Judul: Budidaya Trichantera gigantea untuk Peningkatan Pertumbuhan dan Produktifitas Tanaman Berbasis Jarak Tanam dan Pemupukan
Abstrak: Trichantera gigantea adalah hijauan sumber protein yang berpotensi sebagai pakan ruminansia dan monogastrik yang diuji pertumbuhan dan produktivitasnya pada penelitian ini. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) dengan 2 faktor. Faktor pertama adalah jarak tanam antara 100 cm x 50 cm (J1), 100 cm x 100 cm (J2), dan 100 cm x 150 cm (J3), dan faktor kedua adalah pemupukan menggunakan tiga jenis pupuk diantaranya pupuk kandang 1kg/lubang tanam (P1), pupuk NPK 15g/lubang tanam(P2), dan pupuk kombinasi (pupuk kandang 0.5kg + pupuk NPK 7.5g)/lubang tanam (P3). Peubah yang diamati adalah tinggi vertikal, pertambahan jumlah cabang dan daun, warna daun, jumlah daun yang dipanen, dan berat kering daun. Hasil yang diperoleh dianalisis menggunakan analisis sidik ragam (ANOVA) dan diperoleh hasil bahwa pupuk kandang memberikan pengaruh yang paling baik terhadap jumlah cabang, jumlah daun, jumlah daun yang dipanen, dan berat kering daun. Interaksi kedua faktor berpengaruh signifikan terhadap tinggi vertikal pada panen ke-2 dan warna daun pada panen ke-1.
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Judul: Pengembangan teknik propagasi vegetatif Trichantera gigantea dengan pemberian asam indol butirat (IBA) dan Inokulasi cendawan mikoriza
Abstrak: Trichantera gigantea is a broad leaf forage, whic11 has high protein content but still very rarely cultivated in Indonesia. A suitable propagation technique to develop this plant using by Indol Butiric Acid and mycorrhyzal inoculation is considered to improve succesfullness of plant development. The experiment was conducted to investigate methods of Trichantera gigantea propagation. Complete randomized design was used as an experimental design with 0; 50, 150, 300, 500 ppm and without and with mycorrhyza. Data were analyzed by using ANOVA and Least Significant Different. The result showed that the plant without Indol Butiric combined with mycorrhyza resulted in the highest @<0.05) buds number and root dry weight. 'Xhile mycorhyza it self improved significantly (p10.01) buds number and dry weight of root. Interaction between IBA and mycorhyza significantly (p<O.05) influenced dry weight of biomass and root infection percentage Keywords : Techniques of vegetative propagation, Trichantera gigantea, IBA, mycorhyza
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Judul: Persamaan Korteweg-de Vries Orde Tinggi untuk Menggambarkan Gerak Gelombang Internal
Abstrak: The ocean can be considered of layers of fluid that each layer has a constant density. Internal waves are waves occur in the interface of every'two layers with different density. Because it occures underneath the surface of the ocean, it is invisible. One of internal waves is internal solitary waves. One of formulation that can describe intemal waves movement is KdV equation. KdV equation is derived from governing equations of ideal fluid in Lagrange formulation using asymptotic method. On this thesis, KdV equation is derived in higher order and then its solution is derived by using internal solitary waves assumption. An example of a two-layer fluid is a case will be used. By using Mathematica6 software, for this case will be obtained the coefficients in lower and higher order explicitly and the corresponding between coefficients and relative lower layer depths and fluid depths, the corresponding between coefficients and relative densities, and also observed the different between solitary waves in lower and higher order.
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