Judul: Studi Difusi Inovasi System of Rice Intensification (SRI) di Kabupaten Tasikmalaya (Kasus di Dusun Muhara Desa Banjarsari Kecamatan Sukaresik Provinsi Jawa Barat)
Abstrak: So far, research on most of the SRI innovation emphasizes the technology aspect. Meanwhile, research regarding the introduction of agricultural innovations to the farmers in Indonesia more emphasis on adoption of innovation at the level of individual farmers. This study aimed to determine (1) SRI innovation distribution maps in Tasikmalaya District in the Muhara Hamlet especially, since introducted until the research conducted, (2) SRI innovation diffusion process, particularly innovativeness, the pattern of adopter categories that occurred in the community and the rate of paddy SRI innovation adoption and the factors that influence it, and (3) whether there is any problem in implementing innovative programs SRI in Tasikmalaya District, particularly in the hamlet of cases and the factors influencing it. This study found that the majority of those classified as low in productivity, income level, the rate of introduction of SRI innovation from the mass media, the level of participation of farmers following the extension, nonformal education level and household level stratum of farmers, while classified as medium in terms of level complexity, triability level, observability level, the level of adherence to conventional cultivation farmers, farmers 'level of integration, the level of diversity of SRI innovation counseling methods, the level of formal education, communication and behavior patterns as well as high in SRI type of innovation decision making, the level of farmer’s needs for innovation SRI and adoption rate of SRI innovation. SRI has been running from 2006, in Hamlet Muhara but still found some problems that arise. The problem is not locally available organic fertilizers, pest control is still low and the perceived marketing SRI paddy farmers still do not provide benefits for not providing the expected added value. Therefor, need assistance in the form of supplying the holding of a couple holding livestock in the form of goats, chickens, guinea pigs, ducks and other in a revolving system from one farmer to another farmer, induction of pest control experts to provide training how to cope with pests by using the method of Participatory Rural Appraisal (PRA) and the importance of awareness about organic agriculture, there is a willingness from the Department of Agriculture Tasikmalaya to make efforts so that SRI rice marketing can provide significant benefits for farmers by establishing agreements with distributors who can market the SRI paddy farms in Muhara with competitive prices and also provide training to farmers on organic agriculture certification standards set
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Judul: Tingkat Persepsi dan Adopsi Petani Padi terhadap Penerapan System of Rice Intensification (SRI) di Desa Simarasok, Sumatera Barat
Abstrak: System of Rice Intensification or SRI is one of the methods in rice cultivation techniques. SRI is a rice cultivation practice that gives more attention to the conditions of better plant growth, especially in the root zone compared to traditional cultivation techniques. The aims of this study are to identify the perception and adoption level of farmers’ adoption in implementing SRI method and to analyze the factors that influence the adoption of SRI method. A questionnaire survey was conducted at Simarasok Village, Baso Sub-district, Agam District, West Sumatera to 35 farmers by purposive sampling. The data were processed by using logistic regression. The results showed that 57.1 percent of respondents had a good perception of the adoption of SRI while the remaining 42.9 percent had a bad perception. Meanwhile, the adoption rate of farmers was 51.4 percent of respondents have implemented the method in accordance with the guidelines of SRI and the remaining 48.6 percent have not yet. Logistic regression analysis showed that there were three variables that significantly affect the rate of SRI adoption which are farming experience, age and level of perception.
Keyword: Bogor Agricultural University (IPB), purposive sampling, rice cultivation, logistic regression analysis

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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