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INDONESIA
Jurnal Agrotek Tropika
Published by Universitas Lampung
ISSN : 23374993     EISSN : 26203138     DOI : -
Core Subject : Agriculture,
Jurnal Agrotek Tropika (JAT) is a journal of science in the field of agrotechnology which covers several fields of science such as Agronomy, Horticulture, Soil Science, and Plant Pests and Diseases. Journal of Tropical Agrotek published since 2013 and published three times in one year ie in January, May, and September. Journal of Tropical Agrotek published by Department of Agrotechnology, Faculty of Agriculture, University of Lampung in cooperation with Agroteknologi Association of Indonesia (PAGI) Lampung.
Arjuna Subject : -
Articles 811 Documents
Respirasi Tanah Akibat Sistem Olah Tanah dan Aplikasi Mulsa In Situ pada Pertanaman Kacang Hijau (Vigna radiata L.) di Laboratorium Lapang Terpadu, Universitas Lampung Yuves Menti; Sri Yusnaini; Henrie Buchari; Ainin Niswati
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (635.245 KB) | DOI: 10.23960/jat.v8i2.3911

Abstract

Soil respiration is an indicator of the activity of microorganisms in the soil. The treatment of soil tillage system and the use of organic mulch given to the soil will affect the activity of soil microorganisms. The research aims to study the effect of soil tillage systems, application of in situ mulch, and the interaction between both in soil respiration. This research was conducted from April to July 2017 at the Integrated Field Laboratory, Faculty of Agriculture, University of Lampung, using a Randomized Block Design (RBD) factorially prepared with two treatment factors. The first factor is the soil tillage system (T), which consists of minimum tillage (T0) and conventional tillage (T1). The second factor is the treatment of mulch (M), which consists of no mulch (M0) and the application of in-situ mulch 5 t. ha-1 (M1). The data obtained were tested for various homogeneity by the Bartlett test and additivity by the Tukey test. Data were analyzed by analysis of variance and continued with LSD test at a 5% level. The relationship between soil temperature, soil moisture content, soil organic matter, and soil pH with soil respiration was tested by correlation test. The results showed that the soil tillage system and application of in-situ mulch had no significant effect on soil respiration, and there was no interaction between the soil tillage system and application of in-situ mulch in soil respiration on observations before tillage, 1 day after planting (HST), 41 HST, and 88 HST. There is no correlation between soil temperature, soil moisture content, soil organic matter, and soil pH with soil respiration on pre-tillage observations, 1 HST, 41 HST, and 88 HST.
PENGARUH LAMA PERENDAMAN PANGKAL SETEK DALAM LARUTAN NAA (NAPTHALENE ACETIC ACID) PADA PERTUMBUHAN SETEK LADA Syaicha Fachrun Nisa; Niar Nurmauli; Akari Edy; Sugiatno Sugiatno
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.563 KB) | DOI: 10.23960/jat.v8i2.3903

Abstract

Effect of soaking duration on base stem cuttings in NAA solution (Naphthalene Acetic Acid) on the growth of pepper The need for pepper is increasing along with the development of the food industry with the basic ingredients of pepper. The determining factor of the quality of pepper produced comes from the seeds used. This study aims to determine the effect of soaking DURATION on pepper cuttings (Piper nigrum L.) in the Napthaleneacetic Acid (NAA) solution. The study was conducted in October 2018 until February 2019 in the greenhouse and Plant Science Laboratory of the Faculty of Agriculture, University of Lampung, Bandar Lampung. This study uses a completely randomized group design (RKTS). The treatment of immersion base cuttings in NAA (N) solution concentrates 500 ppm consisting of : without NAA (n0), immersion 0 minutes (n1), soaked 15 minutes (n2), soaked 30 minutes (n3), soaked 60 minutes (n4), and soaked 120 minutes (n5). Homogeneity of variability between treatments was tested by Bartlet Test and data additivity was tested by Tukey test, then continued with Variance Analysis (ANARA). Comparison of the middle value with the orthogonal comparison test at α level of 5%. The results showed that: (1) giving NAA affected the number of roots in the book, the fresh weight of the roots in the book, the dry weight of the roots in the book, the total number of roots, and the total fresh weight of the roots; (2) administration of NAA by immersion is better than dipping in the number of roots in the book, the fresh weight of the roots in the book, the dry weight of the roots in the book, the total number of roots, and the total fresh weight of the roots; and (3) length of soaking cuttings in NAA solution has no effect on the growth of pepper cuttings.
PENGARUH SISTEM OLAH TANAH DAN PEMUPUKAN NITROGEN JANGKA PANJANG TERHADAP RESPIRASI TANAH DI LAHAN POLITEKNIK NEGERI LAMPUNG TAHUN TANAM KE-27 Erdiana Damayanti; Muhajir Utomo; Ainin Niswati; Henrie Buchari
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (645.994 KB) | DOI: 10.23960/jat.v8i2.3898

Abstract

Unsustainable cultivation techniques can cause carbon loss on farm.   The cultivation technique that is often used by farmers today is intensive tillage.  Intensive tillage can increase CO2. Steps to reduce CO2 gas emissions, while increasing carbon stored in the soil by implementing agricultural cultivation with conservation tillage system (Olah Tanah Konservasi). The conservation tillage system is able to reduce global warming through absorption of C in the soil, and reduce CO2 emissions. In addition, fertilization can also affect CO2 emissions. CO2 emissions in the soil come from soil respiration. The purpose of this study was to determine the effect of long-term tillage systems on soil respiration, determine the effect of long-term N fertilization on soil respiration, and determine the effect of interactions between tillage systems and long-term N fertilization on soil respiration. The study was arranged in a randomized block design (RBD) consisting of two factors, namely the tillage system and nitrogen fertilization factors. The first factor is the treatment of tillage system (T) namely T0 = no tillage, and T1 = intensive tillage, while the second factor is without nitrogen fertilizer (N0) and high nitrogen fertilizer (N1). The data obtained will be tested for homogeneity by Bartlett Test and additives tested by Tukey Test. Furthermore, the data were analyzed by analysis of variance and continued with a BNJ test of 5% level. Observation of soil respiration was done 4 times, namely -1, 1, 2, 3 days after tillage. The results showed that soil respiration one day before to three days after the soil was treated in intensive tillage (OTI) was the same as the no tillage system (TOT), soil respiration -1 days after tillage to 3 days after tillage on nitrogen fertilization (100 N kg ha-1 ) given in the previous planting season the same as without fertilization (0 kg N ha-1), and there is no interaction between the tillage system and nitrogen fertilization on soil respiration.
PERSISTENSI DAN PEMATAHAN DORMANSI BENIH CABAI RAWIT LOKAL MENGGUNAKAN TEKNIK BIO-INVIGORASI BENIH Jefi Saputra; Riska Audina Amir; Nur Mumin; Gusti Ayu Kade Sutariati
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v8i2.3194

Abstract

Persistence and Breaking of Local Chilli Seed Dormancy Using Seed Bio-Invigoration Techniques. This study aims to evaluate the persistence of local chilli seed dormancy while evaluating seed bio-invigoration techniques that effectively break the dormancy of local chilli. The study consisted of two series of experiments, namely: the persistence test of local chilli. seed dormancy (Series 1) was observed descriptively using a germination indicator for several weeks to reach a germination percentage ≥ 80%. Testing of seed dormancy breakage by seed bio-invigoration technique (Series 2) using a randomized complete design with 3 replications and 7 treatments namely: no treatment (A0), matriconditioning of husk charcoal powder (SAS) + Bacillus sp. CKD061 (A1), matriconditioning SAS + Pseudomonas sp. TBT214 (A2), red brick powder matriconditioning (SBM) + Bacillus sp. CKD061 (A3), matriconditioning SBM + Pseudomonas sp. TBT214 (A4), matriconditioning SAS + Bacillus sp. CKD061 + Pseudomonas sp. TBT214 (A5), and matriconditioning SBM + Bacillus sp. CKD061 + Pseudomonas sp. TBT214 (A6). The results showed that the persistence of local chilli seed dormant cultivars Konsel 1 and Konsel 2 cultivars were 6 weeks. While the dormancy break test on the Konsel 1 cultivar was 2 weeks at A1 treatment with breaking dormancy of 90.00%. While in Konsel 2 cultivar which is 4 weeks in the A6 treatment with breaking dormancy  86.67% which is significantly different from the control. This study shows that A1 treatment can break dormancy of chilli seeds in Konsel 1 cultivar and A6 treatment in Konsel 2 cultivar. 
POPULASI DAN TINGKAT SERANGAN HAMA KUTU PUTIH PADA UBI KAYU (Manihot esculenta Crantz) PADA BEBERAPA LOKASI PENANAMAN DI LAMPUNG Sidarlin Sidarlin; I Gede Swibawa; Agus Muhammad Hariri; FX Susilo
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (712.029 KB) | DOI: 10.23960/jat.v8i2.3912

