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INDONESIA
Jurnal Lahan Suboptimal
Published by Universitas Sriwijaya
ISSN : 22526188     EISSN : 23023015     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Lahan Suboptimal: Journal of Suboptimal Lands (JLSO) (p-ISSN 2252-6188; e-ISSN 2302-3015) publishes original research papers, literature reviews, and short communications that cover on topics relevant to suboptimal lands: freshwater swamps, tidal lowlands, peatlands, dry and dry acid lands, shaded ecosystem, ex-mined lands, saline and marine coastal wetland ecosystems. The Journal serves as a multi-disciplinary forum covering key issues in Suboptimal Lands science and technology, management, policy and ecological economics. The journal is published by Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO), Universitas Sriwijaya. The journal was first published on April of 2012 with twice per year in frequency on April and October.
Arjuna Subject : -
Articles 669 Documents
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Potential of Moringa oleifera saponins as a preventive of water pollution from the linear compound alkylbenzene sulfonate (LAS) Devi Mariya Sulfa; Ikramina Yusti Amina; Hendra Susanto
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 13 No. 1 (2024): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.13.1.1024.666

Abstract

Increasing detergent consumption in society has an impact on increasing the volume of waste, which has the potential to pollute water ecosystems. TOP Brand Data Search for 2021 states that people worldwide are more interested in using detergents to combat stubborn stains. Indonesian industrial companies are increasingly producing chemical-based detergents. The research aimed to describe the potential of Moringa oleifera saponin as an effort to prevent water pollution from the Linear Alkylbenzene Sulfonate (LAS) compound. The research method uses a rotary evaporator with organoleptic tests. The results found in M. oleifera saponin have a distinctive odour from isothiocyanate compounds, yellowish green colour, pH within 25○C (concentrate 6), the active ingredient of saponin (protease enzyme) of M. oleifera leaves was 8.5%, and specific gravity (2.5%) with a concentrate of 1.2. This research shows that the liquid Detergent produced meets Standar Nasional Indonesia (SNI), and the detergent quality was good. The saponin content of M. oleifera was an alternative for industrial companies and a preventive measure for better water ecosystem processing.    
Tolerance of local gogo rice sprouts under salinity stress conditions Sakka Samudin; Usman Made; Maemunah Maemunah; Jeki Jeki; Mustakim Mustakim
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 13 No. 2 (2024): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.13.2.2024.667

Abstract

The expansion of rice planting areas in the future needs to be carried out outside Java, as fertile land in Java is shrinking due to land conversion. Most of the land outside Java consists of marginal land, such as areas with high salinity. High salinity levels in the soil cause a decrease in plant germination, growth, and production. The research aimed to examine the tolerance of each cultivar at each level of NaCl concentration, to obtain cultivars that were tolerant to salinity stress, and to determine the NaCl concentration that suppresses the germination of local upland rice. The research was structured using a completely randomized design with a two-factor factorial pattern. The first was the six upland rice cultivars, namely, dongan, jahara, Pulu Konta, pomegranate, kalendeng, and pulu tau leru, while the second factor was the NaCl concentration consisting of 0%, 0.2%, 0.4%, 0.6%, 0.8% and 1%. Thus, there were 36 experimental units, which were repeated three times so that there were 108 experimental units. The results of the research showed that there was no interaction with all germination variables; cultivar and concentration had a significant effect on maximum growth potential, germination capacity, germination time, plumule length, radicle length and dry weight of sprouts, while cultivar affected the wet weight of sprouts. Kalendeng has a high salinity tolerance. The use of NaCl concentrations of up to 0.6% has been able to reduce the germination capacity of local upland rice. The conclusion of the research showe that there was no interaction between all germination variables.
Bioecology of Wild Betta Fish (Betta schalleri) of Bangka Island Waters Olivia Khanati; Dona Lista; Lindiatika Lindiatika; Ahmad Fahrul Syarif
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 13 No. 2 (2024): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.13.2.2024.668

