Judul: Manajemen Produksi Heliconia Secara Organik di Sekar Bumi Tropical Farm Payangan-Gianyar, Bali
Abstrak: Heliconia (Heliconia sp.) is tropical cut flowers. Bali is one province in Indonesia which has the optimum agro-climat and good market for Heliconia. Long vaselife and many kind of species of Heliconia make this flower favored. This internship activities carried out to determine the Heliconia (Heliconia sp.) organic farming system and identify Heliconia (Heliconia sp.) collection in Sekar Bumi Tropical Farm (SBTF). SBTF fertillizing used cow manure without sintetic chemical fertillizer. It applied zero waste system. We identified 16 Heliconia varieties growing up well from other 200 varieties exist. It was just 11 varieties from 16 varieties wich favored and marketable. It types among other H. bihai (L.) cv. Yellow Dancer, H. caribaea Lamarck x H. bihai (L.) L. cv. Jacquinii, H. chartacea Lane ex Barreiros cv. Sexy Pink, H. rostrata Ruiz & Pavon, H. sticta Huber cv. Oliveira Sharonii, H. caribaea Lamarck x H. bihai (L.) L. cv. Kawauchi, H. caribaea Lamarck cv. Barbados Flat, H. stricta Huber cv. Bucky, H. caribaea Lamarck cv. Gold, H. collinsiana Griggs var.collinsiana, H. psittacorum L.f. x H. spathocircinata Aristeguieta cv. Golden Torch.
Keyword: Vaselife, Organic farming, Heliconia

Judul: Produksi Tanaman Dianthus chinensis L. sebagai Tanaman Hias Pot dan Hamparan di PT. Bina Usaha Flora, Cianjur, Jawa Barat
Abstrak: Kegiatan magang dilaksanakan di PT. Bina Usaha Flora, Cianjur, Jawa Barat mulai dari Januari hingga April 2020. Pelaksanaan kegiatan magang bertujuan untuk mempelajari dan meningkatkan keterampilan teknis dan manajerial dalam produksi komoditas dianthus di PT. Bina Usaha Flora, Cianjur. Tujuan khusus dari kegiatan magang adalah memperoleh informasi mengenai produksi, kriteria panen komoditas dianthus serta mengevaluasi kelayakan usaha tani dari komoditas tersebut. Metode yang digunakan adalah metode langsung melalui pengamatan di lapangan serta wawancara dengan karyawan perusahaan dan metode tidak langsung dengan melalui studi literatur. Pengamatan meliputi tinggi tanaman, lebar tajuk, jumlah kuntum bunga, dan analisis usahatani. Kriteria panen hasil pengamatan menunjukkan hasil yang sesuai dengan kriteria perusahaan. Nilai R/C ratio pada komoditas dianthus pot dan dianthus polybag yaitu 3,47 dan 2,53. Hasil nilai R/C ratio pada komoditas dianthus pot dan dianthus polybag menunjukkan hasil > 1 yang berarti usahatani layak dijalankan dan bersifat menguntungkan., Internship activities carried out at PT. Bina Usaha Flora, Cianjur, West Java from January to April 2020. The internship aims to learn and improve technical and managerial skills in the production of dianthus commodities at PT. Bina Usaha Flora, Cianjur. The specific objectives of the internship are to obtain information regarding production, and criteria for harvesting the dianthus commodity and, evaluate the feasibility of farming the commodity. The method used the direct method through direct observation in the field and interviews with company employees and the indirect method through literature studies. Observations included plant height, crown width, number of flower buds, and farming analysis. The observed harvest criteria show results that are the company's criteria. R/C ratio values for dianthus pot and dianthus polybag commodities were 3,47 and 2,53. The results of the R/C ratio values for the commodity dianthus pot and dianthus polybag show results > 1, which means that farming is feasible and profitable.
Keyword: dianthus, harvest criteria, polybag, pot

Judul: Approximation of the Median of Poisson Distribution Using the Relation of Poisson-Gamma Distribution
Abstrak: A major drawback of median is that median cannot usually be defined in closed form, even in the cases where their distribution functions are known. This study gives an approximation of the closed form for the median of the Poisson distribution by using the relation of Poisson-Gamma distribution. The approximation uses elementary techniques based on the monotonicity of certain sequences involving tail probabilities of the Poisson distribution and the Central Limit Theorem. Furthermore, a closed form expression for the mean absolute deviation 􀜧|􀜰􀰒 􀵆 􀜯􀝁􀝀􁈺􀜰􀰒􁈻| is also studied. The median is relevant because of the fact that it minimizes the mean absolute deviation of a Poisson random variable (􀜰􀰒􁈻 by considering median as central tendency.
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