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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Lahan Suboptimal Jurnal Agroekoteknologi Jurnal Pertanian Agros AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Abditani : Jurnal Pengabdian Masyarakat Seminar Nasional Lahan Suboptimal PUBLIKASI PENELITIAN TERAPAN DAN KEBIJAKAN SRIWIJAYA JOURNAL OF ENVIRONMENT BIOVALENTIA: Biological Research Journal Jurnal Ilmiah Ilmu Terapan Universitas Jambi
MUHAMAD UMAR HARUN
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Recovery of Burned Peatland: Revegetation Pattern Planning in Palm Oil Concession, South Sumatra Supriyadi, Supriyadi; Priatna, Satria Jaya; Prayitno, Muhammad Bambang; Harun, Muhammad Umar; Nur Khakim, Mokhamad Yusup; Mohadi, Risfidian
Sriwijaya Journal of Environment Vol 8, No 3 (2023): ENVIRONMENT AND COMMUNITY
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22135/sje.2023.8.3.165-171

Abstract

Peatland ecosystems can recover from fire disasters through ecological succession, revegetation or both. In the context of oil palm plantations, revegetation planning for peatlands aims to restore the hydrological and carbon storage functions of peatlands, as well as to continuously increase the diversity of local vegetation by minimizing engineering activities on the land. This study explores the factors that influence revegetation of peatlands, identifies the distribution of water table levels as the main determinant. The water table levels, which vary from approximately 10 cm to 110 cm, correlate with topographic conditions and significantly impact vegetation survivability. The dominant plant species in the study area is Purun (Eleociharis dulcis), occupying approximately 44.5% of the total area. Other adaptable vegetation types, such as Gelam (Melaleiuca spp.) and Perepat (Combretocarpus rotundiatus), are considered suitable for propagation and planting as part of the peatland revegetation program. The study recommends prioritizing revegetation in areas with low vegetation diversity. Planting in areas with deep groundwater levels (60-80 cm) is recommended during the dry or humid months (June to September), while planting in areas with shallow groundwater levels (0-40 cm) is better conducted in the rainy season (October to December).
Evaluasi Penampilan dan Efek Heterosis Hasil Persilangan Beberapa Aksesi Jarak Pagar (Jatropha curcas L.) Wijaya, Andi; Susantidiana, ,; Harun, Muhamad Umar; Surahman, Memen
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 41 No. 1 (2013): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (272.26 KB) | DOI: 10.24831/jai.v41i1.7082

Abstract

Agronomic performance and heterosis effect of progeny are important criteria for selection of parental hybrid. Theagronomic performance evaluation of Jatropha progeny which was derived from crossing of some Jatropha accessions hasbeen carried out for those goals. The study was conducted at Agro Techno Park, Indralaya South Sumatra. The crossingcombinations were Pidie x Medan, Curup x Lampung, Pidie x Lampung, Lampung x Pidie, Curup x Medan, Indralaya xPontianak, Medan x Palembang, Curup x Pidie, and Jogya x Komering. Oil production, nitrate reductase enzyme activity,leaf chlorophyll content and relative plant growth rate were evaluated. The result showed that the relative plant growth ratecould be used as early detection parameter for yield potential. Progenies of Pontianak x Indralaya, Palembang x Indralayaand Pidie x Lampung were selected as promising hybrids based on high productivity and heterosis effect.Keywords: Jatropha curcas, heterosis, relative plant growth rate, nitrate reductase activity
VARIETAL ADAPTATION AND PERFORMANCE OF SHALLOT UNDER FLOATING CULTIVATION WITH CHICKEN MANURE APPLICATION IN TROPICAL LOWLAND WETLANDS Susilawati, Susilawati; Sodikin, Erizal; Harun, M Umar; Irmawati, Irmawati
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 10 No. 2 (2026): Volume 10, Nomor 2, April 2026
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v10i2.54868

