Judul: Pengusahaan mawar di daerah batu, malang
Abstrak: Mawar (Rosa sp) merupakan salah satu jenis tanaman hias bunga yang mempunyai nilai keindahan atau daya tarik tersendiri. Disamping itu tanaman inipun mempunyai nilai ekonomi, terbukti dengan adanya kegiatan perdagangan mawar, baik sebagai bunga potong, bunga tabur, tanaman pot maupun sebagai penghasil wangi-wangian. Di Indonesia pada saat ini mawar lebih banyak diperdagangkan sebagai bunga potong dan tanaman pot. Sebagai bahan penghasil wa- ngi-wangian, mawar mempunyai kemungkinan untuk menjadi komoditi ekspor. Kenyataan bahwa usahatani mawar memberikan keuntungan yang cukup besar, maka perlu kiranya mendapat perhatian dalam proses pembangunan sektor pertanian. usaha pertanaman mawar perlu ditingkatkan, baik untuk memenuhi ke- butuhan konsumen dalam negeri akan bunga potong maupun untuk kemungkinan diekspor sebagai bahan penghasil wangi- wangian. Diharapkan dengan berkembangnya pengusahaan ma- war dan bunga potong serta tanaman hias lain, maka petani produsen akan memperoleh peningkatan pendapatan. Meningkatnya daya beli masyarakat dan makin banyaknya konsumen yang beranggapan bahwa bunga merupakan suatu kebutuhan, menggambarkan prospek masa depan bunga-bungaan di indonesia yang cukup menggembirakan. Dengan praktek lapang selama dua bulan di Kecamatan Batu, penulis dapat melihat dan mengalami sendiri suasana Produksi dan resiko yang dihadapi dalam pengusahaan mawar….
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Judul: Pengusahaan mawar potong di Kebun Bali Rose PT. Mid Duta International, Bali
Abstrak: Mawar merupakan salah satu produk tanaman hias unggulan Indonesia. Tanaman ini memerlukan pengelolaan yang intensif dari persiapan bahan tanam hingga pengelolaan pasca panen. Oleh karena itu, penulis tertarik melaksanakan magang di Kebun Bali Rose. Inti dari pelaksanaan magang ini bertujuan untuk meningkatkan pengetahuan, kemampuan, dan keterampilan mahasiswa dalam budidaya mawar potong dan mempelajari aspek manajerial kebun. Kegiatan magang dilaksanakan selama empat bulan dari tanggal 10 Februari hingga 12 Juni. Metode magang yang dilaksanakan adalah secara aktif bekerja di lapangan dengan mengikuti sistem yang ditetapkan oleh perusahaan. Data primer dan sekunder dikumpulkan untuk dianalisis dengan menggunakan analisis deskriptif dan kuantitatif.
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Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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