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JURNAL SAINS DAN TEKNOLOGI INDONESIA

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ANALISIS KERAWANAN DAN KERENTANAN BENCANA GEMPABUMI DAN TSUNAMI UNTUK PERENCANAAN WILAYAH DI KABUPATEN MALUKU TENGGARA BARAT Prawiradisastra, Suryana
Jurnal Sains dan Teknologi Indonesia Vol. 13 No. 2 (2011)
Publisher : Badan Pengkajian dan Penerapan Teknologi

The District of Maluku Tenggara Barat is situated between: 07º 06’ 13” - 08º 02’ 08” South Latitudes and 131º 03’ 39” - 131º 45’ 09” East Longitudes. The Broad of Territory in the District of Maluku Tenggara ± 325,725 Ha. Maluku Tenggara Barat District was above three tectonic plates, resulting in the formation of the complex geological conditions, therefore the region include earthquake and tsunami prone area. About 30 percent of the tsunami in Indonesia occurred in the Maluku Sea and Banda Sea. Based on record have occurred BMKG station, 31 tsunami events occurred which caused a big earthquake. Looking at a fairly high frequency, it is important to assess potential earthquake and tsunami disaster in the future. The results of the study the potential for disaster if it is associated with population density, infrastructure and land use will be obtained a vulnerability. Vulnerability is needed in preparing the Regional Development.

SKENARIO KEBIJAKAN PENGEMBANGAN PROVINSI SUMATERA SELATAN SEBAGAI LUMBUNG ENERGI NASIONAL apriyanto, heri
Jurnal Sains dan Teknologi Indonesia Vol. 10 No. 1 (2008)
Publisher : Badan Pengkajian dan Penerapan Teknologi

The local government of South Sumatera Province and their people have desire to become a National Energy Stock (Lumbung Energi Nasional) is realistic. It is supported by the huge potential of energy resources and many kinds of nonrenewable energy (fossil) and renewable energy (nonfossil). Strategic position and basic infrastructure in this region support this plan. To realize this plan is needed direction and policy scenario as a reference in formulating the regional development program in order to support the realization of National Energy Stock. Based on the analysis of the existing strengths and opportunities, seven policies can be formulated to realize the National Energy Stock. Kata kunci : Lumbung energi nasional, Provinsi Sumatera Selatan,

PENENTUAN DAYA MAKSIMUM PHOTOVOLTAIK DENGAN METODE GROUP hadi, harsono
Jurnal Sains dan Teknologi Indonesia Vol. 14 No. 2 (2012)
Publisher : Badan Pengkajian dan Penerapan Teknologi

The maximum power point (MPP) is equivalent to maximum IxV at the I-V curve under G and T conditions. Characteristic and performance of the solar cell, module photovoltaic and solar generator of the photovoltaic system is possible to be evaluated through the MPP. The relationship among model, parameters and constants are expressed by a mathematical model of the exponential equation. Calculation of the MPP value at the intensity irradiation (G) and the cell temperature (T), the maximum voltage (Vmax) are fixed firstly by the current output equal to zero. The voltage output (Vout) is slowly dropped step by step (V=Vmax – n DV, where n = 1, 2, 3, . . . . m) and the current output (I) is founded. The MPPn (Iout x Vout) must be compared to the previous value of the MPPn-1 or MPPn – MPPn-1 ³ 0 Calculating process: the current-voltage (I-V) output, the MPP value is relative complicated and involves measured datum at the various irradiation and cell temperature. To simplifythe calculation of the MPP and I-V output, the group method is used to allocate the each datum [ Gn,Tn, In(In1, In2, In3, . . . Inm), Vn(Vn1, Vn2, Vn3, . . . Vnm), MPPn, Qn, Hn, . . . etc] in its dimensions [ {G1, G2,G3, . . . .Gn}, {T1, T2, T3, . . . .Tn}, {I1, I2, I3, . . . .In}, {V1, V2, V3, . . . .Vn}, {MPP1, MPP2, MPP3, . . ..MPPn}, {Q1, Q2, Q3, . . . .Qn},etc ].