Abstract

The Betta schalleri is a wild betta fish endemic to Bangka Island which has potential as an ornamental fish. However, the fish’s endangered conservation status is one of the problems for its conservation efforts. The aim of this study was to analyze the Betta schalleri according to its biological and ecological properties. The research method was quantitative descriptive. Parameters measured in this study included fish morphology, fish meristics, water quality and habitat characteristics. The fish samples collected was 15 Betta schalleri. Observations on the physical characteristics of the Betta schalleri were based on morphometric characters, namely: 1) Total Length (TL) (22355.59 mm); 2) Standard Length (SL) (16386.74 mm);3) Head Length (HL) (3912.51 mm); 4) Head Height (HH) (3112.72 mm); 5) and Caudal Height (CH) (4922.29 mm). The meristic characters brought about the following 1) Dorsal Fin (D.II.8); 2) Anal Fin (A.II.24-25); Ventral Fin (V.I-II.4); Pectoral Fin (P.11-12); Caudal Fin (C.13) and Linea Lateralis (LL.31-32). The betta schalleri typically live in peat water, calm and fresh water that tend to be brown in color. The aquatic plants grow in the form of Pandanus sp. and Utricularia sp. In general, Betta schalleri thrive in a pH of 4-5, a temperature from 280C to 310C, and dissolved oxygen of 5.6- 11 mg/l.
Application of omega 3,6 with Moringa oleifera suplemented vitamin E on rumen fluid characteristics, microbial protein synthesis, and methane gas production in goats on suboptimal lands Angelia Utari; Rikardo Silaban; Novita Aswan; Toga Mahaji
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 13 No. 2 (2024): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.13.2.2024.670

Abstract

Changes in feeding patterns were needed to overcome the problem of methane gas emissions from ruminant livestock and the problem of low productivity at the smallholder livestock level. This solution involves direct action against the gas produced in the stomach of ruminants by providing feed containing active substances to reduce the microbes that produce gas in the stomach. One alternative feed that was often used as a promoter of improving rumen fluid characteristics was the use of omega 3.6 sources together with Moringa leaves enriched with vitamin E. This research aimed to investigate the effect of feeding on methane gas production in goats. The research method used a Randomized Block Design (RAK) with four treatments and five replications in vitro. From the research results, it could be concluded that the use of omega 3.6 together with Moringa leaves enriched with vitamin E was able to reduce methane gas production by 25.62% with a Volatile Fatty Acid (VFA) value of 144.53 mM, pH around 6.99, NH3 11.87 mg/100ml, microbial biomass 20.42 mg/ml, microbial protein 217.58mg/ml, bacterial colony 5.34x109 cells/ml and protozoa population 29x106 cells/ml. This conclusion shows that the use of omega 3.6 with Moringa oleifera supplemented with vitamin E has the potential to consistently improve rumen fluid characteristics and reduce methane gas emissions by using a combination of omega 3.6 sources and Moringa leaves in suboptimal land, as well as vitamin E supplementation.
DNA Barcoding of Brevibora cheeya from Bumang River, Bangka Island Eva Lestari; Siti PNIK Almagribi; Lindiatika Lindiatika; Olivia Khanati; Donalista Donalista; Tiara P Anjani; Andri Kurniawan; Ahmad F Syarif; Ardiansyah Kurniawan
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 13 No. 1 (2024): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.13.1.1024.671

