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All Journal Agrotrop : Journal on Agriculture Science International Journal of Biosciences and Biotechnology Buletin Udayana Mengabdi E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Jurnal Lahan Suboptimal Journal of Degraded and Mining Lands Management Caraka Tani: Journal of Sustainable Agriculture Jurnal Agrotek Tropika Agro Bali: Agricultural Journal Jurnal Bali Membangun Bali Nandur
NI MADE TRIGUNASIH
Program Studi Agroekoteknologi, Fakultas Pertanian Universitas Udayana
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Medicine & Pharmacology Public Health Social Sciences Transportation Other

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Journal : Nandur

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Evaluasi Potensi Lahan untuk Pengembangan Beberapa Jenis Tanaman Hortikultura Berbasis SIG (Sistem Informasi Geografis) pada Subak di Kecamatan Denpasar Utara Kota Denpasar Provinsi Bali Josua Sintong Martin Hutauruk; Ni Made Trigunasih; I Nyoman Dibia
Nandur Vol 1 No 2 (2021)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

This study aims to determine the actual and potential land suitability, limiting factors, provide land use direction and create a land suitability map for horticultural crops in North Denpasar District. This study uses field survey methods, soil analysis at the Laboratory of Soil and Environmental Sciences, Faculty of Agriculture, Udayana University, and the matching method. Observation of sample points was carried out by purposive sampling in each subak. Sampling was carried out to a depth of 30 cm. The results showed that the actual land suitability class for horticultural crops (sweet potato, potato, chili, tomato and eggplant) was classified as S3 (marginally appropriate) to N (not suitable) with the limiting factors being temperature, rainfall, N-total, K2O, and erosion hazard. Improvement efforts can be made by giving organic matter, giving Urea and KCl fertilizer. Potential land suitability classes for horticultural crops are classified as S3 (marginal appropriate) to N (not suitable), with temperature and rainfall limiting factors. The types of plants recommended for Subak Dalem, Kedua, Lungatad, Pakel II, Petangan, Ubung, and Sembung are sweet potatoes, chilies, tomatoes, and eggplants. The types of plants recommended for subak Pakel I are chili, tomato, and eggplant.
Analisis Perubahan Penggunaan Lahan di Kota Denpasar dengan Metode NDVI (Normalize Difference Vegetation Index) Fadilah Triani Putri; Ni Made Trigunasih; Putu Perdana Kusuma Wiguna
Nandur Vol 2 No 2 (2022)
Publisher : Fakultas Pertanian, Universitas Udayana

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Denpasar City is the capital city of Bali Province with a recorded population of 739,000 people in 2010. In 2020, the population will increase to 962,900 people, with a population increase of 1.01% per year.increase in population will have an impact on increasing the Impervious Surface Area (ISA) or watertight artificial structures, for example the area of built-up land. This land use change affects the green land cover in the Denpasar City area, so it is necessary to analyze land use changes in 2010 and 2020 using the Normalize Difference Vegetation Index. In 2010, the land cover for very dense class was 1795.43 ha, with dense land cover 2672, 85 ha, moderately dense 3520.59 ha, not dense 3749.36 ha and no vegetation 784.79 ha. In 2020, the land cover for very dense class is 1708.26 ha, with dense land cover 2287.99 ha, moderately dese class is 3326.15 ha, not dense 4519.29 ha and no vegetation 682.08 ha. The results of the NDVI analysis showed the highest land cover increase, namely the not dense class is 769.93 ha with the dominant land cover being residential or built-up land. This land use change occurs due to the increasing population of Denpasar City.
Sistem Informasi Subak Berbasis Web GIS (Geography Information System) dalam Menunjang Pertanian Berkelanjutan di Kecamatan Kediri, Kabupaten Tabanan Ni Made Trigunasih; Anak Agung Istri Agung Pramesti; Nyoman Bintang Kartika Sari; Prananda Yogathama Pribadi
Nandur Vol 1 No 4 (2021)
Publisher : Fakultas Pertanian, Universitas Udayana

