pertanian Terapan Vol 24 No 1 (2024)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v24i1.2741

Abstract

The direct seeding of rice (DSR) system has been widely practiced in various Asian countries because it is considered more efficient in water and labor and provides better benefits than transplanting systems. However, improvements in the management of this system practice are still needed, especially in cropping patterns and the use of appropriate varieties. This study examines the physiological characteristics, yield components, and yields of rice genotypes in transplanting and DSR systems. This research was carried out in the field with transplanting and DSR cultivation systems (drill and broadcast sowing) and used four superior lines and one national variety. A total of 25 treatment combinations were designed using a split-plot randomized complete block design (Split plot-RCBD) with three replications for each treatment. The results showed that rice grown with DSR had no different level of greenery and photosynthesis rate than rice in transplanting cultivation, but produced lower panicle length, the number of grains per panicle, the number of filled grains, and faster flowering time. Genotype IPB193-F-17-2-3 produced the highest productivity in wet DSR (drill and broadcast sowing) and dry DSR (drill sowing). Genotype IPB193-F-38-2-1 had the highest productivity in transplanting techniques and dry DSR (broadcast method). The productivity of the Ciherang variety in the DSR system (drill method) was not different from the transplanting system. This finding indicates that the direct seeding system using the drill method is promising for further development.
Kajian Agribisnis Komoditas Unggulan Tanaman Pangan di Kabupaten Lima Puluh Kota Marlinda, Barirah; Lubis, Iskandar; Sitorus, Santun R.P
Journal of Regional and Rural Development Planning (Jurnal Perencanaan Pembangunan Wilayah dan Perdesaan) Vol. 7 No. 3 (2023): Journal of Regional and Rural Development Planning (Jurnal Perencanaan Pembangu
Publisher : P4W IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jp2wd.2023.7.3.310-325

Abstract

Superior agricultural commodities, especially food crops, are one of the development potency in Lima Puluh Kota Regency, West Sumatra Province. Therefore, it is necessary to study the superior commodities by considering agribusiness systems from upstream to downstream in order to increase regional competitiveness and people's welfare. This study was conducted to identify superior food crops and examine the agribusiness system of superior food crops in Lima Puluh Kota Regency. Based on the analysis of superior commodities using Location Quotient (LQ) and Shift Share Analysis (SSA), superior food crop commodities are rice, corn, peanut, and cassava. These superior commodities are spread over 8 districts, namely Mungka, Payakumbuh, Harau (rice), Guguak, Luak, Lareh Sago Halaban (corn), Suliki (peanuts), and Akabiluru (cassava). The analysis of the agribusiness system describes the conditions of each agribusiness sub-system of the superior food crop commodities starting from the upstream (on-farm) downstream (off-farm). The agribusiness system for superior food crop commodities in Lima Puluh Kota Regency has not run well, integrated and synergistic, especially in the downstream agribusiness subsystem.
Pengaruh Dosis Pupuk Fosfor dan Kalium terhadap Produksi dan Pertumbuhan Kedelai (Glycine max (L.) Merrill) Harahap, Ade Tika Sari; Lubis, Iskandar; Palupi, Endah Retno
Buletin Agrohorti Vol. 12 No. 3 (2024): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v12i3.51660

