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Penggunaan Citra Satelit Dalam Menentukan Indeks Hijau Kampus 1 UKSW Salatiga Dengan Pemanfaatan Metode Normalized Difference Vegetation Index (NDVI) Purnama, Dwi Juli; Simanjuntak, Bistok Hasiholan
BEST Journal (Biology Education, Sains and Technology) Vol 7, No 1 (2024): Juni 2024
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v7i1.9948

Abstract

Berkembangnya pembangunan pada kawasan Kampus 1 UKSW menyebabkan berkurangnya lahan vegetasi, sehingga akan berdampak pada tidak tercapainya pemenuhan ekosistem hijau kampus. Diperlukan penelitian awal untuk melihat bagaimana kondisi ekosistem hijau. Tujuan penelitian ini menghitung luasan RTH, menentukan sebaran indeks hijau Kampus 1 UKSW dengan menggunakan sistem informasi geografis, Normalized Difference Vegetation Index (NDVI). RTH yang didapatkan memiliki luas 2,86 hektar dengan persentase 34% dari total luas lahan 8,29 hektar. Sedangkan sebaran indeks hijau terdapat 4 kelas vegetasi yaitu non vegetasi, kemudian 3 kelas lainnya memiliki persentase luas dari sebaran indeks hijau non vegetasi – sangat rendah dengan persentase 12%, sangat rendah – rendah dengan persentase 19%, dan rendah – sedang dengan persentase 3%. Setiap kelas tersebut memiliki berbagai macam jenis vegetasi kecuali kelas non vegetasi hanya ada bangunan. Kelas non vegetasi – sangat rendah didominasi bangunan namun ada beberapa jenis vegetasi, kelas sangat rendah – rendah memiliki vegetasi yang beragam dan tidak didominasi oleh wilayah terbangun, kelas rendah – sedang vegetasinya didominasi oleh pohon besar dengan wilayah terbangun yang sedikit. RTH yang tersedia serta bangunan disekitarnya akan berdampak pada pola sebaran indeks hijau yang ada pada RTH Kampus 1 UKSW
Hilirisasi hingga Komersialisasi Teh Bit Celup: Suatu Proses Pemberdayaan Masyarakat Desa Sumberejo, Magelang Handoko, Yoga Aji; Jatiningrum, Setia Humani; Putri, Christina Ari Pramono; Manao, Nancy Felicia; Jayanti, Malta Puspita; Putra, Imanuel Trisya; Simanjuntak, Bistok Hasiholan
Jurnal Dimas Vol 7 No 1 (2025): Jurnal Pengabdian Kepada Masyarakat
Publisher : SEKOLAH TINGGI ILMU FARMASI YAYASAN PHARMASI SEMARANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53359/dimas.v7i1.103

