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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) MEDIA KONSERVASI Forum Pasca Sarjana Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Reaktor Bioma : Berkala Ilmiah Biologi SAINS DAN MATEMATIKA Jurnal Ilmu Lingkungan Jurnal Natur Indonesia Ganendra: Majalah IPTEK Nuklir Jurnal Ilmiah Aplikasi Isotop Radiasi Microbiology Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology Journal of Tropical Soils Jurnal Sosial Ekonomi Pertanian Jurnal Agro Teknologi Tropika Indonesian Journal of Agricultural Science Jurnal Hortikultura Jurnal Agro Ekonomi Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Jurnal Sumberdaya Lahan Buletin Penelitian Tanaman Rempah dan Obat JTSL (Jurnal Tanah dan Sumberdaya Lahan) Wacana, Jurnal Sosial dan Humaniora Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Jurnal Solum Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Planta Tropika Jurnal Tataloka MAJALAH ILMIAH GLOBE SAINS TANAH - Journal of Soil Science and Agroclimatology Jurnal Penelitian Pertanian Tanaman Pangan Journal of Regional and Rural Development Planning Jurnal Penelitian Kelapa Sawit EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup JURNAL PANGAN Jurnal Agro Ekonomi Buletin Penelitian Tanaman Rempah dan Obat Jurnal Sumberdaya Lahan Jurnal Tanah dan Iklim
Atang Sutandi
Departemen Ilmu Tanah Dan Sumber Daya Lahan, Fakultas Pertanian Institut Pertanian Bogor, Jl. Meranti Kampus IPB Dramaga Bogor 16680
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Studi Intensitas Cahaya Dan Cendawan Mikoriza Arbuskula Pada Permudaan Alam Ramin (Gonystylus Bancanus (Miq.) Kurz) (Study on Arbuscular Mycorrhizal Fungi and Light Intensity to the Natural Regeneration of Ramin (Gonystylus bancanus (Miq.) Kurz)) Abdurrani Muin; Yadi Setiadi; Sri Wilarso Budi; Irdika Mansur; Endang Suhendang; Supiandi Sabiham
Jurnal Manajemen Hutan Tropika Vol. 12 No. 3 (2006)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The objective of this research is to find out the early information of optimum light intensity and highest mycorrhizal colonization on natural Ramin seedling which it includes in semitolerant plant. The research was conducted in Ramin Natural Forest of Sungai Pelunjung Labai, Sanggau District, West Kalimantan for a year. The results of the research show that there are correlations between light intensity with mycorrhizal colonization. Ramin seedling which grown under the light intensity 3190 – 9500 lux have high mycorrhizal colonization and their growth better than the other treatment. Meanwhile Ramin seedling which grown in closed area or in open area with light intensity less than 1670 lux and more than 10840 lux respectively have lower mycorrhizal colonization and their growth was lower.Key words: Ramón seedling  (G. bancnus), Light intensity and Mycorrhizal Fungi
Alternatif Perbaikan Kesuburan Tanah Gambut Tebal Abdul Rachim; Atang Sutandi; Syaiful Anwar; Budi Nugroho
Jurnal Ilmu Pertanian Indonesia Vol. 1 No. 2 (1991): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The soil fertility...
Uji Aktivitas Lakase dan Selulase pada Lignoselulosa Gambut dengan Berbagai Kadar Air Ronny Mulyawan; Lilik Tri Indriyati; Happy Widiastuti; Supiandi Sabiham
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 1 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.74 KB) | DOI: 10.18343/jipi.24.1.20