Abstract

Kedelai merupakan salah satu komoditas prioritas yang diupayakan untuk ditingkatkan produksinya guna mengurangi impor. Upaya peningkatan produksi nasional kedelai di antaranya perbaikan teknik budi daya melalui pengaturan pupuk. Pupuk fosfor (P) dan kalium (K) yang merupakan pupuk dasar yang dibutuhkan dalam budi daya kedelai. Penelitian ini bertujuan mendapatkan informasi mengenai pengaruh dosis pupuk P dan K terhadap pertumbuhan dan produksi kedelai. Penelitian dilakukan di Kebun Percobaan IPB Sawah Baru dari bulan September hingga Desember 2021. Percobaan menggunakan rancangan kelompok lengkap teracak (RKLT) dengan dua faktor percobaan, yakni dosis pupuk P (0, 50, 100, dan 150 kg SP-36 ha- 1) dan dosis pupuk K (0, 100, dan 150 kg KCl ha-1). Varietas yang digunakan adalah Anjasmoro. Hasil penelitian menunjukkan pemberian pupuk P mempercepat umur panen serta menaikkan indeks luas daun, nilai kehijauan daun fase R1, bobot kering tajuk, laju pertumbuhan tanaman fase R5−R8, bobot biji per tanaman, bobot ubinan, dan potensi hasil kedelai. Dosis 150 kg SP-36 ha-1 menghasilkan bobot biji per tanaman, bobot ubinan, dan potensi hasil tertinggi dibanding dosis lainnya. Hasil panen perlakuan pupuk P 100 kg SP-36 ha-1 dan 150 kg SP-36 ha-1 melampaui potensi hasil varietas. Pemupukan K memperpanjang fase pengisian polong (R5) dan meningkatkan tinggi tanaman pada 9 MST, bobot kering tajuk, bobot biji per tanaman, bobot 100 butir, bobot ubinan, dan potensi hasil kedelai. Dosis 150 kg KCl ha-1 menghasilkan komponen produksi kedelai tertinggi dibanding dosis lainnya. Kata kunci: bobot biji, bobot kering tajuk, potensi hasil, umur panen, umur pengisian polong
Observasi Keragaan Ukuran Benih, Endosperma, dan Embrio Genotipe Padi (Oryza sativa L.) Tropis dengan Image Analysis: Observasi Keragaan Ukuran Benih, Endosperma, dan Embrio Genotipe Padi Tropis (Oryza sativa L.) dengan Image Analysis Fauzi, Ahmad Rifqi; Junaedi, Ahmad; Lubis, Iskandar; Ghulamahdi, Munif; Aswidinnoor, Hajrial
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 8 No 2 (2024): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/agrosainstek.v8i2.442

Abstract

Rice is important staple food in the world. One important input in rice production is seed vigor, is determined by seed characteristics such as seed size and shape. The Digital image processing could facilitate observations of seed size faster, large samples, produce accurate, and robust data. However, this study was designed to investigate size of seed, endosperm and embryo of 55 tropical rice genotypes using image analysis and correlation anlysis between characters. A total of 400 seeds, 40 endosperms, and 8 embryos containing each genotype were investigated for their size characteristics. The results of the investigation showed that genotype differences had a significant effect on size of seed, endosperm and embryo. The length of tropical rice seeds is included in the medium-very long seeds and has a significant positive correlation (α <0.01) with the weight of 1000 grain grains, seed area, shape of the seed (length-to-width ratio), and endosperm length. Embryo size characters (length, width, area, and circumference) have a significant positive correlation (α <0.05) with seed area. The results can be considered in the crop improvement of tropical rice plants in the future.
Evaluation Trial of Drought Damage of Rice Based on RGB Aerial Image by UAV Giamerti, Yuti; Darmadi, Didi; Junaedi, Ahmad; Lubis, Iskandar; Sopandie, Didie; Yuanita Meishanti, Ospa Pea; Sari, Kartika; Hongo, Chiharu; Homma, Koki
agriTECH Vol 44, No 4 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.86077

