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All Journal Agrotrop : Journal on Agriculture Science AGRITROP International Journal of Biosciences and Biotechnology Buletin Udayana Mengabdi E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Advances in Tropical Biodiversity and Environmental Sciences Nandur
I WAYAN NARKA
Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Veterinary

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Journal : E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)

 1 
Karakteristik Terasering Lahan Sawah dan Pengelolaannya di Subak Jatiluwih, Kecamatan Penebel, Kabupaten Tabanan DEVI LEORENSIA BOKINGS; I NYOMAN SUNARTA; I WAYAN NARKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.2, No.3, Juli 2013
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRACT The Characteristic of Wetland Terracing in the Hillside Area and Its Management at Subak Jatiluwih, Sub-district of Penebel, Regency of Tabanan Subak Jatiluwih has a characteristic of rice field terracing which sufficiently taken into account as a terrace model and rice field management in the hillside area. In order to get the terrace model along with rice field management in the hillside area required a research regarding the subak land terracing characteristic in the hillside area along with its management. The research carried out by the method of survey and soil samples taken were analyzed in the laboratory the soil, and data management of terrace land were obtained through interviews to farmers landowners of sample. The research aims to find out the terrace along with the form of its land management, which is in the form of cropping pattern and irrigation system existed at Subak Jatiluwih, Sub-district of Penebel, Regency of Tabanan. The result of research shows that the steeper the class of hillside’s slope is, the narrower its terrace’s width, the higher its terrace’s height, the wider its rice field’s width, the higher its rice field’s height, the lower its inner rice field’s height, and the greater its rice field’s slope angle to its vertical plane. The cropping pattern being used at Subak Jatiluwih is cropping pattern of paddy-paddy-paddy and cropping pattern of paddy-paddy. The irrigation system applied is continuous simultaneously flowing system or continuous flow which does not need too many personnel to operate it.   Keyword : Slope,  Bench Terrace, Cropping Pattern, Irrigation System
Pengaruh Sistem Pengolahan Tanah dan Penggunaan Mulsa Terhadap Populasi Mikroorganisme dan Unsur Hara Pada Daerah Rhizosfer Tanaman Kedelai (Glycine Max L.) IDA BAGUS PUTU WAHYU PERMANA; I WAYAN DANA ATMAJA; I WAYAN NARKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.1, Januari 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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The Effect of Tillage System and Mulch Use for The Population of Microorganisms and Nutrients in The Soybean (Glycine max L.) Rhizosphere AreaThis study aims to determine the effect of tillage systems and mulching to microorganisms population change and nutrients in the rhizosphere area of the soybean crop. This study began in January 2014 until April 2014. Soil sampling conducted in Sedap Malam Street South Denpasar, while the analysis was conducted in the Laboratory of Soil Science Udayana University, Phytopathology Laboratory and Analytical Laboratories Udayana University. The study design was Randomized Block Design where the first factor is the Soil Treatment System Conventional processing system and no-tillage, while the second factor is the use of rice straw mulch, plastic mulch, and without mulch. Each treatment was repeated 5 times.Cultivation systems and the use of mulch, affect the population of bacteria in the rhizosphere of soybean plants. TP namely (24.4 x 107 cfu g-1), followed by treatment with KT (23.4 x 107 cfu g-1), TJ (18.6 x 107 cfu g-1), KJ (15.9 x 107 cfu g-1) , TT (9.4 x 107 cfu g-1) and the lowest is the KP (9 x 107 cfu g-1) .The system tillage and the use of mulch, affect the population of fungus in the rhizosphere of soybean plants. Total bacteria highest TP (25.8 x 107 cfu g-1), KT (24.8 x 107 cfu g-1), TJ (19.2 x 107 cfu g-1), KJ (17.2 x 107 cfu g-1), TT (10.8 x 107 cfu g-1) and the lowest is the KP (10.4 x 107 cfu g-1) .The system tillage and mulching affect the content of macro nutrients in the rhizosphere of plants soy. Highest nutrient C TT (14.67) and the lowest KJ (5.19). The highest N elements TJ (0.27) KT lowest (0.12). The highest P nutrients (114.72) KP lows (75.76). K highest nutrient TT (2721.7) and the lowest KP (1085.04). The highest Ca nutrients in TJ (8930.78) and the lowest KJ (3034.85). The highest nutrient S TP (0.0495) and the lowest TJ (0.0257). And nutrient highest Mg TJ (1566.82) and KP (529.12) .The system tillage and mulching different effect on the nutrient content of N, P and K on soybean plant tissue that showed significantly different interactions between each each factor. The highest nutrient N in KP (1.88) and the lowest in the TT (1.35). The highest P nutrients in TJ (288.97) and the lowest in the TT (211.78). The highest nutrient in KP (5479.81) and the lowest in the TJ (3565.56).