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Subak is defined as a customary law community that has socio-agrarian-religious characteristics. One of the subaks in the Bali area is the subak in Kediri District, Tabanan Regency. This Subak does not yet have the latest information data on sustainable food agriculture. Subak in Kediri District, Tabanan Regency is a subak of LP2B (Sustainable Food Agricultural Land). Subak rice fields, data, and information on subak resources have not been mapped spatially. The subak information system was built using geospatial data obtained through participatory mapping in the field and field surveys. Data from the field was digitized using google satellite imagery through the QGIS application so that the area of each subak was obtained as well as information in the form of a subak database. The results of this analysis will become a database by uploading the data to the internet with the help of the Google Maps Api program. The attributes that will be included in the system include: (1) land resources, consisting of subak identity and land suitability; (2) human resources, consisting of the name of the farmer group, the total number of farmers, the number of sharecroppers, the number of owner farmers, land ownership and names of field extension officers, farmer education; and (3) agricultural resources, consisting of data on plant types, cropping patterns, planting times, types of fertilizers, fertilizer doses, rice varieties, origin of rice seeds, pests and marketing.
Evaluasi Status Kesuburan Tanah Pada Penggunaan Lahan Sawah di Subak Kecamatan Denpasar Utara Berbasis Sistem Informasi Geografis (SIG) Risky Novelin Simatupang; Ni Made Trigunasih; I Dewa Made Arthagama
Nandur Vol 1 No 3 (2021)
Publisher : Fakultas Pertanian, Universitas Udayana

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This study aims to determine the status of soil fertility in subak land, North Denpasar District, to determine the limiting factors, and to provide direction on soil fertility management actions. This research was conducted by field survey method and soil test method carried out in the Laboratory of Soil and Environmental Sciences, Faculty of Agriculture, Udayana University. The chemical properties analyzed were Cation Exchange Capacity (CEC), Base Saturation (BS), P-total, K-total, and C-organic. The results showed that soil fertility in North Denpasar District there are two soil fertility statuses, namely high fertility status (T) in SLH I (Subak Sembung and Subak Pakel I), II (Subak Lungatad and Subak Kedua), and IV (Subak Petangan and Subak Subak Ubung) and medium fertility status (S) in SLH III (Subak Pakel II and Subak Dalem). The limiting factor is the low P-total value. Based on the results of the study, it can be suggested land management by adding fertilizers containing P in the form of single fertilizer or compound fertilizers.
Evaluasi Status Kesuburan Tanah pada Pertanian Lahan Kering Berbasis Sistem Informasi Geografis di Kecamatan Baturiti Jencristy Gilberd Sitanggang; Ni Made Trigunasih; A.A. Nyoman Supadma
Nandur Vol 2 No 2 (2022)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

Baturiti District is located in the highlands and is one of the largest producers of horticultural agricultural products in Bali Province. productivity of seasonal horticultural crops, namely tomato plants (31,617 tons/ha); chili plants (8,122 tons/ha); Chinese cabbage (61,889 tons/ha). Farmers carry out intensive land management to achieve high production with the addition of chemical fertilizers and pesticides which in the long term can damage the soil and reduce soil fertility. To maintain high production, it is necessary to evaluate soil fertility in dry land agriculture in Baturiti District. The purpose of this study was to determine the status of fertility, as well as to determine the limiting factors of soil fertility, and provide direction for soil management in Dry Land Agriculture, Baturiti District. The research method used is a survey and soil test method with parameters of fertility status including Cation Exchange Capacity (CEC), Base Saturation (BS), organic-C, total-P, and total-K with reference to the Technical Instructions for Evaluation of Soil Fertility Research Center Bogor land. The results showed that the soil fertility status at the study site was classified into three soil fertility statuses, namely, low with an area of 971.88 ha in HLU I (Parean Tengah Village), classified as medium with 1,023.08 ha found in HLU V (Luwus Village), HLU IX (Antapan Village), HLU VII (Candikuning Village), and a height with an area of 3,082.98 ha are located in HLU IV (Antapan Village), HLU II (Antapan Village), HLU III (Baturiti Village), HLU VIII (Bangli Village) ), HLU VI (Angseri Village). Parameters that are limiting factors for soil fertility status are CEC and C-organic so it is necessary to add organic matter such as organic fertilizer, manure, compost, return of plant remains and by applying intercropping cultivation and crop rotation on dry land agriculture. in Baturiti District.
Aplikasi Sistem Informasi Geografis untuk Pemetaan Kerapatan Vegetasi dan Penutup Lahan Hubungannya dengan Daerah Resapan Air di Kawasan Pariwisata Ubud, Gianyar, Bali Isabella Tiurmauli; Ni Made Trigunasih; Ida Bagus Putu Bhayunagiri
Nandur Vol 3 No 3 (2023)
Publisher : Fakultas Pertanian, Universitas Udayana