Abstract

Beta vulgaris L. atau umbi bit merah adalah komoditas hortikultura unggulan Desa Sumberejo, Kecamatan Ngablak, Kabupaten Magelang. Umbi ini mempunyai manfaat kesehatan yang baik, karena mengandung antioksidan betasianin yang tinggi. Namun demikian, petani seringkali mengalami kerugian karena harga penjualan umbi bit segar yang cenderung di bawah dari harga pokok produksi. Tujuan dari pengabdian masyarakat yaitu meningkatkan kesejahteraan masyarakat Desa Sumberejo melalui proses pendampingan hilirisasi hingga komersialisasi produk teh celup bit. Pendampingan hilirisasi dilakukan mulai penciptaan inovasi produk olahan teh bit celup dengan memperoleh hak paten invensi, Sertifikat P-IRT, serta Sertifikat Halal, pelatihan Good Handling Practices dan Good Manufacturing Practices dalam produksi teh bit celup; penyusunan proposal kelayakan usaha; serta pendirian infrastruktur, pengadaaan alat produksi, dan pembuatan proptype produk teh bit celup. Proses pemberdayaan ekonomi melalui aspek komersialisasi teh bit celup dengan merek “Bieten Thee” juga telah dilakukan mulai: standarisasi kualitas produks, pemasaran, hingga distribusi. Hasil kegiatan hilirisasi teh bit celup ini menjadi model dan terebosan pertama masyarakat Desa Sumberejo dalam menaikkan nilai tambah hasil pertanian. Kata kunci: Beta vulgaris L., hilirisasi, komersialisasi, pemasaran, teh bit celup Beta vulgaris L. or red beetroot is a superior horticultural commodity of Sumberejo Village, Ngablak District, Magelang Regency. This tuber has good health benefits because it contains high levels of betacyanin antioxidants. However, the farmers often experience losses because the selling price of fresh beetroot tends to be below the cost of production. The aim of community service is to improve the welfare of the people of Sumberejo Village through the process of assisting the downstream process to the commercialization of beetroot tea bag products. Downstream assistance is carried out starting from the creation of innovations in processed beetroot tea bag products by obtaining invention patents, P-IRT Certificates, and Halal Certificates, training in Good Handling Practices and Good Manufacturing Practices in the production of beetroot tea bags; preparation of business feasibility study; as well as the establishment of infrastructure, procurement of production equipment, and the manufacture of beetroot tea bag prototypes. The process of economic empowerment through the commercialization of beetroot tea bags with the brand "Bieten Thee" has also been carried out starting from: standardization of product quality, marketing, until distribution. The results of the downstreaming of beetroot tea bags have become a model and the first breakthrough for the people of Sumberejo Village in increasing the added value of agricultural products. Keywords: Beta vulgaris L., beetroot tea bags, commercialization, downstream, marketing
PESTS INTENSITY IN POTATO (Solanum tuberosum) AND FABA BEAN (Vicia faba) INTERCROPPING IN SALARAN, GETASAN DISTRICT, SEMARANG REGENCY Setiawan, Andree Wijaya; Simanjuntak, Bistok Hasiholan; Andhika, Gideon Febby Prima
Agric Vol. 36 No. 1 (2024)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2024.v36.i1.p113-130

Abstract

Tropical regions face threats from pests, leading to significant losses in the global potato supply. Intercropping potatoes with faba beans is being explored to control pest infestations in tropical areas. This study aims to provide insights into pest dynamics and improve pestmanagement strategies for sustainable potato cultivation. The research evaluates five cropping systems, each replicated across seven beds: potato monoculture, alternating growth of potatoes and faba beans at a 2:1 ratio, planting faba beans between the rows of potatoes at a 1:1 ratio, growing faba beans between two beds of potatoes, and cultivating solely faba beans. The study looked at various factors such as the type and intensity of pest attacks on potatoes. It found that planting faba beans alongside potatoes can help reduce aphid (Homoptera: Aphididae) and mirid bug (Hemipetra: Miridae) attacks, but may not affect grasshopper (Orthoptera: Acrididaeand Pyrgomorphidae) attacks. The distance between potato beds and the population of faba bean plants can also influence pest interactions. Understanding these dynamics offers important information for sustainable pest management practices in intercropping systems.
PENGGUNAAN INDOLE-3-BUTYRIC ACID (IBA) UNTUK MENINGKATKAN PERTUMBUHAN STEK BATANG KOPI ROBUSTA Simanjuntak, Bistok Hasiholan; P, Ratna Dewi
Agrin Vol 24, No 2 (2020): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2020.24.2.505