Abstract

Brevibora cheeya is a cyprinid fish found in Bangka, Belitung, Sumatra, and Kalimantan. Bangka locals call this fish Seluang. This species is often considered Brevibora dorsiocellata due to its similar morphology. Molecular methods that have never been used for this species on Bangka Island can be used to confirm this species. This study uses COI genes (DNA barcoding) to molecularly identify Brevibora cheeya fish from Bangka Island and analyze their relationships. The sampling process was conducted in Bumang River, Bangka Island, in February 2023, and identification was conducted at the University of Bangka Belitung Biological Laboratory. NCBI BLAST and MEGA 11 were used for data analysis. The results showed that fish samples from Bangka Island have intraspecific genetic relatedness to B. cheeya from Belitung Island, Bangka Island, Central Kalimantan, and South Sumatra, with genetic distances ranging from 0% to 0.9%. The closest genetic relationship to Rasbora dorsiocellata is 3.2%. The phylogenetic tree showed a bootstrap value of 91 for relationships with the Bangka, Belitung, and Central Kalimantan databases and a bootstrap value of 95 for relationships with the Bangka and South Sumatra databases.
Level of efficiency in using rice production inputs in Rainfed Land, Ulak Jeremun Village, Ogan Komering Ilir Regency Muhammad Yamin; Siti Ramadani Andelia; Meitry Firdha Tafarini
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 13 No. 1 (2024): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.13.1.1024.672

Abstract

High productivity was influenced by optimum production input. Efforts to optimize rice production results include examining the effectiveness of factors that influence rice productivity. This research was useful for providing levels of effective and efficient use of inputs to create efficient use of inputs in rice farming. The research aimed to analyze factors that influence rice productivity, analyze the efficiency of using production inputs in rice farming, and calculate rice farming income. This research was conducted in Ulak Jeremun Village, SP Padang District, Ogan Komering Ilir Regency. The location selection was carried out purposively or deliberately due to the reduction in planting area. Data collection was carried out from August to September 2023. The research method used in this research was the Survey Method. The sampling method used was a simple random sampling method with a total of 60 farmers as respondents. The data used in this research consists of primary data and secondary data. The results of the research show that (1) Factors that have a significant influence on rice productivity in Ulak Jeremun Village are land area, urea fertilizer, and TSP fertilizer. In contrast, those that do not have a significant influence are the dosage of phonska, pesticides, herbicides, fungicides, and the number of workers. (2) The efficiency of production inputs in terms of price for the dose used for seeds and the number of workers was efficient. In contrast, the dose used for fertilizers, insecticides, and pesticides could be more efficient. (3) Rice farming income in Ulak Jeremun Village was IDR 6,940,251 per hectare per year. Income was relatively small because farmers' land was flooded, so many weeds, which cause pests in the fields, were difficult for farmers to control.
Estimation of carbon sequestration of undergrowth and litter in post-burn and unburned peatland in agrosilvofishery demonstration plots, Sepucuk, Ogan Komering Ilir Muh Bambang Prayitno; Bony Dwi Saputra
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 13 No. 1 (2024): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.13.1.1024.673

Abstract

The research aimed to estimate biomass and carbon sequestration in unburned and post-burn peatlands. Data analysis was conducted from January 2023 to February 2023 in Sepucuk Agrosilvofishery Peatland Restoration demonstration plots, Ogan Komering Ilir, South Sumatra. The biomass and litter of understory vegetation were observed in good, medium, and poor vegetation conditions using the destructive method on 0.5 m x 0.5 m observation plots with 3 repetitions, and with 3 repetitions for each vegetation condition. The research depicts that post-burn peatland has a higher average carbon storage of understory vegetation and litter, 1.95 tons/ha for understory vegetation and 0.50 tons/ha for litter. However, unburned peatland has lower average carbon storage, 0.80 tons/ha for understory vegetation and 0.47 tons/ha for litter. The comparison depicts that Purun and Sembangun understory vegetation samples have significantly different results, while the vegetation litter samples have insignificantly different results.
Physical and chemical of soil properties area coffee in Several Banjar Villages, Bangka Regency Ratna Santi; Nyayu Siti Khodijah; Siti Cahyani
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 13 No. 1 (2024): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.13.1.1024.674