Abstract

The research aimed at studying the level of attack and population of mealybug cassava in multiple cassava planting locations in Lampung Province takes place from September 2017 to January 2018. Sampling was carried out in several cassava planting locations in five villages in five sub-districts in South Lampung, Central Lampung, and East Lampung. Attack crop samples were ten plants that were systematically chosen, each at five sample points located on four diagonal lines and one at the midpoint of each field. One plant at each sample point was selected for observation of the mealybug population. The laboratory process is carried out at the Plant Pests Laboratory, Plant Protection Department, Faculty of Agriculture, University of Lampung. The results showed that mealybug  were found in all locations of observation with a low population density of 0.68-3.26 individuals. per 3 leaves. Location of cassava planting does not affect the population of mealybug  but this location affects crop damage which ranges from 47 - 59%. Damage to plants in South Lampung is lower than damage to plants in East Lampung and Tanjung Bintang.
PERTUMBUHAN DAN PATOGENISITAS BEBERAPA ISOLAT MUTAN Metarhizium anisopliae TERHADAP HAMA PENGHISAP POLONG (Riptortus linearis) Puji Astuti; Yuyun Fitriana; Lestari Wibowo; FX Susilo
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (600.349 KB) | DOI: 10.23960/jat.v8i2.3908

Abstract

Growth and pathogenicity of Metarhizium anisopliae mutant isolates on pod sucking bug (Riptortus linearis). This study aimed to determine the growth ability of Metarhizium anisopliae mutant (colony diameter, spore density, and viability) and the ability of M. anisopliae to cause mortality in pod sucking bug(Riptortus linearis). The study conducted at the Laboratory of Agricultural Biotechnology, Faculty of Agriculture, University of Lampung. The study began in December 2016 - April 2017. M. anisopliae used in this study were isolate B wildtype (MYFT B), mutant M. anisopliae 1 (MYFT 1), mutant M. anisopliae 42 (MYFT 42), and M. mutant anisopliae 51 (MYFT 51). The results of this study indicated that the Myft B isolate (wildtype) had the widest diameter (5.50 cm) with the highest spore density in the MYFT 42 mutant isolate (7.4000 x 108 spores / ml) and the highest viability in theMYFT 51 mutant isolate (96.750% ). MYFT 51 and MYFT 42 mutant isolates were able to cause 100 % mortality of R. linearis and significantly higher compared to the MYFT 1 mutant isolates and wildtype MYFT B.
PENGARUH SISTEM OLAH TANAH DAN PEMBERIAN MULSA ORGANIK TERHADAP ALIRAN PERMUKAAN DAN EROSI PADA PERTANAMAN KACANG HIJAU (Vigna radiata) MUSIM TANAM KE EMPAT DI LABORATORIUM LAPANG TERPADU FAKULTAS PERTANIAN UNIVERSITAS LAMPUNG Ahmad Shan Kemala Jaya; Irwan Sukri Banuwa; Hery Novpriansyah; Muhajir Utomo
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (576.614 KB) | DOI: 10.23960/jat.v8i2.3907

Abstract

Tillage can significantly affect soil susceptibility to erosion which can accelerate and increase the rate of erosion. The use of mulch can reduce erosion by reducing the impact energy of falling rain so it does not damage the structure and aggregate of the soil, reducing speed, volume and scouring of surface runoff. This study aims to determine the effect of (1) tillage systems on surface runoff and erosion in green bean plant  (2) applying organic mulch to the amount of surface runoff and erosion in green bean plant  (3) the interaction between the tillage system and the use of mulch on surface runoff and erosion in green bean plant . This research was conducted in March to June 2017 in the Integrated Field Laboratory of the Faculty of Agriculture, University of Lampung. The design used is factorial in the Complete Randomized Block Design (RCBD) on two treatment factors namely the tillage system and the mulch with four replications. The results showed that the tillage system did not significantly affect all observed variables. In the treatment of giving and without mulch also did not significantly affect all observed variables. The response of surface runoff and erosion in green bean plant  to the tillage system does not depend on the organic mulch shown on all variables.
APPLICATION OF BENZYLADENINE (BA) IN THE FORM OF LANOLIN PASTE ON FLOWER-STALK BUDS SUCCESSFULLY INDUCED RE-BLOOMING OF HYBRID Phalaenopsis Mukhaila Iryani; Yusnita Yusnita; Dwi Hapsoro; Kukuh Setiawan; Agus Karyanto
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (704.641 KB) | DOI: 10.23960/jat.v8i2.3915

