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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vegetalika Jurnal Ilmu Pertanian Perkebunan dan Lahan Tropika Journal of Tropical Soils Indonesian Journal of Agricultural Science Jurnal Ilmu-Ilmu Pertanian Indonesia Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science agriTECH Jurnal Planta Tropika SAINS TANAH - Journal of Soil Science and Agroclimatology Caraka Tani: Journal of Sustainable Agriculture Jurnal Penelitian Pertanian Tanaman Pangan Jurnal Irigasi jurnal Ilmu Pertanian (Agricultural Science) Asian Journal of Agriculture Soil REns AGROSCRIPT Journal of Applied Agricultural Sciences Jurnal Tanah dan Iklim Journal of Smart Agriculture and Environmental Technology AGRIC Open Access DRIVERset
Benito Heru Purwanto
Department Of Soil Science, Faculty Of Agriculture, Gadjah Mada University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Social Sciences Veterinary

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EFFECTS OF AMELIORANT COMPOSITIONS ON NITROGEN MINERALIZATION AND UPTAKE BY SWEET CORN IN DEGRADED PEATLAND Maftu’ah, Eni; Purwanto, Benito Heru
Indonesian Journal of Agricultural Science Vol 15, No 1 (2014): April 2014
Publisher : Indonesian Agency for Agricultural Research and Development - MOA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Peat soil is characterized by poor nitrogen (N) availability. Ameliorants are expected to rectify this problem. This research  aimed to study the effect of ameliorant on N availability and N uptake by sweet corn plant in degraded peatland. The experiment was conducted in the greenhouse in May-July 2011 and on peatland of Kalampangan Village, Palangkaraya, Central Kalimantan in September-December 2011. Burnt peat soil of Kalampangan was used in the greenhouse experiment and sweet corn was used as an indicator plant. The treatments consisted of two factors, i.e. compositions of ameliorants by weight (A1 = 80% chicken manure + 20% dolomite; A2 = 80% local farm weed + 20% dolomite; A3 = 80% mineral soil + 20% dolomite; A4 = 20% chicken manure + 20% local farm weed + 20% residue of Chinese water chestnut (Eleocharis dulcis) + 20% mineral soil + 20% dolomite; and A5 = 19% chicken manure + 71.5% mineral soil + 9.5% dolomite) and rates of those ameliorants (5, 10, 15, 20 and 25 t ha-1). The experiment was arranged in a completely randomized block design with three replications. Data were collected every two weeks for five times. Observations were made on soil pH, available N (NH4+, NO3-), plant height, and N uptake in root and shoot. The results showed that  treatment A1 increased soil pH and availability of NH4+ and NO3-  in peat soils at the maximum vegetative stage. Treatment A1 provided the highest N availability and N uptake by the plant. Field experiment showed that N uptake increased  with the plant yield. Optimum yield of fresh corn cob was obtained from treatment A1 at the rate of 20 t ha-1. This research reconfirms the effectiveness of chicken manure and dolomite as peat soil ameliorant.
Pengaruh Pupuk Majemuk NPK + Zn terhadap Pertumbuhan, Produksi dan Serapan Zn Padi Sawah di Vertisol, Sragen Devangsari, Imas Masithoh; Maas, Azwar; Purwanto, Benito Heru
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 4, No 2 (2016)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2016.059.75-83

Abstract

Vertisol is a soil that has neutral to slightly alkaline pH. Zinc availability decreases with increasing pH. The existence of symptoms micronutrients scarcity, especially zinc, also caused by the use of highly yielding seeds with unbalanced fertilization. In addition, Zn uptake by plants is sustainability process which resulted in a decrease in nutrient levels of Zn in the root zone. The aim of the research was to determine the optimum Zn formula that can be added to the NPK compound fertilizer and to determine the effectiveness of the fertilizer on the growth and yield of rice. The experiment was arranged by completely randomized block design with 10 treatments and 3 replicates of each treatment. NPK compound fertilizer dose was given 300kg / ha. The result of this study showed that the compound fertilizer NPK + Zn had no effect on plant height, number of tillers and weight of the plant. The additional dose compound of 2% Zn to the dose of compound fertilizer NPK + Zn did not increase the yield. There was a tendency NPK treatment +0.75% Zn deliver the highest results. NPK compound fertilizer application + Zn significantly increased the uptake of Zn.
Pengaruh Nitrogen dan Silika terhadap Pertumbuhan dan Perkembangan Spodoptera litura (Lepidoptera: Noctuidae) pada Kedelai Trisnawati, Dina Wahyu; Putra, Nugroho Susetya; Purwanto, Benito Heru
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 5, No 1 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2017.071.52-61

