Judul: Pengelolaan Tanaman Hias Pot (Pot Plant) Di PT Bina Usaha Flora (Buf) Cipanas
Abstrak: Magang dilakukan untuk mempelajari pengelolaan tanaman hias pot (potplant) khususnya pada tanaman Petunia, Torenia, Gloxinia, Ornamental pepper dan Silver dust; mempelajari sistem produksi maupun sistem pemasaran termasuk fluktuasi dan kontinuitas produksi serta penjualan. Didalam kegiatan magang dilakukan percobaan perlakuan paclobutrazol pada tanaman Gardenia jasminoides,
Keyword: 

Judul: Pengelolaan Tanaman Hias Hamparan Famili Asteraceae dan Violaceae di PT. Bina Usaha Flora, Cianjur, Jawa Barat
Abstrak: Kegiatan magang dilaksanakan di PT. Bina Usaha Flora, Cianjur, Jawa Barat selama 3 bulan mulai Januari hingga April 2020. Kegiatan magang ini secara umum bertujuan meningkatkan pengetahuan, keterampilan teknis dan manajerial dalam produksi tanaman hias. Tujuan khusus pelaksanaan magang ini adalah memperoleh pemahaman dan keterampilan dalam proses budidaya, mengetahui kriteria panen, dan mengevaluasi kelayakan usaha tanaman hias hamparan famili Asteraceae dan Violaceae dengan analisis usahatani. Metode yang digunakan terdiri atas metode langsung melalui pengamatan langsung di lapangan serta wawancara dengan karyawan perusahaan dan metode tidak langsung melalui studi pustaka. Pengamatan meliputi tinggi tanaman, jumlah daun, jumlah kuntum bunga dalam satu tanaman, dan diameter bunga untuk menentukan kriteria panen famili Asteraceae dan Violaceae dan analisis usahatani. Proses budidaya yang dilakukan meliputi persemaian, persiapan media tanam, pindah tanam, pemupukan, penyiraman, pengendalian hama dan penyakit, serta panen. Kriteria panen hasil pengamatan menunjukkan hasil yang sesuai dengan kriteria perusahaan maupun literatur, kecuali untuk tinggi tanaman marigold kuning yang sedikit di bawah standar perusahaan. Nilai R/C rasio pada marigold, bunga matahari, dusty miller, dan pansy serta viola yaitu 1.65, 1.44, 1.69, dan 2.47. Hasil analisis usahatani pada seluruh komoditas memiliki nilai R/C rasio >1 yang menunjukkan bahwa usaha layak dijalankan dan bersifat menguntungkan.
Keyword: bunga matahari, dusty miller, kriteria panen, marigold, pansy, viola

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.
Keyword: