• Optimasi Waktu Pemberian Beberapa Sumber P terhadap Serapan Fosfor Tanaman Jagung (Zea mays L.) di Tanah Ultisol 

  Lestari, Luthfiah (Universitas Sumatera Utara, 2025)

  Phosphorus is an essential nutrient for plants, but its availability is limited in Ultisols due to phosphorus fixation by aluminum and iron. The efficiency of P fertilizer decreases due to an increase in incubation time, ...

• The Effect of Pineapple Pulp Addition During Fermentation on the Flavor Profile of Berastagi Arabica Coffee Powder 

  Tarigan, Cindy Katalina Br (2025)

  Pineapple is a tropical fruit rich in vitamin C, sugar, organic acids, and bromelin enzymes that play a role in breaking down proteins and supporting the coffee fermentation process. The quality of coffee taste is greatly ...

• Pengaruh Pemberian Kolkisin Terhadap Bobot Biji dan Pertumbuhan pada Tanaman Kedelai [Glycine Max (L.) Merrill] Varietas Gepak Kuning 

  Tarigan, Kelvin (Universitas Sumatera Utara, 2025)

  This study aims to determine the effect of colchicine application on seed weight and growth in the soybean variety Gepak Kuning. The research was conducted at Jalan Pasar 1 No. 296, Tanjung Sari Village, Medan Selayang ...

• Pengaruh Berbagai Jarak Tanam dan Pemberian Pupuk Kandang Ayam terhadap Pertumbuhan dan Produksi Tanaman Kubis (Brasicca oleraceae L.) 

  Saragih, Greifeny Octavia (Universitas Sumatera Utara, 2025)

  Cabbage (Brassica oleracea L.) is a vegetable rich in vitamins such as vitamin A 200 IU, B 20 IU, and C 120 IU, which play a very important role in health. This research aims to determine the effect of various planting ...

• Identifikasi dan Persentase Serangan Kutu Putih (Hemiptera: Monophlebidae dan Pseudococcidae) di Main Nursery Kelapa Sawit 

  Purba, Maya Stefany Arieska (Universitas Sumatera Utara, 2025)

  Oil palm (Elaeis guineensis Jacq.) is one of the most important plantation commodities in Indonesia, and its productivity is strongly influenced by the use of high-quality and healthy seedlings during the nursery stage. ...

• Pertumbuhan dan Produksi Dua Varietas Padi (Oryza sativa L.) terhadap Pemupukan N Organik dan Anorganik 

  Abdullah Praja, Muhammad (Universitas Sumatera Utara, 2025)

  Pandan Wangi rice variety is a superior local variety from Cianjur that has the advantages of distinctive pandan aroma, fluffy rice texture, and high economic value. Meanwhile, Inpari 32 is a new superior variety derived ...

• Pengaruh Pupuk Kandang Ayam dan Pupuk Organik Cair Bonggol Pisang terhadap Produksi Bawang Merah (Allium ascalonicum L.) 

  Maharani, Mutia (Universitas Sumatera Utara, 2025)

  Shallot is a horticultural crop that is rich in nutrients and antioxidants. Low red onion production is not proportional to the increase in consumption due to suboptimal farming systems, poor and suboptimal land conditions, ...

• Peningkatan Pertumbuhan dan Hasil Dua Varietas Bunga Matahari (Helianthus annuus L.) pada Berbagai Media Tanam 

  Nazwa, Saskhya Aura (Universitas Sumatera Utara, 2025)

  Sunflower (Helianthus annuus L.) is an oil-producing crop of high economic value; however, its productivity in Indonesia remains relatively low, necessitating improvement efforts through the selection of appropriate ...

• Pengaruh Pupuk NPK 16:16:16 dan Pupuk Organik Cair Limbah Kulit Pisang Raja terhadap Pertumbuhan dan Produksi Bawang Merah (Allium ascalonicum L.) 

  Balqis, Fitria (Universitas Sumatera Utara, 2025)

  Shallot (Allium ascalonicum L.) is one of the horticultural plant that is often used as seasonings and medicines. Indonesian citizens consuming shallots as their daily necessity that increasing the market demand for ...

• Pengaruh Pemberian Dosis Pupuk KNO3 pada Dua Varietas Melon (Cucumis melo L.) terhadap Produksi dan Tingkat Kemanisan Buah 

  Yuliandra, Ananda Sarah (Universitas Sumatera Utara, 2025)

  Melon (Cucumis melo L.) is one of the horticultural commodities originating from the Cucurbitaceae family. The increasing demand for melon commodities and problems often encountered in melon cultivation, including ...