Abstract

A study was conducted to establish the indirect effects of nitrogen (N) and silicon (Si) on the growth and development of Spodoptera litura on soybean. A full-factorial experiment was arranged in 4x2 factors: first factor was nitrogen with varied doses of 0, 25, 50, and 100 kg/ha; second factor was silicon at 0 and 200 g/m2. The results demonstrated that the application of N and Si indirectly affected the growth and development of S. litura including leaves consumed, weight of larvae, weight of pupal, fecundity and survivorship. In addition, combination of nitrogen and silicon also affected the growth and development of soybean as evidenced by the decreased absorption of Si by soybean following the application of N, while the application of Si combined with high nitrogen doses decreased the absorption of Si. It was also observed that the effect of N was not significant on the growth and development of S. litura.  The application of Si with the high N doses, however, decreased the growth and development of S. litura. It is, therefore, concluded that the mechanism of relationship between N and Si on S. litura could not be explained only by quantifying the absorption value of N and Si.
Short Communication: Volcanic ash utilization as planting medium of curly lettuce with charcoal husk and urban waste compost as soil amendment MULYONO, NITISAPTO; MAAS, AZWAR; PURWANTO, BENITO HERU; SUDIRA, PUTU
Asian Journal of Agriculture Vol 2 No 02 (2018)
Publisher : Society for Indonesian Biodiversity & Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g020201

Abstract

Mulyono, Maas A, Purwanto BH, Sudira P. 2018. Short Communication: Volcanic ash utilization as planting medium of curly lettuce with charcoal husk and urban waste compost as soil amendment. Asian J Agric 2: 39-43. During a volcanic eruption, volcanic ash spreads over an extensive area, causes environmental disturbances, and thus, should be disposed afar from settlements. On the other hand, volcanic ash is useful in urban areas where pot-planting is often lack soil medium. However, the utilization of volcanic ash as direct planting medium has many obstacles due to its characteristics such as the acidic, nitrogen nutrients rareness, compressed and dull to water. Hence, to be ready to use, it should be improved by using soil amendment. This study used charcoal husk combined with compost as the soil amendment. The purpose of this study was to use the volcanic ash as the planting medium, by obtaining a proper dose of volcanic ash and the soil amendments for the growth and yield of curly lettuce. The experimental design applied in this study was the complete randomized design (CRD) with three replications. The first factor was the 5 levels of charcoal husk (on volcanic ash) doses, namely 0.30; 0.40; 0.50; 0.60; and 0.70. The second was the ratio between the media and the 3 levels of urban waste compost doses, namely: 3:1; 2:1 and 1:1, resulting in 5 x 3 total combinations with three replications. The plant growth and yield data results were analyzed by using the variance analysis and continued with Duncan Multiple tests (Duncan Multiple Range Test). The results showed that when used as the sole planting medium, the volcanic ash could not support the growth of lettuce plants. The evidence was shown from the same size and weight of the curly lettuce after the age of 35 days (5 g/plant). The utilization of husk and urban waste compost treatment showed significant growth rise. The combination of volcanic ash and soil amendments showed that the best effect on the growth and yield of curly lettuce was from M3K3 treatment at the dose of 25% volcanic ash, 25% charcoal husk and 50% urban waste compost (60 g/plant).
Pengelolaan Genangan Air Dangkal untuk Meningkatkan Hasil Padi dengan Kerangka Kerja System of Rice Intensification (SRI) Maftukhah, Rizki; Erni R, -; Purwanto, Benito Heru; Sri R, -; Arif, Sigit Supadmo
Jurnal Irigasi Vol 10, No 1 (2015): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (599.313 KB) | DOI: 10.31028/ji.v10.i1.41-48

