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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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Sifat Fisikokimia Zat Pewarna dari Bunga Eceng Gondok (Eichhornia crassipes) yang Diekstrak dengan Metode Microwave Asissted Extraction (MAE) Merynda Indriyani Syafutri; Filli Pratama; Gading Putra Yanda
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 8 No. 1 (2019): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.472 KB) | DOI: 10.33230/JLSO.8.1.2019.417

Abstract

Syafutri et al, 2019. Physicochemical Properties of Colorant from Water Hyacinth Flower (Eichhornia crassipes) Extracted by Microwave Assisted Extraction (MAE) Method. JLSO 8(1):94-106.The objective of this research was to determine the effect of oven microwave power and extraction time on color intensity, anthocyanin stability, and antioxidant activity of colorant from water hyacinth flower (Eichhornia crassipes) extracted by microwave assisted extraction (MAE) method. The research was conducted at Agricultural Product Chemical Laboratory, Agricultural Technology Department, Faculty of Agriculture, Sriwijaya University. The experiment used a Factorial Completely Randomized Design with two factors and each treatment was repeated three times.  The first factor was oven microwave power (100 watts and 300 watts) and the second factor was extraction time in oven microwave (1 minute, 2 minutes, and 3 minutes). The parameters were color intensity, anthocyanin stability, and antioxidant activity. The results showed that the oven microwave power and extraction time had significant effects on color intensity and antioxidant activity. The increasing of oven microwave power and extraction time increased a* value and antioxidant activity, and decreased b* value, significantly. The result also showed that the anthocyanin compounds was not stable with heating up to 105°C.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (583.641 KB) | DOI: 10.33230/JLSO.4.1.2015.148

Abstract

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%.
Analisis Kelayakan Usahatani Kelapa Dalam Migran Jawa Di Lahan Pasang Surut Provinsi Sumatera Selatan Yudhi Zuriah Wirya Purba
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 5 No. 1 (2016): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (583.678 KB) | DOI: 10.33230/JLSO.5.1.2016.237

Abstract

Purba et al, 2016. Feasibility Analysis of  Coconut Farming Java Migran in Tidal Land District of South Sumatra Province. JLSO 5(1):95-104.This study aims to calculate the production cost incurred, income received from coconut farming and analyze the feasibility of coconut farming by Javanesse migrants on tidal land of the Sungai Semut village, District of Makarti Jaya, Banyuasin Regency. The research methods being conducted is survey and the sampling method is simple random sampling, and the number of samples taken are 15 farmers from entire 160 of the population. The results shown that the average production cost number spent in coconut farming is Rp 3.687.512,00, meanwhile the average income earned is Rp 11.282.488,00 for each production process.  Financially, the results of analysis shown that with the NPV atRp 14.378.857,00 hence the value of IRR is 22,98 percents  and the value of Net B/C 1,65 that means the coconut farming is feasible to be implemented.
Dosmestikasi Ikan Gabus, Channa Striata Blkr, Upaya Optimalisasi Perairan Rawa Di Provinsi Kalimantan Selatan Untung Bijaksana
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 1 (2012)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (464.206 KB) | DOI: 10.33230/JLSO.1.1.2012.12

Abstract

Bijaksana, U. 2012. Snakehead Domestication, Channa Striata Blkr, Swamp Water Optimization Efforts in South Kalimantan Province. J. Lahan Suboptimal 1(1):92-101.This research aimed at domesticating snakehead in order to fulfill the consumption without relying on catch. This research was conducted in the Wet Laboratory of the Department of Aquaculture Faculty of Fisheries Banjarbaru from September to October 2006. Snakeheads caught in "beje 'were selected according to weight and size and then kept in concrete tanks. A total of 32 pairs were placed in the experimental tanks.Feed was served as much as 4% of bodyweight/day for 4 times/day. Observations were made at the beginning and end of the experiment which included concentration of E2, egg diameter, IGS, IHS and fecundity. The results obtained were as the followings: water enhancement was associated with the development of the IGS with r2 = 0.92 which was greater than that of the decrease in water with r2=0.55.Greater reduction in water was associated with IHS with r2=0.96 which was greater then that of raising the water with  r2 only 0.74. Increase of water associated with the concentration of estradiol-17 beta with r2=0.82 was greater than that of the decrease of water which was was only 0.55.The decline and rise of water were aasociated with the diameter of each egg with the r2=0.93 and 0.96. Enhancement of water associated with agreater effect on fecundity with the r2=0.74 while decreasing water with the r2=0.36. Several indicators of snakehead reproduction obtained from the experiment were found to be similar with those naturally occured. It was concluded that the snakehead’s gonad could be grown to reach maturity level in the container as a domestication process.
Kajian Adaptasi Beberapa Varietas Padi Pada Dua Tipologi Lahan di Sulawesi Tengah Syafruddin Syafruddin; Andi Irmadamayanti; Saidah Saidah
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1210.978 KB) | DOI: 10.33230/JLSO.6.2.2017.296

