cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Sabri Sudirman
Contact Email
sabrisudirman@unsri.ac.id
Phone
-
Journal Mail Official
jlsuboptimal@unsri.ac.id
Editorial Address
-
Location
Kab. ogan ilir,
Sumatera selatan
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
 61   62   63   64   65 
Utilization of Jengkol (Pithecellobium jiringa) Peel Biochar and Chicken Manure as Organic Fertilizer on Red Chili Plants (Capsicum annum L) in Acidic Dry Land Rosmiah Rosmiah; R. Iin Siti Aminah; Dessy Tri Astuti; Neni Marlina; Dewi Meidalima; Beta Pratama
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 12 No. 2 (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.12.2.2023.652

Abstract

Chili (Capsinum annum) is a horticultural plant that is useful as a spice in the kitchen, besides containing vitamins that are good for health. This study aimed as an effort to make jengkol skin agricultural waste useful by adding chicken manure organic fertilizer at different doses with the potential to increase growth and yield of chili plants on acidic dry land. The field experiment was conducted on the land of the Food Crops Agriculture Office, Gandus District, Palembang from March to May 2022. Randomized factorial group experimental design with 2 factors, namely the first factor: the dose of Jengkol Peel Biochar fertilizer (B) consisting of: B1 = 5 tons/ha, B2 =15 tons/ha, B3=25 tons/ha. The second factor: the dose of chicken manure (K) consists of: K0 = 0 (without fertilizer chicken manure), K1 = 10 tons/ha, K2 = 20 tons/ha, K3 = 30 tons/ha. Growth and yield were observed by measuring plant height (cm), stem diameter (cm), number of productive branches (branches), chili weight per plant (g), chili weight per plot (g). The best trial was obtained in the combination treatment dose of 15 tons/ha of jengkol peel biochar fertilizer and 30 tons/ha of chicken manure, which was the best treatment for the growth and production of chilies, with a yield per plot of 343.5 g/plant or equivalent to 10.99 tons/ha.
The impact of government purchase price policy of rice for producers and consumers in Indonesia Tri Wahyudi Saleh; Benyamin Lakitan; Dedik Budianta; Muhammad Yamin; Gemala Cahya; Muhammad Huanza
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.13.1.1024.654

Abstract

One of the rice policies was the government purchase price policy which was the price in grain or rice purchases by the Government at producer level to be stable become government rice reserves. The point of this research was to define the impact of the government purchase price policy of rice for producers and consumers. This research was conducted using qualitative analysis with descriptives based on tabulations of secondary data. Results of the research showed that government purchase price was part of the government's efforts to protect the basic price of grain and rice at the farm level thus creating affordable input prices and providing economic added value to farmers. The study found that an improvement in government purchase price  by 18-20% could increase the price of grain and rice from March to August 2023. The total percentage change in prices from March to August 2023 for dry harvested grain was 10.3%, dry milled grain was 10.8%, premium rice was 0.6%, medium rice was 3.2% respectively. Meanwhile, the impact on consumers of this policy was the occurrence of inflation of 0.41% which caused rice prices to increase. The government should evaluate the Government Purchasing Price (GPP) gradually every year.
Optimizing the growth of pangas catfish seeds through the addition of spirulina in feed Elva Dwi Harmilia; Khusnul Khotimah; Rini Nofianti
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.13.1.1024.655

Abstract

Pangasius catfish (Pangasius sp.) was an important commodity in Indonesia. High demand in the market requires production to be carried out actively. Adding spirulina as a supplement to feed was a way to increase the growth of pangasius catfish seeds for optimal production. The aimed of the research was to determine the effect of spirulina on the growth of pangasius catfish seeds which were added to pelleted feed. The research used a completely randomized design with four levels of treatment. Treatment 1 (100g commercial pellets + 3g spirulina), treatment 2 (100g commercial pellets + 5g spirulina), treatment 3 (100g commercial pellets + 7 g spirulina), treatment 4 (100g commercial pellets + 9g spirulina). The parameters observed were growth of length, weight, survival, and water quality (pH, temperature and dissolved oxygen). The study results showed that the addition of 7 g spirulina had the best effect on growth with a length of 5.25 cm and a weight of 6.74 g. Meanwhile, the lowest occurred when adding 9 g of spirulina with a length of 4.08 cm and a weight of 5.78 g. There was no mortality during maintenance so that the survival rate of pangasius catfish seeds was 100% in each treatment. So the addition of spirulina to feed has an effect on the growth of pangasius catfish. However, if ftoo much spirulina was added, the effect will not be optimal.
Application of ameliorant on the growth and product of pakchong (Pennisetum purpureum cv Thailand) in post-tin mining land Tri Lestari; Ahmad Syazili; Deni Pratama
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.13.1.1024.658