Abstract

Unmanned Aerial Vehicle (UAV) remote sensing is recommended to evaluate damage quickly and quantitatively. Therefore, this study aimed to explore the use of RGB aerial images by UAV for evaluating drought damage of rice through canopy color and coverage. The procedures were conducted in the dry season of 2018 (August – September 2018) at the Balitkabi Experimental field, Muneng, Probolinggo, Indonesia. A split-plot experimental field design was used with 2 factors, namely drought treatments at growth stage (Vegetative/P1, Reproductive/ P2, Generative/P3, and Control/P0), and varieties (Jatiluhur/V1, IPB9G/V2, IPB 3S/V3, Hipa 19/V4, Inpari-17/ V5, Mekongga/V6, Mentik Wangi/V7, Ciherang/V8). Canopy temperature data were then obtained using FLUKE 574 Infrared Thermometer, while images were taken with an RGB camera (Zenmuse X5) attached to Drone DJI Inspire I. The images were taken twice during the treatment (4 DAT and 15 DAT), followed by analysis using QGIS 2.18 and ImageJ. The results showed that RGB aerial images by UAV could be used in agricultural insurance in Indonesia, and similar countries around the world. Although the effect on yield needed to be evaluated, quick assessment by UAV was still an effective tool. In addition, drought damage evaluation through canopy color was better than canopy coverage in terms of analysis. The conversion from RGB to Lab color space increased the determination coefficient in multiple regression of color values against temperature difference (Tc-Ta).
Response of Growth and Yield of "IPB 9G" Rice to The Application of NPK and Biofertilizers Manullang, Frisca Anggriani; Lubis, Iskandar; Munif Ghulamahdi
Journal of Tropical Crop Science Vol. 12 No. 01 (2025): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.12.01.70-76

Abstract

Rice is a staple food crop that is challenging to replace with alternative crops. Strategies that balance high yields with environmental sustainability are crucial to enhance rice production. One such approach is integrating organic, biological, and chemical fertilizers. This study aimed to evaluate the effects of combining these fertilizers on the growth and yield of "IPB 9G" rice. The experiment was conducted at the IPB experimental farm in Cikabayan, Bogor, Indonesia, from March to June 2024, using a randomized complete block design with two factors and three replications. Treatments included two doses of NPK fertilizer (100% and 50% of the recommended dose) and five combinations of organic and biofertilizers: Azotobacter sp., Azotobacter sp. + Pseudomonas sp., humic acid, PGPR (Plant Growth-Promoting Rhizobacteria), and a combination of Azotobacter sp. + Pseudomonas sp. + humic acid + PGPR. Parameters observed included leaf area, root volume, shoot dry weight, and yield components such as the number of panicles, 1000-grain weight, and the number of grains per panicle. The results demonstrated a significant interaction between NPK dosage and organic-biofertilizer combinations on plant growth and yield. Notably, applying 50% of the recommended NPK dose combined with Azotobacter sp. + Pseudomonas sp. produced comparable or superior yields to the full NPK dose. These findings highlight the potential of reducing chemical fertilizer usage by incorporating biofertilizers, offering an environmentally sustainable strategy for rice cultivation.
Agribusiness System Of Pomelo Citrus In Pangkajene And Kepulauan Regency Nur Fa'izah Zainal; Khursatul Munibah; Iskandar Lubis
SOCA: Jurnal Sosial Ekonomi Pertanian Vol 18 No 3 (2024)
Publisher : Program Studi Agribisnis, Fakultas Pertanian, Universitas Udayana Jalan PB.Sudirman Denpasar, Bali, Indonesia. Telp: (0361) 223544 Email: soca@unud.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SOCA.2024.v18.i03.p04