Abstract

The degradation of lignocellulose as the main constituents of peat is catalyzed by enzymes such as laccase or cellulase. The purpose of this research was to study the pattern of laccase and cellulase activities on sterile and non-sterile peat materials at three different water contents (125-175, 225-275, and 325-375%). The peat soil used was collected from oil palm rhizosphere in Riau Province. This research used the descriptive method by comparing the mean values between treatments. The results showed that enzymes activities on sterile and non-sterile peat added with laccase or cellulase were higher compared to those without enzyme addition. The highest laccase activity was at the first day of incubation, while that for selulase was at the 10th days of incubation. The activity of enzyme then decreased with the increase in the respected incubation time. The difference in decreasing of lignin and cellulose content at 125-175% water content was higher than at the other water contents. The decreases in lignin and cellulose contents were higher by addition of respected enzymes both in sterile and non-sterile peat. It could be concluded that at higher water content, laccase and cellulase activities were depressed both on sterile and non sterile peat, especially after the addition of enzyme.
Spesiasi Aluminium Terlarut dan Sifat Kimia Ultisol yang Diameliorasi dengan Dolomit dan Lignit-Teraktivasi Fahmi Arief Rahman; Budi Nugroho; Atang Sutandi; Untung Sudadi
Jurnal Ilmu Pertanian Indonesia Vol. 26 No. 1 (2021): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.26.1.42

Abstract

Phytotoxicity of soil aluminum (Al), both directly to the plant growth as well as indirectly through the increase of soil potential acidity, is closely related to the occurrence of various soil soluble-Al species. Amongst them, Al3+ and monomeric-Al species are the primary causes of Al phytotoxicity in soils with high Al content. This study was aimed to evaluate the effects of soil amelioration with dolomite and base-activated lignite (BAL) on changes in soluble-Al species and other soil chemical properties, and vegetative growth of soybean (Glycine max Merr) on Ultisol of Jasinga (Al-dd 16,03 cmol(+)/kg). A green house experiment was conducted by applying a Completely Randomized Design with dolomite and BAL amelioration as the treatments, each with three levels of repectively 0, 1, 1,5 x exchangeable-Al and 0, 2,5, 5 tons BAL ha-1, and three replications. The ameliorants were incubated at field capacity of soil moisture content for one week before planting soybean for one month. Soil soluble-Al speciation was carried out using colorimetric aluminon method to determine concentrations of total soluble-Al, monomeric-Al, and polymeric-Al species. Monomeric-Al were further speciated into inorganic monomeric-Al and organic monomeric-Al species. The results revealed that only dolomite amelioration that significantly increased soil pH-H2O, pH-KCl, Ca- dd, Na-dd, and decreased exchangeable-Al concentration, except for those of all soluble-Al species that only showed a decreasing trend. Soil exchangeable-Al that was negatively and significantly correlated with soybean measure parameters were plant height, root length, total roots and shoots wet and dry weights, as well as Ca concentration. These results indicated that soil Al phytotoxicity evaluation could be relied on the result of routine analysis on soil exchangeable-Al concentration. Keywords: exchangeable-Al, inorganic monomeric-Al, organic monomeric-Al, polymeric-Al
Pengelolaan dan Pemupukan Fosfor dan Kalium pada Pertanian Intensif Bawang Merah di Empat Desa di Brebes Muliana; Syaiful Anwar; Arief Hartono; Anas D. Susila; Supiandi Sabiham
Jurnal Hortikultura Indonesia Vol. 9 No. 1 (2018): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.407 KB) | DOI: 10.29244/jhi.9.1.27-37