PEMBUATAN GLASIR KELABU DENGAN MENGGUNAKAN PENCAMPURAN BAHAN PEWARNA BIRU DAN HIJAU Sundari, Komang Nelly
Jurnal Sains dan Teknologi Indonesia Vol. 11 No. 2 (2009)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Have been made three glazes which using 2 (two) raw colorantmaterials, oxide of cobalt and copper oxide. In the glaze, copper oxide from 0,1 % to 0,25 % (weight) while oxide of cobalt equal to 0,10 % (weight). Usage of copper oxide which equal to almost 3 (three) times fold in the reality cannot make dominant green color yielded glazes, even color of greenish blue even also cannot be obtained. Color of the glaze is young blue, indicating that oxide of cobalt more effective as colorant than copper oxide The glaze have maturity which enough at firing temperature 1250oC, having value of L = 68,70, a* from -0,05 to - 0,28 and b* = - 0,40. This value show that the glazes have green color spectrum (marked with value of a* negative) and blue (marked with value of b* negative) and also its young color (marked with value of L* high)

Uji Resistensi Beberapa Klon Kentang Terhadap Penyakit Hawar Daun (Phythopthora infestans) Madiyanto, Rudy; Ekananda, Suryantini; Gunarto, Anton
Jurnal Sains dan Teknologi Indonesia Vol. 16 No. 1 (2014)
Publisher : Badan Pengkajian dan Penerapan Teknologi

One of the important disease on potato late blight disease is caused by a fungus Phythopthora infestans (Mont.) de Bery. Damage by leaf blight disease can lead to decrease in the yield between 10-100%. The purpose of this study is to get 27 new varieties of potato clone accession numbers from crosses that have resistance to leaf blight disease Phythopthora infestans (Mont.) de Bery. Design Randomized trial method using group, treatment consisted of 27 clones of potato varieties from crosses with three comparators are Granola, Atlantic and Jasper. Was repeated twice. The results showed that the magnitude of the intensity of the attack on the last observation is converted to the level of resistance is known from 27 potato clones from crosses that were tested, there were six resistant clones that include the PT-04, AP-03, PT-03, AP-04, AP-07 and PT-02 with disease incidence between 9.70 to 18.33%, the four clones is somewhat resistant clone PT-01, PT-06, AP-08 and AP-02 with disease incidence between 20.48 to 37.50 %, while the other clones is somewhat fragile and susceptible to disease Phythopthora infestans (Mont.) de Bery.Salah satu penyakit penting pada kentang adalah penyakit hawar daun yang disebabkan oleh jamur Phythopthora infestans (Mont.) de Bery. Kerusakan oleh penyakit hawar daun ini dapat mengakibatkan penurunan hasil antara 10-100%. Tujuan penelitian ini adalah mendapatkan varietas baru dari 27 nomor aksesi klon kentang hasil persilangan yang memiliki ketahanan terhadap penyakit hawar daun Phythopthora infestans (Mont.) de Bery. Metode percobaan menggunakan Rancangan Acak Kelompok (RAK), perlakuan terdiri dari 27 klon kentang hasil persilangan dengan tiga varietas pembanding yaitu Granola, Atlantik dan Jasper. Diulang sebanyak dua kali. Hasil penelitian menunjukkan bahwa dari besarnya intensitas serangan pada pengamatan terakhir yang dikonversikan ketingkat ketahanan diketahui dari 27 klon kentang hasil persilangan yang diuji, terdapat enam klon yang termasuk resisten yaitu PT-04, AP-03, PT-03, AP-04, AP-07 dan PT-02 dengan kejadian penyakit antara 9,70-18,33 %, empat klon agak resisten yaitu klon PT- 01, PT-06, AP-08 dan AP-02 dengan kejadian penyakit antara 20,48-37,50 %, sedangkan klon lainnya agak rentan dan rentan terhadap penyakit Phythopthora infestans (Mont.) de Bery.Keywords: resistance, Phythopthora infestans (Mont.) de Bery, potato clone.

