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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 323 Documents
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Level of efficiency in using rice production inputs in Rainfed Land, Ulak Jeremun Village, Ogan Komering Ilir Regency Yamin, Muhammad; Andelia, Siti Ramadani; Tafarini, Meitry Firdha
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 Prayitno, Muh Bambang; Saputra, Bony Dwi
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 Santi, Ratna; Khodijah, Nyayu Siti; Cahyani, Siti
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? Yusup, Syamsuri; Sonia, Yoneta
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 Sopiana, Rina
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.
Strategy for improving sugar palm agroindustry institutions in South Tapanuli Pulungan, Sutan; Harahap, Angelia Utari; Aswan, Novita; Nasution, Zakiyah
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.13.1.1024.677

Abstract

One of the palm oil derivative products that has the potential to grow in southern Tapanuli was the processing of sap or brown sugar which has been produced by palm trees through rural industrialization using palm sugar processing technology. In developing palm oil farming in South Tapanuli, it was important to prepare institutions through science and technology with structural equation models. The objective of this research was to develop an agro-industry development strategy to improve the institution of palm trees. This research was observation respondents totaling 112 brown sugar producers. The result was to produce a statement through the perceptions of sugar palm farmers in Tapanuli, that sugar palm farmers in Tapanuli support the role of women in managing palm agro-industry institutions and agree that women will be able to take a role in resolving conflicts in sugar palm agro-industry institutions. Sugar palm farmers in Tapsel agree that there will be many differences of opinion from people who will manage the sugar palm agro-industry and differences of opinion will affect the existence of the sugar palm agro-industry in Tapanuli Selatan.
Recycling of water treatment plant sludge for copper adsorption from aqueous solutions Riyanti, Anggrika; Hadrah, Hadrah; Zeusica Sihombing, Arisanti Monica
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.13.2.2024.681

Abstract

Recent studies have explored various adsorbent materials that are low-cost, available in quantity, and effective for heavy metal removal, one of them is the Water Treatment Plant (WTP) sludge. The study aimed to investigate the potential of recycling Water Treatment Plant sludge into an adsorbent for Cu (II) removal. The sludge adsorbent was carbonized by using a furnace at 600°C for 2 hours. This study was conducted in batch. The adsorbent effectiveness was analyzed by varying the dosage, contact time, and activation of the sludge adsorbent on Cu (II) removal. The adsorption isotherm was analyzed using the Langmuir and Ferundlich models, and the kinetic study used pseudo-first-order and pseudo-second-order model. The results showed the removal efficiency of Cu (II) for both activated and non-activated sludge adsorbents reached 98.6–99.9%. The addition of dosage did not affect the increase in Cu (II) adsorption capacity. Activation of the adsorbent increased the adsorption capacity of Cu (II) with the equilibrium time at 60–90 min, shorter than the non-activated adsorbent at 90–120 min. The adsorption isotherm model for both adsorbent types fitted well to the Langmuir model, indicating the adsorption process occurs in a single layer on a homogeneous surface. The adsorption kinetics followed pseudo-second-order with a high correlation coefficient. Water treatment sludge, an industrial by-product, has the potential to be an effective and low-cost adsorbent material for Cu removal.
Effectiveness of Biochar application on the growth of red chili plants during the vegetative stage under waterlogging Az-Azahra, Risma Chantrika; Siaga, Erna; Herlina, Herlina; Meihana, Mei
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.13.2.2024.686

Abstract

The riparian wetland offers potential for horticultural crop cultivation, such as chili peppers. It is important to consider cultivation techniques and the use of organic matter to improve soil properties, particularly to combat waterlogging during the rainy season. This study aimed to assess the impact of biochar application on the growth of chili peppers (Capsicum annuum L.) during the vegetative stage under waterlogging conditions. This research was conducted at the experimental land of the Agrotechnology Department, Faculty of Plant and Animal Sciences, Universitas Bina Insan from December 2022 to February 2023. This research employed a complete randomized design (RAL) factorial with two factors. The first factor involved waterlogging stress, including control (C) and waterlogging stress (W). The second factor (N) encompassed the application of biochar, namely without biochar (N0), rice husk biochar (N1) and coconut shell biochar (N2) at a dose of 200 g plant-1. The results showed that waterlogging conditions (W) and biochar application (N) showed significantly different results in shoot length, root length, number of leaves, and total dry weight of chili plants, while the interaction (WxN) showed significantly different in shoot length and root length of plants. Treatment without biochar (N0) in waterlogging conditions actually showed shoot length, root length, number of leaves and total dry weight of plants that were significantly higher than treatment coconut shell biochar (N1) and rice husk applications (N2).
Soil erosion sensitivity of rubber plant, oil palm, and teak in Ogan Komering Ilir District Priatna, Satria Jaya; Sepriansyah, Ahmad
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.13.2.2024.698

Abstract

Soil erodibility was the ease with which soil erodes. The study aimed to determine the value of soil erodibility on rubber, oil palm, and teak land at PT Waimusi agroindah. The method used was a very detailed survey, assisted by digital maps. Soil samples were taken based on the study area. Soil samples were taken at 0–30 cm deep and topsoil for soil permeability analysis as well as the completeness of the tools and materials needed. The calculation of the value of soil erodibility on rubber, oil palm, and teak land has moderate criteria. The equation of these criteria in quantitative numbers for oil palm land has a value of 0.18, which was higher than rubber land at 0.15 and teak land at 0.13. While on forest land, the soil erodibility value was 0.04, so it falls into very low criteria. The conclusion of this research was that rubber, oil palm, and teak land obtained soil erosion sensitivity values with moderate criteria, and the results of soil erosion sensitivity values on forest land were classified as very low. This research was one of a series of several factors used to determine the potential for land erosion. Further research needs to be done so that the potential for erosion could be determined from all the factors that affect the potential for erosion.
The role of superior varieties in increasing rice productivity on tidal lands in South Sumatra Sri Ratmini, Niluh Putu; Hutabarat, Pandu; Khusniyati, Siti
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.13.2.2024.702

Abstract

The development of tidal land as agricultural land is one opportunity to meet food needs. The study aimed to determine the contribution of superior varieties in increasing tidal rice productivity in South Sumatra. The research was conducted in Banyuasin Regency in 2021 using survey and interview methods. The number of sub-districts where sampling was taken was 9 sub-districts which are representative of low tide land. The data collected in this research were the results of harvested dry grain (tiles), the varieties used, the type and dose of fertilizer used, planting methods and cropping index. Apart from primary, secondary data was also collected  as supporting data in the form of land area for each region and climatic conditions. The data taken was tabulated and analyzed  descriptively. The research results show that the productivity level of superior rice varieties is higher than the district average productivity. Increasing productivity by applying superior varieties reaches 1.5 t/ha.

Page 31 of 33 | Total Record : 323

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