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E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)
Published by Universitas Udayana
ISSN : 23016515     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
E-Jurnal Agroekoteknologi Tropika (JAT) adalah peer-reviewed, open access jurnal, diterbitkan oleh Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana. JAT menerbitkan hasil peneitian original dan review artikel dalam bidang Ilmu tanah dan lingkungan, Agronomi, hama dan penyakit tumbuhan, dan arsitektur lanskap. Penulis diharapkan mengimkan karya tulisnya yang belum pernah dipublikasikan, sedang di-review atau sedang dipertimbangkan untuk diterbitkan di jurnal atau media lain secara lengkap. Ruang lingkup JAT mencangkup, tetapi tidak terbatas pada bidang berikut: kimia dan kesuburan tanah, biologi tanah, fisika dan konservasi tanah, manajemen suberdaya lahan, pengendalian hama dan penyakit terpadu, hama tanaman, penyakit tanaman, biopestisida, bioteknologi tumbuhan, agronomi dan hortikultura, benih dan pemuliaan tanaman, ekofisiologi, dan arsitektur lanskap.
Arjuna Subject : -
Articles 8 Documents
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Search results for , issue "Vol.4, No.4, Oktober 2015" : 8 Documents clear
Identifikasi Mikoriza Vesikular Arbuskular (MVA) dari Rhizosfer Bawang Merah (Allium cepa L.) dan Talas (Colocasean esculenta (L.) Schott) serta Perbanyakannya Menggunakan Media Zeolit NI WAYAN ARMINI; I GEDE PUTU WIRAWAN; I NYOMAN WIJAYA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.4, Oktober 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Vesicular Arbuscular Mycorrhizae (VAM) Identification of Red Onion (Allium cepa L.) and Taro (Colocasean esculenta (L.)Schott) Rhizosphere and Its Spore Multiplication in Zeolite Media Efforts to increase agricultural production can be done with a variety of technologies. Technology is widely applied to farmers in the cultivation process is the use of inorganic fertilizers with high doses exceeding the dose of balanced fertilizer. In the production of onion crops in the field, also using inorganic fertilizer application on an ongoing basis which may result in damage to the ground both in terms of texture and structure. Red onions and taro roots are shallow causing both of these plants are unable to absorb nutrients to the maximum if exercised enough chemical fertilizer. This study was aimed to determine genus and species of VAM in red onion and taro rhizosphere, its colonization in root tissue, and to examine zeolite media compatibility with corn as a symbiont. Based on the results of the study, it was found three species of VAM spores of red red onion plant rhizosphere, namely: Acaulospora denticulata, A. laevis, Glomus ambisporum, and five species of VAM spores recovered from the rhizosphere of taro plants namely: Acaulospora foveata, A. koskei, A. capsicula, Scutellospora calospora and Glomus ambisporum. Infections were found in plants onion, taro and corn plants form symbiotic arbuscular, vesicles and inner spore. VAM from the rhizosphere of plants onion and taro can be reproduced using zeolite media and symbionts plant corn. Keywords: MVA, rhizosphere, Acaulospora, zeolite, inner spore
Evaluasi Status Kesuburan Tanah Pada Lahan Pertanian di Kecamatan Denpasar Selatan I DEWA AYU SRI PURNAMI PINATIH; TATI BUDI KUSMIYARTI; KETUT DHARMA SUSILA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.4, Oktober 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Evaluation of Soil Fertility Status At Agriculture Land in South Of Denpasar District This study aims to evaluate the status of soil fertility in South Denpasar District. The method used in the research is soil sampling survey with started making land unit acquired by overlaying several thematic maps, then conducted some soil sampling individuals for each land unit who then composited. Soil samples have been obtained and analyzed in the laboratory analysis of soil chemical properties include: 1). Cation Exchange Capacity (CEC), 2). Base saturation (BS), 3). Soil Organic Matter, 4). Total Soil Phosphorus, 5).Total Soil Potasium. The results analysis of soil fertility status chemical characteristic are then clasified of soil fertility status based on Bogor Soil Research Center Prosedures (1995). The results showed that in South Denpasar District there are two classes of soil fertility status of medium fertility class (S) which includes land unit DS1 (Subak Renon, Intaran, Sidakarya, Wangbiga), DS2 (Subak Suwung), DS3 (Sanur Kauh) while high soil fertility is also found on the land unit DS1 sample DS1d . Two parameters of soil fertility which is the limiting factor is the low chriteria of soil organic matter status and total soil phosporus. Alternative of management land to address both the limiting factors are the addition of organic matters and phosphorus fertilization. Keywords: soil fertility status, South  of Denpasar district, agriculture land
Evaluasi Status Kesuburan Tanah untuk Lahan Pertanian di Kecamatan Denpasar Timur DYAH AYU GEDE WIDYANTARI; KETUT DHARMA SUSILA; TATIEK KUSMAWATI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.4, Oktober 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Evaluation of Soil Fertility Status for Agricultural Land at East Denpasar District   Research on Evaluation of Soil Fertility Status for Agricultural Land in East Denpasar District was conducted in January-July 2014. The purpose of this study was to analyze some soil chemical properties that become obstacles soil fertility status, evaluate and map the soil fertility status of the study area. The method used in this study include, methods of survey and soil testing in the Soil and Environment Laboratory, Faculty of Agriculture, Udayana University. The study begins with  the manufacture of the land unit map by clicking the map overlay-type of soil; map slope; and land use maps. Retrieved five land units and each of land units were taken the composite soil samples and analyzed its chemical properties in the laboratory which includes CEC; KB; C-organic; total – P and K of soil. Further evaluation of soil fertility status corresponding technical instructions of Soil Research Center, Bogor (1995).           The results showed that the soil in the study had two soil fertility status, namely the status of medium and low soil fertility. The location study which has the status of soil fertility was covering land unit T1a; T1b; and T1c at Padang Galak Subak Kesiman Kertalangu (Kesiman Village, Kesiman Kertalangu Village, and Kesiman Petilan Village); T1d on Subak Yeh Lauh (Penatih Village), T3 land unit (Kesiman Kertalangu Village and Penatih Dangin Puri Village), and land units T4 on Subak Semaga (Penatih Village), While the research sites that have low fertility status covering, land unit T2 on Subak Delod Sema (Kesiman Village) and T5 land unit (Penatih Dangin Puri Village). Parameters of soil fertility is a constraint in dermining the fertility status of the soil, in the low content of  C-organic and total-P of soils. Management referral of soil fertility for the land unit T2 and T5 to suggest the addition of organic matter and fertilizer P to improve soil fertility status. Key Words : Soil fertility status; land units; agricultural land; East Denpasar District  
Identifikasi Mikoriza Vesikular Arbuskular (MVA) pada Rhizosfer Tanaman Ubi Jalar (Ipomoea batatas L.) dan Ubi Kayu (Manihot esculenta Crantz) serta Perbanyakannya dengan Media Zeolit PUTU SENA WIDIATMA; I GEDE PUTU WIRAWAN; I GEDE KETUT SUSRAMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.4, Oktober 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Vesicular Arbucular Mycorrhizae (VAM) Identification of Sweet Potato (Ipomoea batatas L.) and Cassava (Manihot esculenta Crantz) Rhizosphere and Its Spore Multiplication in Zeolite Media Vesicular arbuscular mycorrhizae is an obligate symbiont that live in a symbiotic mutualism with plant roots and grow inside root cortical cells helping absorption of nutrients which necessary for plant growth. This research aimed to determine VAM species in sweet potato and cassava rhizosphere and also to determine effectiveness of zeolite media as a multiplication medium. The research has been conducted from October 2014 through December 2014. Spore isolation was done by conducting wet sieving method. Roots colonization percentages were calculated with gridline section method and spores multiplication through trapping culture method. Results showed that there were four VAM genera consist of 16 species from rhizosphere of both sample plants. Those four genera identified as Acaulospora (2 species), Gigaspora (1 species), Glomus (1 species), and Scutellospora (1 species) from rhizosphere of sweet potato and 3 genera identified as Acaulospora (3 species), Gigaspora (3 species), and Glomus (5 species) from rhizosphere of cassava. Colonization is characterized by special structure of VAM such as arbucule and vesicule in plant roots tissue. Inner spores of VAM were discovered in all three kind of plants used in this research. Spore multiplication with trapping culture method using zeolite media and corn as a symbionts can be considered as an effective method for VAM spore multiplication indicated by density increase of VAM spores. Keywords : Colonization, Cortical Cell, Inner Spore, Symbiont, Trapping Culture
Identifikasi Mikoriza Vesikular Arbuskular (MVA) dari Rhizosfer Tanaman Cabai (Capsicum annuum L.) dan Tomat (Solanum lycopersicum L.) serta Perbanyakannya Menggunakan Media Zeolit I WAYAN EKA ADI WIRAWAN; I KETUT SUADA; I GEDE KETUT SUSRAMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.4, Oktober 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Vesicular Arbuscular Mycorrhizae (VAM) Identification of Chilli (Capsicum annuum L.) and Tomato (Solanum lycopersicum L.) Rhizosphere and Its Spore Multiplication in Zeolite Media Various attempts have been made to increase the production of chilli and tomato plants by farmers, including by using  inorganic fertilizer application on and on going basis. Considering potential problems that may occured due to inorganic fertilizer use, aplication of  biological fertilizer which one of them is containing vesicular arbuscular mycorrhizae (VAM) could be expected to assist the growth of chilli and tomato in more naturally manner. This study was aimed to determine genus and species of VAM in chilli and tomato rhizosphere, its colonization in root tissue, and to examine zeolite media compatibility with corn as a symbiont. Based on the results of the study, it was found four species namely Acaulospora fofeata, A. colombiana, A. Laevis, and Glomus ambisporum in chilli and four species in tomato that were identified as A. fofeata, A. colombiana, Scutellospora calospora, and G. ambisporum. Colonization were found in roots of chilli, tomato, and corn indicated by symbiotic structures arbuscules, vesicles, and inner spores. Zeolite media with corn as symbiotic plant is considered suitable for VAM spore propagation. Keywords: rhizosphere, Acaulospora fofeata, zeolite, inner spore
Pemanfaatan Tandan Kosong Kelapa Sawit dan Pupuk Nitrogen Sebagai Substitusi Top Soil terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis Guineensis Jacq.) PeriodePre Nursery YOSEPH SITIO; GEDE WIJANA; I GUSTI NGURAH RAKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.4, Oktober 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT The Utilization of Oil Palm Empty Bunches and Nitrogen Fertilizer as Substitution of Top Soil on Growth of Oil Palm Seedling (Elaeis guineensis Jacq.) in Pre Nursery Palm oil (Elaeis guineensis Jacq.) is the leading commodity in Indonesia, Indonesia can produce 23.900 ton or 40,27% of the total world production palm oil. To increase the production of palm oil so it’s necessary to the expansion of oil palm plantations. Media used for oil palm seedling is top soil, difficulty to get top soil it’s because it’s used continuously or eroded due to erosion so the availability of top soil is limited. Therefore, needed alternative to substitusion of top soil as a media of oil palm seedling. The purpose of this research was to know potential of compost oil palm empty bunches (TTKS) and nitrogen fertilizer as substitution of top soil on growth of oil palm seedling in pre nursery. This research used randomized complete block design with 2 factors. The first factors is media with top soil + sub soil + sand (3:1:1), TKKS compost + sub soil + sand 3:1:1, 1:3:1, 2:2:1, 2:1:2, 1:2:2 and the second factors is doses nitrogen fertilizer (urea 46%) with 0 g urea/pot, 2 g urea/pot and 4 gurea/pot.The research result showed that media TKKS compost + sub soil + sand 2:2:1 and 3:1:1 can substitution top soil because it has a value that is greater than or equal to the observed variable with controls. The application of nitrogen 4 gurea/seed showed the maximal growth of oil palm seedling in pre nursery.  