Abstract

Tin mining activities on Bangka Island cause the land to become nutrient-poor. Post-tin mining land use was done by adding ameliorant and cultivating pakchong grass. This research aimed to see the growth and yield of pakchong grass in post-tin mining land by applying mycorrhiza, biosaka and NPK fertilizer. This research was carried out on post-tin mining land in Dwi Makmur Village, Merawang District, Bangka Regency from March 2023 to July 2023. This research used a Randomized Group Factorial Design (RAKF) consisting of 2 treatment factors. The first factor was giving Mycorrhiza (B1) and Without Mycorrhiza (B2). The second factor was NPK 100% (P1), NPK 75% + Biosaka (P2) and NPK 50% + Biosaka (P3). The analysis of variance showed that mycorrhizal treatment had a significant effect on the number of leaves and tillers and had no significant effect on other treatments. Giving NPK + Biosaka treatment had a very significant effect on the number of leaves and had no significant effect on other treatments. The mycorrhiza  to pakchong plants grows better than without giving mycorrhiza. Giving a fertilizer to the 75% NPK + Biosaka (P2) treatment had no significant effect on the 100% NPK (P1) treatment. Giving mycorrhiza + NPK 75% (B1P2) results in higher plant height and leaf number compared to other treatments.
Optimizing rice farming business inputs in shallow freshwater swamp (case study of Sungai Dua Village, Rambutan District, Banyuasin Regency) Yuwinti Nearti; Muhammad Andri Zuliansyah; Nirmala Jayanti
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.13.1.1024.660

Abstract

One of the food crops that was widely cultivated by the community was lowland rice. Food security was a superior commodity where lowland rice was the icon. The objectives of this research was to determine the use of production factors in optimizing rice based on output effects through farming inputs and to determine production factors in the economic efficiency of rice farming. The research used production function analysis Cobb Douglas and Marginal Product Value. The production factor data analysis method used multiple regression analysis with software SPSS 25 while Marginal Product Value (NPM) used Stochastic Frontier Analysis (SFA). The results of the research showed that production factors that could influence the input of rice farming consist of fertilizer and seeds, where each time more input was used for the part needed, the farmer's income in planting period 1 was higher than planting period 2. Lowland rice farming in Sungai Dua Village, District Rambutan Banyuasin Regency in shallow swampy areas, after Marginal Product Value analysis was carried out, the planting season for both period 1 and period 2 was declared inefficient. Farming inputs that were not yet optimal in shallow swampy areas consist of fertilizer and seeds. The seeds used by Inpara 2 were suitable for swampy land but were still used excessively, while fertilizer was an increase in nutrients for the soil and plants but the use was still small due to farmers' limited capital. limited. F-hit >F- tab in each stratum with a confidence level of 95% in each stratum, it was stated that the independent variables together have a significant effect on the dependent variable. Intensification of plant maintenance was given more attention by increasing the use of labor to support increased output and maximum income.
Variations of pest and disease attacks on horticultural and non-horticultural crops in South Sumatra Arsi Arsi; Bambang Gunawan; Suparman Suparman; Titi Tricahyati; Hesti Hesti
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.13.2.2024.661

