Jurnal Lahan Suboptimal
Published by Universitas Sriwijaya
ISSN : 22526188     EISSN : 23023015
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.
Articles 12 Documents
Search results for , issue " Vol 7, No 2 (2018): JLSO" : 12 Documents clear
Uji Kisaran Inang Penyakit Downy Mildew (Pseudoperonospora cubensis) dan Antraknosa (Colletotrichum Sp.) pada Beberapa Tanaman Cucurbitaceae Anggraini, Erise; Muslim, A.; Zuriana, Azizah; Irsan, Chandra; Gunawan, Bambang
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 2 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (913.245 KB) | DOI: 10.33230/JLSO.7.2.2018.368

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Anggraini et al, 2018. Host-Range Analysis of Downy Mildew (Pseudoperonospora cubensis) and Anthracnose (Colletotrichum Sp.) on some Cucurbitaceae Plants. JLSO 7(2):213-224. Inhibiting factors of cucumber cultivation is Downy mildew disease that is caused by Pseudoperonospora cubensis and Anthracnose by Colletotrichum sp. The objective of this research was to observe pathogenicity of activity caused by Pseudoperonospora cubensis and Colletotrichum sp. isolated from cucumber towards Cucurbitaceae plants. The research was conducted at greenhouse and Phytopathology Laboratory, Department of Plant Pests and Diseases Faculty of Agriculture, University of Sriwijaya in September to December 2016. This study used Randomized Block Design (RBD), with four types of plants, 2 treatments and 4 replications. The results showed that the incubation period of the plant inoculation Downy mildew by Pseudoperonospora cubensis range between 4.5-5.0 days. Result of broadest spot area was on melon leaf 2.05 cm2 with the chlorophyll content of 0.4928 mg/g and the lowest result was on cucumber leaf 0.90 cm with the chlorophyll content of 0.7628 mg/g. While the results showed that the incubation period of the applied plant pathogen Colletotrichum sp. ranging from 3.0-4.5 days. Result of broadest spot area was on melon leaf 4.00 cm2 with the chlorophyll content of 0.3932 mg/g and the lowest result was on cucumber leaf 2.42 cm2 with the chlorophyll content of 0.7588 mg/g.
Evaluasi Kualitas Fisik dan Uji Palatabilitas Ransum Berbasis Rumput Kumpai Tembaga (Hymenachne acutigluma) Melalui Kombinasi Lumpur Sawit dan Daun Ubi Kayu Riswandi, Riswandi; Hamzah, Basuni; Wijaya, Agus; Abrar, Arfan; Akbar, M. Reski Valian
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 2 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (567.102 KB) | DOI: 10.33230/JLSO.7.2.2018.355

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Riswandi et al, 2018. Physical Quality Evaluation and Palatability of (Hymenachne acutigluma) through Combination of Palm Oil and Cassava Leaves. JLSO 7(2):204-212. The aim of this study to investigate the physical quality and palatability based feed Hymenachne acutigluma which is combine cassava leaves and palm oil as animal feed.  This reseach   was done in 3 months in Cattle Nutrition and Feed Laboratory and Livestock Experiment Studies Program Faculty of Agriculture, University of Sriwijaya.  This reseach used completely randomazed design method with 4 treatments and 4 replications.  The treatment consisted of R0 (85% Hymenachne acutigluma + 15% concretate), R1 (55% Hymenachne acutigluma + 30% cassava leaves + 15% concrentate), R2 (55% Hymenachne acutigluma + 30% palm oil + 15% concentrate), R3 (55% Hymenachne acutigluma + 15% cassava leaves + 15% palm oil + 15% concentrate).  The observed variabels are smell, water ration, density and palatability of feed consisted.  The results showed thet the treatment had significant effect (P<0.05) on density of the ration and had no significant effect (P>0.05) on the smell and the water content of the feed.  The result of the palatability rations show thet the treatment of R1 is the most favored by the livestock.  The conclusion of this reseach is indicate that the combination 55% Hymenachne acutigluma + 30% cassava leaves + 15% concrentate can improve the physical quality and palatability. 
Efektifitas Pertumbuhan Benih Betok (Anabas testudineus) Menggunakan Vitamin C dan D sebagai Suplemen Pakan Helmizuryani, Helmizuryani; Puspitasari, Meika; Khotimah, Khusnul
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 2 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (529.297 KB) | DOI: 10.33230/JLSO.7.2.2018.327

