Judul: Penerapan good agricultural practices (gap) pada pengelolaan pertanaman jagung (Zea mays L.) di Pt. Sungai Menang, Pulau Seram, Maluku
Abstrak: Tujuan khusus dari penelitian ini adalah untuk dapat menganalisa, melakukan observasi, mengimplementasikan dan memberikan solusi terhadap masalah pengelolaan budidaya jagung skala komersial. Metode yang digunakan dalam pelaksanaan kegiatan magang yaitu dengan melaksanakan kegiatan yang sedang berlangsung di kebun serta melakukan pengumpulan data primer dan data sekunder. Penulis mempelajari aspek manajerial dan aspek teknis pengelolaan pertanaman jagung. Pengumpulan data primer melalui pengamatan, bekerja langsung di lapangan, dan wawancara dengan karyawan, sedangkan pengumpulan data sekunder melalui laporan manajemen perkebunan dan studi pustaka, dst
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Zea mays, Good Agriculture Practices, Crop Production

Judul: Keragaan Pertumbuhan Tanaman Jagung (Zea mays L. merr.) di PT Sungai Menang, Maluku Tengah, Maluku
Abstrak: PT Sungai Menang is a company engaged in agriculture with agriculture commodity maize is the main crop . Maize plantations is located in Seram Island Central Maluku regency , Maluku . One of the main problems in the garden Seram is the low population of growing plants,which reached over to 29.53%. The Germination Rate (GR) of 10 varieties of hybrid maize seeds could be > 80%. The lowest GR was found at Bisi-816 85.3 % and the highest is the P-27 and NK-33 is equal to 97.3 %. The experiments were conducted to see the growing seed maize by combining faktor planting depth , water consumption and soil aggregate size . The result showed that maize growth influence by planting depth and water consumption. Highest percentage of maize growth for 2 weeks seedling time was found at palnting depth 7.5 cm and 10 cm with 30 mm of water consumption.
Keyword: soil agregate size, water consumption, planting depth, Resources grow, Population

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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