The interaction of the both treatment just significant to plant height 4 and 12 weeks after planting, leaf area 4 weeks, steam diameter and leaf  number 8 weeks,  fresh weight of  crown 12 weeks. Composition of TKKS compost + sub soil + sand 3:1:1 + 4 g urea/pot is the best composition as a substitution of top soil because the value of  parameters plant height, leaf number, total chorophyll, fresh weight of crown, fresh weight total and dry weight total are greater than or equal to top soil. Keyword : TKKS compost and Nitrogen, substitution top soil, pre nursery
Kajian Status Kesuburan Tanah Sawah Untuk Menentukan Anjuran Pemupukan Berimbang Spesifik Lokasi Tanaman Padi Di Kecamatan Manggis I WAYAN SUARJANA; A.A. NYOMAN SUPADMA; I DEWA MADE ARTHAGAMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.4, Oktober 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Study Status of Fertility paddy Soil to Determine Instigation Balanced Fertilization Specific Location Rice Plants in Manggis District This research to determine of soil fertility status in Manggis district and make instigation balanced fertilization specific location on the rice plants accordance with of soil fertility status. This research was conducted survey and test method of soil analyzed in the laboratory of  Soil Science and Environment Faculty of Agriculture, Udayana University with soil chemical properties determination CEC, Cation Saturated, N-total, P2O5, K2O, C-organic, pH and EC. Results the evaluation of soil fertility status in Manggis district, Karangasem regency consists of soil fertility status high contained on land units I, II, III, VI, and soil fertility status being medium found on land unit IV, V, and VII. Instigation of urea without organic matter much as 250 kg ha-1, with 5 tons of straw ha-1 addition of urea many as 230 kg ha-1 and 2 tons ha-1 cage fertilizer addition of urea fertilizer 225 kg ha-1. P fertilization on medium soil status much as 75 SP-36 kg ha-1, and P fertility status high 50 kg SP-36 ha-1. K fertilizer application of 50 kg ha-1. Instigation using fertilizer organic rice straw compost the equivalent of 5 tons ha-1 and 2 ton ha-1 cage fertilizer. Keywords : Soil Fertility Status and Instigation Balanced Fertilization Specific    Location.
Kisaran Inang Bean Common Mosaic Virus (Bcmv) Penyebab Penyakit Mosaik Pada Tanaman Kacang Panjang (Vigna sinensis L.) A. A. GEDE PUTRA ADHITYA; I GEDE RAI MAYA TEMAJA; NI NENGAH DARMIATI; I DEWA NYOMAN NYANA; GEDE SUASTIKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.4, Oktober 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Host range of Bean Common Mosaic Virus (BCMV) causal agent of mosaic diseases on long yard bean  (Vigna sinensis L.) This objective of the study is order to find out the host range of BCMV and symptom variation. DAS-ELISA (Double Antibody Sandwich-Enzyme Link Immunosorbent Assay) menthod was used in this study. The study consisted of (1) Host range evaluation by mechanical inoculation, (2). Symptom observation on tested plants, (3) Serological test with DAS–ELISA. The result indicated that BCMV can infected Leguminoceae plants (peanuts, long yard beans, and beans); Solanaceae plant (tomatoes); Cucurbetaceae plant (cucumbers); Amaranthaceae plant (spinach); and Balsaminaceae plant (henna flowers). DAS-ELISA analysis shown that those plants were infected by BCMV. The symptoms variation were mosaic, vein banding,  wrinkled, and curved on commercial long yard beans (aura and panah merah varieties); wrinkled on commercial long yard beans (KPK and pusaka hijau varieties), cucumber and spinach; wrinkled and rolled on beans; wrinkled and curved upside on henna flowers.   Key word : bean common mosaic virus ,  long yard beans, DAS-ELISA

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