Jurnal Lahan Suboptimal : Journal of Suboptimal Lands
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Tingkat Pengetahuan, Sikap dan Perilaku Petani dalam Pengelolaan Konservasi Musuh Alami sebagai Upaya Pengendalian Tungro di Kalimantan Selatan
No full textIbrahim et al, 2018. Level of Knowledge, Attitude and Behavior of Farmers in Managing Conservation of Natural Enemies as Tungro Control Efforts in South Kalimantan. JLSO 7(2):121-127. Efforts to secure and maintain food self-sufficiency, especially rice that has been achieved by the government, need to be done. One of them is by controlling plant pests and diseases.Another effort that can be done is to utilize the potential of suboptimal land such as swamps, in addition to optimizing irrigated and rainfed rice fields.Tungro is an important disease that can be threaten rice productivity. Conservation of natural enemies as one method of tungro control needs to be studied at the farmer level. Thepurposes of this study were to examine the level of knowledge, attitudes and behavior of farmers in the conservation management of natural enemies in swamps. This research was conducted at Guntung Ujung, Banjar District South Kalimantan on August 2017.Site selection was carried out by purposive sampling because the location was one of the tungro endemic areas in 2014. The primary data were collected using interviews on 37 respondents farmers, while secondary data was obtained from relevant agencies.Data were analyzed descriptively by scoring.The results showed that the level of knowledge of farmers on the management of conservation of natural enemies belonged to the medium category (64.13%), as well as the attitude of farmers towards the management of conservation of natural enemies was grouped to the medium category (65.77%). The behavior of farmers in supporting the management of conservation of natural enemies was belonged to the medium category (53.67%)
Akumulasi Logam Berat Zn dan Pb pada Sedimen, Akar dan Daun Mangrove Avicennia alba di Pulau Payung, Sumatera Selatan
No full textRiyanti 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. 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  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.  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
Perbandingan Pengaruh Beberapa Jenis Pupuk Mengandung Fosfat terhadap Kehilangan Hara Melalui Pelindian pada Tanah Gambut
No full textSubiksa et al, 2018. Comparison Effect of Several Phosphate Contain Fertilizers to Nutrient Loss Trough Leaching on Peat Soil . JLSO 7(1):1-13. Peat soil have specific nutrient adsorption characteristics which are affected by soil pH dependent charge. Therefore, nutrient management on such soil should be done using different approach compared to mineral soil. Research on the comparison effects of several types of phosphate containing fertilizers to nutrient loss through leaching on peat soil has been carried out in greenhouse using coulom experiments. The objectives of this study was to evaluate the rate of primary macro nutrient loss and look for fertilization technology which can reduced leaching rate. The study used a randomized block design of 14 treatments with 3 replications. The treatments were complete control treatment, partial control and 4 types of P contain fertilizer, namely SP-36, NPK compound, Chrismast Island Phosphate Rock (CIRP), and Pugam each of them with 3 levels dose. The peat soil used was ombrogenous peat with hemic maturity level taken from OKI Regency, South Sumatra. Watering is done every 2 days with 350 ml ion-free water/pot. The results showed that N and K nutrients leaching, mostly due to aplication rate of those nutrient, whereas type of fertilizer was not revealed significantly different. Meanwhile, P concentration in leachate water was significantly different among treatments. Leaching of P in the control treatment was very low because of P content of peat soil was low. The highest loss of P trough leaching rate is shown by the NPK treatment because NPK compound is belong to fast nutrient release fertilizer. CIRP and Pugam treatments showed low P loss trough leaching rates due to the slow release of P on CIRP and Pugam. The low leaching rates of CIRP and Pugam are also because of high content of Al and Fe as polyvalent cation that can promote new soil positive charges as site adsorption of P. It can be concluded that fertilization with a slow release type of phosphate fertilizer and contain sesquioxide as source of polyvalent cations such as CIRP and Pugam can reduced the rate of phosphate loss trough leaching
Perspektif Prospek: Potensi dan Kendala Sektor Pertanian pada Zona Sub DAS Rawas di Kabupaten Musi Rawas Utara Sumatera Selatan
No full textChuzaimah 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
Penggunaan Probiotik pada Budidaya Ikan Lele Sangkuring (Clarias sp.) di Drum Plastik di Desa Arisan Jaya, Ogan Ilir, Sumatera Selatan
No full textSasanti AD, Anggraini SP. 2019. The utilizing of probiotics for catfish sangkuriang (Clarias sp.) cultivation in plastic pond at Arisan Jaya Village Ogan Ilir, South Sumatera. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands. 8(2):134-140. The research was to provide information to farmers on the use probiotics on catfish (Clarias sp.). The used of probiotics aimed to maintain balance pathogenic microbes and suppress activity in the digestive tract , and the environmental biodegradation waters through the process. This study aimed to compare of field Practice is to provide information to the people about the utilizing of probiotics for catfish (Clarias sp.) cultivation a plastic drums at Arisan Jaya village Ogan Ilir. The research used two plastic drum media as a catfish maintenance container, the first maintenance container there was no addition of probiotics, while in the second maintenance container there was the addition of probiotics. The parameters were observed in this study were absolute weight growth, absolute the length growth, survival, and water quality. The result of this research showed that growth of catfish cultivation in plastic pond with length of 3,51cm and weight of catfish the used probiotics of 17,15 g was higher than the growth length of 2,46 cm and weight of catfish were not using probiotics of 12,03 g. The survival rate of the catfish utilizing of probiotics cultivation in plastic drums with the use probiotics and not use probiotics was  100%
Uji Toksisitas Surfaktan Linear Alkilbenzene Sulfonate (LAS) Histologi Insang dan Hati Benih Ikan Kerapu Bebek (Cromileptes altivelis)
No full textKristianti et al, 2019. Toxicity of Linear Alkilbenzene Sulfonate (LAS) Surfactant Gills and Liver Histology of Humpback Grouper Seed (Cromileptes Altivelis). JLSO 8(1):107-116.LAS is surfactant that is most commonly used because this surfactant is the main cleaning substance contained in detergent. Waste of detergent can give side effects in the tissue of organisms, especially on the gills and liver of fish. The aims of this research were to analyze the toxic effects arised from LAS surfactant to the survival of fish seed experiment with different concentrations, to determine levels of LAS surfactant that are capable to be tolerated and to analyze the gills and liver damage arising from LAS surfactant to fish seed experiment. The test of LAS surfactant toxicity on fish seed experiment was conducted using the laboratory of experimental method, while the testing of gills and liver histology of fish seed experiment with paraffin method and Hematoxylin Eosin (HE) staining. The results showed that LAS surfactant gave toxic effects on Humpback Grouper Seed (Cromileptes altivelis) and gave effect such damage to the gills and liver histology. Toxicity and tissue damage rose as the increase of LAS surfactant concentration. LAS surfactant levels were able to be tolerated by Humpback Grouper Seed test not more than 0,253 mg/l
Analisis Polimorfisme Padi Varietas Lokal Sumatera Selatan Berdasarkan Pendekatan PCR-RAPD
No full textAdriansyah et al, 2018. Polymorphism Analysis of Local Varieties of South Sumatra Rice Based on PCR-RAPD. JLSO 7(1):50-58.The existence of rice germplasm is threatened because of the introduction of various high-yielding varieties. This study aimed to analyze rice kinship and conservation of local varieties of South Sumatra rice. This study was conducted in August 2015 to December 2015. DNA isolation using the Promega Wizard Purification Systems KIT. This study uses OPA-9 primer, OPA-10, OPA-13, OPA-16. All primers can amplify DNA with optimal quality. OPA-9 primers produced 5 DNA bands, OPA-10 primers produced 9 DNA bands, OPA-13 primers produced 12 DNA and Primary OPA-16 bands producing 9 ppita DNA
Pengaruh C/N Rasio Berbeda untuk Pembentukan Bioflok pada Media Pemeliharaan terhadap Pertumbuhan dan Kelangsungan Hidup Benih Ikan Betok (Anabas testudineus)
No full textPratama 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. 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%
Rehabilitasi Kolong Pasca Penambangan Timah dengan Teknologi Pertanian Terapung pada Budidaya Tanaman Selada Merah Keriting di Provinsi Bangka Belitung
No full textSyafrullahet al, 2018. Rehabilitation of Pit after Tin Mining by Floating Agricultural Technology at Red Curly Lettuce Cultivation in the Bangka Belitung Province. JLSO 7(1):88-96. Bangka Belitung Province is the largest tin producer in Indonesia. After tin mining was formed pit/under the surface of the earth . This pit potential was quite large, especially under the colonies near the settlement, in addition to fishery business could also be used with floating plant cultivation. The purpose of this research was to get location-specific cultivation technology of location specific plant at pit after tin mining which was floating plant cultivation technology and utilize the pit after tin mining to be productive pit for cultivation of vegetable crops and preserve the environment by utilizing the pit, plastic waste and grass became useful in the cultivation of floating vegetable crops at the pit after tin mining. This research was conducted from January to May 2016 in Batu Belubang Village, Pangkalan Baru District, Central Bangka Regency of Bangka Belitung Province. The design used was Factor Randomized Random Design (RAK) with 9 treatment combinations repeated 3 times and 5 sample plants. As the indicator plant was red curly lettuce. The treatments were 1) Type of raft (R) with 3 levels,those are R1 = raft of plastic waste size of  250 ml, R2 = raft of plastic waste size of 600 ml, R3 = raft of plastic waste size of 1500 ml and 2) compost type (X) with 3 levels ,namely K1= compost of purun grass K2 = compost of bakung grass and K3 =  compost of gegas grass. From the results of the research showed that the type of plastic waste raft size of 250 ml and type of bakung grass compost gave the better growth and production response for curly red lettuce and the application of technology cultivation of curly floating red lettuce plants at the pit after tin mining lead to give the same results and tend to higher if compared with the system of cultivation coventionally on the dry land
Pertumbuhan dan Produksi Tiga Varietas Unggul di Lahan Rawa Lebak Desa Jambu Ilir Kabupaten Ogan Komering Ilir, Sumatera Selatan
No full textSuparwoto et al, 2019. The Growth and Production Three Rice Superior Varieties in Swampy Lands at the Jambu Ilir Village, Ogan Komering Ilir District. JLSO 8(1):39-46.The assessment was carried out in Jambu Ilir Village, Tanjung Lubuk District, Ogan Komering Ilir Regency, South Sumatra, starting in the dry season of 2018. Varieties exhibited were 2 superior varieties  and 1 comparative variety, Mekongga. The aim of the study was to obtain information on the growth and production of Inpari 30 and Inpara 8 varieties that were adaptive and had high production on lebak lands. The study was designed by observation method, spacing of legowo 2: 1 (50x25x12.5 cm), seedling age 35 days after seedling, 2-3 seeds / holes. The dosage of fertilizer used is 150 kg Urea, 100 kg SP-36 and 100 kg KCl / ha. The variables observed were: plant height, number of productive tillers, number of grain per panicle, number of filled grains per panicle, and grain yield per ha. The data obtained was arranged in tabulation and analyzed by statistical tests, namely the test of the mean value (test-t). The results showed that the plant height of the varieties exhibited was classified as low to moderate with the number of productive tillers classified as moderate. Inpari 30, and Inpara 8 can adapt well in lebak lands with a production of 5.1-5.3 tons GKP / ha higher than Mekongga as a comparison variety and are highly favored by farmers