Abstract

Nowadays, the issues of water scarcity, high fertilizer cost, and negative environmental impacts due to high agrochemicals use are escalating so that the improvement of resource efficiency on rice cultivation is necessary. Based on many studies, SRI is a very promising approach. Pot experiment was conducted under SRI framework with continuous flooding (CF), shallow water depth (SWD), and field capacity (FC) irrigation; together with four different doses of organic fertilizer (F100, F50, F0, and LF). The aim of this study is to figure out the effect of water and organic fertilizer managements on rice performances. Our experiment showed soil Eh was significantly different between three water management treatments (p < 0.05) where FC gained the highest soil Eh, followed by SWD and CF. Whereas, organic fertilizer management gave insignificant effect on soil EH. Under SWD management, number of tillers was significantly higher than CF and FC. On the other hand, water management and organic fertilization had no significant effect on plant height. SWD significantly increased yield and biomass followed by CF and FC. Organic fertilizer caused significant reduction on number of tiller, yield and biomass. In conclusion, SWD provided better environment for rice growth and enhance the rice performances, while the effect of organic fertilizer was not clearly seen.
PENGARUH KUALITAS BAHAN ORGANIK DAN KESUBURAN TANAH TERHADAP MINERALISASI NITROGEN DAN SERAPAN N OLEH TANAMAN UBIKAYU DI ULTISOL Wijanarko, Andy; Purwanto, Benito Heru; Indradewa, Didik
Perkebunan dan Lahan Tropika Vol 2, No 2 (2012): PERKEBUNAN DAN LAHAN TROPIKA
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (197.199 KB) | DOI: 10.26418/plt.v2i2.3484

Abstract

Bahan organik tanah sangat berpengaruh terhadap kesuburan tanah dan produksi biomassa tanaman. Kualitas bahan organik merupakan salah satu kunci dalam menjaga kelestarian tanah, tanaman dan lingkungan. Penelitian ini bertujuan untuk mempelajari pengaruh kualitas bahan organik dan kesuburan tanah terhadap mineralisasi N. Untuk mengestimasi parameter mineralisasi N (potensial mineralisasi N (N0), laju mineralisasi (k), energi aktivasi (Ea) dan N0k) dilakukan percobaan inkubasi di laboratorium, menggunakan persamaan first order. Sedangkan hubungan antara parameter mineralisasi dengan serapan hara N, dilakukan dengan melakukan percobaan pot di rumah kaca. Nilai N0, k dan Ea berturut-turut adalah 400 1156 mg kg-1, 0,0056 0,098 per minggu dan 10166 31478 J mol-1. Parameter mineralisasi N berkorelasi positif dengan N larut air, N-POM, Mikrobiomassa N, C-POM, Mikrobiomassa C, N-total dan nisbah C/N serta berkorelasi positif dengan berat kering tanaman, konsentrasi N dan serapan N tanaman ubikayu. Bahan organik yang mempunyai nisbah C:N rendah dan tanah yang mempunyai tingkat kesuburan yang lebih tinggi mempunyai mineralisasi N yang lebih tinggi, yang ditunjukkan dengan nilai N0, k dan N0.k yang lebih tinggi dibandingkan dengan bahan organik dengan nisbah C:N tinggi dan kesuburan tanah yang rendah. Kata kunci : kualitas bahan organik, kesuburan tanah, mineralisasi N, serapan N
The Growth Performance of Oil Palm Seedlings in Pre-Nursery and Main Nursery Stages as a Response to the Substitution of NPK Compound Fertilizer and Organic Fertilizer Adileksana, Cahyo; Yudono, Prapto; Purwanto, Benito Heru; Wijoyo, Rachmanto Bambang
Caraka Tani: Journal of Sustainable Agriculture Vol 35, No 1 (2020): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.656 KB) | DOI: 10.20961/carakatani.v35i1.33884

