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Pengaruh Pemberian Pupuk Hayati Mikoriza Terhadap Pertumbuhan Tanaman Bawang Daun (Allium fistulosum L.) S. Pulungan, Ahmad Shafwan; Rangkuti, Marlinda Nilan Sari; Malau, Elfrida; Finanta, Olyfiah; Atika, Zuhairah
Jurnal Ekonomi Pertanian dan Agribisnis Vol. 1 No. 1 (2023): Juli - Desember
Publisher : CV.ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62379/jepag.v1i1.1298

Abstract

Leeks (Allium fistulosum L.) are a type of vegetable plant in the genus Allium which is widely cultivated in Indonesia. Scallions are also a plant that is often used as an additional spice in cooking. In general, the production of leek plants (Allium fistulosum L.) really requires a good level of soil fertility where the level of soil fertility is also determined by the microorganisms contained therein. For the living environment such as soil, the presence of microorganisms can determine the level of soil fertility and improve soil conditions. The aim of this research was to examine the effect of mycorrhizal biofertilizer on the growth of leek (Allium fistulosum L.) and determine the effect of mycorrhizal biofertilizer on the growth of leek (Allium fistulosum L.). The method used in the research was a laboratory experiment which was carried out directly by researchers at the Microbiology Laboratory, Medan State University. The results of this research were that the treatment of mycorrhizal fertilizer on leeks had 2 parameters, namely plant height and number of leaves, which had an optimal effect. Based on the average yield data from the yield table, the application of a single mycorrhizal fertilizer to red spinach plants really had a big influence on its growth, where the height and number of leaves obtained each week increased 2 times more.
TESTING THE ANTIBACTERIAL ACTIVITY OF MORINGA LEAF (Moringa oleifera L.) ETHANOL EXTRACT ON THE GROWTH OF THE BACTERIA Propionibacterium acnes IN VITRO Rahmi, Nisrina Afiqah; S. Pulungan, Ahmad Shafwan
Jurnal Biologi Sains dan Kependidikan Vol 4, No 2 (2024): BIOSAINSDIK : Jurnal Biologi Sains dan Kependidikan
Publisher : Prodi Tadris Biologi Fakultas Agama Islam Universitas Muhammadiyah Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37598/biosainsdik.v4i2.2260

Abstract

ABSTRACTThis study aims to determine the antibacterial activity of ethanol extract of Moringa oleifera L. leaves against the growth of Propionibacterium acnes bacteria in vitro and to determine the active compounds contained in the ethanol extract of Moringa oleifera L. leaves. This research is experimental and the method used is disc diffusion, namely by observing, measuring, calculating and analyzing the diameter of the growth inhibition zone of P. acnes which forms around the disc containing ethanol extract of Moringa leaves. The results of antibacterial activity show that the ethanol extract of Moringa oleifera L. leaves has antibacterial activity against the growth of Propionibacterium acnes bacteria and the active compounds contained in the ethanol extract of Moringa oleifera L. leaves which were tested using the phytochemical screening method, namely tannin and saponin compounds, and flavonoids.Keywords: Ethanol, Moringa leaves, antibacterial, Propionibacterium acnes. 
Pengaruh Model Pembelajaran Project Based Learning Berbantuan Video pada Materi Ekosistem terhadap Kemampuan Berpikir Kritis Siswa Kelas X di SMA Negeri 2 Pangururan Sinurat, Harry Anugrah Sinurat; Sidabutar, Hudson; S. Pulungan, Ahmad Shafwan
DIKSI: Jurnal Kajian Pendidikan dan Sosial Vol. 6 No. 3 (2025): Diksi: Jurnal Kajian Pendidikan dan Sosial
Publisher : Yayasan Pendidikan Bima Berilmu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53299/diksi.v6i3.2178

Abstract

Fokus dalam penelitian ini bertujuan mengetahui seberapa baik pelaksanaan dan pengaruh model Project Based Learning berbantuan video terhadap kemampuan berpikir kritis siswa pada materi ekosistem. Jenis penelitian menggunakan Quasi Eksperimen dilakukan dengan populasi seluruh kelas X di SMA Negeri 2 Pangururan.  Analisis data menggunakan metode uji hipotesis melalui independent sample t-test. Model pembelajaran Project Based Learning berbantuan video lebih mampu meningkatkan kemampuan berpikir kritis siswa dengan nilai signifikansi (2-Tailed) yaitu 0,000 yang artinya adanya pengaruh model pembelajaran Project Based Learning, adapun total persentase yang diperoleh berdasarkan indikator yaitu 83% dengan kategori kritis.