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I Gede Wahyu Pramartha
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Gedung Agrokomplek Lantai 2, Fakultas Pertanian, Universitas Udayana Jl. P.B. Sudirman, Denpasar, Bali (80232) Telp. (0361) 222450, Fax. (0361) 702801
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INDONESIA
Nandur
Published by Universitas Udayana
ISSN : -     EISSN : 27466957     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Nandur adalah Jurnal Ilmiah Pertanian yang mempublikasikan dan menyebarluaskan hasil penelitian/naskah hasil riset (original research) kepada para peneliti dan ilmuwan di bidang pertanian yang mencakup bidang ilmu Agroekoteknologi, Agribisnis, dan Arsitektur Pertamanan. Naskah yang diterbitkan ditulis dalam bahasa Indonesia dan melalui proses review pada Fakultas Pertanian, Universitas Udayana.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 11 Documents
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Search results for , issue "Vol 4 No 1 (2024)" : 11 Documents clear
Uji Efektifitas Pestisida Nabati Biji Mimba (Azadirachta indica A. Juss) terhadap Hama yang Menyerang Selada Merah (Lactuca sativa var. acephala) Raja Malem Kata Keliat; A.A. Ayu Agung Sri Sunari; Ni Nengah Darmiati
Nandur Vol 4 No 1 (2024)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

The purpose of this study is to determine the type (species) of pests that attack red lettuce plants (Lactuca sativa var. acephala), knowing the effect of neem seed vegetable pesticide application in controlling pests on red lettuce and knowing the concentration of neem seed vegetable pesticides that are most effective in controlling pests on red lettuce plants. The research was conducted from May to June 2023 on the land of Biaung Village, Pemanis Hamlet, Penebel District, Tabanan Regency which is located at 8°-24'33-5"- 8°- 40'91-36" south latitude and 115°-10'13-0"- 115°-17'02-84" east longitude. The study used the Group Randomized Design method, namely neem seed vegetable pesticides with 6 repeats and the concentration used was a stratified concentration including 0% (control), 5%. 10%, and 15%. Based on the results of observations, the types of pests that attack red lettuce plants, are Valanga nigricornis, Atractomorpha crenulate, Ariolimax columbianus. The results showed that the application of vegetable pesticides neem seed extract was not able to control pest attacks on red lettuce plants.
Identifikasi Perbedaan Morfologi Alga Merah Bali (Gracilaria sp.) antara Bulung Gongseng dan Bulung Sangu I Kadek Aryawan; I Gede Putu Wirawan; I Ketut Suada
Nandur Vol 4 No 1 (2024)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

Gracilaria sp. is a type of seaweed that grows in Indonesia, especially in the sea of Bali. There are two species of Gracilaria sp. known by the people of Bali, namely bulung gongseng and bulung sangu. The two species are morphologically similar. This research aims to identify the morphological differences between bulung gongseng and bulung sangu sangu taken from the sea of Tanjung Benoa. Observations were made on physical characteristics such as shape, length, thickness, surface texture, and thallus color of the bulung gongseng and bulung sangu which were then compared to each other, where observations on the surface of the thallus used a 24x magnification microscope. The results showed differences in morphology between the bulung gongseng and bulung sangu, including the thickness of the thallus of the bulung gongseng which was thicker, the lighter color of the bulung gongseng compared to the bulung sangu, and the nodule surface of the bulung gongseng compared to the smooth surface of the bulung sangu.
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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Abstract

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.
Pengaruh Fungisida terhadap Pertumbuhan Jamur Colletotrichum gloeosporioides Secara in vitro I Wayan Diksa Gargita
Nandur Vol 4 No 1 (2024)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

Anthracnose is an important disease of garlic (Allium ascalonicum) caused by the fungus Colletotrichum gloeosporioides. This study aims to test the inhibition of fungicides made from mancozeb, carbendazim, and tebuconazole. This test used 70% mancozeb, 10% carbendazim, and 50% tebuconazole which was conducted using the Poisoned Food Technique method. Testing the inhibition of each fungicide against the growth of the fungus C. gloeosporioides was carried out in a completely randomized design (CRD) with concentrations, namely: 0.000 ml/l (F0), 0.094 ml/l (F1), 0.188 ml/l (F2), 0.375 ml/l (F3), 0.75 ml/l (F4), and 1.5 ml/l (F5). The data obtained were analyzed using SPSS software version 28.0 with the ANOVA (Analysis of Variance) method. Followed by Duncan Multiple Range Test (DMRT) test at 5% level if there is a significant difference. The results showed that all active ingredients of fungicides were able to suppress fungal growth seen from the colony area and growth rate of fungal colonies. Fungicides made from mancozeb 70% can inhibit the growth of C. gloeosporioides fungi in vitro at concentration levels of 0.094 ml/l to 1.5 ml/l, made from carbendazim 10% can inhibit the growth of C. gloeosporioides fungi in vitro at concentration levels of 0.094 ml/l to 1.5 ml/l, and made from tebuconazole 50% can inhibit the growth of C. gloeosporioides fungi in vitro at concentration levels of 0.094 ml/l to 1.5 ml/l.
Pengaruh Perubahan Iklim terhadap Faktor Erosivitas Hujan di DAS Buleleng Ni Made Ely Ariani; Ni Made Trigunasih; I Wayan Narka
Nandur Vol 4 No 1 (2024)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