Uji Efektivitas Jenis Dekomposer pada Proses Pengomposan Sampah Organik di Kota Denpasar TAUFIQ WARDANA; KETUT DHARMA SUSILA; I WAYAN NARKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.1, Januari 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Test the Effectiveness Some Kinds of Decomposers on the Organic Waste Composting Process in Denpasar City This study aims to determine the quality of compost and decomposition rate of compost mix raw materials by using several kinds of decomposers. This research was conducted from November 2020 to February 2021 at the Sari Sedana Garbage Depot, on Bung Tomo IV Street number 1 in Denpasar, and for the analysis of compost samples located at the Soil Laboratory Agricultural Faculty of Udayana University. The design used in this study was a randomized block design. The compost mix raw materials (CM) consisted of 40% organic waste, 40% cow dung, 10 % husk charcoal, 8 % sawdust, 2 % dolomite, and decomposers (according to each treatment) + molasses. There were six treatments of various decomposers with four replications consisting of P0 (control): 100% organic waste (15 kg), P1: CM + EM4 and molasses, P2: CM + Beka and molasses, P3: CM + BA-5 and molasses, P4: CM + Biofit and molasses, P5: CM + Biogenic and molasses. The observed compost quality parameters included: C-organic, N-total, C/N ratio, P-available, K-available, moisture content, and pH. Data were analyzed using analysis of variance (ANOVA), followed by the Duncan’s Multiple Range Test 5% difference test. The results of the research showed that the use of decomposers had a very significant effect on the quality of the compost produced and composting process rate. The rate of decomposition and the best compost quality according to SNI 19-7030-2004 were shown by the P1 treatment with the EM4 as a decomposer.
Analisis Status Kerusakan Tanah Berbasis Sistem Informasi Geografis (SIG) di Daerah Aliran Sungai Yeh Ho Kabupaten Tabanan ALDINO RYAN FAUZI; NI MADE TRIGUNASIH; I WAYAN NARKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.2, April 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Soil Damage Status Analysis Based on Geographical Information System (GIS) In Yeh Ho Watershed Tabanan Regency The study aims to identify land damage status at DAS Yeh Ho, map land damage status at DAS Yeh Ho, and provide improvements soil condition recommendations on DAS Yeh Ho. Research methods is a survey method, land unit map is made for field sampling purposes. Based on the results overlay slope map, land type map, rainfall map and usage map get 13 samples. Results of samples that have been collected in the analysis in the laboratory to determine the content value of content weight, solum thickness, surface kerocks, fraction composition, total porosity, electrical power, pH, and permeability. This research shows that there is a land use influence on soil damage status. The results of the research on the state of soil damage is good in SLH 1, 2, 5.7, 8, and 12 with N symbol, the data of damaged soil damage status is in SLH 6, 10 and 13. Mild damaged Status in SLH is caused by texture and permeability with symbol R. I – F, p. SLH 3, 4, 9, and 11 entered into mild damaged category, permeability with symbol R. I – P. Recommendation results of this research is the improvement of the permeability parameters by means of planting annual crops and the addition of organic materials.
Evaluasi Status Kerusakan Tanah Sawah Berbasis Sistem Informasi Geografis di Kecamatan Baturiti Kabupaten Tabanan, Provinsi Bali RENI ANDRIANI NAIBAHO; NI MADE TRIGUNASIH; I WAYAN NARKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.3, Juli 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Evaluation of the Damage Status of Rice Fields Based on Geographic Information Systems in Baturiti District, Tabanan Regency Soil damage is a change in the basic properties of the soil that exceeds the standard criteria for soil damage. This study aims to determine the potential damage to paddy fields, the status of damage to paddy fields, and to make a map of the potential and status of damage to paddy fields. The research was conducted using survey and scoring methods, homogeneous land unit maps were made to determine the sampling point. Based on the results of overlapping maps of slope, soil type, land use and rainfall data, 5 points of homogeneous land units were obtained. Field observations were made to determine the parameters of the thickness of the solum and surface rock, composite soil sampling for analysis of pH, texture, electrical conductivity, number of microbes and intact soil samples for analysis of permeability, bulk density, and porosity. The results of the research on potential soil damage were classified as mild at SLH 1 (Perean Tengah) and 5 (Apuan) and moderate at SLH 2 (Antapan), 3 (Luwus) and 4 (Batunya). The soil damage status was classified as light at SLH 3 (Luwus) with the limiting factor of porosity, SLH 1 (Perean Tengah) and 5 (Apuan) with the limiting factor of permeability. SLH 2 (Antapan) and 4 (Batunya) are not damaged.
Co-Authors AGUSTINA TANGKETASIK ALDINO RYAN FAUZI Boy Fernando Sagala DEVI LEORENSIA BOKINGS I DEWA MADE ARTHAGAMA I DEWA MADE ARTHAGAMA I Nyoman Dibia I NYOMAN MERIT I NYOMAN SUNARTA I Wayan Dana Atmaja I.N. Dibia I.N. Merit I.N. `Dibia IDA BAGUS PUTU BHAYUNAGIRI IDA BAGUS PUTU WAHYU PERMANA Jamhari Jamhari Ketut Dharma Susila Krisdianto Putra Sihombing Masana Frininta Sembiring NI MADE TRIGUNASIH NI MADE WIKARNITI Ni Nengah Soniari RENI ANDRIANI NAIBAHO T. Kusmawati TATIEK KUSMAWATI TAUFIQ WARDANA WIYANTI WIYANTI