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In urban environments, the land cover composition plays a crucial role in determining the hydrological processes, particularly the infiltration rate. The Normalized Difference Vegetation Index (NDVI) is widely used to assess vegetation abundance and health. This discussion paper aims to investigate the relationship between land cover types and NDVI values in the context of infiltration in urban areas. Ubud District is one of the urban and tourism areas with a population and tourism that continues to increase resulting in the conversion of land functions into residential areas, highways, and industrial development. This research employed a descriptive qualitative method, with data analysis techniques utilizing digital classification and spectral index transformation on Sentinel 2A remote sensing data from the year 2022. The results of the study revealed that areas with forest and vegetation cover, characterized by high vegetation density (values ranging from 0.59 to 0.95), contribute to favorable infiltration conditions in urban and tourism areas.Vegetation cover, as indicated by higher NDVI values, positively influences infiltration rates by improving soil structure and water absorption. Incorporating green spaces and vegetation into urban planning strategies can help mitigate stormwater runoff issues and promote sustainable stormwater management practices. However, further research is needed to comprehensively understand the complexities associated with the relationship between land cover, NDVI, and infiltration under various urban contexts.
Analisis VCI Korelasinya Terhadap Kekeringan Lahan menggunakan Data Penginderaan Jauh Multi Temporal di Kecamatan Kubu, Kabupaten Karangasem, Provinsi Bali Bintang Bayu Mahapati; Ni Made Trigunasih; I Wayan Narka
Nandur Vol 3 No 3 (2023)
Publisher : Fakultas Pertanian, Universitas Udayana

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This research analyzes drought occurrence in Karangasem Regency, specifically in Kubu District, Bali Province. Kubu District experiences drought disasters almost every year due to low rainfall and high temperatures. Decreased water supply has a significant impact on agricultural production, particularly on corn crops. To understand drought and its impacts, the Vegetation Condition Index (VCI) analysis method is employed using Landsat 8 satellite imagery. The VCI analysis results reveal significant drought occurrences in 2015, contributing to a decline in agricultural production. Data validation methods are utilized to verify the relationship between VCI and agricultural production through statistical data and field surveys. The validation confirms the adverse effects of drought on agricultural production in Kubu District. This research provides a better understanding of drought in the region and emphasizes the importance of using satellite data and VCI for drought monitoring.
Evaluasi Kesesuaian Lahan Tanaman Pangan Pada Lahan Sawah Menggunakan Sistem Informasi Geografis di Kecamatan Sidemen, Kabupaten Karangasem, Bali Kezia Angelia Febyna Putri; Ni Made Trigunasih; I Made Mega
Nandur Vol 3 No 4 (2023)
Publisher : Fakultas Pertanian, Universitas Udayana

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This research aims to determine the suitability of actual and potential land for food crops, limiting factors and efforts to improve them as well as appropriate land use directions in Sidemen sub-district, Karangasem. The method used in this research is a survey method and matching the data the quality/characteristics of the land with the requirements for plant growth. The food crops evaluated included rice plants, corn and soybeans. The results of the land suitability evaluation show that the actual land suitability class for food crops (rice, corn, soybeans) are classified as S3 (marginally suitable) to N (not suitable) with limiting factors such as rainfall, P- available, slope, erosion hazard and texture. For land suitability classes, potential food crops (rice, corn, soybeans) are classified as S1 (very suitable) to N (not suitable) with the limiting factors being slope and texture. Efforts to improve that can be done in overcoming the limiting factors include irrigation, applying fertilizers, and making terraces.
Analisis Spasial Evaluasi Kesesuaian Lahan Tanaman Hortikultura pada Lahan Pertanian di Kecamatan Sidemen, Kabupaten Karangasem Irene Levina Yulianti Sinaga; I Made Mega; Ni Made Trigunasih
Nandur Vol 3 No 4 (2023)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

Horticultural crops, especially fruits and vegetables contain nutritional components, namely sources of vitamins and minerals needed to support human nutritional needs. To produce horticultural crops optimally, it is necessary to evaluate land suitability. This study aims to determine actual and potential land suitability classes as well as spatial distribution for horticultural crops, limiting factors, and land use directions that can be recommended on dry land in Sidemen District. This research was conducted using survey methods, soil analysis in the laboratory, and land suitability classification using the 2011 Ritung land evaluation technical guidelines by matching the quality/characteristics of the land with the growing requirements of the plants being evaluated. The horticultural crops evaluated included Chinese cabbage, red chilies and long beans. The results showed that the actual land suitability class for horticultural crops (petsai, red chili, and long beans) was classified as S3 (marginally appropriate) up to N (not suitable) with the limiting factors of temperature, rainfall, texture, P-available, and slope. Potential land suitability classes for horticultural crops (petsai, red chili and long beans) are classified as S1 (very suitable) to S3 (marginally suitable) with the limiting factors of temperature, texture and slope. Efforts to improve land suitability class can be done by cropping pattern setting, applying fertilizers, and making terraces.
Evaluasi Kesuburan Tanah pada Lahan Sawah Berbasis Sistem Informasi Geografis di Kecamatan Rendang Dwiki Sinatrya Putra; Ida Bagus Putu Bhayunagiri; Ni Made Trigunasih
Nandur Vol 4 No 1 (2024)
Publisher : Fakultas Pertanian, Universitas Udayana