Kajian Potensi Tanaman Pangan di Pulau Jemaja Kabupaten Kepulauan Anambas Soewandita, Hasmana
Jurnal Sains dan Teknologi Indonesia Vol. 17 No. 2 (2015)
Publisher : Badan Pengkajian dan Penerapan Teknologi

The objective of this study is to analiisis biophysical particular soil fertility, water resource availability and suitability of land for the development of food crops Jemaja Island. The method used in this study is a field survey with the soil sampling with grid method. The results showed that soil fertility in some locations indicate soil fertility has a moderate to high nutrient content even though some land units there are still terkenda nutrient retention. The texture of the sand is also an obstacle to the development of several blocks of land units so the location is not feasible textured sand. Availability of surface water in the presence of several rivers and also the presence of the Weirs Dapit is support for the development of land for irrigated rice paddy. The area of study is about 700 hectares in the island Jemaja, ready to be developed into a regional agricultural area is certainly some land units still constrained by limiting faktors such as low soil pH, drainage, nutrient retention, rooting depth and soil texture. The limiting faktor is still possible to be repaired except as soil texture. Development of crop farming region is divided into several clusters each cluster region consists of several blocks or land units that reflect the grouping location. Cluster cluster region is Bukit Padi, Telaga Dungun, Pasiran, Mampok, Teluk Bayur, Risan, Padang Melang, Talipuk, Dapit, Air Jenang Air Semawang, Batu Berapit, Kelikai, Air Tengah-Gunung Kuta.Tujuan dari kajian ini adalah melakukan analiisis biofisik lahan khususnya kesuburan lahan, ketersediaan sumberdaya air dan kesesuaian lahan untuk pengembangan pertanian tanaman pangan di Pulau Jemaja. Metoda yang digunakan dalam studi ini adalah survey lapang dengan sampling tanah dengan metoda grid. Hasil kajian menunjukkan bahwa kesuburan tanah dibeberapa lokasi kajian menunjukkan kesuburan tanahnya mempunyai kandungan hara sedang hingga tinggi meskipun dibeberapa satuan lahan ada yang masih terkenda retensi hara. Tekstur pasir juga menjadi kendala pengembangan pada beberapa blok satuan lahan sehingga lokasi yang bertekstur pasir tidak layak. Ketersediaan air permukaan dengan adanya beberapa sungai dan juga adanya Bendung Dapit merupakan dukungan bagi lahan untuk pengembangan padi sawah dengan irigasi teknis. Dari luasan wilayah yang dikaji yaitu sekitar 700 Ha yang berada di pulau Jemaja, kawasan ini siap dikembangkan menjadi kawasan pertanian tentunya dibeberapa satuan lahan masih terkendala oleh faktor pembatas seperti pH tanah yang rendah, drainase, retensi hara, kedalaman perakaran dan tekstur tanah. Faktor pembatas masih memungkinkan untuk diperbaiki kecuali seperti tekstur tanah. Pengembangan kawasan pertanian tanaman pangan ini dibagi dalam beberapa klaster wilayah yang masing masing klaster terdiri dari beberapa blok atau satuan lahan yang mencerminkan pengelompokan lokasi. Klaster klaster wilayah tersebut adalah Bukit Padi, Telaga Dungun, Pasiran, Mampok, Bayur Selubung, Risan, Padang Melang, Talipuk, Dapit, Air Jenang Air Semawang, Batu Berapit Air Dalam, Kelikai, Air Tengah-Gunung Kuta.Keywords: soil fertility, irrigation, land suitability

UJI PUPUK (NPK dan EMAS) DAN ZAT PENGATUR TUMBUH (ATONIK dan ETHREL) TERHADAP PERTUMBUHAN VEGETATIF TANAMAN LADA (Piper nigrum L) Djamhari, Sudaryanto
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 1 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