Abstract

Perbanyakan kopi robusta (Coffea canephora) dengan metode stek sering terkendala pada pertumbuhan akar dan tunas daun. Pemberian Indole-3-Butyric Acid (IBA) diharapkan dapat mengatasi masalah pertumbuhan akar dan tunas pada stek batang. Tujuan penelitian ini adalah untuk menemukan konsentrasi IBA yang tepat terhadap pertumbuhan akar dan tunas daun stek kopi robusta. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) nonfaktorial dengan perlakuan konsentrasi IBA terdiri atas 0 ppm, 50 ppm, 100 ppm, 150 ppm, 200 ppm, 250 ppm, dan 300 ppm, dan diulang 4 kali. Parameter pengamatan meliputi panjang akar, jumlah daun, bobot basah dan kering berangkasan stek batang. Hasil penelitian menunjukkan bahwa pemberian IBA 150 ppm pada stek batang kopi robusta mampu menghasilkan panjang akar terbaik. Namun demikian, seluruh konsentrasi IBA yang diujikan belum mampu meningkatkan jumlah daun, berat berangkasan basah, dan berat berangkasan kering stek batang kopi robusta.Kata kunci: Indole Butyric Acid, kopi robusta, stek batang, 
Hubungan Praktik Budidaya di Berbagai Perkebunan di Sub-Daerah Aliran Sungai Tuntang Provinsi Jawa Tengah terhadap Karbon Organik Tanah Susetyo, Yefta Audy; Sigar, Abner Darmawan; Simanjuntak, Bistok Hasiholan; Setiawan, Andree Wijaya; Banjarnahor, Dina
AGRIUM: Jurnal Ilmu Pertanian Vol 28, No 2 (2025)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v28i2.24179

Abstract

Penurunan kandungan karbon organik dalam tanah sering kali menjadi dampak dari penerapan praktik budidaya yang kurang ramah lingkungan di agroekosistem salah satunya adalah lahan perkebunan. Penelitian ini bertujuan untuk mengidentifikasi praktik budidaya yang diterapkan di berbagai perkebunan di Sub DAS Tuntang, mengetahui kandungan karbon organik tanah, serta menganalisis hubungan antara praktik budidaya dengan kandungan karbon organik tanah. Penelitian dilakukan melalui survei lapangan di 41 titik sampel menggunakan metode stratified random sampling, disertai observasi agroekosistem dan wawancara petani. Analisis hubungan antara praktik budidaya dengan kandungan SOC dilakukan menggunakan Fisher's Exact Test. Hasil menunjukkan bahwa sebagian besar praktik budidaya seperti pemupukan, pola tanam, pengolahan tanah, penutup tanah, dan pengendalian hama tidak memiliki hubungan signifikan dengan kandungan karbon organik tanah. Namun, pengelolaan sisa tanaman dengan membiarkannya terurai secara alami terbukti memiliki hubungan signifikan dalam meningkatkan kandungan karbon organik tanah. Temuan ini menunjukkan bahwa retensi residu tanaman merupakan strategi yang efektif untuk memperbaiki kualitas tanah sekaligus mendukung upaya mitigasi perubahan iklim di lahan perkebunan.
Hubungan Nilai Biodiversitas dan Serapan Karbon Vegetasi pada Agroekosistem Sawah Irigasi dan Kebun di Sub DAS Tuntang Hulu, Kabupaten Semarang, Jawa Tengah, Indonesia: Correlation Between Biodiversity and Carbon Sequestration in Vegetation Across Irrigated Rice and Plantation Agroecosystems in the Upper Tuntang Sub-Watershed at Semarang Regency, Central Java Anugraheni, Eliza; Sutrisno, Alfred Jansen; Savitri, Galuh Windi; Nugrahanto, Bernardinus Arga; Simanjuntak, Bistok Hasiholan
JURNAL AGROTEKNOLOGI Vol. 19 No. 1 (2025)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v19i1.53686