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Helmizuryani et al, 2018. Growth Effectivity of Climbing Perch (Anabas testudineus) Used Vitamin C and D as Feed Suplement. JLSO 7(2):164-173. The added of vitamin in feed is expected to increase the feed efficiency ,growth and survival of climbing perch (Anabas testudineus). This research was conducted to analysis the effectivity of vitamin supplement to increased the growth and survival of climbing perch (Anabas testudineus). The method used was an experimental method, with Completely Randomized Design (CRD), and three levels of treatment. The research carried out at Fish Hatchery Unit named Mulia on Plaju district, Palembang city. It's started from March until May 2018. The treatment used vitamin C and D gives the doses differentiation, that were V1 (doses of vitamin C 125 mg/kg feed), V2 (doses of vitamin D 375 mg/kg feed), and V3 (doses of vitamin C + D 125 mg/kg feed and 375 mg/kg feed). The growth analysis parameter was the growth of length, weight, and survival rate. The results that showed the best growth and survival of climbing perch (Anabas testudineus) were vitamin D and C, where best mass on V3 about 3,89 g. While the lowest on V1 about 2,7g. The best growth length on V3 about 4,61 cm, otherwise the weakest on V1 about 3,85 cm. The survival rate was highest on V3 about 88,33% and the lowest on V2 about 83,33%. Vitamin required for a fish body to carry out metabolism, but if overuses could be hipervitaminosis. 
Pojale (Ketela Pohon Jagung dan Kedelai) sebagai Bahan Pengembangan Beras Analog Pengendali Kegemukan Sukamto, Sukamto; Sui, Moh.; Sudiyono, Sudiyono; Domas G., Patria; Karim, Fatimah
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 2 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (487.325 KB) | DOI: 10.33230/JLSO.7.2.2018.353

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Sukamto et al, 2018. The Development of Analog Rice as Obesity Control from Pojale Materials (Cassava, Corn and Soybean). JLSO 7(2):128-135.Population growth can cause 2 problems, namely food shortage population and overweight and obese population. Indonesians who are overweight and obese have reached 25%. This study aimed to develop analog rice to control obesity from corn and cassava-based ingredients than contain high amylose, and soybeans as a protein source. Corn flour, cassava flour and soy flour passed the 80-mesh sieve was used in the study. The analog rice granulation process used the Twin Screw Extruder KL Protecal machine. The temperature settings for the extruder thread at the beginning, middle and end were 80, 85 and 90 °C, respectively. The results showed that the composition of the ingredients of corn flour, 1:1 cassava flour and without addition of soy flour yielded the best results of analog rice in terms of color, texture, structure and surface smoothness. The analog rice can be cooked for 8-10 minutes with addition of water by 1.5 times of the rice. Cooked rice contained 9.44% protein, 76.40% starch, 7.99% fiber, and 36% amylose when the formula was added with 10% soy flour. Sensory test showed that panelists was on average like the rice.
Perspektif Prospek: Potensi dan Kendala Sektor Pertanian pada Zona Sub DAS Rawas di Kabupaten Musi Rawas Utara Sumatera Selatan Chuzaimah, Chuzaimah; Sjarkowi, F.; Wildayana, E.; Yunita, Yunita
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 2 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (519.05 KB) | DOI: 10.33230/JLSO.7.2.2018.365

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Chuzaimah et al, 2018. Prospect Perspective: Potential and Constraints of the Agricultural Sector in Rawas Sub-watershed Zone in Musi Rawas district, South Sumatra. JLSO 7(2):174-184.Land resources play a very important role in all sectors of economic development. Musi Rawas Utara District is one of 17 districts or cities in the administrative area of South Sumatra Province, which is the youngest district in the Province.This research aimed to analysis of 1) potential and 2) constraints of the agricultural sector in Rawas Sub-watershed Zone in Musi Rawas District, South Sumatra.This research was carried out in Musi Rawas Utara District. Primary data was based on questioner. Whereas secondary data was obtained from relevant agencies or institutions as well as literatures related to this paper. The results showed that there were several potentials and constraints of the agricultural sector in North Musi Rawas District. The potential that exists in terms of land use is remaining a large area of suitable land for agriculture. Land in Musi Rawas Utara District in 2014 was mostly used as a mixed plantation, which was 3,516.47 km² or reached 57.99% of the total the district area and spread throughout the sub-districts. The second widest use was 1,731.42 km² or 28.82% of the land in this District is still in the form of forests, both protected forests (1,604.07 km²) and secondary dry land forests (127.35 km²). The existing constraints in North Musi Rawas District are floods, forest fires, landslides and drought.
Pemanfaatan Limbah Organik dalam Pembuatan Bioinsektisda berbasis Bacillus thuringiensis sebagai Agens Pengendalian Hama Tanaman Caisim Brassica juncea Astuti, Dessy Tri; Damiri, Nurhayati; Pujiastuti, Yulia; Afriani, Siti Rakhmi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 2 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (715.285 KB) | DOI: 10.33230/JLSO.7.2.2018.350

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Astuti et al, 2018. Utilization of Organic Waste in the Making of Bacillus thuringiensis-based Bioinsecticides as Agents for Control of Caisim Brassica juncea Pests. JLSO 7(2):136-143. Bacillus thuringiensis was one of the entomopathogenic bacteria that can produces toxic crystal proteine (ᴕ-endotoksin). The use of bioinsecticide as a biological agent in pest control was one component of integrated pest control (IPM). The aimed of this reseacrh was to know the population of pests in plants and the percentage of damage to plants that exist in each treatment. The research was conducted in a vegetable garden in the Banyuasin district in November 2017 until January 2018. The research method used a randomized block design with 5 treatments and 4 blocks. The treatment was Bacillus thuringiensis KJ3R5 cultured in coconut water and rice washing water  (A), Bacillus thuringiensis LC2 cultured in coconut water and tofu wastewater (B), commercial Bacillus thuringiensis (C), inorganic insecticide (sidametrin) (D), and water as control (E). The variables observed were arthropod populations on the canopy and ground surface of choy sum (Brassica rapa var. parachinensis or Brassica chinensis var. parachinensis) plants. The results showed that 4 species of pests i.e. Pyllotreta crucifera, Spodoptera litura, Plutella xylostella, and Helula sp. Treatment with Bacillus thuringiensis LC2 (B) resulted in reduction of plant damage by 61%.
Produktivitas dan Luas Lahan Minimal Petani Padi Sawah Lebak di Kabupaten Ogan Ilir Sari, Komala; Febriyansyah, Ahmad
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 2 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (503.27 KB) | DOI: 10.33230/JLSO.7.2.2018.354

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Sari et al, 2018. Productivity and an Enlarge Minimum Land Area of Paddy’s Farmers in Swamp Land of the Ogan Ilir Regency. JLSO 7(2):185-195.South Pemulutan is one of the sub-districts in Ogan Ilir Regency which has swamp paddy fields potential to be developed. Unfortunately, the use of production factors which applied by the farmers has not been maximized. Therefore, proper management by using production factors efficiently and effectively can increase productivity and maintain the sustainability of their farm. Moreover, the aims of this research were (1) to analyze the factors which affect the low productivity of the swamp paddy fields, (2) to calculate the percentage of an income of the swamp paddy fields’ farmer which can fulfill their household outcome, (3) to calculate the minimum land area of the swamp paddy fields of the farmer. The method were used in this research was survey method. The sample of the farmers which taken in this study were 30 farmers from 187 farmers which works on swamp paddy fields in Lebak Pering village. The data was gathered consist of the primary data and the secondary data. The result of this research showed (1) factors which extremely affected toward swamp paddy fields productivity in Lebak Pering village was the largest of the area, seed variety, the used of urea fertilizer, the experiences of the farmer, while those that have no effect are the used of SP-36 fertilizer, NPK fertilizer and then the pesticides. (2) The contribution of swamp paddy fields farmers’ income to farmers' consumption expenditure were 60.28%. (3) The minimum land area that suggested to be cultivated by the farmer is 1 hectare and if the farmer only relies on their swamp paddy fields farming, then the minimum land area that suggested to be raised by the farmer is 1.66 hectares.
Aplikasi Bahan Organik pada Tanaman Sorgum (Sorghum bicolor L.Moench) var. KD4 di Lahan Kering untuk Peningkatan Penyediaan Hara N.E., Suminarti,; Guntoro, A.Y.; Fajrin, A. N.
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 2 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (683.351 KB) | DOI: 10.33230/JLSO.7.2.2018.362

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Suminarti et al, 2018. Application of Organic Matter in Sorghum Plants (Sorghum bicolor L.Moench) var. KD4 on Dry Lands for Soil Nutrient Supply Improvement. JLSO 7(2):144-156. The low content of soil organic matter and soil fertility are characteristics of dry land. Therefore, so the land can be utilized for agricultural farming, a material that is capable of acting as a soil improvement is needed, namely organic matter. The study aimed to examine the effect of the source and dosage of organic matter on the supply of nutrients, growth and yield of sorghum plants was carried out in July 2016 in the experimental garden of  Brawijaya University. A split plot design was used in this study. The sources of organic material (sugar can waste, organic waste compost and cow dung) were set as the main plot, whereas doses of organic matter (125, 100 and 75) % of recommended dosage as subplots. The study was repeated 3 times. Soil analysis was carried out 3 times, namely: (1) before planting (BO, N content, P, K soil, soil pH and soil texture), (2) after application of organic material (BO and N, P, K soil content) and (3) after harvest (BO and N, P, K soil content). The agronomic observations were carried out destructively on generative phase at 80 days after planting (DAP) including the components of growth (root dry weight, leaf area, and total dry weight of the plant) and harvest at age of 90 DAP. F test at 5% level was used to test the effect of treatment, while the difference between treatments was based on LSD level of 5%. The results showed that there was a significant interaction between the source and dosage of organic matter on the variable leaf area and total dry weight. The highest yield was obtained in sugar can waste  at various doses. Higher yields of seeds per hectare were also found in sugar can waste  which is equal to 1.76 tons ha-1. The sugar can waste application  is able to provide N, P and K soil elements of 18.3%, 85.68% and 8.42% respectively compared to organic waste compost and cow dung.
Studi Empiris pada Pola Sumber Dana untuk Pembiayaan Usahatani Padi di Sumatera Selatan Hamzah, Maryanah; Bidarti, Agustina; Anggraini, Erise; Antoni, Mirza
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 2 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (557.653 KB) | DOI: 10.33230/JLSO.7.2.2018.357

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Hamzah et al, 2018. Empirical Study on the Pattern of Funding Sources for Rice Farming in South Sumatra. JLSO 7(2):196-203. The objective of the study was to identify the source and size of the financing portion of the rice farming from the loan and the terms and the interest rate charged. The interviews were conducted on 75 samples of rice farmers whose farming costs were partly derived from loans at three different land ecosystems in South Sumatra Province. The three types of ecosystems viz., tidal swamp land, technical irrigation, and swamp land were used in the study.  The results showed that there were seven financing sources that farmers used for fulfill their production cost if they not enough capital. Middlemen was biggest source with a portion of 45.28% and their own costs of 43.52, the rest is relatively small comes from money lenders, families, rice milling units, cooperative and friends. The interest rate charged varies from 3% to 50% per planting season. The lowest interest rate on lending money was to cooperatives and middlemen. However, if farmers borrow from middlemen, they must sell their rice to them. The highest interest rate from money lenders is 50%. All loans were being paid at after harvested time. Only borrow to families and friends were not charged interest and other terms. Farmers were forced to use non-formal lending institutions because banks located far away and they were afraid to come to the bank. It is suggested to reduce the dependence of rice farmers on non-formal lending institutions through developing a more effective agricultural cooperative.       
Evaluasi Perubahan Iklim dan Pengaruhnya terhadap Pola Tanam, Waktu Tanam serta Produktivitas Kedelai (Glycine max L. Merrill) Di Kabupaten Malang Jawa Timur Herlina, Ninuk; Fajriani, S.; Rahman, F. A.
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 2 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (698.643 KB) | DOI: 10.33230/JLSO.7.2.2018.351

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Herlina et al, 2018. The Evaluation of Climate Change and The Effect to Cropping Pattern, Panting Season and Productivity of Soybean (Glycine max L. Merrill) in Malang Regency, East Java. JSLO 7(2):106-120. Climate change is a negative impact due to development activities on Earth. Forests that lose function caused degradation and increases in greenhouse gas concentrations cause global warming and trigger climate change. Climate change is thought to affect cropping pattern, planting time and soybean productivity. The purpose of the study was to evaluate the expected climate change and analyze correlation between climatic elements and the pattern and time of planting and soybean productivity. The research was carried out in March to April 2018 in Kalipare, Donomulyo, Singosari and Dau, Malang Regency, East Java. The tool used is a questionnaire. The material are the climate elements, soybean productivity and interview data. This study uses survey research methods. Total respondents were 40 farmers. Climate change analysis by analyzing mean changes in temperature, rainfall and number of rainy days in period 1 (1988-1997), period 2 (1998-2007) and period 3 (2008-2017). Correlation coefficient analysis is used to determine the correlation between climatic elements and soybean productivity and followed by t test. The results show that climate change has occurred in Malang Regency for the past 30 years. The correlation between temperature, rainfall with soybean productivity showed a "low" correlation, while number of rainy days with soybean productivity had a "very low" correlation. Temperature significantly affected soybean productivity in Malang Regency. Soybean cropping patterns was not affected by climate change, but planting time was influenced by shifting seasons.

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