The objective of the research is to know the effect of using NPK (Nitrogen-Phosphor-Potassium) fertilizer and EMAS (Enhancing Microbial Activities in the Soil) biofertizers combined with GRS (Growth Regulating Substances) to the vegetative growth of young pepper plants. The research used Complete Randomized Design with One Way Analysis of Variance, Regression, and Correlation in order to know the effect of treatment to the vegetative growth of young pepper plants. The research was carried out in Sukahati Village, Cibinong District, Bogor Regency, West Java Province, during three months from July to October 2001.The results of the research showed that the use of NPK fertilizer (with dosage 2,5 gr/plant) combined with GRS Atonik and Ethrel will increase the vegetative growth of young pepper plants significantly to a high of 13,0 cm or 17,4 % and 12,5 cm or 16,8 % respectively. The use of EMAS biofertilizer (with dosage 2,5 gr/plant) combined with GRS Atonik and Ethrel will increase the vegetative growth of young pepper plants significantly to a high of 21,2 cm or 28,5 % and 18,1 cm or 24,3 % respectively. Moreover, the use of NPK fertilizer (with dosage 5,0 gr/plant) combined with GRS Atonik and Ethrel will increase the vegetative growth of young pepper plants significantly to a high of 22,2 cm or 29,8 % and 20,3 cm or 27,2 % respectively. The use of EMAS biofertilizer (with dosage 5,0 gr/plant) combined with GRS Atonik and Ethrel will increase the vegetative growth of young pepper plants significantly to a high of 28,2 cm or 37,9 % and 26,6 cm or 35,7 % respectively.

PEMETAAN TEKNOLOGI INDUSTRI KELAPA SAWIT NASIONAL DAN KEBIJAKAN PENGEMBANGANNYA Subiyanto, Subiyanto
Jurnal Sains dan Teknologi Indonesia Vol. 13 No. 1 (2011)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Palm oil industry in Indonesia has been growing rapidly. But, unfortunately the growth is only effective on upstream industry with low value products, such that potential downstream value added are not explored proportionally. The government is therefore in the process of developing an appropriate policy to strengthen the national palm oil downstream industry. This paper proposes that an approriate policy for developing palm oil downstream industry could be derived from the maps of value chain and existing technology capability of the industry. The result recommends that government policy should emphasize on the supply of raw materials, infrastructure and utilities, as well as developing the missing value chain industry, especially ethoxylation and sulfonation.

PENGEMBANGAN EKONOMI KAWASAN PERBATASAN NEGARA DI KALIMANTAN BARAT Edyanto, CB Herman
Jurnal Sains dan Teknologi Indonesia Vol. 9 No. 3 (2007)
Publisher : Badan Pengkajian dan Penerapan Teknologi

International boundary between two state is an important place where the local resident’s activities are executed. The differences between two countries in the border area include several aspects such as national income per capita which about on frequently give different life colour also among frontier society and social education. The fact is that the social and economic life of Indonesian frontier society are more influenced by requirement and culture of society of Malaysia. The government of Indonesia nowadays attempts to be able to build national program and develop economic activities for frontier society in West Kalimantan Province among others establishing industries and work along with governmentof Malaysia

OPTIMASI PRODUKSI EMPAT VARIETAS JAGUNG HIBRIDA DI KERTOSONO, KABUPATEN NGANJUK sutardjo, sutardjo; Nawfetrias, winda
Jurnal Sains dan Teknologi Indonesia Vol. 14 No. 1 (2012)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Maize hybridization system would help Indonesia to become a maize exporter. But the development of maize hybrids in Indonesia is seemed too slow, this impacting in national maize production, which was only 13 million ton per year in 2003. In 2009, the maize hybrid has been planted in about 54% of maize yields. Fertilizing maize is on the most essential and critical parts about growing maize. The objective of the study was to obtain the maximum dosage of composed fertilizer for the highest productivity among four hybrids maize variety in dependingsoil type. The result showed that the prospecting hybrid variety of BI-1 has a maximum production yield of 7.7 ton/ha at the level of fertilizer 1,200 kg/ha and it was only 6.3 ton per ha at zero level fertilizer. Amount of 7.4 ton/ha was achieved by BI-3 maize hybrid at the level of 1,200 kg/ha fertilizer, where those only 5.8 ton/ha at the zero level of fertilizer. The highest productivity was archived by BI-4 where it was 7.1 ton/ha at zero level fertilizer and the highest production yield of 9.2 ton/ha at 900kg/ha of fertilizer, but it was decrease at the level of 1,200 kg/ha fertilizer. Maize variety of DK979 achieved highest productivity of 8.6 ton/ha at 1,200 kg/ha fertilizer and 5.8 ton/ha at zero level fertilizer.

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