Abstract

The need of nitrogen (N), phosphate (P) and potassium (K) nutrient in oil palm nursery are usually fulfilled with synthetic chemical fertilizers such as NPK fertilizer. The application of NPK fertilizer can cause the soil to become hard due to the accumulation of the residue left on the ground. Cow manure is able to substitute NPK fertilizer based on the chemical status of the soil. This study aimed at analyzing the effect of NPK fertilizer substitution with cow manure on the growth of oil palm seedlings in the pre-nurseries and main nurseries. The experiment was conducted from February to September 2018 in the Banguntapan research and experimental field, Faculty of Agriculture, Universitas Gadjah Mada. The experiment applied the Randomized Complete Block Design (RCBD) with one factor and six blocks as replications. The factors were subtitution using the replacement series method with five levels of doses, 100% NPK, 75% NPK + 25% cow manure, 50% NPK + 50% cow manure, 25% NPK + 75% cow manure and 100% cow manure. The observed parameter variables were root lenght, root area, hump diameter, leaf area, the number of leaves, plant height and plant dry matter. The use of 25% NPK substitute with 75% organic material was the best result in increasing the growth performance of oil palm seddlings in pre-nursery and main nursery.
SOIL PROPERTIES UNDER ORGANIC VERSUS CONVENTIONAL VEGETABLE FARMING SYSTEMS IN BOGOR DISTRICT Sukristiyonubowo, Sukristiyonubowo; P, Benito H; Husen, Edi
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 39, No 1 (2015)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v39n1.2015.19-24

Abstract

Abstract. In term of quality, the yield of rice and vegetables of organic farming is better than conventional system. We are interested to study and to compare soil characteristics both in vegetable organic and conventional systems. The experiment was conducted in vegetable organic and conventional farming system in Bogor District from July 2012 to March 2013. Soil composites were sampled both at the sites of organic and conventional vegetable farming systems, before land preparation. Soil samples were grouped into lower, middle and upper slopes. Each soil composite group was collected from ten sampling points and mixed. These samples were analysed for chemical, physical and biological properties. The results indicated that in general the soil characteristics of organic vegetable farming were better than conventional farming systems in term of pH, C organic, total N, P and K extracted with HCl 25%. The soil pH in organic farming was 5.70 ± 0.50 and in conventional farming system was 4.79 ± 0.14. The organic C in organic system was 3.07 ± 0.28% and in conventional system was 2.19 ± 0.35%. Total N at organic system was 0.37 ± 0.03% N and in conventional faming system was 0.21 ± 0.05% N. Similarly, physical analysis was observed both in organic and conventional systems. The bulk density in organic farming was 0.70 ± 0.05 g cm-3 and in conventional systems was 0.75 ± 0.03 g cm-3. Microbial C content in soil of organic vegetable farming and conventional farming systems statistically were not significantly different. Dehidrogenase enzyme activities were significantly different. The highest activity of dehidrogenase enzyme was in vegetable organic farming. Soil nematode population in vegetable organic and conventional farming did not show significant difference. It is suggested that soil quality in vegetable organic farming is better than in conventional system. Abstrak. Kualitas hasil padi dan sayuran pada budidaya organik lebih baik ataupun unggul dibandingkan dengan sistem pertanian konvensional. Untuk itu, perlu dipelajari dan diungkap kualitas tanah pada sistem budidaya organik dan konvensional. Percobaan dilaksanakan pada pertanian organik dan konvensional di Kabupaten Bogor dari bulan Juli 2012 sampai dengan Maret 2013. Contoh tanah diambil pada Juli 2012 pada kedua sistem budidaya tersebut. Contoh tanah komposit masing masing dikumpulkan pada lereng atas, tengah dan bawah, dan setiap lerang diambil 10 titik, lalu dicampur dan diambil kurang lebih satu kg contoh komposit untuk setiap lereng. Contoh tanah ini kemudian dibawa ke laboraorium Balai Penelitian Tanah, Bogor untuk dianalisa sifat kimia, fisika dan biologi tanahnya. Hasil pengukuran menunjukkan bahwa secara umum karakteristik tanah pada sistem budidaya organik lebih baik dibandingkan dengan sistem konvensional meliputi pH tanah, C-organik, total P dan K yang diekstrak dengan HCL 25%. Kemasaman atau pH tanah pada budidaya sayur organik adalah 5,70 ± 0,50 dan pada budidaya konvensional 4,79 ± 0,14 C-organik pada budidaya organik 3,07 ± 0,28% dan pada budidaya konvensional 2,19 ± 0,35%. Nitrogen total pada budidaya sayur organik adalah 0,37 ± 0,03% N dan pada sistim konvensional adalah 0,21 ± 0,05% N. Hal yang sama juga terjadi pada pengamatan fisik tanahnya, dimana sistem budidaya organik lebih baik jika dibandingkan sistem budidaya konvensional. Berat Jenis tanah pada budidaya organik 0,70 ± 0,05 g cm-3 dan pada budidaya konvensional 0,75 ± 0,03 g cm-3. Untuk aktivitas mikroba C pada budidaya organik secara statistik tidak berbeda nyata dengan sistem budidaya konvensional. Sementara untuk ensim dehidrogenase menunjukkan perbedaan yang nyata. Enzim dehidrogenase tertinggi terlihat pada sistem budidaya organik, sedangkan untuk populasi nematoda pada budidaya oragnik tidak menunjukkan beda yang nyata dengan sistem budidaya sayur konvensional. Populasi nematoda tertinggi didapat pada budidaya organik di Mega Mendung. Dapat dikatakan bahwa sistem budidaya organik cenderung lebih baik dibandingkan sistem budidaya konvensional.
Land Management for Agriculture After The 2010 Merapi Eruption Utami, Sri Nuryani Hidayah; Purwanto, Benito Heru; Marwasta, Djaka
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 6, No 1 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2018.078.32-38

