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: Pengelolaan Limbah Tanaman Kelapa Sawit (Elaeis guineensis Jacq.) di Kebun Manggala-1, PT. Tunggal Mitra Plantation, Minamas Plantation, Provinsi Riau
Abstrak: The internship was conducted at Manggala-1 Estate, Minamas Plantation, Riau Province from February 10th until June 10th 2014. The aim of this internship was to improve technical and managerial skill. It was conducted using direct method (doing all practice in estate, field observation, and discussion with estate employee) and indirect method (collect all information, archives and files from estate) with waste management as a specific topic. The utilization of palm oil waste which produced from mill, such as empty fruit bunch (EFB), wet decanter solid (WDS), and palm oil mill effluent (POME), as an organic fertilizer and mulch could stimulate plant growth. In this internship, writer observed the effectivity of organic waste land application in Manggala Estate especially EFB and POME application. Overall, palm oil waste utilization could prevent environmental damage and also reduce chemical fertilizer used.
Keyword: Bogor Agricultural University (IPB), POME, land application, empty fruit bunch

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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