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Jurnal Lahan Suboptimal

jlso
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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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Peningkatan Toleransi Dua Varietas Padi Terhadap Cekaman Terendam Melalui Perlakuan Pemupukan Pada Lahan Rawa Lebak Gribaldi Gribaldi; Nurlaili Nurlaili
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 5 No. 1 (2016): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Gribaldi et al, 2016.Â Tolerance Improvement of Two Rice Varieties to Submerged Stress ThroughÂ Fertilization Treatment in Swamp. JLSO 5(1):1-9.Rice plants tolerance to the submerged conditions need to be improved in order to minimize the crop damage during the immersion. To increase the tolerance of rice plants effort is required to produce a good plant growth and early high vigor before the immersion, one through fertilization treatment. This study aims to obtain proper fertilization technology that can increase stress tolerance of rice plants submerged in swampy embankment conditions. The experimental design used in this study is the split plot design with three replications. The main plot is the fertilization treatment (P) consists of;Â P0 = full doses of N fertilization without submerged, P1 =Â full doses of N fertilization with submerged, P2 = Â½ doses of N fertilizer with submerged.Â The subplots are varieties of rice (V) consist of; V1 = Variety of Inpara 5, V2 = Variety of IR 64. The results of the study showed that fertilization treatment affect on rice plants tolerance to stress submerged, Â½ doses of N fertilizing may increase the tolerance of crops to submersion stress, Variety of Inpara 5 tends to be more tolerant to submersion stress than the varieties of IR 64 at various fertilization treatment.

Evaluasi Pertumbuhan dan Seleksi Tanaman Padi Aksesi BC2F2 Toleran Cekaman Terendam Serta Persilangan balik-nya dengan Tetua Lokal Meri Hasmeda; Entis S. Halimi; Rizky Yudhan Guswari
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 1 (2017): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Hasmeda et al, 2017. Growth Evaluation and Selection of Several BC2F2 Â Rice Accession Tolerant to Submergence Stress and Their Backcrossing to Local Parent. JLSO 6(1):7-20.Â This study was aimed to conduct selection process upon the four accessions of BC2F2 rice which were tolerant to submerging stress during vegetative stage. The selected plants were crossed with local parents. Local parents being used in this experiment consisted of Payak Silembuk, Siam, Pegagan, and Pelita Rampak. Â There were several backcrossing being observed i.e. BC2F2 Accesion (BC2F2Py.Silembuk, BC2F2.Siam, BC2F2.Pegagan, and BC2F2P.Rampak) which were evaluated on the 20th day after being planted for 14 days. Parameters were observed before and after submerging process. The data obtained were analyzed with the Least Significant Difference (LSD) formula. As the result, BC2F2Pys accession had better tolerance compared with the rest of accessions and showed consistent resultsas the previous research. It is concluded that the accession of BC2F2Py.Silembuk showed the best performance among the other Â of BC2F2.

The Improvement of Rice Postharvest Technology in Sub-Optimal Land Hasbi Hasbi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 2 (2012)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Hasbi. 2012. The Improvement of Rice Postharvest Technology in Sub-Optimal Land. PLSO 1(2):186-196. Rice is the most exerted food crop commodity in Indonesia. Rice production has continuously been increased in order to support food security policy. Improvement of cultivation technology has been proved to increase rice production significantly.Â Increase in rice production should be followed by the improvement of rice quality based on the standard and consumer preference. The improvement inÂ quality may also be enhanced by proper postharvest technology. Improvement of rice quality will result in more added value on rice. Therefore, proper technology which includesÂ production, harvest, and post harvest should be done in an integrated manner in order to increaseÂ rice quality and at the same time decrease weight loss. Rice postharvest technology consists of harvesting, threshing, transportation, drying, cleaning and storage. These postharvest activities are often followed byÂ rice milling. However, farmers awareness and knowledge regardingÂ proper postharvest technology are lacking and its application is considered low. Improvement of postharvest handling technology should be prioritized to include three stages, which areÂ harvesting, threshing and drying due to high loss occured in these stages. The improvementÂ of harvest and postharvest technologies should incorporate human resource ability andÂ information dissemination based on the principles of Good Handling Practices (GHP).

Pengaruh C/N Rasio Berbeda untuk Pembentukan Bioflok pada Media Pemeliharaan terhadap Pertumbuhan dan Kelangsungan Hidup Benih Ikan Betok (Anabas testudineus) M. Indra Wahyu Pratama; Dade Jubaedah; Mohamad Amin
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 7 No. 1 (2018): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Pratama et al, 2018. The Effect of Different C/N Ratio in for Biofloc of Formation Culture Media to the Growth and Survival Rate of Juvenile Climbing Perch (Anabas testudineus). JLSO 7(1):66-73.Â Climbing perch fish resources still have a problem due to this fish is still obtained only through capture and also the growth of climbing perch fish is slow. The solutions to increase the growth of the climbing perch fish is by applying biofloc technology for climbing perch fish culture. The purpose of this research was to know the effect of different C/N ratio on the growth of climbing perch fish (Anabas testudineus) juvenille with biofloc farming system. This research used a completely randomized design consist of four treatments and three replications. The treatments were without molase (P0), molase with C/N ratio 15 (P1), C/N 20 (P2) and C/N ratio 25 (P3). The results showed that C / N ratio 20 was the best treatment with absolute length of growth of 1.33 cm, absolute growth of weight 1.92 g, survival rate of 99.17% and feed efficiency 138.06%.

