Judul: Pengembangan Lembaga Unit Pengolahan dan Pemasaran Bahan Olah Karet di Sumatera Selatan
Abstrak: Smallholder rubber has a significant impact on the growth of the national natural rubber industry. As one of the most important plantation product commodities besides oil palm, coconut, and cocoa, the harvest of rubber plantations, which have been processed as raw rubber materials for industrial needs, also provides a high foreign exchange income for this country. Of course, this proves that the activities carried out by rubber farmers in rubber-producing areas have also contributed to the growth of new economic centers in the countryside. However, during the activities of rubber farmers, who for generations have still tended to apply traditional farming management patterns in the processing and marketing of raw rubber materials, abbreviated as bokar, this often becomes a problem. The efforts of the government and interested parties have not been maximized in providing attention and assistance related to the growth and strengthening of rubber farmer institutions. The existence of rubber farming institutions is a condition that becomes a benchmark to support the direction and pace of development of the rubber industry. This institution certainly must be able to show the level of success or the process of achieving a goal that is measurable in terms of quality and quantity within a certain period. The policy of the Ministry of Agriculture has established a basis for managing smallholder rubber plantations by issuing Minister of Agriculture Regulation No. 38 of 2008 concerning Processing and Marketing Units of Raw Rubber Materials (UPPB). It is known that, at this time, the Permentan has been revised, but the results have not yet been finalized. In 2010, the Ministry of Agriculture launched the Clean Bokar National Movement. At that time, there were more than 200 UPPB spread across various rubber centers in Indonesia, and now the number has reached 759 UPBB in 2021. The provisions for the formation of UPPB include several conditions, including having to cover a rubber plantation area of 100 hectares or having a minimum UPPB of 25 members. Based on plantation statistics, the control of smallholder rubber plantations reaches 85%, or 3 million hectares, of the total area of 3.6 million hectares of national rubber plantations and includes at least 4 million heads of families engaged in rubber farming. South Sumatra, as the largest center of smallholder rubber plantations, dominates the activities of growing and strengthening UPPB, where there are 413 UPPBs until 2023. The collective efforts of rubber farmers to gain more profit and added value through organized marketing by improving the quality of bokar must be pursued by becoming members of the UPPB. However, awareness of this is still constrained by government limitations and the lack of collaboration between existing rubber industry parties. Rubber peasant do not fully understand the importance of rubber farming institutions, plus the role of the rubber peasant community and the UPPB itself in carrying out its functions, they are still focused on marketing bokar alone, although currently there are also UPPBs that have succeeded in having other business units, not only marketing bokar. There are several things that are the focus of this research, namely describing
Keyword: komunitas petani karet, pelembagaan, perkebunan karet rakyat, UPPB

Judul: Perencanaan Pengembangan Organisasi Petani Di Bidang Usaha Perkebunan Karet Rakyat
Abstrak: Karet alam adalah salah satu komoditi perkebunan yang strategis bagi Indonesia Ditinjau dari luas areal dan poduksi, karet Indonesia didominasi oleh karet rakyat Pada tahun 1996 perkebunan karet rakyat tercatat 2.991.628 ha (84%) dengan produksi 1224 562 ton (76%), sisanya merupakan perkebunan besar negara dan perkebunan besar swasta. Namun demikian perkebunan karet rakyat kondisinya belum kuat dan mantap antara lain: 61% dari total areal karet merupakan tanaman tua menghasilkan, produktivitas rendah 673 kg/ha/tahun karena menggunakan bahan tanaman tidak unggul dan minimnya pemeliharaan, serta sistem tata niaga yang kurang menguntungkan bagi petani karet. Di sisi lain pengembangan usaha perkebunan termasuk perkebunan karet dalam memasuki era globalisasi menghadapi berbagai tantangan yang sekaligus merupakan peluang. Salah satu upaya untuk meningkatkan perbaikan mutu bahan olah karet rakyat dan sistem pemasaran hasil, Pemerintah melalui Surat Keputusan Menteri Pertanian Nomor 157/Kpts/HK.050/2/1993 telah membentuk Proyek Pengembangan Unit Pengolahan Karet Rakyat (PPUPKR) yang tersebar di 6 propinsi yaitu Riau, Jambi, Sumatera Selatan, Kalimantan Barat, Kalimantan Tengah, dan Kalimantan Selatan Khusus di Wilayah UPP-PPUPKR Gunung Megang, Kabupaten Muara Enim Sumatera Selatan, Proyek bersama pihak terkait telah melaksanakan pembinaan petani yang menjadi peserta proyek sejak tahun 1993/1994 meliputi penyediaan fasilitas Unit Pengolahan Hasil (UPH), fasilitas kerja bagi petugas Unit Pelayanan Pengembangan (UPP) untuk mendukung kegiatan bimbingan operasional lapangan, perbaikan jalan dan jembatan yang menuju lokasi peserta Proyek, pendidikan dan pelatihan petugas, pelatihan petani, serta penumbuhan kemitraan usaha dengan prosesor/eksportir Namun upava yang telah dilaksanakan tersebut belum mencapai hasil optimal. Hal ini disebabkan organisasi petani (kelompok tani, KUD) yang ada beluns mantap Kelompok tani umumnya belum berperan sebagai kelas belajar, unit produksi, dan wadah kerjasama dalam mengembangkan usaha karet anggotanya Juga KUD yang merupakan lembaga ekonomi petani belum mampu menjembatani kepentingan para petani PPUPKR sebagai produsen bokar dengan kepentingan konsumen mitra usaha. Dari uraian tersebut, rumusan masalahnya adalah bagaimana kondisi internal organisasi petani di Wilayah UPP-PPUPKR Gunung Megang dalam mengembangkan usaha karet rakyat, faktor-faktor eksternal apa yang dapat mempengaruhi pengembangan organisasi petani yang ada, dan bagaimana merumuskan perencanaan pengembangan organisasi petani yang efektif di bidang usaha perkebunan karet rakyat khususnya di Wilayah UPP-PPUPKR Gunung Megang. Tujuan penelitian adalah mengidentifikasi kondisi internal organisasi petani di Wilayah UPP-PPUPKR Gunung Megang dalam mengembangkan usaha karet rakyat, mengidentifikasi faktor-faktor eksternal yang dapat mempengaruhi pengembangan organisasi petani yang ada, dan merumuskan perenanaan pengembangan organisasi petani yang efektif di bidang usaha perkebunan karet rakyat khususnya di Wilayah UPP-PPUPKR Gunung Megang...dst.
Keyword: Manajemen Strategi, Karet Alam, Matriks SWOT, Pengembangan Organisasi Petani, UPP-PPUPKR

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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