Perubahan iklim merupakan perubahan keadaan iklim yang dapat diidentifikasi dari perubahan sifat-sifat iklim yang menyebabkan fenomena ENSO yang terdiri atas El Niño dan La Niña. Perubahan iklim mempengaruhi erosi tanah melalui perubahan curah hujan dan kondisi hidrologi pada suatu DAS yang berdampak pada ekosistem dan kesejahteraan manusia. Salah satu faktor yang mempengaruhi erosi pada persamaan USLE adalah nilai erosivitas hujan yang berkaitan dengan curah hujan. Oleh karena itu, penelitian terkait pengaruh perubahan iklim terhadap faktor erosivitas hujan di DAS Buleleng perlu diteliti karena ini akan menjadi faktor langsung yang mempengaruhi erosi tanah. Penelitian ini bertujuan untuk mengetahui dampak perubahan iklim terhadap laju erosivitas hujan (R) secara spasial dan temporal untuk periode 2014-2022 di DAS Buleleng. Perubahan iklim dianalisis berdasarkan data curah hujan CHIRPS (Climate Hazards Group InfraRed Precipitation with Station Data) untuk mengetahui pola hujan selama periode penelitian. Nilai erosivitas dianalisis berdasarkan persamaan Bols. Hasil penelitian menunjukkan bahwa curah hujan di DAS Buleleng pada periode 2014-2022 mengalami peningkatan sebanyak 30% dengan adanya fenomena ENSO dan IOD. Nilai rata-rata erosivitas hujan di DAS Buleleng mengalami peningkatan akibat perubahan iklim secara temporal selama periode penelitian sebanyak 56%. Secara spasial, erosivitas hujan terkonsentrasi di wilayah hulu DAS Buleleng dengan curah hujan tahunan tinggi.
Identifikasi Jenis Bangunan di Daerah Bahaya Longsor di Desa Candikuning Adelia Novita Marampa; Ni Made Trigunasih; Putu Perdana Kusuma Wiguna
Nandur Vol 4 No 1 (2024)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

This research aims to identify building types in landslide hazard areas and to determine the distribution of buildings in landslide hazard areas in Candikuning Village. The method used is detailed survey per building by assessing buildings in landslide hazard area by direct field survey. Field results show that building types in the hazard area are divided into 3 classes, namely high hazard class, medium hazard class, and low hazard class with 7 building categories consisting of tourism buildings, residential buildings, agricultural buildings, worship facilities, government buildings, and educational facilities. There are 8 buildings in the high hazard class area, where there are 7 residential buildings and 1 trade and service building. There are 584 buildings in the medium hazard class area consisting of 87 tourism buildings, 432 residential buildings, 51 trade and service buildings, 6 agricultural buildings, 4 worship facilities, 3 government facilities and 11 educational facilities. The total number of low hazard class is 1624 buildings which are divided into 180 tourism buildings, 1137 residential buildings, 153 trade and service buildings, 25 agricultural buildings, 23 government buildings and 22 educational facilities buildings. Tourism and residential buildings are in the high hazard class. Raising public awareness is essential in terms of building site selection. This can be achieved through selecting building sites away from steep slopes and proper land use by not planting annuals on slopes.
Uji Efektivitas Ekstrak Umbi Tanaman Kembang Sungsang (Gloriosa Superba L.) Sebagai Nematisida Nabati terhadap Nematoda Puru Akar (Meloidogyne Spp.) pada Tanaman Tomat (Lycopersicum Esculentum Mill) Nindi G. Isura Sitepu; I Dewa Putu Singarsa; I Made Sudana
Nandur Vol 4 No 1 (2024)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

