Undergraduate Theses
Undergraduate Theses
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Analisis Mikro Struktur, Elemen, dan Gugus Fungsional Biochar Kotoran Sapi Hasil Teknik Retort dan Kiln
(Universitas Sumatera Utara, 2024)Biochar is the result of pyrolysis of biomass waste, in this case cow dung waste. Biochar characteristics are influenced by the pyrolysis technique used. Biochar characteristics can be analysed by Scanning Electron ... -
Pengaruh Sifat Fisika dan Kimia Tanah di Sentra Salak Angkola Barat dan Marancar terhadap Kualitas Buah Salak (Salacca Edulis)
(Universitas Sumatera Utara, 2024)Salak is one of the tropical fruit plants native to Indonesia. South Tapanuli Regency is one of the salak producing areas in North Sumatra, among its sub districts are West Angkola and Marancar Sub-districts which are the ... -
Pengaruh Pemberian Bahan Organik dan Asap Cair Hasil Pirolisis Terhadap Pertumbuhan dan Serapan Hara N, P dan K Tanaman Kedelai (Glycine Max L.) di Tanah Ultisol
(Universitas Sumatera Utara, 2024)This research aims to determine the effect of providing organic materials and liquid smoke from empty oil palm fruit bunches and interaction of organic materials and liquid smoke from empty oil palm fruit bunches in ... -
Skrining Mikroba Penghasil Acc Deaminase dari Tanah Salin Kecamatan Pantai Labu
(Universitas Sumatera Utara, 2024)The presence of NaCl in saline soils can have a significant impact on the microbial community in the soil. The main mechanism used by PGPR bacteria to reduce plant stress due to salinity stress is to reduce ethylene levels. ... -
Eksplorasi Bakteri Pelarut Kalium yang Berasal dari Beberapa Jenis Tanah
(Universitas Sumatera Utara, 2024)The amount of other cations that interact directly with potassium, such as Al3+ and Mn2+, influences the availability of potassium in Inceptisol. In Entisol, potassium availability is also influenced by the presence of ... -
Pengaruh Konsentrasi Giberelin dan Lama Perendaman terhadap Pematahan Dormansi dan Pertumbuhan Bulbil Porang (Amorphophallus Muelleri Blume)
(Universitas Sumatera Utara, 2024)The porang plant (Amorphophallus muelleri Blume) has become popular for cultivation because market demand is increasing and still needs to be developed. Plant growth regulators are needed to break the dormancy period of ... -
Seleksi Karakter Agronomi Kedelai (Glycine Max [L.] Merril)) pada Keturunan F3 Melalui Pemuliaan Organik
(Universitas Sumatera Utara, 2024)The aim of this research is to obtain selected individual selection based on pod production and flowering age in F3 progeny soybean plants results of crossing Anjasmoro with Grobogan. This research was carried out on land ... -
Respon Pertumbuhan Awal Porang (Amorphophallus Muelleri Blume) terhadap Pemberian Kompos Limbah Teh dan Fitosan di Tanah Ultisol
(Universitas Sumatera Utara, 2024)Porang is a tuber crop that has good commercial potential, but has not been widely recognized by the public. Looking at its distribution, ultisol soil has good potential for agricultural activities. So an alternative is ... -
Evaluasi Karakter Morfologis dan Agronomis Berbagai Genotip Ubikayu (Manihot Esculenta Crantz.) Asal Sumatera Barat di Sumatera Utara
(Universitas Sumatera Utara, 2024)This study aims to determine the morphological and agronomic characters of several varieties of cassava from West Sumatra. This research was conducted in the open field of ngumban surbakti road, Medan with an altitude of ... -
Serangan Ulat Grayak Spodoptera Frugiperda (Lepidoptera:Noctuidae) pada Tanaman Jagung (Zea Mays) di 4 Lokasi Kecamatan Tigabinanga Kabupaten Karo
(Universitas Sumatera Utara, 2024)Maize (Zea mays) is the second most important food commodity after rice, because maize can be produced for various purposes such as medicine, food and animal feed. The armyworm Spodoptera frugiperda J.E. Smith is an invasive ... -
Pengaruh Dosis Pupuk Kandang Sapi dan Sp-36 terhadap Pertumbuhan dan Produksi Kedelai (Glycine Max L.)
