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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.

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Articles 12 Documents

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Search results for , issue "Vol. 4 No. 1 (2015): JLSO" : 12 Documents clear

Diversitas Gulma pada Budidaya Padi dan Jagung di Lahan Pasang Surut Desa Banyu Urip Kecamatan Tanjung Lago Karlin Agustina; Yursida Yursida
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

The experiment about Diversity of weeds on rice and maize cultivation in the tidal-land Banyu Urip village subdistrict Tanjung Lago was conducted from November 2013 until Desember 2013. The purpose of the experiment is determinate the dominant weed species in cultivation of rice and maize in the tidal-land, to evaluate the results of weed control, and can be a basic weed control recommendations. The method used is squared method. The results showed that the dominant weeds in rice crops with highests sum dominance ratio (SDR) is: Ludwigia octovalvis, Fymbristilis littoralis, Alternanthera philoxeroides and Cyperus kylingia. Dominant species in maize planting is: Alternanthera phyloxeroides, Paspalum conjugatum, Borreria alata, and Euphorbia hirta. The use of a single active ingredient â€œisopropylamine â€“ glifosatâ€ in weed control in the tidal-land have not been able to effectively control weeds both broadleaf weeds, puzzles or grass. Mechanical methods of weed control on weeds with stoloniferous will increasingly dominant weed.

Penurunan Kadar Besi dan Mangan Terlarut dalam Air Payau Melalui Proses Oksidasi Menggunakan Kalium Permanganat J.M. Amin; D.P. Sari
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

The main objective of this research is to reduce the content of iron and manganese dissolved in brackish water as part of the treatment process into clean water. In the early stages, brackish water was coagulated and sediment using PAC 150 ppm. The water is then sent to the unit with KMnO4 oxidation accompanied by stirring. KMnO4 concentration varied three types namely 3.5 ppm, 4.5 ppm, 5.5 ppm. Water analysis is carried out on the raw water and any results of coagulation and sedimentation, until the result of oxidation. Based on the experiments, the best results obtained from using KMnO4 oxidation of 4.5 ppm to lower the Fe content of 1.43 ppm to 0.28 ppm and lower levels of Mn from 0.35 ppm to 0.15 ppm. Coagulation and sedimentation process was instrumental in improving the quality of brackish water, especially in color, taste, pH, and dissolved solids turbidity eligible clean water. Coagulation and sedimentation are also less able to reduce levels of dissolved Fe and Mn. Two stages of treatment (coagulation and sedimentation and oxidation) has been successfully boost water quality and filtration will ease the workload on subsequent processing stages

Fitoekstrasi Merkuri dari Tanah Tercemar Limbah Tambang Emas Skala Kecil dan Pengaruhnya pada Pertumbuhan Tanaman Jagung Nurul Muddarisna; B.D. Krisnayanti; E. Handayanto
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

In West Lombok, gold amalgamation tailings are commonly discharged to agricultural lands resulting in reduced maize yield in the area. Phytoremediation can represent a low-cost alternative to traditional techniques such as soil removal. This study was aimed to elucidate the potential of Lindernia crustacea (L.) F., Paspalum conjugatum L., and Cyperus kyllingia Endl., for phytoremediation of mercury-contaminated soils in conjunction with the ammonium thiosulphate to phytoextract mercury and its effect on maize growth. Each of the plant seedlings was planted in a plastic pot containing 15 kg of mercury-contaminated soil for 9 weeks. Treatments tested were three plant species), and two rates of ammonium thiosulphate application, i.e. 0 and 8 g / kg of soil. Ammonium thiosulphate was applied one week before harvesting the plants. At harvest (9 weeks) shoots and roots were analyzed for mercury concentration. The remaining soils in the pots were used to grow maize for 8 weeks. The results showed that on average, the addition of ammonium thiosulphate increased the accumulation of mercury in plant shoots and roots by 82% and 47%, respectively, compared to the media without addition of ammonium thiosulphate. In comparison to the control treatment, the average increase of dry weight of maize (shoot+root) grown on media previously remediated with three plant species with addition of ammonium thiosulphate was 40%, while that grown on media previously remediated with three plant species without addition of ammonium thiosulphate was 62%.

