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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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The Optimatization of Kissing Gourami (Helostoma temminckii) Fry Density in Recirculation System Culture M Tansuka; Ferdinand H Taqwa; Retno C Mukti
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 11 No. 2 (2022): 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.11.2.2022.580

Abstract

Kissing gourami (Helostoma temminckii) is a type of swamp fish that has the potential to be cultivated. The increasing of yield for this fish can be done by optimization of stocking density. The problem of aquaculture with high stocking density is decreased water quality, growth and fish survival. One of the efforts to overcome this problem is through the management of the cultivation environment using a recirculation system. The purpose of this study was to determine the optimal density of kissing gourami fry on a recirculation system. This research method used a completely randomized design (CRD) using 4 treatments of fish stocking density (2, 3, 4, and 5 fish/L, respectively),  which was carried out with 3 replications. The parameters observed included water quality, growth, survival rate, and fish blood glucose level. The results of this study indicated that the best density was 2 fish/L with absolute weight growth was  0.55 ± 0.03 g, absolute length growth was 0.53 ± 0.05 cm, survival rate was 86.67 %, blood glucose levels were 50.67−52.56 mg/dL and food conversion ratio was 1.29. The water quality value during the fish rearing was in the appropriate range, i.e. temperature 28.4−30.4°C, pH 6.6−7.4, dissolved oxygen 5.08−6.54 mg/L and ammonia 0.12−0.25 mg/L.
Re-utilization of Sub-optimal Used-planting Media to Cultivate Black Rice in the Pot ES Halimi; MN Lestari; C Syakirin; I Pales
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 11 No. 2 (2022): 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.11.2.2022.581

Abstract

Beside reducing production cost, re-utilization sub-optimal used planting media was environmentally good practice, especially when the plants were cultivated in the pots. This research incorporated black rice accession that had high economic value. The plants were cultivated in 10-kg pots, arranging in Randomized Block Design with three replications, each consisted of 5 pots. The treatments were weight-based additions of local organic soil and commercial organic fertilizer of 5 %, 10 %, 15 %, and 0 % (no-addition). Result of this research indicated that 10 % addition of local organic soil was considered enough to cultivated black rice in the pots. The plants were observed to grow normal with plant height reached 150 cm, consisted of 70 clumps and produced 56.52 g dry seeds per pot, equivalent to 11.69 ton per ha. In percentage, addition of 5, 10 and 15 % local organic soil, resulted in 33-53 % increase in number of mature panicles, 33-56 % increase in total number of seeds, 123-232 % increase in number pithy seeds, and 106-289 % increase in weight of dry seeds per pot.
The Application of Chicken Manure and NPK Fertilizer on Growth and Yield of Shallot Plant in Tidal Land of Banyuasin Regency Susilawati Susilawati; Irmawati Irmawati; Sri Sukarmi; Muhammad Ammar
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 11 No. 2 (2022): 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.11.2.2022.582

Abstract

The aim of the study was to obtain proper technique for cultivating shallots of Bima Brebes variety through the use of chicken manure and NPK fertilizer on tidal land. The research was located on tidal land in Sukatani Village, Tanjung Lago District, Banyuasin Regency, South Sumatra Province, located at a position of 1.30° – 4.0° South Latitude and 104° 00' – 105° 35' East Longitude. The study used a randomized block design with one treatment factor and three replicates. The treatment was the dose of organic chicken manure with 5 levels, namely P0 = no chicken manure; P1 = 10 tons of manure per hectare; P2 = 15 tons of manure per hectare; P3 = 20 tons of manure per hectare; P4 = 25 tons of manure manure per hectare. Each treatment was mixed with NPK fertilizer at a dose of 200 kg NPK ha-1 (M). Data analysis was carried out by analysis of variance using F test and least significance difference (LSD) test. The variables observed were leaf length, leaf number, plant dry weight, specific leaf area, specific leaf weight, root-shoot ratio, relative growth rate, net assimilation rate, bulb fresh weight, bulb number, bulb diameter, bulb dry weight, and percentage of bulb shrinkage. The results showed that the use of chicken manure 10 tons/ha and 200 kg NPK/ha affected the growth of shallots on leaf length, root-shoot ratio, relative growth rate, bulb fresh weight and bulb dry weight. It was then concluded that it can increase the growth and yield of shallots of Bima Brebes variety on tidal land.
Growth and Yield of Spinach (Amaranthus tricolor L.) Using Various Compositions of Planting Media Fitra Fadhilah Rizar; Maria Fitriana; Teguh Achadi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 12 No. 1 (2023): 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.12.1.2023.585

