Browsing E-Journals by Author "Pujiastuti, Elisabeth"

Now showing items 1-8 of 8

    • Erosi Tanah sebagai Fenomena Pendahulu Bencana Banjir: Suatu Kajian Fisik 

      Pujiastuti, Elisabeth (CDRM-CDS Universitas HKBP Nommensen, 2009-02)
      Flood is one of climatic hazards and is considered as a human-made disaster. Soil erosion is one phenomenon that proceed the flood. Soil erosion is a loss of soil or soil part from one place that transported by water or ...

    • Fenomena Toksisitas Besi pada Tanaman Padi Sawah yang Ditanam pada Tanah Masam 

      Pujiastuti, Elisabeth (Universitas HKBP Nommensen, 2007-02)
      A desk research was conducted to study the phenoenon of iron toxicity in rice planted in acid wetland soils. Dry lands with high level of weathering that be converted to paddy land shows many problems; one of them is the ...

    • Logam Berat sebagai Polutan dan Efek Sampingnya terhadap Mikroorganisme Tanah 

      Pujiastuti, Elisabeth (Kopertis Wilayah I Nanggroe Aceh Darussalam (NAD) – Sumatera Utara, 2006-08)
      A literature study is done to find out the role of heavy metals as a kind of pollutants in the environment and their side effect to soil microorganisms. The study shows that microorganisms are involved in many important ...

    • Pengaruh Dosis Rustica Yellow dan Jarak Tanam terhadap Pertumbuhan dan Hasil Tanaman Kacang Hijau (Vigna radiata, L.) 

      Pujiastuti, Elisabeth; Hutagalung, Oloan; Pandia, Lefiana (Universitas Katolik Santo Thomas Sumatera Utara, 2001-03)
      An experiment studied the effect of dose of Rustica Yellow (RY) and spacing on growth and yield of mungbean was carried out from August until December 1997 at KP Sei Melingkar, Experiment Station of Agriculture Faculty of ...

    • Pengaruh Komposisi Media Tanam dan Air Siraman terhadap Perkecambahan Benih Mengkudu (Morinda citrifolia, L.) 

      Pujiastuti, Elisabeth; Siregar, Benedicta; Sitinjak, Dirto (Universitas Katolik Santo Thomas Sumatera Utara, 2004-01)
      Penelitian yang bertujuan untuk mempelajari pengaruh komposisi media tanam dan volume air siraman terhadap perkecambahan benih mendkudi dilaksanakan di Kebun Percobaan Unika St. Thomas SU pada bulan November 2001 hingga ...

    • Pengelolaan Hara Padi pada Tanah Sawah demi Peningkatan Efisiensi Pupuk 

      Pujiastuti, Elisabeth (Universitas Katolik Santo Thomas Sumatera Utara, 2006-09)
      The problem in soil fertilizing today is the low fertilizer efficiency. The attempt to raise the fertilizer efficiency is done especially by improving the agronomical techniques, as in the agronomy of paddy rice. Fertilizer ...

    • Pertumbuhan Lima Galur Harapan Padi Gogo pada Tanah Podsolik Merah Kuning 

      Pujiastuti, Elisabeth; Hutagalung, Oloan; Sidauruk, Lamria; Saragih, Agusta; Togatorop, Jusri (Universitas Katolik Santo Thomas Sumatera Utara, 2005-12)
      Penelitian ini dilakukan untuk mempelajari pertumbuhan lima galur harapan padi gogo pada tanah Podsolik Merah Kuning (PMK). Kelima galur tersebut merupakan hasil seleksi Hutagalung bersama mahasiswa Jurusan Agronomi ...

    • Studi Awal Perkecambahan Biji Mengkudu (Morinda citrifolia, L.) 

      Siregar, Benedicta; Sitorus, Betty; Pujiastuti, Elisabeth (Universitas Katolik Santo Thomas Sumatera Utara, 2002-01)
      Penelitian ini bertujuan mendeskripsi stadia perkecambahan mengkudu. Penelitian dilaksanakan di Kebun Percobaan Unika St. Thomas SU, Desa Tanjungsari, Medan, mulai bulan Oktober hingga Desember 2001. Biji yang digunakan ...