The Economic Behavior of Paddy Farm Household in Suboptimal Land (Case in Pemulutan Area, Ogan Ilir Regency, South Sumatera Province) Laila Husin
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

This study aims to analyze the determinant factors of paddy farm householdâ€™s economic behavior, specifically influence the productive activities, that is paddy production and income, family labor allocation and farm household expenditure to achieve their familyâ€™s food security. This research used cross section data, where 90 paddy farm households (3 villages) as sample in Pemulutan area, Ogan Ilir Regency, South SumateraÂ Province, and analyzed by descriptive and econometric tecnics. The estimation of econometric model (the simultaneous equations) used two stages least squares (2SLS) method. The result of this study showed that most respondents have some income sources (from paddy farm, non-paddy farm and off farm activities). The average paddy production is relatively low (3.937 tons/ha), the average tillage paddy area is around one hectare and the dried paddy price around Rp 3 to 3.8 thousands per kg. This paddy farm is the main source income (Rp9,844,509 or around US$ 871 per hectare per year ). The other income sources from non paddy farm income (Rp662,560), off farm income (Rp328,389) and non working earning (Rp169,444). On average, the total family income (Rp14,304,898 per year) was higher than total family expenditure (Rp12,47,427), where for food is Rp9,156,394 (68.21%) is higher than for non food consumption is Rp3,691,033 (31.79 %), thus the paddy farm household in this area can make saving around Rp1,453,581 (9.70% from total family income). The highest farm household time allocation is for paddy farming activity (around 50.00 %). The behavior of farm household working time is affected by faddy farm land area, paddy farm income, non farm income and farmerâ€™s age. The behavior of household production is influenced by farm land area, the allocation of family labor on the paddy farm and the cost of paddy farming. The behavior of household consumption is affected by total household income and the number of household member. These paddy farm household behavior as adaptation to the climate change in this area, however they still can achieve their food security through fulfilling their primary needs

Kajian Teknologi Mina Padi di Rawa Lebak di Kabupaten Batanghari Provinsi Jambi Julistia Bobihoe; Nur Asni; Endrizal Endrizal
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Mina rice is a technology that combines fish farming with rice cultivation. This system has several advantages such as: farmers will get additional income from fish without reducing the incomes of rice, increasing rice production, improve efficiency and productivity of the land, the rice plants become more controlled and meet the needs of animal protein. The assessment carried out by an integrated crop management (ICM) lowland swamp rice. The assessment was conducted in the village of Rantau Kapas Tuo District Muaro Tembesi Batanghari regency of Jambi Province in April and August 2012. The assessment aims to determine the level of growth and yield of rice and fish on rice farming mina. Assessment carried out on two hectares of land by applying some technology components include: the selection of fish seed, nursery, land preparation, manufacture caren/trench planting rice, fish stocking, fertilization, water management, fertilization, weeding, maintenance of fish, control crop pests and diseases. New varieties (VUB) rice used is Inpara 3 seed and fish used is Tilapia. The study showed that rice production is 6.85 t/ha and survival rate of fish was 75%. The assessment is seen that by applying mina rice cultivation with rice integrated crop management (ICM) earned income of Rp 14.11 million (B/C ratio 1.1) and the non ICM and an income of Rp 2.485 million (B/C Ratio 0.4).

Desain Petak Sawah Rawa Lebak Pematang untuk Pembudidayaan Padi-Ikan Dian Septi Hastuti; Edward Saleh; Hilda Agustina
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

The research objective was to develop the design of paddy field plot in ridge lowland swamp for rice-fish cultivation. The method used in this study was descriptive in form of data collecting through direct field observation and from related institutions. The water balance and water pond dimension were mathematically calculated and the results would be compared to water balance from field observation. The observed parameters were effective rainfall, height of water table, crop water requirement, infiltration, percolation, evaporation, water pond dimension and paddy field plot size. The results showed that maximum storage volume of pond that was required to fulfill irrigation water requirement for rice plants as well as for fish cultivation was 44.2 mÂ³/month. Dimension of designed pond had length of 18.48 m, width of 2.4 m and depth of 1 m.

Kajian Teknik Pemberian Hara Terhadap Pertumbuhan dan Perkembangan Nepenthes mirabilis Mardhiana Mardhiana; Yakup Parto; Renih Hayati; Dwi Putro Priadi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

The objective of this research was to study the effect of nutrient fertilization on the growth and development of nepenthes (Nepenthes mirabilis). The research was conducted from October 2011 until March 2012 at Sukarami village, Palembang, Indonesia. Factorial randomized block design with two treatment factors was applied. The first factor was NPK fertilizer dosage which consisted of three levels: Po = no fertilizer, P1 = 5 g, P2 = 10 g. The second factor was number of ants: S0 = none, S1 = 20, S2 = 40, S3 = 60. The results indicated that NPK fertilizer application of 5-10 g to the planting media could increase plant growth and development, particularly in plant height, stem girth, and leaf number of N. mirabilis. Giving 60 ants per plants into nepenthes pitcher could yield the largest pitcher number, 3-4 pitcher per plant. Combination of 5 g NPK and 20 ants, similarly, combination of 10 g NPK and 0 ants resulted in the largest leaf increment (10-11 leaves). Combination of 0 NPK and 60 ants resulted in the largest pitcher number (3-4 pitcher per plant).