Abstract

Shallot (Allium ascalonicum L.) can be cultivated across a wide range of altitudes, from lowlands to highlands; however, production in Indonesia is predominantly conducted on dryland areas. In response to the national program promoting shallot production expansion outside Java, the development of shallot cultivation in South Sumatra faces challenges due to extensive wetland conditions. Floating cultivation systems offer a potential alternative for optimizing wetland utilization. This study aimed to evaluate the adaptability and performance of several shallot varieties under floating cultivation with different rates of chicken manure application. Plant analysis was carried out at the Plant Physiology Laboratory, and the experiment was carried out from June to August 2024 at the Embung (research reservoir) and Experimental Garden, Faculty of Agriculture, Sriwijaya University, Indralaya. A randomized block design with two factors and three replications was applied. The first factor consisted of four shallot varieties (Tajuk, Bauji, Batu Ijo, and Bima Brebes), while the second factor involved chicken manure rates of 0, 10, 20, and 30 t ha⁻¹. Data were analyzed using RStudio and presented in tables and figures. The results showed that the Bauji variety exhibited superior growth and yield compared to the other varieties. Increasing chicken manure application up to 20 t ha⁻¹ significantly improved shallot growth and productivity. It can be concluded that the Bauji variety, combined with 10 t ha⁻¹ chicken manure, is suitable for cultivation using a floating system in tropical wetlands.
Pengaruh Kombinasi Pupuk Organik dan Hayati Terhadap Pertumbuhan dan Produksi Galur Jagung (Zea mays. L) Hasil Seleksi Efisien hara Pada Lahan Kering Marginal Yopie Moelyohadi; M. Umar Harun; Munandar Munandar; Renih Hayati; Nuni Gofar
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 2 (2013)
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.2.2.2013.50

Abstract

This study aimed to study the growth and yield of maize crop nutrient  efficient  selection against  the  combination of different types of organic fertilizers and bio-fertilizers at low dose levels of chemical fertilizer on marginal dry land for the development of technological innovation fertilization on maize crops to reduce the use of chemical fertilizer on marginal dry land. This study was conducted in the field trials of Agro Techno Park (ATP), the Ministry of Research and Technology, South Sumatra from  January  to May  2012.   The experimental design used was SplitPlotdesign with three replications.   . The main plot treatment was dose levels of chemical fertilizer consists of : P1 = 50 % standard dose of ATP ( 200 kg urea , 50 kg SP36 and 25 kg KCl/ha ) and P2 = 25 % standard dose of ATP ( 100 kg urea , 25 kg SP36 KCl and 1.25 kg/ha) . treatment subplot , is the combined delivery of this type of organic fertilizer + biofertilizer types , comprising : KHO = control ( without organic fertilizer + biofertilizer ) , KH1 = composted cow manure + mycorrhiza , KH2 = composted cow manure + bacterial phosphate solvent , KH3 = composted chicken manure + biological mycorrhizae , KH4 = composted chicken manure + bacterial phosphate solvent , KH5 = compost straw corn + mycorrhizae , KH6= composted maize straw + bacteria phosphate solvent , KH7 = compost Legume cover crop ( LCC ) + Mycorrhiza and compost KH 8= legume cover crop (LCC) + solvent bacteria Phosphate.  The results showed that chicken manure compost fertilizer + fertilizer mycorrhizal give the best effect on the growth and yield of dryland corn yields marginal with an average of 9.70 tons of dry cobs/ha and the combined treatment of chemical fertilizer at 50 % level and composting chicken manure + mycorrhizal give the best effect on the growth and yield of maize in marginal dry land , with an average yield reached 10.51 tons of dry seed/acre.
Co-Authors , Susantidiana ANDI WIJAYA Andi Wijaya Benyamin Lakitan Chandra Irsan Daniel Happy Putra Erizal Sodikin Erizal Sodikin Firdaus Sulaiman, Firdaus Hadi Wirsawan Hamidah . Haris Kriswantoro HENY HAWALID Ifran Imanda Irmawati Irmawati Irmawati Irmawati Marieska Verawaty Marsi Marsi Memen Surahman Muhammad Ammar Munandar Munandar Nopit, Nopit Yohanes NUNI GOFAR Nur khakim, Mokhamad Yusup Prayitno, Muhammad Bambang Renih Hayati Risfidian Mohadi Rujito Agus Suwignyo Sabaruddin Kadir Satria Jaya Priatna, Satria Jaya SITI HERLINDA Supriyadi Supriyadi Susanti - Diana Teguh Achadi Wijaya Mardiansyah Wulandari, Safitri Safari Yakup Parto Yopie Moelyohadi Yudo Winarso