Root-knot nematodes (Meloidogyne spp.) are one of the nuisance organisms in crop cultivation, including tomato plants. This nematode resides in the root part of the plant. Nematode attacks result in decreased productivity, death and crop failure. One of the nematode control efforts that can be done is using botanical nematicides. Based on this, a botanical nematicide study was conducted for root-knot nematodes (Meloidogyne spp.) using extracts of breeches flower plant tubers (Gloriosa superba L.) with concentrations of 5%, 10% and 20%. This study used a completely randomized design (CRD) with 5 treatments, each treatment was repeated 6 times. Stages of research methods: (1) Preparation of tuber extract, (2) Preparation of Meloidogyne spp. solution, (3) Test the ability of extracts in pots / polybags. The purpose of this study was to determine the effectiveness of tuber extracts from breeches flower that can suppress the population of Meloidogyne spp. The results showed that the population of nematodes/300g of soil at 20% concentration had the best ability to suppress the population of root-knot nematodes by 15 tails (56.73%), 10% extract by 24.17 tails (30.28%), 5% extract by 32.50 tails (6.25%). In the calculation of nematode population/1 g of roots, 20% extract has the best ability to suppress the population of root puncture nematodes by 19.33 tails (71.43%), then 10% extract by 26.17 tails (61.32%), 5% extract by 31.83 tails (52.96%).
Perencanaan Ruang Terbuka Publik di Natas Lehong, Kabupaten Manggarai Timur sebagai Tempat Rekreasi Jostar Jovandri Noari Parera; I Made Sukewijaya
Nandur Vol 4 No 1 (2024)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

Natas Lehong is one of the public open spaces in East Manggarai Regency which has an area of 2,86 Ha. Natas Lehong is a public open space that has a main function as a ceremonial field. In addition to its main function, Natas Lehong has another supporting function as a recreational facility. However, the supporting function cannot run well due to the lack of facilities that support recreational activities such as jogging tracks, park benches, playground areas, food and beverage stalls, and other supporting facilities. This research aims to plan public open space in Natas Lehong, Borong City, East Manggarai Regency as a place for recreation. This research uses a survey method with descriptive analysis and uses a qualitative research approach. The basic concept of this research is "Natas beo". Natas beo in the culture of the Manggarai people means, a village courtyard that functions as a public space for the community, such as traditional ceremonial activities, cultural performance activities, sports activities, playing for children and families. The final result of this research is a public open space planning in Natas Lehong which is divided into three spaces, namely public zone, semi-public zone, service zone. This research discusses the planning of public open space as a recreation area, so further research is needed to further examine the design and application of Natas Lehong.
Pemetaan Status Kesuburan Tanah Sawah Menggunakan Sistem Informasi Geografis di Kecamatan Kerambitan Kabupaten Tabanan Abni Sukma Br Tarigan; I Made Adnyana; Ketut Dharma Susila
Nandur Vol 4 No 1 (2024)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

The productivity of rice fields in the Kerambitan Subdistrict in 2019 was 5.97 tons/ha, and in 2020, it experienced a decrease to 5.65 tons/ha (a decrease of 5.4%). This occurred due to the diminishing soil fertility to support rice production. The purpose of this research is to determine the soil fertility status, limiting factors of soil fertility, provide guidance on soil fertility management, and create a soil fertility map. The research was conducted from February to May 2023 using survey and soil testing methods, categorized based on the Criteria for Assessing Soil Chemical Properties with parameters including soil fertility status: CEC, base saturation, organic carbon, total phosphorus, and total potassium. The results show two soil fertility statuses in the Kerambitan Subdistrict, namely moderate in Homogeneous Land Unit (HLU) II and V, and high soil fertility in HLU I, HLU III, HLU IV, and HLU VI. The limiting factor for soil fertility status in rice fields is organic carbon, which is classified as low in HLU II and V. Recommendations for soil fertility management include residue return after harvest and the addition of organic fertilizers to improve the soil fertility status of rice fields.
Aktivitas Antijamur dari Bakteri Penghasil Senyawa Imidazole-3-Oxide terhadap Jamur Helminthosporium Maydis Trisna Agung Phabiola; Ida Bagus Gde Pranatayana; Khamdan Khalimi
Nandur Vol 4 No 1 (2024)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

The fungus Helminthosporium maydis is a pathogen that causes leaf blight in corn plants.The use of biological agents is one way to control leaf blight that is environmentally friendly. One of these biological agents is bacteria that produce the compound imidazole-3-oxide. This research aims to determine the ability of bacteria producing imidazole-3-oxide compounds to inhibit the growth of H. maydis fungal colonies. The results showed that bacteria producing the compound imidazole-3-oxide were able to inhibit the growth of the fungus H. maydis in vitro with an inhibition percentage ranging from 94.74% to 95.52%. Bacterial filtrate producing imidazole-3-oxide compounds at a concentration of 20% is able to inhibit the growth of the fungus H. maydis with a percentage of inhibitory power ranging from 91.35% to 94.41% whereas at a concentration of 50% it was able to inhibit the growth of the H. maydis fungus with an inhibitory percentage of 100%. The results of this research provide new information that bacteria producing the compound imidazole-3-oxide can be used to control leaf blight disease in corn plants.

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