Abstract

Irrigated rice fields with flooded cultivation systems tend to produce more carbon than they sequester, as the vegetation is dominated solely by rice plants. In contrast, plantation agroecosystems, which contain a more diverse range of plant species, have greater potential for carbon sequestration due to their higher biomass. This study aimed to analyze the relationship between plant biodiversity and vegetation carbon sequestration in irrigated rice fields and plantation areas within the Upper Tuntang Sub-watershed, at Semarang Regency, Central Java. The research involved 48 sample plots, consisting of 8 irrigated rice field sites and 40 plantation sites, selected based on carbon potential using NDVI data. Research stages included establishing sampling plots, plant species identification, and measuring both biodiversity and vegetation carbon sequestration. Results showed that the biodiversity index in irrigated rice fields fell into the low category, as rice was the only dominant species. In contrast, the plantation exhibited medium biodiversity indices due to the presence of more varied plant species. Carbon sequestration was highest (7,68) at point 5 and lowest (0,01) at point 7 in irrigated rice fields, while in plantation it was highest (230,00) at point 37 and lowest (0,01) at point 39. To assess the relationship between biodiversity and carbon sequestration, the plots were classified into three vegetation structure types: (1) understory plants, (2) understory plants and trees, and (3) understory plants, trees, and shrubs. A significant relationship between biodiversity and carbon sequestration was observed in plots containing both understory plants and trees with sig. value (2-tailed) of 0,047. However, no significant relationship was found in plots dominated solely by understory vegetation with sig. value (2-tailed) of 0,897, nor in plots containing understory, trees, and shrubs with sig. value (2-tailed) of 0,255. The research can serve as a basis for sustainable agroecosystem management, as it shows that increasing plant biodiversity can contribute significantly to increased vegetation carbon sequestration in the Upper Tuntang Sub-Watershed. Keywords: biodiversity, carbon sequenstration, plantation, rice field
Evaluasi Potensi Lahan Pengembangan Komoditas Strategis Perkebunan Kabupaten Sumba Tengah Provinsi Nusa Tenggara Timur Jawang, Uska Peku; Simanjuntak, Bistok Hasiholan; Prihtanti, Tinjung Mary
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 8 No 3 (2018): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.8.3.396-405

Abstract

Terdapat empat komoditi strategis perkebunan yang dikembangkan di wilayah Kabupaten Sumba Tengah yaitu kopi, kakao, jambu mete dan kemiri. Informasi potensi lahan pengembangan komoditi strategis masih terbatas. Tujuan penelitian: 1) Menentukan keunggulan komoditi terpilih, 2) Kesesuaian lahan, dan 3) Arahan wilayah pengembangan. Metode penelitian: Studi literature, Komoditas unggulan dengan metode LQ, Kelas kesesuaian lahan secara spasial dengan metode matching krakteristik lahan dan persyaratan tumbuh tanaman, dan arahan wilayah potensi pengembangan. Komoditas terpilih dengan wilayah basis. Kakao di Kecamatan: Katiku Tana, Katiku Tana Selatan, dan Mamboro. Kopi di Kecamatan: Katiku Tana dan Katiku Tana Selatan. Jambu Mete di Kecamatan Mamboro dan Umbu Ratu Nggay. Kemiri di Kecamatan : Mamboro dan Umbu Ratu Nggay Barat. Tingkat luas wilayah kelas kesesuaian lahan komoditas, Kakao dengan luas kelas S1: 103.327,5 ha, S2: 83.365,4 ha dan N: 225 ha. Kopi dengan luas kelas S1 123.664 ha, S2: 63.027,7 ha dan N: 226. Jambu mete dengan luas kelas S1: 5.716 ha, S2: 126.661,3 ha, S3: 54.313,1 ha dan N: 228 ha. Kemiri dengan luas kesesuian kelas S1: 165.567 ha, S2: 21.128,3 ha dan N: 223 ha. Arah wilayah pengembangan komoditas berdasarkan potensi lahan. Kakao di Kecamatan Katiku Tana, Katiku Tana Selatan dan Mamboro. Kopi di kecamatan Katiku Tana dan Katiku Tana Selatan. Jambu Mete wilayah pengembangan cukup potensi di kecamatan Mamboro, Umbu Ratu Nggay dan Umbu Ratu Nggay Barat. Kemiri wilayah pengembangan di kecamatan Katiku Tana Selatan, Mamboro dan Umbu Ratu Nggay Barat. Kata Kunci: Evaluasi Potensi Lahan, Komoditas Unggulan Perkebunan, Kelas Kesesuaian, Arahan Pengembangan Wilayah.
Increasing the Knowledge of Women Farmer Through Household Counseling on Food Safety in Sumberejo Village, Magelang Regency Herawati, Maria Marina; Handoko, Yoga Aji; Sutrisno, Alfred Jansen; Maria, Maria; Simamora, Liska; Yuliawati, Yuliawati; Nuswantara, Bayu; Simanjuntak, Bistok Hasiholan
Unram Journal of Community Service Vol. 5 No. 2 (2024): June
Publisher : Pascasarjana Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ujcs.v5i2.655