• Pengaruh Perbandingan Sari Bit (Beta vulgaris L.) dengan Sari Jahe Gajah (Zingiber offinale Rosc.) dan Persentase Gelatin terhadap Karakteristik Mutu Permen Jeli 

  Nahor, Elsaday Indah Gusti Banjar (Universitas Sumatera Utara, 2025)

  This study was conducted to determine the effect of the ratio of beet juice to elephant ginger juice and the percentage of gelatin on the characteristics of jelly candy quality. This study used a completely randomized ...

• Analisis Faktor – Faktor yang Mempengaruhi Loyalitas Pelanggan (Studi Kasus: UMKM Minuman Black Boba) 

  Maulana, Rizal (Universitas Sumatera Utara, 2025)

  This study aims to analyze the factors influencing customer loyalty at the Black Boba beverage MSME in Medan City. In an increasingly competitive beverage industry, understanding customer loyalty is crucial for maintaining ...

• Uji Kinerja Berbagai Jenis Combine Harvester pada Pemanenan Padi di Desa Rawang Lama Kecamatan Rawang Panca Arga Kabupaten Asahan 

  Andika, Wahyu (Universitas Sumatera Utara, 2025)

  This study aims to assess the performance of three type of combine harvesters in rice harvesting in Rawang Lama Village, Rawang Panca Arga District, Asahan Regency. The equipment studied consisted of a Rakindo RK110LZ (mini ...

• Identifikasi Toleransi Kekeringan Beberapa Varietas Kedelai (Glycine max (L.) Merr.) Berumur Genjah 

  Nuh, Muhammad (Universitas Sumatera Utara, 2025)

  Soybean is an important food commodity in Indonesia, but its production is often hampered by climate change and unpredictable weather. Drought stress can reduce plant productivity by disrupting physiological processes ...

• Kajian Pengaruh Penambahan Bioaditif Minyak Atsiri Cengkeh Terhadap Karakteristik Bahan Bakar Biosolar 

  Silaban, Wahyu Irwandi (Universitas Sumatera Utara, 2025)

  Essential oil is one type of organic material with great potential to be used as a fuel additive because it is highly volatile, has low viscosity, and is composed of oxygenated hydrocarbon compounds. Biosolar is a mixture ...

• Analisis Interpretasi Antara Kemiringan Lahan, Hujan, dan Jumlah Tandan terhadap Produktivitas Kelapa Sawit (Elaeis guineensis Jacq) PTPN IV Regional I di Kebun Hapesong Tapanuli Selatan 

  Siregar, M Miftah Ryan Ariefanda (Universitas Sumatera Utara, 2025)

  This study aims to determine and analyze the effects of rainfall, rainy days, number of fruit bunches, and land slope on the productivity of oil palm (Elaeis guineensis Jacq.) at Hapesong Estate, PT Perkebunan Nusantara ...

• Kajian Variasi Suhu terhadap Mutu Biodiesel pada Produksi Biodiesel Non-Katalitik Menggunakan Reaktor Static Mixer 

  Lase, Nur Evelyn (Universitas Sumatera Utara, 2025)

  Indonesia, as a pioneer in the use of biodiesel, has now prepared for the implementation of 40% biodiesel (B40) using crude palm oil in 2025. Biodiesel is an environmentally friendly alternative fuel produced through a ...

• Implementasi Teknologi Humidifikasi Manual Berbasis Mistmaker dan Pendingin Peltier dalam Pengendalian Kelembapan dan Suhu Kumbung Jamur Tiram (Pleurotus sp.) 

  Tarigan, Agung Prawira (Universitas Sumatera Utara, 2025)

  Oyster mushroom cultivation required stable temperature and humidity conditions to support healthy growth and productivity. However, fluctuating environmental conditions often became an obstacle in traditional cultivation ...

• Uji Kinerja Kompor Biomassa Multifungsi Berbasis Pemanfaatan Panas Buang Untuk Konversi Energi Listrik 

  Azhari, Ibrahim (2025)

  Biomass stoves are a renewable energy technology that utilizes agricultural waste as an alternative fuel to generate heat and electricity. The purpose of this study was to analyze the voltage, current, and electrical power ...

• Karakter Morfofisiologi dan Produksi beberapa Varietas Cabai Merah (Capsicum annuum L.) dengan Aplikasi Pupuk Hayati Cair 

  Sahputra, Mhd Hary (Universitas Sumatera Utara, 2025)

  Limited availability of soil nutrients often encourages farmers to rely on inorganic fertilizers continuously, which is a challenge for the implementation of sustainable agriculture. One strategy that can be applied to ...

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