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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti DIMENSIA: Jurnal Kajian Sosiologi Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Journal of Tropical Crop Science Jurnal Pengabdian Magister Pendidikan IPA Jurnal Biogenerasi Nivedana : Jurnal Komunikasi dan Bahasa Al-Ubudiyah: Jurnal Pendidikan dan Studi Islam Arus Jurnal Sosial dan Humaniora Jurnal Venus Jurnal Agro Estate PORTAL ABDIMAS International Journal of Sustainability in Research (IJSR) Jurnal Pendidikan Guru Madrasah Ibtidaiyah Al-Amin AGRARIS: Journal of Agribusiness and Rural Development Research Journal of Management, Economic, and Financial Journal of Multidisciplinary Inquiry in Science, Technology and Educational Research The Indonesian Journal of Computer Science LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Hariyadi
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Journal : Journal of Tropical Crop Science

 1 
Evaluating the Efficiency of Metsulfuron-Methyl: The Role of Rice Cultivation Practices in Controlling Monochoria vaginalis Kansa Dianti Putri; Dwi Guntoro; Sintho Wahyuning Ardie; Hariyadi
Journal of Tropical Crop Science Vol. 11 No. 02 (2024): 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.11.02.175-183

Abstract

Monochoria vaginalis is an invasive weed that thrives in rice paddies across Indonesia. Herbicide control is challenging since Monochoria vaginalis is known to be sulfonylurea-resistant in Indonesian rice fields. This weed is highly competitive, with a rapid growth pattern that may diminish rice production. Metsulfuron-methyl, a widely used herbicide, can potentially eliminate sensitive weeds at low dosage levels. This study aimed to identify the optimal dosage of metsulfuron-methyl for controlling Monochoria vaginalis and assess the impact of monoculture rice growing patterns and herbicide application in controlling weeds. The experimental design was a split-plot design with four replications, conducted from June to July 2023 in the Cikabayan Greenhouse at IPB University. The major plot was the Monochoria vaginalis accession: exposed or not exposed to herbicide, consisting of seven sites. The subplot represented the dosage of the active ingredient (a.i.) metsulfuron-methyl: 0, 1, 2, 4, 8, 16, and 32 g.ha-1. In addition to the field experiments, interviews were performed with five farmers from each of the seven Monochoria vaginalis sample accessions to assess rice planting patterns and herbicide usage history. The results showed that metsulfuron-methyl at 1 g.ha-1 reduced weed populations by over 50% in rice accessions Bugel, Palumbonsari, and Ciasem Hilir. Variability in Monochoria vaginalis indicated resistance to metsulfuron-methyl, necessitating greater dosages up to 8 g a.i. per ha-1 for Pasirkaliki and Rancajaya accessions. Our study also indicated that some areas could use lower dosages of herbicides to effectively control Monochoria vaginalis. In contrast to other places that required larger, three-yearly dosages of 100 to 125 g.ha-1, Bugel, Palumbonsari, and Ciasem Hilir used a twice-yearly dosage of 20 g.ha-1. These findings highlight the importance of tailored herbicide application strategies based on local resistance patterns and historical herbicide use to manage Monochoria vaginalis effectively.
Assessment of Nitrogen Volatilization and Greenhouse Gas Emissions from Urea with N-stabilizer in a Productive Oil Palm Plantation (Elaeis guineensis Jacq.) Waraqi, Bismo; Agusta, Herdhata Herdhata; Sudradjat; Hariyadi
Journal of Tropical Crop Science Vol. 11 No. 03 (2024): 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.11.03.260-267