Abstract

Pomelo citrus is a leading commodity in Pangkajene and Kepulauan Regency (Pangkep), yet its production has declined in recent years. The decline in pomelo production and productivity is suspected to be due to an inadequate agribusiness system. This study aims to analyze the agribusiness system in order to enhance the effectiveness of pomelo orchard management. Respondents were selected using purposive sampling, comprising 47 farmers spread across several farmer groups. Interviews were conducted with farmers and buyers, while questionnaires were administered to farmers, collect, and pomelo traders. The analysis included farm business analysis to determine the R/C ratio, marketing margin analysis, and farmer’s share analysis using Microsoft Excel. The results showed that Ma’rang District possesses the most comprehensive subsystems compared to other districts, consisting of input subsystem, production/farming subsystem, agricultural product processing subsystem, marketing subsystem, and support subsystem. The R/C ratio analysis indicates that farming in Ma’rang (1.39), Labakkang (2.47), and Segeri (1.86) remains economically feasible. Five marketing chains were identified, with Marketing Chain 5 (farmer–consumer) being the most efficient, and Marketing Chain 4 (farmer–middleman–trader–consumer) the least profitable. The agribusiness system serves as a guide to enhance the efficiency and effectiveness of government efforts in developing and sustaining pomelo productivity as a flagship commodity in Pangkep Regency.
Co-Authors , Yudiwanti - Suwarno - Suwarno - Triwidiyati . Suwarno Achmad Gunawan Achmad Gunawan Adi, Defiyanto Djami Adinda Soraya Nasution Afifah, Septi Nur Ahmad Ghozi Manshuri Ahmad Ghozi Mansyuri AHMAD JUNAEDI Ahmad Junaidi Ahmad Junaidi Ahmad Rifqi Fauzi Ahmad Zamzami Aidi Noor Ananda Diah Oktaviani Andrea Emma Pravitasari, Andrea Emma Arinta, Kistia Asep Hambali Atmaja, ian Surya Fitra Bagus Arrasyid Bambang Sapta Purwoko Boedi Tjahjono Butar Butar, Dewi Valentina Chiharu Hongo, Chiharu Danner Sagala Darmasandi, Arjuna Puji Dede Kismantoro Deni Suhendar Desta Wirnas Dewi Valentina Butar Butar Didi Darmadi, Didi Didy Sopandie Eko Sulistyono Endah Retno Palupi Erika Santi Faadhilah, Fajar Fahmi, Muhammad Rasyid Noor Faisal Faisal Faqih Udin Fathnoer, Veronica Firdaus Puja Santana Fitratunnisah Fitriyah Nurul Ghulamhdi, Munif Gunawan, Achmad Gustiningsih, Dini HAJRIAL ASWIDINNOOR Hambali, Asep Harahap, Ade Tika Sari Hidayah , Riska Firotul Higuchi, Hirokazu Hiroshi Ehara Hiroshi Ehara Hiroshi Ehara Homma, and Koki Homma, Koki I Nyoman Widiarta I Nyoman Widiarta Ilham iwan Tona Iswari Saraswati Dewi Jayawarsa, A.A. Ketut Khairil Anwar Khursatul Munibah Kistia Arinta Koki Homma Kondo, Tomohiro Kurniawan, Dede Yudo Luh Made Indah Sri Handari Adiputra Luh Putu Ratna Sundari M A Chozin M A Chozin Maisura Maisura Manullang, Frisca Anggriani Marlinda, Barirah Maudy Susanti Maulana, Arlingga Ichwan Megayani Sri Rahayu Miftakhul Bakhrir Rozaq Khamid Muhamad Ahmad Chozin Muhamad Syukur Muhammad Firdaus Lubis Muhammad Firdaus Lubis Muhammad Hasjim Bintoro Djoefrie Hasjim Bintoro Djoefrie Mujahid, Sitta Mujio Munandar, Arief Munawaroh, Laili Munif Ghulamahdi Novita Niken Putri Ulayyah Nur Fa'izah Zainal Ospa Pea Yuanita Meishanti Purwono Purwono Purwono Rakhman Adhiatma Renica Nurhermawati Roedhy Poerwanto Saidah, Faza Yasmin SANTUN R.P SITORUS Septi Nur Afifah Shiraiwa, Tatsuhiko Siti Nurhidayah Siti Ria Chaerunisa Sopandie, Didie Sri Astuti Rais Sri Purwanti Sugiyanta Supijatno Suwarno - Suwarto Suwarto Suwitono, Bayu Tatsuhiko Shiraiwa Titi Candra Sunarti Titiek S. Yuliani TRI KOESOEMANINGTYAS Trikoesoemaningtyas Widiatmaka Willy Bayuardi Suwarno Willy Monika Yohansyah Willy Monika Yohansyah Wira Hadianto, Wira Yamamoto, dan Yoshinori Yartiwi, Yartiwi Yati Astuti Yudi Sastro Yuti Giamerti, Yuti