Abstract

ABSTRACTThe management and fertilization of shallot cultivation in Brebes is very intensive. The purpose of this research was to study crop management and phosphorus (P) and potassium (K) fertilizations of shallot cultivation by smallholder farmers in four villages in Brebes. The data were collected through survey method, interview, and questionnaires to 14 respondent farmers, and analysis of P and K content of farmer's soil samples. The results showed that the cropping index (IP) was 400-500% comprised of three to four times of shallot cultivation and one rice cultivation. The fertilizations of P and K were 22-171 kg of P2O5 ha-1 and 22-213 kg K2O ha-1, respectively, while the recommended rates were 54 kg P2O5 ha-1 and 78 kg K2O ha-1, respectively. This varied fertilizations were not significantly correlated with productions, except fertilization of K with production in rainy season that was significantly correlated at P < 0.05 (n = 14, r = 0.532). The soil P status was very high at all locations and at all depths (0 - 80 cm), while the soil K status ranged from medium to very high. Keywords: nutrient accumulation, nutrient availability, nutrient residue, nutrient status, smallholder farmersABSTRAKPengelolaan dan pemupukan pada budidaya bawang merah di Brebes sangat intensif. Tujuan penelitian ini ialah mengkaji pengelolaan pertanaman dan pemupukan fosfor (P) dan kalium (K) bawang merah yang dilakukan petani di empat desa di Brebes. Pengumpulan data dilaksanakan melalui metode survei, wawancara, dan pengisian kuisioner kepada 14 petani responden, dan analisis kadar P dan K sampel tanah lahan petani responden. Hasil penelitian menunjukkan bahwa indeks pertanaman (IP) adalah 400-500% dengan pertanaman bawang merah tiga sampai empat kali dan satu kali pertanaman padi. Pemupukan P dan K berturut-turut berkisar 22–171 kg P2O5 ha-1 dan 22–213 kg K2O ha-1, sementara rekomendasi Distan Brebes berturut-turut adalah 54 kg P2O5 ha-1 dan 78 kg K2O ha-1. Pemupukan bervariasi ini tidak berkorelasi nyata dengan produksi, kecuali pemupukan K dengan produksi pada musim hujan yang berkorelasi nyata pada taraf 5% (n=14, r=0.532). Status P tanah sangat tinggi pada semua lokasi dan pada semua kedalaman (0 – 80 cm), sementara status K tanah lebih bervariasi, yaitu dari sedang sampai sangat tinggi.Kata kunci: akumulasi hara, ketersediaan hara, petani kecil, residu hara, status hara
Correlation Study on pottasium in Ultisols for Shallot (Allium ascalonicum L.) Indarti Puji Lestari; Anas D. Susila; Atang Sutandi; Dedi Nursyamsi
Jurnal Hortikultura Indonesia Vol. 11 No. 1 (2020): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jhi.11.1.41-50

Abstract

Penentuan kadar hara tanah memerlukan metode ekstraksi yang sesuai antara tanah dan tanaman yang dikehendaki. Tujuan penelitian adalah untuk menetapkan metode ekstraksi K tanah terbaik untuk bawang merah di tanah Ultisol dengan pendekatan lokasi tunggal. Penelitian dilaksanakan di Lebak, Provinsi Banten pada Maret 2015 – Mei 2016, dengan dua tahapan yaitu pembuatan status hara K tanah dan uji korelasi K tanah melalui penanaman di rumah kaca. Pembuatan status hara K tanah terdiri atas sangat rendah sampai sangat tinggi (0X, 1/4X, 1/2X, 3/4X, dan X), nilai X merupakan nilai erapan hara K tertinggi, sebesar 509.6 kg K2O ha-1. Pada kegiatan tersebut pupuk K diinkubasi selama tiga bulan, selanjutnya pengambilan sampel tanah pada masing-masing petak untuk dianalisis kadar K tanah. Kadar K tanah dianalisis menggunakan lima macam metode ekstraksi yaitu Bray I (larutan 0.025 N HCl + NH4F 0.03 N), Bray II (NH4F 0.03 N + HCl 0.10 N), Mechlich I (0.0125 M H2SO4 + 0.05 M HCl), HCl 25% dan Olsen (NaHCO3 0.5 M, pH 8.5). Uji korelasi K dilaksanakan di rumah kaca menggunakan Rancangan Acak Lengkap (RAL), jumlah ulangan lima. Hasil penelitian menunjukkan pembuatan status hara K tanah meningkatkan kadar K di dalam tanah dengan indikator bobot kering tajuk memberikan pola respon quadtratik. Metode ekstraksi hara K tanah terbaik untuk bawang merah di tanah Ultisol adalah Mechlich I, dengan nilai koefisien korelasi sebesar 0.77. Hasil penelitian ini dapat digunakan untuk penetapan rekomendasi pemupukan K pada bawang merah di tanah Ultisol. Kata kunci: Status hara K, ekstraktan K, dosis pemupukan K
Soil Factor Influencing Mangrove Forest Community Occurence in Talidendang Besar, Riau Cecep Kusmana; Supiandi Sabiham
Media Konservasi Vol 3 No 3 (1991): Media Konservasi
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (820.865 KB) | DOI: 10.29244/medkon.3.3.%p