Abstract

Nitrogen fertilization plays a crucial role in supporting plant growth. However, nitrogen in the soil can be lost through rainwater leaching. To address this issue, the concept of fertilizing N-stabilizer-coated urea was proposed. The aim is to reduce nitrogen loss on the field due to vaporization and minimize greenhouse gas (GHG) emissions. The study was conducted to assess the effectiveness of this N-stabilizer-coated urea in reducing nitrogen loss through vaporization, improving GHG emissions, and its impact on plant growth and leaf quality. The research was conducted at IPB-Cargill Jonggol, Bogor, West Java, oil palm education and research station from August 2021 to March 2022. The experimental design employed a completely randomized block design. The fertilizer treatments included four types of nitrogen fertilizers: urea (46% N), coated urea with N-stabilizer (46% N), ZA (21% N), and NPK (15-15-15, 15% N). Additionally, a control treatment without any fertilizer application was included. All treatments were replicated three times. Data analysis was done using the SAS (Statistical Analysis System) 9.0 program. The F-test was conducted, followed by DMRT (Duncan Multiple Range Test) advanced tests at a 5% error level. The results revealed that urea with N-stabilizer fertilization significantly reduced NH3-vaporization by 53% in the first week compared to the application of normal urea. NH3-vaporization level from ZA and NPK was < 1% compared to urea application. Field application of urea with N-stabilizer showed no significant difference in greenhouse gas emission (GHG) compared to the other nitrogen fertilizer types. The GHG values ranged from 7.10 to 7.29 g CO2-e.m-2 per day. The use of N-stabilizer-coated urea could be an effective approach to minimize nitrogen loss through vaporization and reduce greenhouse gas emissions while maintaining comparable results to other nitrogen fertilizer types in terms of GHG emissions on the field.
Growth Promotion of Oil Palm Seedlings (Elaeis guineensis Jacq.) with Slow-Release Fertilizer Application Harahap, Adiansyah; Hariyadi; Junaedi, Ahmad; Prasetyo, Lilik Budi
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.12.01.254-260

Abstract

Oil palm (Elaeis guineensis Jacq.) is a major source of vegetable oil and an important plantation commodity in the Indonesian economy. This study aims to determine the effect of slow-release fertilizer on the growth of oil palm seedlings in the primary nursery and to determine the nutrient status through laboratory analysis and spectroradiometer. The study was conducted at the IPB experimental station in Cikabayan, Dramaga, Bogor. Analysis of soil and leaf samples at the AGH Test Laboratory of the IPB University Department from December 2023 to July 2024. This study used a complete randomized block design with one factor, a nine-level fertilizer dose, and was repeated four times. Each experimental unit has 10 plants, so the total plant population is 360. Slow-release fertilizer can supply nutrients for a period of weeks. This study tested if it would benefit the growth of oil palm seedlings in the primary nursery. A slow-release fertilizer dose of 75% provides the best increase in oil palm seedling growth, whereas, at 50 and 150% doses, it did not increase compared to the control. The agronomic effectiveness value is above 95%.
Co-Authors Abidah, Anisa Shifa Nur ADANG AGUSTIAN Agustini, Endang AHMAD JUNAEDI Ahmad, Gofur Akbar Makkulau Aluh Hanisa N. Anam, M. Khairul Andry Priharta Aqriansyah, M. Yani Bahtiar Usman, Bahtiar Buan Anshari Dedy Kristanto Dinda Martanissa Dwi Guntoro Dwi Ridwana, Salzabillah Eka Maulidiya, Sherly Elis Puspitasari Fadilah, M. Affan Hakim, Muh Yusuf Hansi Effendi Harahap, Adiansyah Hartana Herdhata Agusta Hutauruk, Jeremia Ida Ayu Oka Suwati Sideman Imam Santosa Isa Wahyuni Iswantoni Jannah, Janiatul Jauhar Fajrin, Jauhar Jelita Juwariyah, Aisiatul Kansa Dianti Putri Khairunnisa Fitriani LILIK BUDIPRASETYO Miftahuddin Miftahurridho, Muhammad Toha Muh. Azhari Muhamad Irzan Muhammad Hasjim Bintoro Djoefrie Hasjim Bintoro Djoefrie Mulyadi, Ahmad Iman Muskhir, Mukhlidi Mutahir, Arizal Nadia Dwi Hidayati Nanda Syukerti Nata Waskita, Kuncara Ngudiyono Ni Nyoman Kencanawati Nofrifaldi Nur Halimah Nur Kholis Nurdiansyah, Shaquille Oktavia, Baiq Wulandari Novia Paris J.M. Senda Patriescia Rantika Dini Carollita Kaut Patrisia, Putri Pienyani Rosawanti Puspitasari Putri, Intan Qothrunnada A.S. RAHAYU WIDYASTUTI Rahayu, Mila Rajiv Umardi, Muhammad Raniaziza, Tansya Rianti, Ayu Risa Wentasari Rita Nurmalina Ritonga, Arya Widura Sarfilianty Anggiani, Sarfilianty Saumi Nurfitriana Sidiq, Egi Nur Muhamad Sintho Wahyuning Ardie Sridanti, Irma Lisa Sudradjat Suprihatin Susilowati Tasdik Tona Tri Rini Widyastuti Ufrah ummah, kuntum khaira Utami, Ni Putu Ayu Chandra Waraqi, Bismo Wibowo Windyanesha Paradhita Zadzali, Helmi ⁠Ilham Syahrul Jiwandono