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All Journal Jurnal Ilmu Agroteknologi Indonesia (JIGRONA)
Gulo, Desti Kurniawan
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Immunology & microbiology

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Identifikasi Kesesuaian Lahan Budidaya Tanaman Kelapa Sawit  (Elaeis Guineensis Jacq.) Di Gunung Pamela, Serdang Bedagai, Provinsi Sumatera Utara Gulo, Desti Kurniawan
Jurnal Ilmu Agroteknologi Indonesia Vol. 2 No. 1 (2026): JIRGONA - Januari
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jigrona.v2i1.1329

Abstract

Land suitability evaluation is a crucial stage in sustainable oil palm cultivation development. This study aimed to identify and evaluate land suitability for oil palm (Elaeis guineensis Jacq.) cultivation in Gunung Pamela, Serdang Bedagai Regency, North Sumatra Province. The research was conducted from September to November 2024 using a survey method with a matching approach between land characteristics from laboratory analysis and field observations against oil palm growth requirements based on FAO (1976) criteria. Parameters analyzed included climatic conditions (rainfall, rainy days, temperature), soil physical properties (texture, drainage, effective depth, slope), and soil chemical properties (pH, C-organic, clay CEC, base saturation). Results showed that annual rainfall reached 3,143.8 mm with a water surplus of 1,783.4 mm, 142 rainy days/year, and average temperature of 26.5°C. Soil characteristics indicated clay loam texture, pH 4.5-5.0, C-organic 0.78%, clay CEC 15.8 cmol/kg, base saturation 18.5%, slope 8-16%, and effective depth 75-100 cm. Actual land suitability was classified as S2 (Suitable) with main limiting factors being low pH (nr), slightly impeded drainage (oa), and slope gradient (eh). Potential land suitability can be upgraded to S1 (Highly Suitable) through acid soil amelioration with liming, drainage system improvement, and organic matter addition. This research provides a scientific basis for sustainable land management and oil palm productivity optimization in Gunung Pamela.
Pengaruh Ketebalan Mulsa Organik Terhadap Pertumbuhan Dan Hasil Jagung Manis (Zea Mays Saccharata Sturt.) Gulo, Desti Kurniawan; Zebua, Helmin Parida; Laia, Dian Agung Sanora; Lase, Elikana
Jurnal Ilmu Agroteknologi Indonesia Vol. 2 No. 1 (2026): JIRGONA - Januari
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jigrona.v2i1.1330

Abstract

Sweet corn (Zea mays saccharata Sturt.) is a horticultural commodity with high economic value; however, its productivity remains relatively low due to environmental stress and weed competition. Organic mulch is an environmentally friendly technology that can enhance crop productivity, yet the optimal mulch thickness for sweet corn cultivation has not been well established. This study aimed to evaluate the effect of organic mulch thickness on the growth and yield of sweet corn and to determine the optimal mulch thickness. The experiment was conducted using a non-factorial Randomized Complete Block Design (RCBD) with four levels of rice straw mulch thickness: M0 (no mulch, 0 cm), M1 (3 cm), M2 (6 cm), and M3 (9 cm). Each treatment was replicated six times. The observed parameters included plant height, number of leaves, stem diameter, husked ear weight, unhusked ear weight, and number of kernel rows per ear. The results showed that organic mulch thickness significantly affected all observed parameters. Application of rice straw mulch at a thickness of 6–9 cm effectively improved the growth and yield of sweet corn, with 9 cm being optimal for ear weight and 6 cm being optimal for the number of kernel rows.
Co-Authors Helmin Parida Zebua Laia, Dian Agung Sanora Lase, Elikana