Abstract

This study was undertaken to investigate the soils factors influencing the mangrove forest community occurrence in Talidendang Besar, Riau. One sample plot of 50 m x 50 m was established at hguiera panlifora community. B. se~ngulacommunity, and mixed B. scxangula - Nypa fnrticans community to explore its vegetation composition and soil characteristics. The soil factors such as pII, EC (electrical conductivity), 70 K. '% Na, C-organic, N-total, NH4 (ammonia), and CEC (cation exchange capacity) were regarded as soil factors to be important in influencing the occurrence pattern of mangrove forest community in Talidendang Besar. hau. Keywords: mangrove, Talidendang Besar, Riau, forest communig.
Potential Analysis of Rubber Smallholding Development in Mandailing Natal Regency, North Sumatera Province Hadijah Siregar; Santun R.P. Sitorus; Atang Sutandi
Forum Pasca Sarjana Vol. 35 No. 1 (2012): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

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Abstract

Development of preminent commodity of rubber is one of Mandailing Natal Regency  Government’s strategy to improve society prosperity. To support the mentioned things, this research was conducted with purpose of determining location  suitability for the development of  rubber plantation  based on land evaluation, analysing of financial and marketing feasibilities of rubber smallholding, and analysing the directive of rubber smallholding potential development in Mandailing Natal  Regency by using mapping and descriptive analysis. The  research result shows that acreage of potential area for the development of rubber plantation  in Mandailing Natal Regency is 460 849 ha (70.41%). Financially, the enterprise of rubber  smallholding in every land suitability class is feasible. The market chain of rubber in Mandailing Natal Regency  is not efficient enough. The location which is able to be recommended for the development of rubber plantation in Mandailing Natal Regency based on potential location, financially and relevant government regulations is 201 875 ha (30.84%). The performance of rubber smallholding  plantation in Mandailing Natal Regency  is influenced by agricultural extension service officer, the availability  of farmer group, rubber productivity and availability of agricultural infrastructure. Nowdays, rubber processing factory should be built in Mandailing Natal, considering that raw materials are widely available and added value will contribute for regional development.
PENINGKATAN IKATAN P DALAM KOLOM TANAH GAMBUT YANG DIBERI BAHAN AMELIORAN TANAH MINERAL DAN BEBERAPA JENIS FOSFAT ALAM W. Hartatik; Komarudin Idris; Supiandi Sabiham; Sri Djuniwati; J. Sri Adiningsih
Jurnal Ilmu Tanah dan Lingkungan Vol 6 No 1 (2004): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2434.945 KB) | DOI: 10.29244/jitl.6.1.22-30

Abstract

Peat soils have very low capacity in retaining P. Mineral soils rich in Fe could be used as ameliorant in increasing this capacity. The aim of this experiment was to study the use of three rock phosphates and SP-36 on peat amended with mineral soil in increasing P retention. The experiment was conducted in the laboratory of the Centre for Soil and Agroclimate Research and Development, Bogor. P treatments consist of four P fertilizer sources including Morocco rock phosphate, Christmas rock phosphate, Ciamis rock phosphate, and SP-36, and three P level (50, 100 and 200% of P sorption) plus partial and complete control in 2 replications. The experiment conducted in the soil column made from PVC pipe 4 inches in diameter. The column was filled with 1,250 g peat dry weight (10.5 oC), 250 g of which was amended with mineral soil and each of three rock phosphates or SP-36, and put on as the upper part of the column and incubated for 4 weeks. Leaching was conducted every day, with 50 cc distilled water for 12 days. The filtrate was collected in 500 cc Erlenmeyer glass, and soluble P was analyzed. After this step peat in the colu~nnw as divided into seven depth that was 0-5, 5-10, 10-20, 20-30, 30-40, 40-50 and 50-60 cm, then P-Bray I was analyzed. The results showed that the application of Morocco and Ciamis rock phosphates on peat amended with mineral soil after leaching, resulting in the accumulation of P on the upper layers, suggesting that P retention on peat was increased such that P loss could be reduced. The ratio of P content in the soil column at 0-30 cm and 30-60 cm depth for Morocco rock phosphate on the dosages of 50, 100 and 200% of P sorption were 1.54; 1.90; and 2.79, respectively, and that for Ciamis rock phosphate were 1.64; 1.76 and 4.11, respectively. The application of Christmas rock phosphate resulted in P accumulation at 30-40 cm depth. The ratio of P content in soil column treated with Christmas rock phosphate at 0-30 cm and 30-60 cm depth on dosages of 50, 100 and 200% of P sorption were 1.05; 1.11 and 1.38, respectively, suggesting that P was leached to the bottom layer. It seems that high Fe in Christmas rock phosphate did not contribute to an increase of P retention. Although the application of SP-36 resulted in P accumulation at the upper layers, P leaching was higher. Keywords: Amelioration, Peat, Phosphorus fertilization, Phosphorus retention
NILAI MUATAN TITIK NOL (MTN) DAN HUBUNGANNYA DENGAN ERAPAN KALIUM PADA TANAH GAM BUT PANTAI JAMBI DAN KALIMANTAN TENGAH R. Purnamayani; Supiandi Sabiham; Sudarsono .; L. K. Darusman
Jurnal Ilmu Tanah dan Lingkungan Vol 6 No 2 (2004): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (408.319 KB) | DOI: 10.29244/jitl.6.2.75-82