Abstract

Horticultural crops of olericultural types that were given a lot of chemical pesticides cause many negative impacts such as the emergence of pests and pathogens that were immune to pesticides, the emergence of new pests, increased pest populations and secondary pathogens, reduced populations of beneficial insects (predators). The study aimed to consider the use of pesticides by farmers to eradicate pests and diseases in horticulture and non-horticulture in South Sumatra. The research was conducted in South Sumatra Province. The research was conducted in 7 districts and 1 city, namely Indralaya District, North Indralaya District, Air Kumbang District, South Pemulutan District, Gelumbang District, Belitang Mulya District, Tanjung Batu District, and Palembang City, which was conducted from May to September 2022. Data were collected using the Secondary Variables method with Purposive sampling technique and processed into analyzed data. The results of this study showed that the most horticulture cultivated by farmers was eggplant(Solanum melongena L.). While for non-horticulture the most widely cultivated by farmers was corn(Zea mays). The percentage of pest attacks on non-horticultural land was 57.36%, the percentage of pest attacks on horticultural land was 68.28%. Variations in pest and disease attacks that occur in 180 farms on horticultural and non-horticultural crops in South Sumatra. Horticultural crops that are widely cultivated in South Sumatra include cucumber, long beans, and eggplant. Meanwhile, non-horticultural crops are corn, rice, and rubber. Spodoptera frugiperda was a pest that has been found to damage corn crops and Leptocorisa sp species that damage food crops (No Horticulture). Counseling was provided to farmers to find out the types of pests that could attack and the symptoms and diseases in plants to know how to control them.
Pests and diseases of horticultural crops in Tanjung Seteko Village Indralaya District, Ogan Ilir Regency, South Sumatra Arsi Arsi; Tika Rahmawati; Amirah Salsabila; Fuji Anugrah; Mira Andani; Fitri Ani; Rintan Sartika Rahmadhonna; Muhammad Arifudin
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 14 No. 1 (2025): 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.14.1.2025.662

Abstract

Cultivation of horticultural crops is often faced with the problem of plant pests, namely pests and plant diseases which cause plant productivity to decrease. In controlling pests and diseases, farmers often use synthetic pesticides, but farmers use pesticides that do not comply with regulations. The research aimed to identify species of pests and diseases in horticultural crops and farmers' in Tanjung Seteko Village, Indralaya District, Ogan Ilir Regency, South Sumatra in controlling pests and diseases of horticultural crops. This research method used purposive sampling and direct observation in the field. The farmers who were interviewed were farmers who grew horticultural crops. The results of this research found that vegetation around plants influences the diversity of pests and diseases. There were 8 pest species found with the highest attack rate of 17.56%, namely Diaphania indica attacks and the lowest attack intensity was Valanga sp. 0.19%. There were 8 types of diseases found with the highest attack rate being 41.11% (Cucumber mosaic virus) and the lowest at 0.56% (fusarium wilt). Pest and disease control with the application of synthetic pesticides by farmers was in a good category. The scoring of farmer’s respondent statements in Tanjung Seteko Village was obtained with a score range of 28-41. The scoring results show that farmer’s behavior in using pesticides is in the good category.
Land suitability evaluation in the Northern Limestone Mountains of Tuban Regency, East Java for torch ginger (Etlingera elatior Smith) cultivation Fadhilatul Laela; Syah Deva Ammurabi
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.13.2.2024.663

Abstract

Torch ginger (Etlingera elatior) is a herbaceous plant from Southeast Asia, traditionally used as herbal medicine by local people due to its antibacterial, antiviral, anti-inflammatory, anti-allergic, antioxidant, and anti-cancer properties. Despite its various benefits, this plant has struggled to enter the market because it has not been cultivated on a large scale. Therefore, the opportunity for commercial cultivation of this plant remains wide open. Tuban Regency is a potential agricultural district in Java, strategically positioned on the main road between Central Java Province and East Java Province. Unfortunately, little research has been conducted on land suitability evaluation in Tuban Regency’s agricultural areas. This research aimed to evaluate land suitability for torch ginger cultivation in Tuban Regency. Based on the studies conducted, agricultural land in Tuban Regency is quite fertile, but adequate irrigation is necessary to help the plants survive during the dry season. Torch ginger naturally grows in densely vegetated areas with sufficient water availability. Therefore, cultivating torch ginger in Tuban requires several special treatments, such as maintaining water availability, providing shade and mulch to regulate temperature and humidity, applying phosphorus and organic fertilizers to address phosphorus fixation in limestone soil, and using growth regulators like paclobutrazol to overcome flowering inhibition. From the various literature that has been studied, it was found that the land in the Northern Limestone Mountains of Tuban Regency, is quite fertile and suitable for agricultural land.
Diversity of ecological functions of the insect families found in Citalahab Area of Mount Halimun Salak National Park (TNGHS) Hasni Ruslan; Alifia Rahmah; Emilia Nurindri Y; Johan Faruq H; Abdimas Nazak H
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.13.2.2024.664

