Judul: Analisis Kesesuaian Agroklimat Tanaman Tebu (Saacharum officinarum) di Kalimantan Selatan
Abstrak: Sugar cane (Saacharum Officinarum L) is a plant where sugar came from. Sugar cane has a distinct economic potential. The needs of sugar in this country is getting bigger every year, and it makes government must act faster to give people needs. The purpose of this study is to make South Borneo as a new solution for increasing domestic production of sugar cane. South Borneo has a huge suitable area to expand this commudity. This study is based on the method as described by FAO and used GIS capability for an integration of land qualities to create land unit. A simple map subsystem (Arcview GIS) was used for basic data and models result demonstration on a map. Climatic and soil requirements for sugarcane growth were identified and a land suitability map was produced by overlaying the climatic and soil suitability maps. The land with good capability for agriculture uses is classified as highly suitable (S1) and moderately suitable (S2), the land with a lower quality is classified as a marjinally suitable (S3) and not suitable (N). According to results, 49,26% of the total area or about 1.930.240 ha was good capable for sugarcane uses, and 50,74% is not dedicated for agriculture. The most suitable areas are found in the south of the province. In the rest of the province climatic or soil conditions are expected to restrict sugarcane growth. The results of this study can be used for further research on the possibilities for a large-scale commercialisation of the crop in South Borneo and in other regions with favourable ecological conditions.
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Judul: Pewilayahan tanaman tebu berdasarkan analisis neraca air di Sumatera Utara
Abstrak: Penelitian ini bertujuan untuk menentukan wilayah (zona) agroekologi untuk pengembangan tebu berdasarkan potensi bio-fisik dan menentukan wilayah yang sesuai untuk pertanaman tebu berda- sarkan analisis neraca air di Sumatera Utara. Konsep dan metodologi pendekatan yang digunakan dalam pene- litian ini terdiri dari beberapa tahap. Pertama menentukan wilayah agroekologi tebu melalui super-imposed peta tanah, isohyet, topografi (elevasi) dan lereng. Wilayah agroekologi tebu yang dinyatakan sesuai adalah daerah yang memiliki curah hujan 1000 8 %. 2500 mm per tahun, elevasi 0 1000 m dpl. dan lereng 0 - Kedua, penentuan wilayah kesesuaian tebu dengan "matching" wilayah agroekologi dengan sifat fisik dan kimia lahan (sesuai persyaratan tumbuh tebu). Selanjutnya ditumpang-tindihkan dengan peta tata guna hutan kesepakatan (TGHK)…dst
Keyword: Field crops, Sugar cane

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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