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All Journal Jurnal Ilmiah Membangun Desa dan Pertanian Agroista: Jurnal Agroteknologi
Julio Eiffelt Rossafelt Rumbiak
Universitas Sultan Ageng Tirtayasa
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science Social Sciences Veterinary

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Sifat Kimia Tanah pada Budidaya Talas Beneng (Xanthosoma undipes K.Koch) di Berbagai Ketinggian Aghnia Sholihat; Nuniek Hermita; Julio Eiffelt Rossafelt Rumbiak; Dewi Firnia
Jurnal Ilmiah Membangun Desa dan Pertanian Vol. 9 No. 5 (2024)
Publisher : Department of Agribusiness, Halu Oleo University Jointly with Perhimpunan Ekonomi Pertanian Indonesia - Indonesian Society of Agricultural Economics (PERHEPI/ISAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37149/jimdp.v9i5.1553

Abstract

Soil is important in agriculture because of its chemical properties, which can affect plant growth. Understanding soil chemical characteristics at various elevations is expected to help identify the optimal elevation for Beneng taro cultivation. This study aims to identify the chemical properties of soil used for Beneng taro cultivation at different elevations to determine optimal conditions for plant productivity. The research uses a descriptive quantitative method conducted in three villages at varying elevations: Talaga Warna Village in Pabuaran District (343 meters above sea level), Juhut Village in Karangtanjung District (±615 meters above sea level), and Kaduengang Village in Cadasari District (±761 meters above sea level). The study was carried out from August to October 2024. Sampling was conducted using a composite method with a diagonal sampling technique. The soil chemical parameters analyzed include pH (measured by penetration method), C-Organic (Walkley and Black method), Total Nitrogen (Kjeldahl method), Total Phosphorus and Total Potassium (25% HCl extraction method), and Cation Exchange Capacity (CEC) using the NH4OAc method at pH 7. Soil chemical analysis was performed at the Agroecotechnology Soil Laboratory, Sultan Ageng Tirtayasa University, and Laboratory IPB. Research findings will be presented in tables and maps using ArcGIS software. Results indicate that soil chemical properties for Beneng taro cultivation vary across elevations. The soil at different elevations is generally acidic, with very low levels of Total Nitrogen, Total Phosphorus, and Total Potassium, as well as low C-Organic content, while soil CEC is categorized as moderate. This study provides a scientific basis for enhancing Beneng taro production by considering optimal elevation and suitable soil conditions.
Uji Efektivitas Konsentrasi dan Lama Perendaman Larutan KNO₃ terhadap Daya Perkecambahan dan Viabilitas Benih Padi (Oryza sativa L.) Kedaluwarsa Varietas INPARI-32 Amara Anggelliya; Putra Utama; Julio Eiffelt Rossafelt Rumbiak; Zahratul Millah
AGROISTA : Jurnal Agroteknologi Vol. 10 No. 1 (2026): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v10i1.2530

Abstract

In rice, germination and early seedling growth are significantly influenced by seed viability. Viability is decreased by seed deterioration during storage, especially in older seeds. The purpose of this study was to ascertain how soaking time and potassium nitrate (KNO₃) concentration affected the germination and viability of old rice seeds (Oryza sativa L.) of the Inpari-32 variety. KNO₃ concentrations (0%, 1%, 2%, and 3%) and soaking times (24, 30, and 36 hours) were the two elements that determined the experiment's Completely Randomised Design (CRD). The percentage of normal seedlings, aberrant seedlings, vigour index, germination percentage, and non-germinated seeds were among the parameters noted. The results indicated that KNO₃ concentration significantly increased germination, with the highest percentage of normal seedlings obtained at 3% KNO₃ showing an increase of (48.33%) compared to the control and followed by 2% KNO₃ with an increase of (47.77%), compared to the control (32.22%). The length of the soaking period had a significantly significant impact; 36 hours produced the highest germination percentage (59.58%), followed by 30 hours (47.30%) and 24 hours (15.90%). There was no discernible relationship between the amount of KNO₃ and the length of soaking. While longer soaking times improved water imbibition and triggered physiological processes, the administration of KNO₃ increased seed metabolic activity. In conclusion, old rice seeds' viability and vigour were successfully increased by KNO₃ concentrations of 2-3% and a 36-hour soaking period; however, the improvement was insufficient to reach a high vigour category.
Co-Authors Aghnia Sholihat Amara Anggelliya Dewi Firnia Nuniek Hermita Putra Utama Zahratul Millah