Abstract

Hybrid moth orchid (genus Phalaenopsis) is one of the most popular ornamentals in Indonesia. It has beautiful and long-lasting flowers, but cultivating this orchid is still become a challenging issues due to the need of specific condition to grow and long time period to re-blooming. Plant growth regulators (PGR) (i.e. Benzyladenine (BA)) has been widely documented as a flower-inducing substance in several orchids. However, the optimal concentration and its mechanism in inducing flower-stalk bud and re-blooming is still unclear. This research aimed to study the effects of BA application in the form of lanolin paste on hybrid Phalaenopsis flower-stalk buds. We conducted this study using completely randomized design with four replications at the greenhouse laboratory Faculty of Agriculture University of Lampung on August to December 2018. We divided the orchid into 5 group of BA concentration (0, 1000, 1500, 3000, or 6000 ppm). The sheath of the fourth or fifth buds of the flowers were carefully opened, then it smeared with BA. The percentage of bud break into flower spike or keiki, length of shoots or spike and number of open flowers were recorded until 10 weeks of observation. The results showed that, neither of the buds under the control treatment (without BA), 1000 ppm nor 1500 ppm BA broke and grew into keiki or spike. On the other hand, application of BA at 3000 ppm or 6000 ppm successfully induced 100% flower spikes on the buds treated. No keiki was formed in all buds treated. In addition, treatment of the buds with 6000 ppm BA produced longer flower spikes as well as more open flowers. We conclude that the application of BA (minimal 3000 ppm) successfully induced flower spike of  hybrid Phalaenopsis.
PENGARUH LAMA SIMPAN PADA VIGOR BENIH DAN KECAMBAH SORGUM (Sorghum bicolor [L.] Moench) GENOTIPE KAWALI DAN P/F-10-90A Iska Hartina Anggraini; Muhammad Kamal; Eko Pramono; Kukuh Setiawan
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (599.102 KB) | DOI: 10.23960/jat.v8i2.3909

Abstract

Sorghum is a type of carbohydrate-producing serelia plant. Sorghum has a great potential to be developed in Indonesia.  Seed storing time is the time period of the seed storage before the seed is planted again, while the storage of the seed is carried out with the aim of maintaining seed viability in the save period for as long as possible and can be used for the next planting period.  The purpose of this study was to determine the effect of storage time on seed vigor and sprouts of Kawali and P/F-10-90A genotypes. This research was conducted at the Laboratory of Seed and Plant Breeding, Faculty of Agriculture, University of Lampung, Bandar Lampung which runs from February 2017 until February 2018. This study uses split plot design with 3 group replications. The main plot is the storage time (LS) that was consisted of 0, 4, 8 and 12 months storage time period. Subplot is genotype (G), which consists of Kawali (G1 ) and P / F-10-90A (G2). The results showed that seed vigor and sprouts decreased significantly at 4 and 8 months storage time with the percentage of dead seeds 16.7% and 40.7%, while the percentage of normal strong sprouts at 4 months amounted to 74% for genotype P/ F-10-90A  and 8 months 54% for genotype Kawali.  P/F-10 -90A genotypes have higher seed vigor and sprouts vigor compared to Kawali genotypes as indicated by dead seed variables, strong normal sprouts, normal sprout length canopy, long root primary roots, normal sprouts, dry weight normal sprouts, and normally strong sprouts. The effect of interaction  between storage time and genotype was shown by seed vigor of genotype P/F-10-90-A seedlings which were proven to be superior for 4, 8 and 12-month storage time period.  Excellence of genotype P/F-10-90-A make it can be stored and was allowed to be used as good seed on next season farming.
PENGARUH PUPUK HAYATI DAN BAHAN ORGANIK TERHADAP POPULASI DAN BIOMASSA CACING TANAH PADA PERTANAMAN BAWANG MERAH (Allium ascalonicum L) DI KECAMATAN MERBAU MARATAM KABUPATEN LAMPUNG SELATAN Annove Kurnia Arofi; Sri Yusnaini; Kus Hendarto; Mas Achmad Syamsul Arif
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (659.137 KB) | DOI: 10.23960/jat.v8i2.3897

Abstract

This study aimed to determine the effect of biofertilizer, organic matter and the interaction between biofertilizer and organic matter on population, biomass of earthworm and shallot production. This experiment was conducted in Merbau Mataram, South Lampung Regency on September – December 2017, designed by using Randomize Block Design (RBD) with two factors, i.e. : Biofertilizer application consists of biofertilizer and non biofertilizer and organic matter application consists of chicken manure, cow manure, oyster mushroom baglog and straw compost. Analysis of variance (anova) was carried out using a significance level of 0,05 after verifying the additivity (Tukey’s test) and homogeneity of variance (Bartlett’s test) of the data. When a significant effect was revealed in the anova, the mean separations among treatments were obtained by least significant difference (LSD 0.05).  The results showed that application of biofertilizer (Bio max grow) increased earthworm population in 37 days after planting at 10 – 20 cm depth and 70 days after planting at 0 – 10 and 10 – 20 cm depth, biofertilizer application also affected earthworm biomass and shallot production in 70 days after planting. Oyster mushroom application gave the best effect compared to the other organic matter on population and biomass of earthworm and shallot production.

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