Judul: Manajemen Pemanenan Kelapa Sawit (Elaeis guineensis Jacq.) di Kebun Sei Batang Ulak, PT Ciliandra Perkasa, Riau
Abstrak: The internship program was conducted in Sei Batang Ulak Plantation, PT. Ciliandra Perkasa, Kampar, Riau from Februari to June 2013. This program was aimed to improve knowledge and field work skill, and also to understand the harvest aspect of oil palm on technical and managerial aspect. Harvest planning must be conducted well and precisely to gain optimal crop production. Some problems related with harvesting such as harvest planning, harvest density, harvest rotation, and under or over ripe of harvesting bunch fruit. An inaccurate harvest planning could cause unsuitable result between the prediction and the realization, and the use of harvesters must be suited with fruit condition in the field. Condition of less harvest density that was caused by the lack of ripe fruit, could imply the harvest rotation to be shorter. Shorter rotation could increase the losses during harvest and many of harvesters cut under ripe fruit to meet the standard basis of harvest of 900 kg and harvesting area could also become larger through the time.
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Judul: Pengelolaan Panen Kelapa Sawit (Elaeis guineensis Jacq.) di Kebun Sei Air Hitam, PT Perdana Inti Sawit Perkasa I, First Resources Ltd., Riau
Abstrak: The internship program was conducted in Sei Air Hitam Plantation, PT Perdana Inti Sawit Perkasa I, Rokan Hulu, Riau from February-June 2013. This program aims was to increase knowledge about the cultivation of oil palm, to gain work experience and skills in the management of oil palm harvesting. Harvest planning is done prior to harvest in order to run with harvesting activities optimally. Harvest planning is performed are the calculation of crop density numbers (AKP), assessed the harvest, labor, transportation, harvesting, crop rotation, harvesting facilities and infrastructures. There are some problems in harvesting procces, such as percentage of harvest that was bellow <15%, the use of personal protective equipment that were low, crop rotation that were accelerated and harvest quality is not compatible with company standard. Supervision to the harvesting activity should be improved so the quality of harvest compatible with company standard.
Keyword: Sei Air Hitam Plantation, labor, harvesting oil palm, crop density numbers

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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