Judul: Manajemen Pemupukan Tanaman Kelapa Sawit (Elaeis guineensis Jacq.) pada Area Marjinal di Serawak Damai Estate, PT. Windu Nabatindo Lestari, Bumitama Gunajaya Agro, Kotawaringin Timur, Kalimantan Tengah
Abstrak: Internship has been implemented from February 13 to May 13, 2012 in Serawak Damai Estate, PT Windu Nabatindo Lestari (BGA GROUP), East Kotawaringin, Central Kalimantan. Internship activities aimed to find out, train and understand the management palm oil plantations especially fertilization management. The collection of data and information was carried out by the direct method and the indirect method. The direct method was carried out to obtain primary data in the field through observations ranging from preparation to implementation of cultivating, fertilizing effectiveness and efficiency through the principle of 5T, direct discussion with estate manager (EM) and the assistant as well as employee. The indirect method is performed to obtain the secondary data from the garden office such as general conditions of the corporation, the climate condition and a type of soil, the condition of a plant, the organizational structure, production data and data related to activity of fertilization. Primary and secondary data is analyzed with descriptive and quantitative methods. Implementation of fertilizing in SDME Division 2 is generally pretty good ranging from preparation to implementation of fertilizing. Fertilizing effectiveness and efficiency with the principles of 5T are not good enough. Therefore, supervision and infrastructure improvements should be done correctly to improve the quality of fertilizing.
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Judul: Manajemen Pemupukan Tanaman Kelapa Sawit (Elaeis guineensis Jacq.) di Pelantaran Agro Estate, PT. Windu Nabatindo Lestari, Bumitama Gunajaya Agro Grup, Kotawaringin Timur, Kalimantan Tengah
Abstrak: The apprenticeship in general aim to gain experience and skills of the author's work in the management of oil palm gardens both technical and managerial, as well as to study and improve the knowledge of the cultivation of oil palm plantations. Specific purpose studying and understanding the fertilizing management of plant oil palm. The internship is carried out in Pelantaran Agro Estate, Kotawaringin Timur, Central Kalimantan, for four months starting February 14 until June 14, 2011. The internship is carried out using the methods directly, namely by working directly on the field as a daily companion employee, a companion foreman, and escort the assistant division. Specific observation was done by taking the primary and secondary data is then analyzed, either descriptive analysis and quantitative analysis. Pelantaran Agro Estate (PAGE) is located in the village Pelantaran, district Cempaga, county Kotawaringin Timur, province of Central Kalimantan. The broad area that organised of the PAGE is 2 698 hectares. Geographical layout of the PAGE at coordinates between 112,95-113.01 0BT and 2.02-2.11 0LS. The average rainfall is 3 100 mm per year and average rainy days is 112 days per year. Fresh fruit bunch (TBS) production in 2009 is the 18 855 tonnes and increased production in 2010 of 26 952 tonnes with a total area of garden 2 698 hectares. The average productivity of TBS started TM (1-4) sequentially is 4.14, 13.13, 8.31 and 17.10 tons/ha/year. In general the management of the gardens on the PAGE have been implemented correctly in accordance with standard operating procedures (SOP). PAGE had implemented a programme of BMS (Manuring Block System), BSS (Block Spraying System), and BHS (Block Harvesting System) in oil palm cultivation techniques. The fresh fruit bunch on the PAGE have increased every year and the average productivity is not much different than standard productivity on land class S3. Fertilization management in Pelantaran Agro Estate (PAGE) has generally been implemented in accordance with the standards of the fertilizing. The garden has been paying attention to the provisions and recommendations that have been recommended fertilizing and has been referred to the principle of 4 T (right time, right type, right dose, and right methods) in terms of achieving the effectiveness and efficiency of fertilization. However, in the use of labor yet efficient which certainly have an impact on the efficiency of the time and cost. Realization of fertilization has not been fully implemented in accordance with the recommendation. Constraints in the implementation of the fertilizing still found in the marshy and corrugated area.
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Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology