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Seminar Nasional Lahan Suboptimal

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Published by Universitas Sriwijaya

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Core Subject : Education, Agriculture,

Agriculture, Biological Sciences & Forestry Other

Prosiding Seminar Nasional Lahan Suboptimal 2018

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Articles 642 Documents

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Optimalisasi Lahan dengan Usaha Tani Tumpangsari Kedelai dan Jagung Pada Lahan Sawah Beriklim Kering Kabupaten Bima Irma Mardian; Ahmad Suriadi; Eka Widiastuti
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Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Mardian I, Suriadi A, Widiastuti E. 2020. intercropping of soybean and maize for land optimization on farming system in low lands with dry climate in Bima regency. In: Herlinda, S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober.pp. xx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).An intercropping farming system of soybean and maize was studied to determine to what extent effects of the system on growth, yield, income and land use efficiency. This study was conducted at Usaha Baru farmer’s group in Nggembe Village, District of Bolo, Bima Regency in 2019. The study was conducted in 1 ha land where 3 treatments were applied, namely soybean monoculture, intercropping of soybean and maize and maize monoculture. Plant spacing of 40x10 cm of Dena 1 variety of soybean at monoculture cropping pattern was applied. Intercropping pattern of soybean and maize with a ratio of 50%: 50%, with spacing of 20x30 cm and 40x35 cm, respectively. Monoculture of maize with plant spacing of 70x20 cm of Nasa-29 variety was applied. The parameters observed were agronomic performance, yield performance, data of farming input and output as well as land equality ratio (LER) and competitive ratio (CR) values. The results showed that the agronomic performance of the intercropping of soybean and maize was significantly different from monoculture. The yield performance showed a significant difference between the intercropping of soybean maize and monoculture system. The LER and CR value were 1.67 and 0.90 respectively. However, the income level of the intercropping system was higher than the monoculture of soybean and maize which is shown in the profit value of the intercropping was Rp. 15,350,260 and R/C 2.57 and B/C 1,57.

Efektifitas Penanaman Melaleuca Cajuputi Pada Area Pascatambang IUP Banko Barat PT. Bukit Asam, Tbk. Nazula Nutayla; Adi Arti Elettaria
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Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Nutayla Nazula, E. Arti Adi, 2020. Effectiveness planting melaleuca cajuputi in post minning area banko barat PT. Bukit Asam, Tbk. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Post-mining land has potential damage after mining activities ends, excavating the soil and returning it to the ex-mining pit causes the soil bearing capacity to be low and even damaged so that reclamation with adaptive plants such as melaleuca cajuputi (eucalyptus) is needed. The purpose of this study was to determine the effectiveness of the growth of melaleuca cajuputi plants in post-mining locations. The research method used is by making field benchmarks to measure and analyze plant growth rates, plant health percentages, plant height and diameter. The results of the analysis of the percentage of plant growth in the three sampling locations showed that the percentage of plant growth was above 90%, so it could be said that the plant growth was in excellent condition. The health level of plants at the East Backfilling Pit 3 and West Backfilling Pit 3 locations showed 100% healthy results for the number of living plants while in the West Backfilling Pit 1 location there were still plants that languished due to lack of plant maintenance. The success of reclamation can be achieved if the plants grow well and are healthy, the percentage of plant growth desired and the number of plants per hectare are achieved. The conclusion from this research that the planting of melaleuca cajuputi is very effective as a reclamation plant of PT. Bukit Asam, Tbk. because this plant can grow well, adaptive in critical land conditions and provides high economic value and also give benefits to the community.

Eksistensi Pendampingan Teknologi Tumpang Sari Tanaman (Turiman) dalam Upaya Peningkatan Produksi Komoditas Sumber Pangan Rima Purnamayani; Hari Hermawan
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Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Purnamayani R, Hermawan H. 2020. Existence of intercropping technology (Turiman) assistance in efforts to improve the quality of food commodities. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xxx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).The increase in food production can be implemented through the application of the pattern of intercropping (turiman), which can eliminate land use competition between plants and is a sustainable solution to the problem of land limitation. The objective of this study was to describe the existence of the assistance of intercroppping (Turiman) conducted by Assesment Institute for Agricultural Technology (AIAT), as an effort to increase the production of food source commodities. Survey research method by taking purposive samples of 32 respondents. The data used scaling with Guttman scale, which was analyzed descriptively and tested with non-parametric statistics (Binomial Test). The results of descriptive analysis showed that the assistance received by users in the field included the Technical Guidance of Turiman Technology, the competence of technology assistance by AIAT, the availability of variety displays on the location, the availability of agricultural machinery tools from government as well as the availabity of water resources . The binomial test showed that the assistance elements that have significant effect on improving the quality of food sources were: the availability of guidance on activities in the field both from AIAT and related agencies, the competency of human resources companions from AIAT team, training materials as needed, the availability of dissemination media and demonstrations plot, the display of commodity varieties in the field, superior seed assistance on time and utilized well, the availability of water sources and infrastructure that are utilized well, as well as the water management institution actively.

Pengaruh Sari Jeruk Siam Pontianak dan Keprok Terigas terhadap Kualitas Es Krim Trifena Honestin; Imro’ah Ikarini; Hasim Ashari; Zainuri Hanif
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Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Honestin T, Ikarini I, Ashari H, Hanif Z. 2020. Effects of siam pontianak and keprok terigas juice on the quality of ice cream. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Ice cream products made of orange juice may increase the added value of the products. Besides, vitamin C contained in the oranges also contributes to human’s health. The study aims to determine effects of differences in the citrus varieties and the proportion of water compared to orange juice on the overrun value, total dissolved solids, melting rate, vitamin C content, sensory properties of scoring and the panellist’s preference for orange ice cream. The study was designed using Completely Randomized Design with two factors, namely differences in citrus varieties (Siam Pontianak and Keprok Terigas) and the proportion of orange juice compared to water (1:2; 1:1; 2:1). The results show that the Keprok Terigas ice cream had the highest preference value on the parameters of colour, aroma, taste and texture compared to those of Siam orange ice cream. The highest content of vitamin C was obtained from Siam orange ice cream in the proportion of orange juice compared to water 1:1, vitamin C content was 48.40 mg/100 grams. Total dissolved solids of the orange ice cream ranged from 2.267 – 2.600, pH was between 4.933 – 6.180, the overrun value was between 52.320 – 56.780% and melting rate was between 790.1 - 884.5 seconds. The differences between the Keprok Terigas and Siam Pontianak varieties have affect the value of vitamin C, pH, and overrun. The treatment of the proportion of orange juice: water affected the pH value, total dissolved solids, and overrun, but did not affect the melting rate.

Peran Diseminasi Teknologi dalam Meningkatkan Pengetahuan Petani dan Produksi Padi di Lahan Rawa Lebak Sumatera Selatan Syahri Syahri; Renny Utami Somantri; Tumarlan Thamrin
Seminar Nasional Lahan Suboptimal 2019: Prosiding Seminar Nasional Lahan Suboptimal “Smart Farming yang Berwawasan Lingkungan untuk Ke
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Syahri S, Somantri RU, Thamrin T. 2019. Dissemination technology to enhance farmers knowledge and rice production in swamps of South Sumatera. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal 2019, Palembang 4-5 September 2019. pp. 584-594. Palembang: Unsri Press. The government continues to strive in order to increase rice production, especially in swamps. In fact, at the end of 2018, the Ministry of Agriculture initiated the SERASI program’s. However, adoption of technologies at farmers level are still very slow. So that, South Sumatra AIAT always campaign the good agricultural practices which have been produced by IAARD. It was done to improve the welfare of farmers, especially on swampy. The activity was carried out on 12 farmer groups in Jukdadak village, Tanjung Lubuk subditsrict, distrcit of OKI from May to December 2018. Dissemination of technology is done through several methods, including: 1) making an integrated rice crop management demonstration plot of 5 ha, 2) socialization of 2.5 ha of new rice varities, 3) technology dissemination through farmer training, 4) farmer group meetings, 5) technology demonstrations, and 5) dissemination of dissemination material produced by the IAARD. The technologies which has introduced in demonstration plot includes the Legowo 2:1, the use of adaptive varities (Inpari 30 and Inpari 43), fertilization based on the results of soil test kit and pest control based on IPM principles, 21 days seedling, making local microorganism (MOL) and the use of leaf chart and PUTR. The parameters analyzed included the growth and rice yield on both of demonstration plot and display, increasing farmers' knowledge, and increasing rice productivity. The results show that rice productivity at the demonstration plot location and varities socialization averaged 4.8 t/ha (Inpari 30) and 4.0 t/ha (Inpari 43). The technology dissemination was able to increase rice productivity at the assisting location, which reached 19.1% compared to the previous year. In addition, an increase in farmers' knowledge in carrying out rice cultivation, especially in the swampy swamp land.Keywords: technology dissemination, farmers knowledge, rice production, swamp, Sumatera Selatan

Pengaruh Metode Pengeringan Terhadap Senyawa Volatil pada Pembentukan Flavor Biji Kopi Robusta Jonathan Namora; M. Sihombing; M. Rahardjo
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Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Namora J. Sihombing M. Rahardjo M. 2020. effect of drying method on volatile compounds in the formation of robusta coffee beans flavor. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).The coffee beans drying process still depended on conventional methods, while also influenced by an uncertain climate. This paper is aimed to review the coffee beans drying methods through conventional, greenhouse, cabinet, heat pump, and microwave drying methods upon the volatile compounds content, then get the best drying method. By GC-MS analysis with 0-40 minutes of retention time, founded 6 dominant compounds that are important within flavor formation, such methanethiol; 2,3-butadione; 2,3-pentadione; hexanal; 2-ethylpyrazine; and 2-ethyl-6-methylpyrazine. Seen from effectiveness of drying time, microwave become the best instrument to choose. However inefficient on breaking the precursor into volatile compounds, while heat pump dryer is the most effective method to reduce the water content. Meanwhile, it has ineffectiveness as microwave does. Drying cabinet is the most recommended method, due its temperature stability, and able to reach the effective temperature of Maillard reaction (>120 ˚C), the most important reaction on flavor’s characteristic formation.

Buah Hutan Sumber Pangan dan Pengobatan di Kawasan Danau Toba, Indonesia Aswandi Aswandi; Cut Rizlani Kholibrina
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Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Aswandi A, Kholibrina CR. 2020. Forest fruits for food and medicine in lake Toba region, Indonesia. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xxx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Indonesia's tropical forests are blessed with a high diversity of fruiting trees, a quarter can be consumed or contain medicinal properties. The objectives of study are to identify forest fruit trees that utilized by local community as food and traditional medicinal practices, botanical characteristics, phytopharmaca content and pharmacological activities. The research was conducted through exploration and in-depth interviews with 50 community respondents in Lake Toba, North Sumatra. Based on exploration of natural forests in Humbang Hasundutan and North Tapanuli, at least 21 forest fruit trees species were identified as potential food and medicine. Besides providing carbohydrates, forest fruits are source of essential vitamins and minerals. Some of these functional foods contain essential oils and utilized in traditional medicine. One is Rukam (Flacourtia rukam) which is mixed as a medicine for diarrhea and dysentery. Biwa (Eriobotya japonica) fruits contain citric acid, carotene, vitamins A, B and C. High potassium content is nutritious for controlling blood pressure, as well as copper and iron for erythrocytes formation. Traditionally, boiled-leave is utilized to reduce fever, while barks for roundworms treatment. Boiled-root is also utilized for bloating, stomach aches and diarrhea treatment. Furthermore, Harimunting (Rodomyrtus tomentosa) fruit extract contain anthocyanins which high antioxidant activity that increase haemoglobin. The leaves are utilized for diabetes and external wounds treatment. While, root extract is used to inhibit pus-causing bacteria development. Most of plant parts contain flavonoids, steroids, triterpenoids, tannins, quinones and essential elements including sodium, calcium, potassium and magnesium.

Cover, Preface dan Daftar Isi Prosiding Semnas LSO
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Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Cover Prosiding

Produksi Benih Uji Pertumbuhan dan Daya Hasil beberapa Aksesi Jagung Bersari Bebas Unsri J1-J8 pada Lahan Kering Sub-Optimal E.S. Halimi; M. Hasmeda; P. Amelia; T.P.A. Dewa; I. Pranjaya
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Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Halimi ES, Hasmeda M, Amelia P, Dewa TPA, Pranjaya I. 2020. Seed production growth and yield evaluation several open-pollinated maize accessions of unsri j1-j8 at sub-optimal dry land. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Effort to develop open pollinated varieties of maize should be put into a priority to give more benefit to the farmers. Production of their seeds are also important, since Maize can only be commercially grown from the seeds. This research was carried out in two-seasons, to produce seeds in 2017/2018 and then planted them for evaluation in 2018/2019 for evaluation. Research utilized eight Maize accessions called as Unsri-J1 to J8. Research to produce seeds was done by using ear to row method in 3 replication-plots, each consisted of 10 rows with planting distance 75cm x 25 cm. Research to evaluate growth and yield were done in the field, incorporation with local farmers. Analysis data were done by using a randomized block design in nested scheme consisted of 5 plot-samples as blocks. Result of this research indicated that seed production of Unsri-J1 to J8 in sub-optimal dry land could be done, especially for the Unsri-J1 and J3 accessions that beside showed consintency in growth, also were able to produce 6.4 and 5.5 ton dry seeds/ha. Their growth evaluation also showed greater posture and having earlier period of anthesis, while their yield evaluations, in general, were about equivalent, even more for Unsri-J1 tended to have higher yield than control variety.

Dampak Alih Fungsi Lahan dan Curah Hujan terhadap Banjir di Kota Pekalongan, Jawa Tengah Gardena Smoro Laksmi
Seminar Nasional Lahan Suboptimal 2020: Prosiding Seminar Nasional Lahan Suboptimal ke-8 “Komoditas Sumber Pangan untuk Meningkatkan K
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Laksmi GS. 2020. Impact of land use change and rainfall on flooding in Pekalongan city, Central Java. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xxx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Pekalongan City is located on the northern coast of Central Java Province which connects Jakarta, Semarang, and Surabaya. Located on the main route to Java Island, Pekalongan City has strategic economic potential, especially in the industrial sector. This condition caused Pekalongan City to become the area with the highest demographic urbanization value in Central Java in 2006 and led to changes in land cover. Land-use change will have negative impacts if uncontrolled like the reduction in catchment areas, especially if the rainfall is high. This study is a literature study that contains the effect of land-use change and rainfall on flooding in Pekalongan City. Data and information come from various journals related to floods in Pekalongan City. This study aims to analyze the impact of land use change and rainfall on waterways in Pekalongan City. Changes in land cover and rainfall have a strong correlation. The reduced water catchment area causes the increase of flood index. Pekalongan City was categorized as a city that was not prone to flooding in 2011, but in 2017, all villages in North Pekalongan Regency were flooded with an area of 1,249,420 hectares.

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Deris Stiawan

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