Abstract

Spinach was a vegetable that was rich in nutrients and has many health benefits. The high level of public consumption of spinach plants in line with population growth, it was necessary to increase production by using organic fertilizers. This research aimed to determine the effects of the composition of the growing media among soil, chicken manure, and oil palm empty fruit bunches fertilizer on the growth and yield of spinach. The research used a completely randomized design (CRD) with 6 treatments repeated three times and each treatment unit consisted of 5 plants so that the total number of all plants was 90 plants. The results of the analysis of diversity showed that the treatment of chicken manure and oil palm empty fruit bunches fertilizer had a very significant effect on the plant height, leaf area, plant fresh weight, crown fresh weight, root fresh weight and plant dry weight. The provision of chicken manure and oil palm empty fruit bunches fertilizer had a significant effect on the number of leaves, but had no significant effect on the level of greenness of the leaves and the root shoot ratio.  The results of the study showed that the soil treatment: chicken manure: oil palm empty fruit bunches fertilizer (1:2:2) provided the best results on the variables of plant height, number of leaves, leaf area, plant fresh weight, crown fresh weight, root fresh weight, and plant dry weight. The soil composition : chicken manure : oil palm empty fruit bunches fertilizer (1:2:2) was the best combination of planting media for the spinach growth and yield. Spinach cultivation using the composition of soil planting media, chicken manure, oil palm empty fruit bunches (1:2:2) could increase crop yields.
Spatial Planning Concept for Genetic Resource of Local Paddy Development to Support Sustainable Agriculture in Central Kalimantan Andy Bhermana; Susilawati Susilawati
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 12 No. 1 (2023): 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.12.1.2023.593

Abstract

Central Kalimantan region with an area of 15,451,287 hectares has in large number of biodiversity including genetic resources of local paddy plant. One of the threats to the preservation of genetic resources for local paddy in Central Kalimantan include the intervention of human activity through land use and conversion of forest land for plantation industries expansion. The availability of land resources with its geographic areal potential as the original habitat of genetic resouce of food crops in Central Kalimantan need to be managed rationally and sustainable through preparing spatial planning concept. The objective of study was to establish the concept of regional planning in order to determine land allocation for conservation area. Exploration survey methods was used to inventory the existence of genetic resource of local paddy plant as objects of analysis for drafting planning concept. Geographic information system (GIS) application was used to assist the process of spatial analysis in order to produce spatial information of regional planning as part of the GIS. The results of the inventory and spatial analysis explained that number of diversity of genetic resource for local paddy  in wetlands was 55 plants while in for uplands, there were 68 plants of local paddy, spatially located at river streams associated with settlement areas. The concept of regional planning for the allocation of wetland conservation area involve Kotawaringin Barat, Kotawaringin Timur, Seruyan, Pulang Pisau dan Kapuas,  with areas priority of Kotawaringin Timur and Pulang Pisau. Meanwhile, for uplands, the allocation was addressed to Lamandau, Kotawaringin Barat, Katingan, Gunung Mas, Pulang Pisau, Kapuas Barito Timur, Barito Utara dan Murung Raya with priority emphasis on Lamandau and Katingan regency.
Description of Changes on C-organic, N also The Growth of Pepper Shrub due to The Application of Vermicompost in a Floating System Nadhira Ghea Salsabila; Siti Masreah Bernas
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 12 No. 1 (2023): 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.12.1.2023.595

Abstract

The development of pepper shrub requires an additional fertilizer, hence the pepper plants were classified as nutrient voracious. This study aimed to describe changes in vermicompost on soil N, C-organic and pepper shrubs growth in a floating system. This study utilize a Randomized Block Design Factorial, with 5 levels of treatment, V0 (0 g/plant), V1 (250 g/plant), V2 (500 g/plant), V3 (750 g/plant), and V4 (1000 g/plant). The results indicate that the Vermicompost treatment has no significant effect to increase soil C-organic and soil N nutrient. With the vermicompost treatment, the highest result for soil C-organic and soil N nutrient was produced by 1000 g vermicompost/plant. The best enhancement in plant N nutrient was produced by 500 g vermicompost/plant. The average value of the best number of leaves produced by 1000 g vermicompost/plant. Some leaves indicate some symptoms of disease caused by the fungus Phytophthora capsici which then at 12 WAP there were three unsuccessful plants. As a conclusion, the application of vermicompost was able to provide nutrients for pepper shrubs, especially for increasing C-organic, N nutrient of soil and plants as well as the plant growth.
Accumulation Levels of Available Cu and Cu Absorption in Corn in Ultisolss and Alfisolss After the Addition of Fly Ash and Organic Materials Benito Heru Purwanto; Eko Hanudin; Erin Destri
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 12 No. 1 (2023): 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.12.1.2023.617