Abstract

The great eruptions of Mount Merapi in 2010 have drawn a great deal of attention from both national and international media.The month-long eruptions killed more than 200 people, displaced over 100,000 residents, killed over 1,000 livestock and destroyed over 1,000 hectares of productive farming fields. Incidentally, agriculture is one of the livelihood sectors that suffered heavily. Further, it impacted farmers the most as they depend on farming activities as their main source of livelihood. After, the eruption, land management became based on material type and condition of the land.. Principles of land management involve the provision of appropriate environmental needs of plants, the availability of moisture, nutrients, colloidal holding nutrients, and aeration. In short, they entail the technical aspects of recovery after the eruption of plants based on the conditions of the land. Also included are crop diversification (intercropping cultivation, crops rotation, mixed farming, etc) and intensification of yard (horticulture crops, hedge rows); as well as reinforcing of core and source of cattle nutrition, for example gliricedea; fast growing and producing crops are needed but those that need high capital / major costs for planting and care are not required. Furthermore, the concept of post-eruption land arrangements needs to be formulated based on the configuration of the land which is mainly related to local circumstances such as topography, hydrology, meteorology, and natural drainage systems.
Physico-Chemical Properties of Volcanic Soils under Different Perennial Plants from Upland Area of Mt. Merapi, Indonesia Kartikawati, Retno; Hanudin, Eko; Purwanto, Benito Heru
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 7, No 1 (2019)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2019.098.93-102