Abstract

The Citalahab area of ​​Mount Halimun Salak National Park (TNGHS) contains a diversity of insects with different ecological roles. In each type of habitat there was a composition of insect ecological roles. The study aimed to determine the diversity of ecological roles of insects in forest and plantation vegetation types in the Citalahab Area of ​​the Mount Halimun Salak National Park (TNGHS). This research uses the Simple Random Sampling method using pitfall traps in randomly determined plots measuring 20 x 20 meters (5 pit fall traps) in forests and plantations, with a total of 2 plots. There were 8 orders, 36 families with ecological roles such as: disease vectors, saprophages, pollinators, pests, predators, parasitoids, fungus eaters and decomposers. Insect families that act as parasitoids and disease vectors were only found in forest vegetation types. The richness of resources found in a habitat influences the diversity of the ecological roles of the insects found in it.
Comparative effectiveness of packaging design pheromone product to sustainable pest management of rhinoceros beetle in oil palm plantation Henny Hendarjanti
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.13.1.1024.665

Abstract

The rhinoceros beetle (Oryctes rhinoceros L.) is the primary pest of oil palm plants. Rhinoceros beetle pest attacks cause severe damage to immature and mature plants. They produce an aggregation pheromone identified as ethyl-4-methyloctanoate (E4-MO). Rhinoceros beetles use this pheromone to find suitable habitats for foraging and breeding in the landscape of oil palm plantations. The mass use of pheromone traps has been used to monitor and capture imago stages of O. rhinoceros in the implementation of integrated pest management. Many commercial E4-MO pheromone products have been developed on the market with different packaging designs. The research aimed to determine packaging designs that increase attractiveness and effectiveness in catching rhinoceros beetles. The research was conducted at an oil palm plantation in Indragiri Hulu Regency, Riau. This research was an experimental method. The four design pheromone (permeable sachet, micropore sachet, tube dispenser and double dispenser) were installed in each oil palm planting block (planting area ± 30 ha/block). The number of installations for each design is three units/block with five replications. The assessment of rhinoceros beetle catches was carried out over four months. The results showed significant differences in the catch of rhinoceros beetles. The 4th month of observations showed that the double dispenser packaging design resulted in a higher total catch of rhinoceros beetles, with an average of 161.40. Meanwhile, permeable sachets, microporous sachets, and tube dispensers were 138.20, 139.80 and 91.00 beetles, respectively. Determining the pheromone packaging design is crucial to providing an effective and efficient pest management strategy. 

Page 63 of 67 | Total Record : 669

 61   62   63   64   65 

Filter by Year

2012 2026


Reset
Filter By Issues
All Issue Vol. 15 No. 1 (2026): JLSO Vol. 14 No. 2 (2025): JLSO Vol. 14 No. 1 (2025): JLSO Vol. 13 No. 2 (2024): JLSO Vol. 13 No. 1 (2024): JLSO Vol. 12 No. 2 (2023): JLSO Vol. 12 No. 1 (2023): JLSO Vol. 11 No. 2 (2022): JLSO Vol. 11 No. 1 (2022): JLSO Vol. 10 No. 2 (2021): JLSO Vol. 10 No. 1 (2021): JLSO Vol. 9 No. 2 (2020): JLSO Vol. 9 No. 1 (2020): JLSO Vol. 8 No. 2 (2019): JLSO Vol. 8 No. 1 (2019): JLSO Vol. 7 No. 2 (2018): JLSO Vol. 7 No. 1 (2018): JLSO Vol. 6 No. 2 (2017): JLSO Vol. 6 No. 1 (2017): JLSO Vol. 5 No. 2 (2016): JLSO Vol. 5 No. 1 (2016): JLSO Vol. 4 No. 2 (2015): JLSO Vol. 4 No. 1 (2015): JLSO Vol. 3 No. 2 (2014) Vol. 3 No. 1 (2014) Vol. 2 No. 2 (2013) Vol. 2 No. 1 (2013) Vol. 1 No. 2 (2012) Vol. 1 No. 1 (2012) More Issue