Abstract

Fly ash was a byproduct of burning coal in thermal power plants that can be used in agriculture as a source of micronutrients. This study aimed to determine the effect of fly ash combined with Biochar and Manure on the chemical properties of the soil, plant growth, and the absorption of Cu corn plants. The study design used a randomized design of factorial groups, with soil type factors namely Alfisols and Ultisols with three repeats. Agronomic observations include plant height, dry weight of roots and headers. Laboratory analysis includes preliminary soil, Fly Ash, Manure, Biochar, soil analysis after harvest, and Cu in leaf. The results showed that the availability of Cu elements in Ultisols was higher by 5.37 mg/kg than Alfisols with an average of 3.90 mg/kg.  Cu absorption in maize crops grown in Alfisols soil was greater with an average of 54.7 mg/g when compared to those planted in Ultisols soil by an average of 50.3 mg/g. The treatment between Fly Ash and Manure in a ratio of 1:1 has a tendency to increase Cu absorption with a value of 68 mg/g. Alfisols soil was significantly correlated with organic matter to Cu absorption in Corn plants with a value of R= 0.827. The conclusion of this study was that the availability of Cu elements in Ultisols soil was higher than in Alfisols soil and Cu uptake in corn plants was lower after being treated with the addition of manure and Biochar and corn plant growth was better.
Application of Organic Fertilizer Cow Dung and Biofertilizer in Shallots (Allium Acalonicum L.) in Lowland Rastuti Kalasari; Neni Marlina; Marlina Marlina; Nurul Husna; Irnady Irnady
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 12 No. 1 (2023): 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.12.1.2023.620

Abstract

Lowland has the potential to be developed to plant shallots, given the importance of shallots in meeting the growing needs of the Indonesian people and supported by a high market share, therefore to increase the productivity of shallots in Lowland it is necessary to apply organic cow dung and biofertilizer.  The purpose of this study was to determine the best organic cow dung and biofertilizer in increasing the productivity of shallots on land or in lowland. This research was conducted in Seri Tanjung Village, Tanjung Batu District, Ogan Ilir Regency, South Sumatra Province. The layout of the experiment was in polybags using a factorial randomized block design with 8 treatment combinations which were repeated 4 times. Factor 1 is organic cow dung fertilizer, namely 0, 7.5, 15, 22.5 tons/ha. Factor 2 is biofertilizer, namely without and biofertilizer. The highest production (dry weight of plant tubers) was achieved in the application of organic cow dung fertilizer of 15 tons/ha with bio fertilizers, which was 53.56 g/plant.
Vermicompost Application on Shallot (Allium cepa, L.) Nanik Setyowati; Indra A Nugraha AR; Widodo Widodo; Zainal Muktamar
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 12 No. 1 (2023): 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.12.1.2023.621

Abstract

Vermicompost is an organic fertilizer containing essential macro and micronutrients for plant growth. This study aimed to determine the dose and time of vermicompost application to the shallot. The study was carried out at an altitude of 1054 meters above sea level in Air Duku Village, Selupu Rejang District, Rejang Lebong Regency, Bengkulu Province. A Split Plot Design with three replications was used in the study. The main plot was the time of vermicompost application, which was ten days before and during planting. Sub-plots were vermicompost doses of 0, 10, 20, 30, and 40 tons/ha. Vermicompost applied ten days before planting at a 40 ton/ha resulted in the tallest shallot shoot (36.60 cm) and the highest number of leaves (28.20). Vermicompost applied ten days before planting produced more shallot bulbs (4.46 bulbs), larger bulb diameter (19.18 mm), heavier bulb weight per clump (4.75 g), and heavier bulb weight per m2 (837.73 g) than vermicompost applied at planting. Vermicompost at a dose of 40 tons/ha resulted in 5.80 bulbs per plant, 18.96 mm bulb diameter, 4.63 g bulb weight per clump, and 1022.25 g bulb weight per m2, higher than the lower dose. Therefore, vermicompost could benefit as a source of plant nutrients, comparable to synthetic fertilizers in shallot production.
Growth and Yield of Shallots at various Plant Spacing in Ultisol Dry Land Budiyati Ichwan; Eliyanti Eliyanti; Zulkarnain Zulkarnain; Susilawati Susilawati; Indra Permana
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 12 No. 1 (2023): 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.12.1.2023.622

Abstract

Plant spacing was one method that could be used to boost plant populations. In order to increase shallot (Allium ascalonicum L.) production and productivity on less-than-ideal ground, such as dry land in Jambi. This study aimed to examine the effects of various plant spacing on the growth and yield of shallots and to obtain plant spacing that provides the best shallot growth and yield. This research was conducted at the Teaching and Research Farm, Faculty of Agriculture, University of Jambi. The design used a   Randomized   Block   Design (RBD) consisting of four treatments with six replications. The treated plant spacing was:10 cm x 10 cm; 15 cm x 15 cm; 15 cm x 20 cm; and 20 cm x 20 cm. Various plant spacing affected the shallot growth and yield, and a plant spacing of 15 cm x 15 cm provided better growth and yield compared to any other plant spacing, with the number of leaves per plant, the weight of bulbs per clump, and the weight per bulb of 22, 49, 49.84, and 13.94 g   successively.

Page 27 of 33 | Total Record : 323

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