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Sudarningsih
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Jurnal Natural Scientiae
Published by Universitas Lambung Mangkurat
ISSN : -     EISSN : 28099796     DOI : DOI: https://doi.org/10.20527/jns.v2i1
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Immunology & microbiology Materials Science & Nanotechnology Physics
Jurnal Natural Scientiae (JNS), ISSN:2809-9796 (online) adalah sebuah jurnal blind peer review yang didedikasikan untuk publikasi hasil penelitian yang berkualitas dalam bidang IPA namun tak terbatas secara implisit. Semua publikasi di jurnal Natural Scientiae bersifat akses terbuka yang memungkinkan artikel tersedia secara bebas online tanpa berlangganan apapun. Jurnal Natural Scientiae dikelola secara profesional dan diterbitkan oleh FMIPA ULM dalam membantu mahasiswa, akademisi, peneliti dan praktisi untuk menyebarkan hasil penelitiannya. Jurnal Natural Scientiae merupakan media publikasi yang sangat peduli terhadap perkembangan dan inovasi-inovasi pada bidang IPA terutama bidang biologi, kimia dan fisika Indonesia. Focus and Scope: Biosistematika tumbuhan Biosistematikan Hewan Genetika Molekuler Mikrobiologi Ekologi Fisika Instrumentasi Fisika Material Geofisika Kimia Analitik Kimia Organik Kimia Anorganik Biokimia Kimia Fisik Kimia Lingkungan Kimia Komputasi Biomaterial
Arjuna Subject : Umum - Umum
Articles 5 Documents
 1 
Search results for , issue "Vol 3, No 2 (2023): November 2023" : 5 Documents clear
Profil Petani Pembudidaya Talas (Araceae ) di Desa Karang Intan Kabupaten Banjar, Kalimantan Selatan Herlin Mardiana; Anang Kadarsah; Erma Agusliani
Jurnal Natural Scientiae Vol 3, No 2 (2023): November 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jns.v3i2.10861

Abstract

This study aims to analyze the density and distribution of the taro plant and to obtain information about the knowledge of the local population on the cultivation technique of taro (Colocasia esculenta L. Shoot) in Karang Intan Village, Banjar Regency, South Kalimantan. Taro cultivators was carried out by interview method with 10% of respondents. The interview were made a comparison percentage and discussed descriptively. The results showed that the taro cultivators are dominated by women (56.25%) and the rest 43.75% are men. Respondents majority were from the age group 41-50 years (43.75%) and the lowest (12.5%) was from the age group 21-30 and 31-40 years. Farmers are the most occupied livelihood (75%) and the rest are fish farmers (25%). Taro cultivators in Karang Intan Village still apply simple cultivation techniques and local wisdom that are hereditary. Key words: Taro, farmer, knowledge
Identifikasi Karakteristik Mineral Magnetik Berdasarkan Analisis XRF di Lahan Pertanian Sekitar Sungai Biyonga Kabupaten Gorontalo Gani, Sintia N.; Yunginger, Raghel; Tamuntuan, Gerald H; Demulawa, Meilan
Jurnal Natural Scientiae Vol 3, No 2 (2023): November 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jns.v3i2.9857

Abstract

An analysis of soil chemical elements using X-Ray Fluorescence (XRF) has been conducted on paddy fields in Dutulanaa Village, Gorontalo Regency, and corn farms in Polohungo Village, Gorontalo Regency. Soil samples were taken at three locations, namely corn location 1 (location I), corn location 2 (location II), and paddy fields (location III). At each location, samples were taken at 2 points to obtain 6 pieces. The distance between sampling points is 10 m. Based on the results of XRF measurements, the elements that dominate in paddy fields and corn include silica (Si), iron (Fe), aluminum (Al), calcium (Ca), titanium (Ti), potassium (K), and manganese (Mn), where Si is a diamagnetic element, Fe is a ferromagnetic element, and Al, Ca, Ti, and K are paramagnetic elements. The most significant percentage is silica (Si), 60.27% in corn soil 2 points J2T2. The next highest element is iron (Fe), 29.47% in corn soil, 1 point J1T2. The next element is aluminum (Al), 9.10% in corn soil at 1 point J1T1, calcium (Ca) in corn soil at 2 points J2T2 is 10.03 %, titanium (Ti) was 2.31% in paddy fields at ST5 point and potassium (K) was 2.31% in a paddy field at ST5 point, and the lowest value was manganese (Mn) of 0.59% in corn soil 2 points J2T1. Even some heavy metal elements, such as lead (Pb), were found—zinc (Zn) and manganese (Mn). The highest heavy metal elements were found in agricultural corn land at 2 J2T2 points, namely lead (Pb) at 158 ppm, zinc (Zn) at 4,555 ppm, and manganese (Mn) at 17,100 ppm, where these results have exceeded the threshold of soil quality standards, resulting in environmental pollution of agricultural land.
Identifikasi Jenis Mineral Magnetik Berdasarkan Uji XRF pada Sedimen Permukaan Sungai Bone di Daerah Pertambangan di DesaTulabolo Timur, Suwawa, Kabupaten Gorontalo Nono’o, Sandra; Yunginger, Raghel; Tamuntuan, Gerald H; Demulawa, Meilan; Supu, Idawati
Jurnal Natural Scientiae Vol 3, No 2 (2023): November 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jns.v3i2.9924