Abstract

Vegetation recovery is essential in land restoration after the eruption of Mount Merapi in 2010. Vegetation is a source of organic material that produces root exudate containing organic acids. These acids accelerate the dissolution process of volcanic material so that it affects the soil characteristics. This study was conducted to analyze the effect of four types of perennial plants on soil chemical and physical characteristics. The soil samples were taken on the area planted with cinnamon, albizia, bamboo, and acacia, at depths of 0 – 10 cm, 10 – 20 cm, 20 – 30 cm, 30 – 40 cm, and 40 – 50cm. The soil chemical analysis carried out included pH H2O, pH KCl, pH NaF, C-organic, Humic acid and Fulvic acid, cation exchange capacity, Ca, Mg, K, Na, available P, base saturation, and particle size distribution. The results show that pH H2O, pH KCl, C-organic, humic acid and fulvic acid, CEC, K, Na, Ca, Mg, available P, base saturation, and particle size distribution were significantly affected by vegetation type. Meanwhile, the pH of NaF was not significantly influenced by vegetation type. Cinnamon is a plant that gives the strongest influence in the improvement of soil chemical-physical properties compared to the other three types of vegetation. Therefore cinnamon is quite prospective plant to be developed for post-eruption land reclamation.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Syukur Adileksana, Cahyo Amalia Tetrani Sakya Andy Wijanarko Andy Wijanarko Anna Kusumawati Aridinasty Maritasari Arifin Fahmi Arifin Fahmi Arifin Fahmi Arifin Fahmi Fahmi Asih Indah Utami Azwar Ma&#039;as Azwar Maas Azwar Maas Azwar Maas Azwar Maas Azwar Maas Azwar Ma’as Azwar Ma’as Bambang Hendro Sunarminto Bambang Hendro Sunarminto Bambang Hendro Sunarmito BASUKI BASUKI Bayu Dwi Apri Nugroho Bostang Radjagukguk Bostang Radjagukguk Bostang Radjagukguk Bostang Radjagukguk Bostang Radjagukguk Cahyo Wulandari Cahyono Agus Christoporus Sudradjat Widiarso Dian Syafitri Ompusunggu Didik Indradewa Didik Indradewa Dina Wahyu Trisnawati Djaka Marwasta Eka Tarwaca Susila Putra Eka Tarwaca Susilaputra Eko Hanudin Eko Hanudin Eko Hanudin Eko Hanudin Eko Hanudin Eko Hanudin Hanudin Endang Sri Dewi HS Endang Sulistyaningsih Eni Maftu’ah Eni Maftu’ah Eny Faridah Erni R, - Heri Wibowo Husen, Edi Imas Masithoh Devangsari, Imas Masithoh Indradewa, Didik Kartikawati, Retno Keitaro Tawaraya Krishna Aji Kusumawardani, Patria Novita Lilian Rizkie Maas, Azwar Maftukhah, Rizki Makruf Nurudin Makruf Nurudin Margi Asih Maimunah Miranti Dian Pertiwi Mulyono Nitisapto MULYONO, NITISAPTO Nugroho Susetya Putra Nugroho Susetya Putra Nur Indah Mansyur Pradysta Maya Hermania Prapto Yudono Prapto Yudono Prapto Yudono Putra, Nugroho Susetya Putri Wulandari Putu Oki Bimantara Putu Sudira Putu Sudira Putu Sudira R. Sapto Hendri Boedi Soesatyo Retno Kartikawati Riza Kurnia Sabri Rudi Hari Murti Samuel Munyaka Kimani Santika Sari Shiddieq, Dja’far SIGIT SUPADMO ARIF Sri Hartati Sri Nuryani Hidayah Utami Sri Nuryani Hidayah Utami Sri Nuryani Hidayah Utami Sri Nuryani Hidayah Utami Sri Nuryani Hidayah Utami Sri Nuryani Hidayah Utami Sri Nuryani Hidayah Utami Sri Nuryani Hidayah Utami Sri Nuryani Hidayah Utami, Sri Nuryani Hidayah Sri Redjeki Stephen Harper Suci Handayani Sukristiyonubowo, Sukristiyonubowo Supriyanto Notohadisuwarno Tangguh Prakoso Totok Gunawan Tri Mulya Hartati Valensi Kautsar Vira Kusuma Dewi Weiguo Cheng Weiguo Cheng, Weiguo Wijanarko, Andy Wiji Safitri Wijoyo, Rachmanto Bambang Wiratama, Ristiya Adi Yoga Yuniadi Yuli Lestari