Abstract

Syafruddin et al, 2017. Study on Adaptation of Rice Varieties to Two Typical Lands in Central Sulawesi. JLSO 6(2):158-169. New paddy and rainfed rice fields have been potential resources in supporting sustainable rice self sufficiency. Improvemet on cultivation of adaptable varieties and good fertilization on the lands could increase production and land productivity.  This research aimed to findout new varieties adaptable to the typical lands with high yield.  The research was designed as randomized block design.  The treatments consisted of tree superior varieties and one ekxisting variety.  The results show that the areas are mainly less fertile with restriction factors: low in phosporus, low in organic content but high in iron.  The crop respons are mainly excellent to both types of the land in Poso and Donggala Regencies.  Banyuasin varietiety gave the highest production at both locations resulting in 9,13-9,27 tons/ha, followed by Mendawak and the existing varieties (Ciomas and Ciherang).  The results increased harvest up to 2,32-9,93 tons/ha compared to those cropped with Inpara 3.  The results also show that Banyuasin and the existing varieties are more adaptable and stable to both land types.  Based on suitability evaluation, the farms are grouped into suitable with B/C ratio 1,60-3,57 compared to Inpara 3 with B/C ratio 1,01- 1,59.
Pengaturan Aplikasi Pupuk Nitrogen Untuk Meningkatkan Toleransi dan Pemulihan Tanaman Padi Terhadap Cekaman Terendam Gribaldi Gribaldi; Rujito A. Suwignyo; Merry Hasmeda; Renih Hayati
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 2 (2013)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (454.09 KB) | DOI: 10.33230/JLSO.2.2.2013.57

Abstract

The influence of global climate to the Indonesian climate condition has been in serious condition which was already in high intensity. Flood becomes the fenomena in almost all area in Indonesia. In a swamp area, it can obstruct rice plant cultivation. The submerged rice plant create the obstruction of the rice plant photosynthesis and stress after being submerged. So that  an effort is needed to increase  its tolerance and recovery in order the reduction of the unhulled crop can be reduced.   This study was aimed to obtain a method to increase rice stage is vegetative  tolerance and recovery to submergence stress through the arrangement of nitrogen fertilizer aplication and rice variety.  The experimental design used was factorial completely randomized design with six replications. The factor consists of rice varieties (Inpara 3, Inpara 5, IR 64) and  treatment (P): P1: no submergence, all N dosage prior planting; P2: submerged (7-14 DAP), all N dosage prior planting; P3: submerged (7-14 DAP), all N dosage prior planting + (Si+Zn); P4: submerged (7-14 DAP), ½ N dosage prior planting + ½ N dosage 42 DAP + (Si+Zn); P5: submerged (7-14 DAP and 28-35 DAP), all N dosage prior planting; P6: submerged (7-14 DAP and 28-35 DAP), all N dosage prior planting + (Si+Zn); P7:  submerged (7-14 DAP and 28-35 DAP), ½ N dosage prior planting + ½ N dosage 42 DAP + (Si+Zn). The results showed that the arrangement of nitrogen fertilizer application before submerged to rice plant can increase the rice plant tolerance and recovery to the submerged stress.  The increasing of tolerance and recovery can be obtained at the rice variety given ½ N dosage prior planting + ½ N dosage 42 DAP + (Si+Zn).
Populasi Serangga Hama dan Artropoda Predator pada Padi Rawa Lebak Sumatera Selatan yang Diaplikasikan Bioinsektisida dari Beauveria bassiana dan Insektisida Sintetik Khoirul Ikhsanudin Hanif; Siti Herlinda; Chandra Irsan; Tili Karenina; Erise Anggraini; Suwandi Suwandi; Susilawati Susilawati
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 8 No. 1 (2019): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (505.028 KB) | DOI: 10.33230/JLSO.8.1.2019.378