Abstract

Food safety is the condition and effort needed to prevent food from three possible contaminations, namely: biological, chemical and other contamination that can disturb, harm and endanger human health. Sumberejo Village is a Partner of Faculty of Agriculture and Business, Universitas Kristen Satya Wacana. Sumberejo Village has potential resources in the form of vegetables. It is supported by climate and temperature conditions that are suitable for vegetable production. One of the superior commodities produced in Sumberejo Village is beetroot fruit. Processing agricultural products into processed food products is an effort to increase economic value when prices fall or during harvest time. Processing beet tubers into processed products such as cookies, beetroot tea bags, cakes are one way to reduce losses due to falling prices and increase the selling value of beet tubers. Knowledge and safe food processing practices are very necessary in food processing activities. Through food safety education activities, it is hoped that the women farming community in Sumberejo village will be able to process beet tubers in accordance with the concept of food safety. The aim of this Community Service activity is to provide knowledge and understanding of female farmers in Sumberejo Village regarding food safety and efforts to prevent contamination during food processing and producing food that is safe for consumption by the community. Based on the results of implementing safety education activities in Sumberejo Village, it can be concluded that there has been an increase in knowledge about food safety. It can be seen in the results of the questionnaire that knowledge about food safety is important because it concerns health
The Effect of Various Concentrations of Both Lime Juice and Synthetic Citric Acid Solutions to Protect Capsicum frutescens L. against Yellow Leaf Curl Disease Wagiman, Rejo; Agus, Yohanes Hendro; Simanjuntak, Bistok Hasiholan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 12 No. 3 (2023): September 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i3.676-683

Abstract

The yellow leaf curl (YLC) disease is one of plant disease generally found in chili pepper. The aim of the research was to know various concentrations of lime juice and synthetic citric acids to protect chili pepper (Capsicum frutescens L.) against YLC disease. The research used a randomized completely block design using seven treatments and three replications. The treatments tested were spraying lime juice of 0.1%, 0.2%, and 0.3% volume per volume (v/v); citric acid solution of 0.1%, 0.2%, and 0.3 % weight per volume (w/v). Control was used water only. The data result were analyzed using the honestly significant different test at the 95% confidence level. The treatment of both lime juice and citric acid solutions 0.2% and 0.3% could decreased whitefly population on chili pepper compared with control. The lime juice and citric acid solutions 0.3% was able to reduce the incidence and intensity of YLC disease. Lime juice and citric acid solution of 0.2% and 0.3% increased fruit numbers and fruit weights compared with control. The lower whitefly population decreased disease incidence of YLC (with regression Y = 5.7505x – 48.029). Intensity of YLC disease decreased fruit numbers and fruit weight (correlation value of -0.949 and -0.912). Keywords:  Citric acid, Chili pepper, Gemini virus diseases, Whitefly.
Land Suitability Analysis for Peanut (Arachis hypogea) Farming in World Heritage Conservation Area Sangiran Gintu, Agung Rimayanto; Simanjuntak, Bistok H; Suprihati, Suprihati
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1738-1747

Abstract

Sangiran Archaeological Site was conservation area protected by national and inter-national regulations. Sangiran Site, however, was an open site inhabited by people commonly working as farmer cultivating food crops and horticulture. During dry season, most farmers generally cultivate peanut. This study aims to determine the suitability of land in the Sangiran area for peanut cultivation. The study was conducted by analyzing soil samples taken from several locations at the Sangiran site: Blue Clay and Black Clay from the Pucangan formation in Pablengan Village, and Kabuh soil from around the Sangiran Triangulation Monument. The results from 3 sampling areas showed that the score of Black Clay area 2.13 mean "unhealthy soil" for peanut farming. The Blue Clay area showed the score about 1.87 also mean that "unhealthy soil" for peanut farming. Kabuh formation area showed the score about 2.97 mean that "marginal health" for peanut farming. Overall the score of Sangiran areas mean that the soil belongs to "very bad" quality for peanut cultivation.