Peningkatan Nilai Tambah Jagung dari Lahan Suboptimal dengan Mengolah menjadi Nasi Jagung Instan dengan Aplikasi Rehidrasi dan Penambahan Air pada Tepung Jagung Sugito Sugito; Merynda Indriyani Syafutri; Friska Syaiful; Risbin W. Hutabarat
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Corn plant is suitable to cultivate on suboptimal land due to itâ€™s resistance to acid and dry soil. The objective of the research was to determine the effect of time soaking corn kernels and addition of water to corn flour on characteristics of instant corn rice. Corn that is used is from the farmers of Arisanjaya village (the area of suboptimal land agriculture). The research used a Factorial Completely Randomized Design with two treatment factors and three replications. The observed treatment factor was soaking time (A1: 6 hours, A2: 12 hours, A3: 24 hours) and the addition of water (B1: 80%, B2: 90%, B3: 100%). Observed parameters were physical (color, texture and length of serving), chemical (moisture, ash) and sensory characteristics with hedonic test (texture, color and flavor). The results showed that the soaking time had significant effect on lightness, chroma and ash content of instant corn rice. The addition water had significant effect on the chroma of instant corn rice. The interaction between the soaking time and addition of water had significant effect on the chroma of instant corn rice. The treatment A1B3 (6 hour soaking time and the addition of water 100%) was the best treatment with the average color values (49.77% lightness, 21.40% chroma, 65.200 hue), 76.73 gf cooked corn rice texture, 9.67 minute length of serving, 4.36% moisture content, 1,01 % ash content, the average value of hedonic test (2.20 texture, 2.56 color, and 1.88 flavor).

Pendeteksian Ketinggian Air di Lahan Basah Memakai Teknologi Radio Frequency Identification (RFID) dalam Upaya Memonitor Ketersediaan Air untuk Persawahan di Area Pasang Surut Irwin Bizzy
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Indonesia has quite a lot of scattered wetlands in Sumatra, Borneo, and Papua so that it takes the right technology development to optimize the use of agricultural wetlands for welfare. Tidal wetlands will determine the success of the harvest of food crops, sometimes the tide caused the death of crops due to the amount of water beyond the plant it self or otherwise drought. A technology Radio Frequency Identificationor RFID is one way to monitor water levels in wetlands remotely using radiowaves. This technology is an automate detection system with information technology and communication devices without cables consisting of RFID, reader signal, and a computer. Reader will send signals to RFID to identify or communicate to move the data and will be responded to by the software installed in the computer. The software will immediately respond to convert the data that informed and also to filter or delete data that is not desirable. The data on wetland water level can be monitored as a function of time and recorded in the computer, making it easier to collect these data. These data will be used in planning for the time of planting and crops adapted to the conditions of water throughout the year. It is expected that increase in crop yields in the wetland have ups and downs throughout the year with the availability of accurate data on the water level every season throughout the year

Produksi Tanaman Jagung (Zea mays L.) pada Berbagai Jarak Tanam di Tanah Ultisol Ardi Asroh; Nurlaili Nurlaili; Fahrulrozi Fahrulrozi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Maize is cultivated not only as producer but also as a seed of green fodder. Increasedcorn needs according to population growth and the increasing need for animal feed, inwhich 52.4% of the feed is from cron. This study aimed to determine the effect of plantingdistance on the production of hybrid corn plants bisi-2. This study used a randomizedblock design experiment (RAK) are arranged in groups and comprise 1 to 3 treatmentfactors, namely: J1 (50 x 20 cm), J2 (50 x 40 cm), A3 (50 x 60 cm) and 5 replications.Planting the drill is done by using the spacing of the rows in each treatment, the seed isinserted into the planting hole as much as 2 seeds per hole. The results of the study givinga spacing significantly affected maize crop production parameter dry weight of plants, cobwet weight, dry weight and pith. Giving a spacing of 50 cm x 40 cm can not increase theproduction of corn. Giving a spacing of 50 cm x 60 cm gives the best effect on theproduction of corn.

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Home Page

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Contact Name Sabri Sudirman

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Contact Name
Sabri Sudirman

Contact Email
sabrisudirman@unsri.ac.id

Phone
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Journal Mail Official
jlsuboptimal@unsri.ac.id

Editorial Address
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Location
Kab. ogan ilir,

Sumatera selatan

INDONESIA