Abstract

One of the important chemical aspects of peatland management which has not been paid attention to is Zero Point of Charge (ZPC). By determining soil ZPC value, the sorption and bounding of cations can be estimated in certain pH.value. Low of Potassium (K) is one of the other problems of peatland This nutrient is easily leaching from peat because of the weakness bounding. This research is aimed to determine ZPC value and maximum sorption of K of the coastal peats of Jambi and Central Kalimantan with decomposition degrees of sap ric, hemic, and fabric. The location of this research is in Soil Chemical and Fertility Laboratory, Department of Soil Science, Faculty of Agriculture IPB Bogor, from September 2000 - March 2001. Soil samples were taken from two areas, Lagan (Jambi) and Samuda (Central Kalimantan). The determinations of K maximum sorption was carried out on 4 pH level as treatments (0.25 point below and above pHZPC. 0.50 point above pHZPC and at pHZPC. It was concluded that ZPC value of coastal peats of Jambi with decomposition degrees of sapric was 5.01, decomposition degrees of hemic was 4.13, and decomposition degrees of fibric was 4.56, while coastal peats of Central Kalimantan with decomposition degrees of sapric was 4.25, decomposition degrees of hemic was 4.28, and decomposition degrees of fibric was 4.48. Jambi peat with sapric decomposition level has the lowest K maximum sorption at Zpc. In contrast, Central Kalimantan peat with sapric decomposition level has the highest K maximum sorption. Keywords: Peat, potassium, sorption, ZPC
Co-Authors -, Bachtiar -, Manuwoto . ACHMADI . NURWADJEDI . Suwarno A.A. Ketut Agung Cahyawan W Abdul Hasyim Sodiq Abdul Rachim Abdurrani Muin Adhy Ardiyanto Agung Lukman Agus Sofyan Alce Ilona Noyaa Anas D Susila Anas D Susila Anas D. Susila Anas D. Susila Anas Dinurrohman Susila Andrea Emma Pravitasari, Andrea Emma Anggi Nico Flatian, SP Aris Poniman Baba Barus Bachtiar Bachtiar Bambang Paramudya Bambang S Purwoko Bandung Sahari Bandung Sahari BANDUNG SAHARI Bargowo Addianto Bariot Hafif Bariot Hafif Bariot Hafifa Basuki Sumawinata Bayu Sejati Boedi Tjahjono Budi Mulyanto Budi Nugroho Budi Nugroho Darmono Taniwiryono Darmono Taniwiryono Dedi Nursyamsi Dedi Nursyamsi Desi Nadalia Didy Sopandie Djoko Purnomo DWI ANDREAS SANTOSA Dwi Guntoro Edi Santosa Edwin Hidayat, Edwin Edy Djauhari Purwakusumah Eko Noviandi Ginting Endang Gunawan Endang Suhendang Enni Dwi Wahjunie Fahmi Arief Rahman Fahmuddin Agus Fakhrur Razie Fakhrur Razie Ganjar Priadi Gunawan Djajakirana Hadijah Siregar Handayani, Etik Puji Happy Widiastuti Happy Widiastuti Hartono, Arif Hendri Purnama Herison, Catur Hermanto