Judul: Pengaruh Pemupukan dan Pemberian Urin Sapi Terhadap Pertumbuhan dan Tingkat ProduktivitasMedicago sativa L
Abstrak: Medicago sativa L (Alfalfa) is one of kind legume comes from Iran (Cheeke 2005). This research was conducted to measureeffect of fertilized with manure and urin of cattleforgrowth and production of alfalfa with same value of nitrogen where was tried in Ciwidey, Bandung. This research used Randomized Complete Design (RCD) with 5 treatments and 3 replications. The treatment were P1 (NPK (control) 15 g m-2), P2 (manure of chicken 0.33 kgm-2), P3 (manure of cattle 1 kgm-2), P4 (manure of chicken 0.17 kgm-2+ urine 0.3 litersm-2), and P5 ( manure of cattle 0.5 kgm-2+ urine 0.3 litersm-2). The observation was the response of plant which include presentage of seed, plant height, total leaf, as feed and dry matter of leaf and stem, crude protein and crude fiber. The result showed that the treatment of iso nitrogen which fertilized with manure and urin of cattle is not significant togrowth and productivity of alfalfa. Another result of this reaserch is the treatment P4 (manure of chicken 0.17 kgm-2+ urine 0.3 litersm-2) can subtitution NPK and showed the better growth, productivity and crude protein of alfalfa than NPK treatment.
Keyword: alfalfa, iso nitrogen, manure, production, urine

Judul: Pemanfaatan Limbah Ternak Sebagai Pupuk Cair Organik Untuk Meningkatkan Pertumbuhan Dan Produksi Selada (Lactuca Sativa Var. Crispa)
Abstrak: The research are to determine the effect of organic liquid fertilizer derived from manure and urine of cattle, urine of sheep, urine of rabbits and combination between of manure and urine on growth, production, physical quality and freshness of lettuce (Lactuca sativa var. crispa) and to find the best organic liquid fertilizer. The experiment was conducted in the Vegetable Garden, University Farm Cikabayan Bogor Agricultural University, Dramaga, Bogor (processing of organic liquid fertilizer and planting) in December 2010 until February 2011 and Postharvest treatment in the Laboratory of Production, Department of Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University in March 2011. The Method of this research is Randomize Complete Block Design with one factor. The treatment are kinds of organic liquid fertilizer with three replicates. The treatments are treatment without liquid fertilizer application (just water), liquid fertilizer from urine of cattle, liquid fertilizer from urine of sheep, liquid fertilizer urine of rabbit, liquid fertilizer from manure of cattle, liquid fertilizer from combination between manure and urine of cattle, liquid fertilizer from combination between manure of cattle and urine of sheep, liquid fertilizer from combination between manure of cattle and urine of rabbit. The results indicate that the liquid fertilizer does not significantly affect the growth, production, physical quality and freshness of lettuce. This means that, each treatment gives the same effect for all parameters.
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Judul: Kekonsistenan Hamiltonian pada Gerak Gelombang Interfacial
Abstrak: The interfacial wave is an internal wave that occurs at boundary of two layers fluid. It appears because there is difference of mass density between the two layers. The objective of this thesis is to formulate the motion of internal wave with flat base and flat as well as free upper bound surface. The motion equation obtained is a Hamiltonian system. The Hamiltonian in this system is expressed by variable of wave deviation and horizontal component of potential velocity. Under assumption that interfacial wave moves only in one direction, it can be shown that the Hamiltonian depends on the solution of the wave motion equation. The coefficients of the equation depend on the physical characteristics of the two layers of fluid, i.e. thickness and mass density. The numerical results show that Hamiltonian in the system is constant. It is consistent with Hamiltonian characteristic, which does not depend on time.
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