Abstract

This study aims to determine the Types of Magnetic Minerals in Bone River Sediments in the Mining Area of Tulabolo Village. The XRF test was used to identify Magnetic Mineral elements in Bone River Sediments, and electrical conductivity (EC), pH, and temperature parameters for in situ measurements of Bone River water samples and measures of mineral types was carried out on prepared sediment samples. The results showed that direct measurements on water samples showed that the values of EC, pH, and temperature were (1,620-1,900) µS/cm, (5-7), and (25.0-25.9)oC, respectively. While the results of measurements using XRF elements that have the most significant percentage are elements (Si), especially at the S10 point of 58.84% diamagnetic minerals, elements (Fe), especially at the S7 point of 22.80%, element (Al) at the S10 point of 8, 11%, elements (Ti) at point S1 1.84% which are ferromagnetic minerals. Elements (Ca) at end S2 of (2.67%), elements (K) at point S1 of 1.50% paramagnetic minerals.
Kelimpahan Jenis Tanaman Pangan Pada Pekarangan Rumah Penduduk Di Desa Mandikapau Barat, Kecamatan Karang Intan, Kabupaten Banjar Pujah Naciah; Anang Kadarsah; Krisdianto Krisdianto
Jurnal Natural Scientiae Vol 3, No 2 (2023): November 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jns.v3i2.10904

Abstract

The yard plays an important role in meeting the needs of the community, namely by planting in the yard of the house, especially to meet the needs of the household, especially in meeting the needs of the family's home food, can be planted with food crops such as fruit, vegetables, tubers, spices, etc. The aim of the research was to study the types of food plants found and to know the abundance index and dominance index of food plants found in Mandikapau Barat Village. The method of this research is to determine the area of the yard, take samples of the yard, identify the types of food plant categories (fruits, vegetables, tubers, and spices), and calculate the abundance index and dominance index of these food plants. Results Food plants found totaled 25 families 32 genera 40 species (27 fruits; 5 vegetables; 2 tubers; 6 spices). The highest relative abundance index of the three locations was in the category of spices, bulbs, fruits, vegetables with a value of (28%; 6%; 5%; 4%) with galangal, cassava, papaya and cayenne pepper plants. The average dominance index shows a value of 0.131 which is included in the low category.KEYWORDS: Mandikapau; Kabupaten Banjar; food plant; dominance index
Pembuatan dan Karakterisasi Arang Aktif dari Kayu Alaban (Vitex Pinnata L.) Menggunakan Asam Asetat Marisa Shellyanti; Noer Komari
Jurnal Natural Scientiae Vol 3, No 2 (2023): November 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jns.v3i2.9892

Abstract

Kayu alaban merupakan pohon yang dapat tumbuh di berbagai jenis tanah. Jenis arang kayu alaban memiliki karakteristik yang unggul dibandingkan dengan jenis arang lainnya. Arang kayu alaban memiliki kandungan karbon yang tinggi, yaitu sekitar 90%, sehingga arang kayu alaban menjadi salah satu bahan bakar yang sangat efisien dan ramah lingkungan. Arang kayu alaban cukup tersedia di pasar dan warung serta toko kelontong dan biasanya dipakai untuk kegiatan di dapur. Salah satu kelemahan arang tersebut adalah belum diaktivasi. Penelitian ini untuk mengetahui kualitas arang aktif dari kayu alaban dengan asam asetat sebagai aktivator. Hasil penelitian menunjukkan bahwa arang tanpa aktivasi dan sesudah aktivasi memenuhi aturan yang mengacu SNI 06-3730-95 untuk kadar air (3,955% dan 3,345%) dan kadar abu (1,865% dan 2,895%). Arang setelah aktivasi memiliki daya serap iodium sebesar 761,58 mg/g telah memenuhi syarat SNI 06-3730-95.

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