(Universitas Sumatera Utara, 2024)Soybean is an important crop in meeting food needs in order to improve community nutrition, because it is a relatively cheap source of vegetable protein compared to other protein sources such as meat, milk, and fish. Soybean ... -
Pengaruh Pemberian Pupuk Kotoran Sapi dan Berat Rimpang terhadap Pertumbuhan dan Produksi Jahe Merah
(Universitas Sumatera Utara, 2024)Ginger is a biopharmaceutical plant that is widely cultivated by the public because it has many benefits and also has a high selling price. One of the problems in cultivating red ginger is the ineffective use of inorganic ... -
Hubungan Kandungan Unsur Hara Makro (N, P, K dan S) Tanah terhadap Produksi Tanaman Kopi Arabika pada Beberapa Kecamatan di Kabupaten Tapanuli Utara
(Universitas Sumatera Utara, 2024)The production of Arabica coffee is relatively low, so it is necessary to evaluate fertilizer doses to meet the macro nutrient needs of Arabica coffee plants in Siatas Barita, Sipahutar, Parmonangan, Pagaran and Tarutung ... -
Analisis Mikro Struktur dan Gugus Fungsional pada Biochar dan Kompos Kotoran Sapi
(Universitas Sumatera Utara, 2024)Cow dung waste is a material produced by cow digestion. In this case, livestock waste has the potential to be processed into compost and biochar. This difference in manufacturing methods will affect the resulting ... -
Uji Efektifitas 3 Isolat Cendawan Entomopatogen Beauveria spp. terhadap Instar Larva Metisa Plana yang Berbeda di PT. Nusa Pusaka Kencana Kebun Bahilang Asian Agri
(Universitas Sumatera Utara, 2024)The bagworm Metisa plana is an important pest that is often found in oil palm plantations and until now its control is still using synthetic insecticides. The use of chemicals needs to be reduced with biological agents in ... -
Pengaruh Konsentrasi dan Frekuensi Pemberian Pupuk Organik Cair Daun Gamal (Gliricidia Sepium) terhadap Pertumbuhan dan Produksi Sawi Hijau (Brassica Juncea L.)
(Universitas Sumatera Utara, 2024)Green mustard is a vegetable that is rich in vitamins A, B, C, E, and K, and contains carbohydrates, protein and good fats that are useful for body health. The right fertilizer concentration can increase nutrient absorption ... -
Penetapan Dosis Optimum Pupuk Kalium terhadap Produksi Tanaman Bawang Merah (Allium Ascalonicum L.) di Kecamatan Palipi Kabupaten Samosir
(Universitas Sumatera Utara, 2024)Shallots require the nutrient potassium (K) for plant growth and production. Currently in Samosir Regency there are various varieties of shallots cultivated, including the Samosir variety as a local variety and the Batu ... -
Kajian Kualitas Tanah Inceptisol pada Perkebunan Kelapa Sawit (Elaeis Guineensis Jacq.) Rakyat di Kecamatan Bilah Hulu Kabupaten Labuhanbatu
(Universitas Sumatera Utara, 2024)The decline in people’s oil palm production in Bilah Hulu District is influenced by various factors, one of which is soil quality, currently there is no research on the study of the Inceptisol soil quality on people’s oil ... -
Respon Pertumbuhan dan Produksi Tanaman Jagung (Zea Mays L.) pada Berbagai Dosis Biochar Tongkol Jagung dan Pupuk Organik Cair Jakaba
(Universitas Sumatera Utara, 2024)Continuous use of inorganic fertilizers can have bad effects on the soil. By adding biochar and jakaba, the organic content can be increased, the physical, chemical and biological properties of the soil can be improved so ... -
Uji Cepat Varietas Padi (Oryza Sativa L.) Toleran Merkuri sebagai Sumber Genetik Perakitan Padi Toleran Merkuri di Kabupaten Madina
(Universitas Sumatera Utara, 2024)The high level of mercury in wastewater comes from unlicensed gold mining activities in Mandailing Natal Regency, which causes rice plants planted in paddy fields to be contaminated through irrigation using groundwater ...
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