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Indonesia is an agricultural country which rice is the main food source The productivity of rice plants in Rendang District continues to decline. Rice productivity from 2011 to 2014 decreased from 6.51 tons/ha down to 5.28 tons/ha according to BPS data for Rendang District in 2021. This study aims to determine soil fertility status, limiting factors, and soil management efforts to improve soil fertility. This research was carried out in Rendang District from July to September 2023. The methods used include survey methods and soil tests in the laboratory. The chemical properties of the soil tested include CEC, base saturation, P-total, K-total, C-organic. Assessment of soil fertility status based on the results of soil chemical properties analysis is matched with Soil Fertility Status Assessment Criteria according to PPT in 1995. The results showed that there were two classes of soil fertility status, namely low and medium. Low fertility status is found in homogeneous land units I (Rendang, Nongan, and Pesaban Villages) and homogeneous land units III (Menanga Village). Low fertility status is being found in homogeneous land units II (Menanga, Rendang, Nongan, Pesaban Villages). The parameters that become limiting factors are P-total and K-total. Based on the results of the study, it is recommended to fertilize SP-36, KCl, and the addition of organic fertilizers according to the constraints of soil fertility parameters and an analysis of the fertilizer needs should be carried out to determine the right dose according to the cultivated plants.
Co-Authors A.A.NYOMAN SUPADMA Abd. Rasyid Syamsuri Adelia Novita Marampa Agustina, I Komang Yudi AHMADI FAUZAN NUR RAHMAN AI Nyoman Sunarta Anak Agung Istri Agung Pramesti Apriadi, Putu Agung Artanaya, I Wayan Bintang Bayu Mahapati DEWA AYU CHYNTIA ANGELINA DEWA AYU PUTU SRI WAHYUNI DIBIA I N Dita Ayu Lorenza DJIAN NILAM SARI Dwiki Sinatrya Putra Fadilah Triani Putri Febriana, Anastasia GEDE WIJANA Girsang, Giyo Brem Dana Gusti Ngurah Alit Susanta Wirya I DEWA MADE ARTHAGAMA I DEWA MADE ARTHAGAMA I Gede Ketut Susrama I Ketut Suada I MADE ADNYANA I Made Mega I Made Mega I Made Mega I Nengah Netera Subadiyasa I Nyoman Dibia I NYOMAN MERIT I NYOMAN RAI I NYOMAN SUNARTA I NYOMAN WIJAYA I WAYAN NARKA I Wayan Narka I Wayan Narka I Wayan Narka I WAYAN NARKA I WAYAN SEDANA I.D.M. Arthagama I.N. Dibia I.N. Sunarta Ida Bagus Putu Bhayunagiri IMAS CAHYANINGTIYAS INDAYATI LANYA Irene Levina Yulianti Sinaga Isabella Tiurmauli Jencristy Gilberd Sitanggang Josua Sintong Martin Hutauruk KARTIKA DEWI OKTAFIANTI Kezia Angelia Febyna Putri M D DANA MADE SRI SUMARNIASIH MADE SRI SUMARNIASIH Moh Saifulloh MOH SAIFULLOH moh saifulloh, moh Nahak, Senon Apriyanto Nalle, Margiman S. NI KADEK ARY KRISNAYANTI Ni Luh Kartini Ni Made Ely Ariani NI NENGAH SONIARI NI NYOMAN ARI MAYADEWI NI PUTU UTARI HANDAYANI Nyoman Bintang Kartika Sari Pramudita, I Gede Made Prananda Yogathama Pribadi Putu Perdana Kusuma Wiguna Putu Perdana Kusuma Wiguna Putu Perdana Kusuma Wiguna RENI ANDRIANI NAIBAHO Risky Novelin Simatupang Sidabutar, Febrin SISKA MAILASARI SUMARNIASIH, MADE SRI T. Kusmawati TATIEK KUSMAWATI THRESIA ADHISYA SITORUS UTAMA, I WAYAN EKA KARYA VANDANI, YAYAN WIDHIANTHINI WIDHIANTHINI Wigunanda, I Wayan Surya Aditya Wiraatmaja, Wayan WIYANTI WIYANTI YUDHA, I KADEK WISMA