Abstract

Hanif et al, 2019. Population of Pest Insects and Predatory Arthropods Inhabiting Freshwater Swamp Rice of South Sumatra Treated with Bioinsectide of Beauveria bassiana and a Synthetic Insecticide. JLSO (8)1:31-38.Entomopathogenic fungi, Beauveria bassiana, could  kill various species of insect pests, but  their impact on predatory arthropods needs to be studied. The aim of this study was to compare population of pest insects and predatory arthropods inhabiting rice sprayed with bioinsecticide of B. bassiana and conventional rice field using a synthetic insecticides. Bioinsecticide was made from conidia of B. bassiana and sprayed on rice canopy. The plot of conventional farmers was sprayed with synthetic insecticides made from Abamektrin. The results showed that the application of bioinsecticide of B. bassiana was not proven to reduce the pest insect population. The abundance of natural enemies of pest insects, such as  spiders and predatory insects was also more abundant in plots sprayed with  bioinsecticide than conventional plots that used synthetic insecticide. The synthetic insecticides have been shown to reduce the abundance of predatory insects and spiders. Bioinsecticides containing carrier of  liquid compost were proven to increase the growth and development of rice, which was an increase in the number of rice tillers per clump in plots applied by bioinsecticide. Thus, B. bassiana of bioinsecticide with liquid compost carrier material was safer and could maintain the abundance of predatory arthropods and increased rice growth.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (474.557 KB) | DOI: 10.33230/JLSO.4.1.2015.139

Abstract

This study aims to analyze the determinant factors of paddy farm household’s economic behavior, specifically influence the productive activities, that is paddy production and income, family labor allocation and farm household expenditure to achieve their family’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 Sumatera 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 farmer’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
Pengaruh Perendamandan Pemupukan N Terhadap Pertumbuhan dan Produksi Padi Toleran Rendaman Ikhwani Ikhwani
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 1 (2012)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (658.668 KB) | DOI: 10.33230/JLSO.1.1.2012.4

Abstract

Ikhwani, 2012. The Effect of Submergence and N fertilizer Application on Plant Growth and Production of  Submerged Tolerant Rice Variety. JLSO 1(1):12-21.This study aimed at analyzing the effect of submergence and N fertilizer application on the plant growth and production of submergence tolerant rice variety. Problems and constrains of  rice production on flood prone and flash flood lowlandbecoming more frequents and more intens, causing submergence of the whole parts of rice crops for certain periods. The experiment was conducted to determine the effect of submergence and N fertilizer application on the growth of two treatment factors using block randomized design  with submergence tolerant variety Inpara 4 and 5.   An experiment was conducted in the greenhouse at Muara Experimental Station, Bogor in 2009. The treatments  consistedof three replications. The first factor was submergence rice variety Inpara 4 and 5 and the second factor was N management application, whereas (1) 200 kg Urea/ha, (2) 300 kg Urea/ha;  (3) 300 kg Ponska/ha + 100 kg Urea/ha; (4) 400 kg Ponska/ha (2x); (5) Briquette Urea  (300 kg Urea/ha) dan (6) 300 kg Urea/ha  +  Silikat (400 kg SiPPadi HS/ha).  Result of the experiment showed that   submergence for 14 to 24 DAP (10 days) on submergence tolerant rice variety combined with Briquette Urea (300 kg urea/ha  wrapped in strawpaper)  has increased the percentage of tiller number up to 98,9 percent , increased the highest total grain weight  for submergence tolerant rice  up to 41,2 gr per pot and increased in the proportion of  wet leave weight growth rate for  submersion treatment up to 1,4g per pot than that  without submergence. 
Pengembangan Teknologi Untuk Pengelolaan Lahan Rawa Pasang Surut Berkelanjutan Ani Susilawati; Erwan Wahyudi; Nurimdah Minsyah
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 1 (2017): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (496.461 KB) | DOI: 10.33230/JLSO.6.1.2017.295

Abstract

Susilawati et a, 2017. Technology Development for Sustainable Tidal Swamp Land Management. JLSO 6(1):87-94.Tidal land is very potential to be developed as food gardens and agriculture of the future of Indonesia considering (1) productivity is still low, (2) potential land is still wide, (3) indices of plantation (IP) is still low, (4) degraded land potential , (5) the pattern of food production in tidal land is complementary to the pattern of food production in Java, (6) the competition for land use for non-agricultural purposes is relatively low, and (7) the availability of production technology of various commodities. Tidal land is an area whose water availability is affected by the movement of water on the surface of the river due to the movement of the moon, the land is included in the sub-optimal land category, ie the land that has many problems and needs to be overcome in order to provide benefits. The problems are water problems and soil chemical characteristics that have not provided maximum support for agricultural cultivation system. Therefore, priority should be given to technological development that is technically relevant to the characteristics of the land, economically affordable to local farmers, and expected to be in tune with the preferences and socio-cultural of local communities. Two approaches that can be parallel and interactively carried out are [1] optimizing the physical, chemical, and (micro) properties of soil biology along with optimizing the management of water resources to be eff ective and more efficient; and [2] appropriate selection of commodity types and development of adaptively specific varieties for each suboptimal land characteristic.

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