Judul: Pengelolaan limbah kelapa sawit (Elaeis guineensis Jacq.) di Teluk Siak Estate PT Aneka Intipersada, Minamas Plantation, Riau
Abstrak: The internship was conducted at oil palm plantation of Teluk Siak Estate, PT Aneka Intipersada, Minamas Plantation, Riau for three months starting from February 13th 2012 to May 13 th 2012. The main purpose of this internship is to increase knowledge, skill, experience, waste product management of oil palm plantation, and to analyze waste product of palm oil as an organic fertilizer. The analysis results showed that application of empty fruit bunches(EFB) as organic fertilizer has not been able to increase the amount of nutrients on palm oil leaf and increase of palm oil production. Application of palm oil mill effluent (POME) are able to increase the amount of nutrients on palm oil leaf palm oil especially nitrogen and phosphate and a positive impact to increase production of oil palm plantations especially on the productivity (ton/ha).
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Judul: Pengelolaan Limbah Kelapa Sawit (Elaeis Guineensis jacq.) di Kebun Buatan PT Inti Indosawit Subur, Pelalawan, Riau
Abstrak: Waste management aspect was the focus of internship in PT Inti Indosawit Subur from March to June 2011. Besides producing the Crude Palm Oil (CPO) and Kernel Palm Oil (KPO), palm oil industry also produces waste that should be management properly. PT Inti Indosawit Subur has 5.549 ha of palm oil plantation. The processing unit produce some wastes such empty fruit bunch (EFB), palm oil mill effluent (POME), and solid. EFB, POME and Solid have been used in field as organic fertilizer that can reduce usage of inorganic fertilizer. The observation was made on the performance from different block with different treatment of fertilizer / waste application of the workers who spread the empty fruit bunch, the POME flow rotation, flatbed average size, and comparing the crop production. From observation, there was suggested that application of EFB should be improved on supervising to avoid restand. Aplication of POME should also be improved on rotation of application to match with schedule. The comparison of productivity and average weight of fruit bunch proved that application of EFB and POME were effective to reduce inorganic fertilizer without reducing productivity and weight of fruit bunch.
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Judul: Construction of Strongly Optimal Binary Linear Code with Minimum Distance 9 and 11
Abstrak: A binary linear code of length n over q F is a subspace of n q F . A code has three parameters that attached to it, namely length, dimension, and minimum distance. A code with length n, dimension k and minimum distance d is often called [n, k, d ]-code. Usually, when two parameters are given, then we want to find a code that has the best value for the last parameter. Based on Gilbert- Varshamov bound, if a [n, k, d ]-code exists and can not be expanded, we call it a strongly optimal code. In this paper, we construct strongly optimal code with minimum distance 9 and 11. In constructing the code, we created a theorem and algorithm based on Gilbert-Varshamov bound before we implement the algorithm to MAPLE programming language. Because of computational limitations, the program can only construct up to k = 10 for d = 9 and k = 12 for d = 11.
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