Kelimpahan dan Pola Penyebaran Nematoda Entomopatogen sebagai Agensia Pengendali Serangga Hama pada Berbagai Lahan di Semarang Dyah Rini Indriyanti; Arini Dwi Hutami Pribasari; Desi Puspitarini; Priyantini Widiyaningrum
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 1 (2014)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

The soil was a place which plants and various organisms live. One of the soil organisms that plays an important role as agents of biological control of parasitic nematodes of insects, was known by entomopathogenic nematodes (ENPâ€™s). The aims of this research was analyzing the population density and patterns spread of the entomopathogenic nematodes on overgrown annuals land, overgrown perennial land, non-vegetation land and ranch land. The experimental design used in this study was a randomized design group. The technique of determining location using purposive sampling. Soil samples were taken at four location with eight replicates. The research was held in August-October 2013. The ENPâ€™s of land obtained by the technique of baiting using Tenebrio molitor. The result showed that ENPâ€™s population density was found from ranch land was 67.411 tail/mL. It was higher than the ENPâ€™s population density on non-vegetation land was 15.199 tail/mL. The statistics Mann Whitney showing absence of difference density of populations ENPâ€™s. A pattern to scatter nematode entomopathogen on some land widely distributed in clumped.

Akumulasi Logam Berat Zn dan Pb pada Sedimen, Akar dan Daun Mangrove Avicennia alba di Pulau Payung, Sumatera Selatan Ida Riyanti; Wike Ayu Eka Putri; Tengku Zia Ulqodry; Tiara Santeri
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 8 No. 2 (2019): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Riyanti I, Putri WAE, Ulqodry TZ, Santeri T. 2019. Accumulation of heavy metal Zn and Pb in sediment, root and leaves of mangrove Avicennia alba in Payung Island, South Sumatra. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands. 8(2):141-147.Â Various industrial activities or natural activity in the Musi River, might contribute to the heavy metals input in mangrove area of Payung Island. The purpose of this study was to analyze the concentration of Â heavy metals zinc (Zn) and lead (Pb) in sediment, root and leaves of mangrove A. alba. This research was conducted in January 2018. Analysis of heavy metal used Atomic Absorption Spectrophotometry (AAS). The results indicated that Zn concentration of sediment (13.35-22.61 mg/kg) and Pb (0.14-3.17 mg/kg), was still in quality standard level. Zn concentration in roots was 0.45-4.95 mg/kg and in leaf was Zn 2.46-12.76 mg/kg, while Pb on root and leaves was not detected. Â The value of BCF roots, leaf BCF and TF values were 0.15-0.24 ; 0.30-0.59 ; and 1.69-2.47, respectively. The results of this study indicated that mangrove A. alba in Payung Island as moderate accumulator plants category, and plants could transmit heavy metals effectively.

Studi Komparasi Fase Vegetatif Tanaman Utama Varietas Padi Berpotensi Ratun Tinggi di Lahan Pasang Surut Novisrayani Kesmayanti; Evriani Mareza
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 2 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Rice ratoon system is one solution constraints of tidal rice fields, particularly the season and limitations of agricultural inputs. The ratoonâ€™s quality highly dependent on the quality of main cropâ€™s vegetative phase. The main crop with maximum vegetative phase, is predicted to produce high growth of ratoon. This study is the second phase of the three experimental stages of multi-year research of hibah bersaing. The first phase of the experiment (September 2013-May 2014) aims to give the height of singgangâ€™s cutting to increase vigor vegetative and reproductive phase of ratoon in tidal land. This experiment is to obtain adaptive rice varieties with high potentially of ratoon in tidal rice fields. This experiment used a randomized block design factors, namely rice varieties (Sintanur, Margasari, Mekongga and Batanghari), with three replications, ongoing since March 2014-September 2014, located in experimental farm of Faculty of Agriculture, IBA University, in Palembang. Each treatment consists of 18 units of plant, so totaly contained 216 experimental units. Rice plants grown in soil media of tidal rice fields that brought from Telang Sari village, Tanjung Lago district, Banyu Asin regency, South Sumatera. The vegetative parameters consist plant height, panicle height, number of tillers, number of productive tillers, chlorophyl, flag leaf area and leaf area. The results indicate that the vegetative phase of Sintanur is the best, measured by plant height and panicle being, number of tillers and productive tillers highest, and flag leaf area and the largest leaf area. This experimental results imply that the quality of growth and vigor of Sintanurâ€™s ratoon would be better than Margasari, Mekongga and Batanghari.

Dinamika Beberapa Sifat Fisika Tanah Dibawah Sistem Usahatani Konservasi Pada Lahan Kritis Aripan Di DTA Singkarak Aprisal Aprisal; Bujang Rusman; Indra Dwipa; Refdinal Refdinal; Erlina Rahmayuni; Fajriwandi Fajriwandi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 5 No. 2 (2016): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.5.2.2016.256

Aprisal. et al.Â Dynamics of Some Physical Properties of Soils Under Conservation Farming System on the Critical Land Aripan in the DTA Singkarak. JLSO 5(2):137-144.The conservation farming on critical land can improve the soil properties and maintantain for a periode of time. The purpose of this research is to study the dynamics of critical landâ€™s physical characteristics under the influence of conservation farming at Singkarak Water Catchment Area (DTA) in Nagari Aripan. The analysis of soil sample is conducted in Soil Science Department Laboratory, Faculty of Agriculture, Andalas University. This research is designed with Split Plot Design (RPT). The main plot is a soil processing system which is: conventional soil processing (po), soil processing with mulch (p1), soil processing with compost and manure (p2) and minimum soil processing (p3), while the sub plot consists of three types of plants, they are; sweet corn (t1), soy bean (t2) and peanut (p3). Each treatment is repeated three times. Result of the research is observation data in each season of the first, second and third year. To see the dynamics of soil characteristics, data of each season is viewed through graphic which based on its trend. The result of the research indicates that utilization of critical land with conservation farming system could repair and maintain some physical characteristics of soil in each growing season, such as: decreasing volume, increasing soil organic matter, porosity, and soil permeability. Productivity of soil increases on the conventional processing with mulch, compost, and manure. Conventional soil processing with added compost and manure increases productivity for 32.58% in the first year, 45.16% in the second year, and 59.73% in the third year.

In-situ Evaluation of Growth Rate and Yield Components of Several Non-tidal Swamp Rice Accessions in South Sumatera Entis Sutisna Halimi; Rujito Agus Suwignyo; Mery Hasmeda; I. Rahmawati
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 2 (2012)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Halimi et al. 2012.Â In-situ Evaluation of Growth Rate and Yield Components of Â Several Non-tidal Swamp Rice Accessions in South Sumatera. JLSO 1(2):107-115Rapid increase of agricultural land conversion has led to the intensified utilization of Â non-tidal swamp. The objective of this research was to identify growth rate and yield components of several rice accessions of non-tidal lowland swamp of South Sumatera. This research incorporated the cultivation of nine rice accessionsÂ inÂ non-tidal swamp area. Research plots were preparedÂ by local farmers to include Â 27 plots of 280 cm x 80 cm following the Complete Â Randomized Block Design.Â Research indicated that rice accessions might be classified into 3 groups of Low Growth Rate (LGRA), Intermediate Growth Rate (IGRA), and High Growth Rate (HGRA) accessions.Â Each group has different growth rate according to the field water level during flooding season of < 5 cm, 5 to 6 cm, and >6 cmÂ per week, respectively. The LGRA group consisted ofÂ Petek (A5) and Senia (A6), the IGRA group consisted of Bone (A1), Pelita Rampak (A2), and SawoÂ Rimbo (A7) and the HGRA group consisted of Kuning (A3), Siam (A4), Sawah Beling (A8) and Putih Olak (A9). Some yield components tended to decrease as the growth rate increased, and some varied depending on the accessions. For effective and efficient cultivation, farmers should apparently consider growth rate and yield potential to decide which rice accessions to grow.

Pertumbuhan Bibit Acacia crassicarpa dengan Pemberian Bokashi dari Beberapa Bahan Utama Ali Martinus
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Martinus et al, 2017. Acacia crassicarpa Seedling Growth with Bokashi from Variety Ingredient. JLSO 6(2):185-191.The provision of nutrients for plants in HTI (Plantations Industries), especially at the time of seeding, can be done with the addition of organic and inorganic fertilizers. Inorganic fertilizers can provide nutrients quickly. However, if this is done continuously will cause the soil damages. Meanwhile, although organic fertilizers provide slow nutrient, it can be improve physical and chemical soil. One kind of organic fertilizer is Bokashi., Bokashi compost is produced from the fermentation process. This study aims to determine the effect of variety ingredient of Bokashi as nursery media makers onÂ A.crassicarpa seedling growth. This trial uses design complete randomized design (RCD), with four replications and 7 treatments. Treatments include (A) NPK, (B) Kumpai, (C) Desmodium, (D) Salvinia (E) A. Crassicarpa, (F) A. Mangium, (G) E. pellita. The experimental results showed that the main ingredient kiambang bakashi giving a better effect on the growth of A. crassicarpa in the nursery than kumpai, Desmodium, leaf litter A. mangium, A. crassicarpa, E. pellita and control (NPK).

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Sabri Sudirman

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