Hermanto Heru B. Pulunggono Heru Bagus Pulunggono Husni Mubarok Husni Mubarok Husni Mubarok Husni Mubarok I Nyoman Sujana I Wayan Mangku I Wayan Rusastra Ibnul Qoyim, Ibnul Idris, Kamarudin Idris, Komaruddin Ilona Noyaa, Alce Indarti Puji Lestari Indriyati, Lilik Tri Irawati, Arfi Irdika Mansur Irsal Las Ishak Ishak Ishak Ishak Ishak Ishak Iswandi Anas Iswandi Anas Iswandi Anas Iswandi Anas Iswandi anas Iswandi Anas Ivanocih Agusta Ivanovich Agusta J. Sri Adiningsih K Kasmadi Kasmadi Kasmadi Kasmadi Kasmadi Khursatul Munibah Komarsa Gandasasmita Komarsa Gandasasmita Komaruddin Idris Komarudin Idris KOMARUDIN IDRIS Kukuh Murtilaksono Kusuma Handayani L. K. Darusman Latifah K. Darusman Latifah Kosim Darusman LATIFAH KOSIM DARUSMAN Lina Lathifah Nurazizah Lina Lathifah Nurazizah Luh Putu Ratna Sundari Lukman Gunarto Luthfi Izhar M. ALWI Machfud Machfud Manuwoto - MARIA BINTANG Maryadi Maryadi Maryadi Maryadi Maswar Maswar Maswar Maswar Maya Melati Meine Van Noordwijk Meine van Noordwijk Meine Van Noordwijk Miftahudin . Mimien Harianti Moh Zulfajrin Moh Zulfajrin Moh Zulfajrin Moh Zulfajrin Mohamad Rafi Muchammad Sri Saeni Muhadiono Muhadiono, Muhadiono Muhammad Amir Solihin Muhammad Amir Solihin Muhammad Ardiansyah muhammad Firdaus Muhammad Thamrin Muhammad Zulfikar Muliana Mulyawan, Ronny Munif Ghulamahdi Muya Avicienna Nabila Hanifah Natalia, Rina Nelvia Nelvia nFN Thamrin NISA RACHMANIA MUBARIK Nizam Tambusai Nizam Tambusai Novia Mustikasari Nurliani Bermawie Ohiwal, Morgan Oteng Haridjaja Paulus B.K. Santoso Priyo Cahyono Priyo Cahyono, Priyo R. Purnamayani Rachim, Djunaedi Abdul RACHMI WIDIRIANI RAHAYU WIDYASTUTI RASTI SARASWATI Retno Wijayanti Rika Andriati Sukma Dewi Rina Natalia Rury Kurniawan Ruslan - Rykson Situmorang S Susanto S. Anwar S. HADI SUTJAHJO Saeful Anwar Saeni, Muchammad Sri Safira Sukma Hanjani Sandra Arifin Aziz Santun R. P. Sitorus Santun R.P Sitorus Santun R.P. Sitorus Santun Risma Pandapotan Sitorus Santun Risma Pandepotan Sitorus Septiyana, . SETIARI MARWANTO Siska Nofita Siswanto Siswanto Siswanto Sisworo, Widjang Herry Siti Maryam Harahap Siti Maryam Harahap Siti Nurzakiah Siti Nurzakiah Siti Nurzakiah Sri Djuniwati Sri Djuniwati Sri Juniwati Sri Nico Djuniwati Sri Widodo Agung Suedy Sri Wilarso Budi Sudarsono Sudarsono . Sugiyanta Sukarman Sukarman Sumardjo Supiandi Sabiham Suprihati Suria Darma Tarigan Surjono H. Sutjahjo Susanto, Bambang Sutjahjo, Surjono H. Suwondo Suwondo Suyamto Suyamto Suyamto Suyamto Suyamto Suyamto Syaiful Anwar Syaiful Anwar Syamsul Arifin Syva Fitriana Taopik Ridwan TATI NURHAYATI Taufiq Bachtiar Taufiq Bachtiar Thamrin, nFN Toyip Toyip Untung Sudadi W. Hartatik Widiatmaka Yadi Setiadi