Abstract

Coffee plants are one of the plantations commodities in Bangka district bisides from pepper and rubber. The area of coffee plantations in Bangka district was 302,879 Ha with total production from 39.05 Ha of 3 tons. The distribution of community coffee plantations was mainly in the villages Riding Panjang, Deniang, Petaling Banjar, Air with coffee production fluctuating every year. Community managed coffee plantations contain some mature plants and some immature plants. Plant growth and production are influenced by soil and climate conditions. The research aimed to determine the physical and chemical characteristics of coffee plants in four Villages of Bangka Regency. The research method uses survey observation measurements in the field and sample analysis in the laboratory. Soil samples were taken using the diagonal random method. Soil samples were taken at each of the 4 location reseach. Soil chemical properties resulting from analysis at the ICBB Bogor laboratory include pH and soil nutrient availability. Soil biophysical observations carried out include soil color, texture, bulk density, soil porosity, drainage,effective rooting depth. Based on the chemical and physical properties analyzed, the soil condition in the coffee planting area was classified as sour with nutriens availability, low cation exchange capacity and a sandy clay loam texture with low porosity.
Can Rice Farming through the National Strategy Food Estate Increase Regional Production? Syamsuri Yusup; Yoneta Sonia
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 13 No. 2 (2024): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.13.2.2024.675

Abstract

Food estate is a large-scale food development program that is carried out in an integrated manner. This includes agriculture, plantations and livestock within an area. This research aims to (1) analyze the production factors of lowland rice farming as an effort to increase rice production in the national food estate strategy program in Central Kalimantan; (2) analyze the technical efficiency of lowland rice farming in an effort to increase rice production in the national food estate strategy program in Central Kalimantan. This research was carried out at the Siam Village Food Estate (COE). The sampling method used a random sampling method with a total sample of 89 people. The analysis method uses Cobb-Douglas production function analysis and Frontier Stochastic technical efficiency analysis. Research results: (1) land (X1), seeds (X2), lime (X3), and fertilizer (X4) have a significant effect (α<0.05) on lowland rice production results in the Balanti Siam village food estate, while pesticides (X5), labor (X6), machinery (X7), planting system dummy (D1), and planting pattern dummy (D2) do not have a significant effect on lowland rice production results on food aesthetic land in Balanti Siam village; (2) Farmers in Balanti Siam village are classified as technically efficient with an average technical efficiency of 96.5% (cut-off > 0.70), while individually there are 88 farmers who are classified as technically efficient. The production factors used in rice farming play an important role in production results. By using production factors efficiently, this can increase maximum rice production yields.
Development of biofortified rice for reduce stunting rates in South Sumatra Province Rina Sopiana
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 13 No. 2 (2024): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.13.2.2024.676

Abstract

Lack of the element Zn in the body was one of the serious problems of malnutrition in Indonesia because it reduces endurance, productivity and quality of human life, and was one of the factors causing stunting. Stunting is worrying because it can cause problems with a child's growth and development, which is characterized by the child's height being below standard. One of the factors causing stunting is reduced consumption of zinc (Zn), especially in pregnant women and children. Deficiency of the element Zn in the body can be corrected by consuming foods that contain Fe and Zn. This writing aims to inform and convey the idea that one of the efforts that can be made to reduce stunting rates is through the development of Biofortified rice which will produce nutritious rice. To evaluate the impact of rice development, an evaluation was carried out on rice production and its effect on reducing stunting in several districts in South Sumatra. The method used was interviews, recapitulation of primary and secondary data. Biofortified rice cultivation efforts had been carried out in South Sumatra since 2021 in South OKU (1000 ha), in 2022 in Lahat (1000 ha), and in 2023 in eight districts (8000 ha). In general, Biofortified rice production in South OKU Regency (5.28 tons dry Grain/ha) and Lahat Regency (5.08 tons Harvested Dry Grain/ha). Based on the 2021 Indonesian Nutritional Status Survey (INSS) saw a decrease in the average prevalence of stunting in South Sumatra in 2022 to 18.6%, which decreased from 24.8% in 2021, including in Biofortified rice  development districts. Based on the fact that the development of Biofortified rice can be an effort to reduce stunting, The Regional Government was increasingly expanding rice cultivation in almost all districts/cities.

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