Judul: Pengelolaan Tanaman Tebu (Saccharum officinarum. L) di Pabrik Gula Madukismo dengan Aspek Khusus Manajemen Tebang
Abstrak: Sugar is one product that is very important for food security in Indonesia sugar demand is greater than the national sugar production are met by import of sugar. High import sugar can be reduced by increasing national production, with intensification. One way of intensification is do a good management and planned of cutting, loading, and transport, because the poor management can increase the sugar yield losses of 5-25%. Internship aimed to improve the skills to do the cultivation and management of sugar cane plantation. analyze and identify exact, optimal, and efficient of management cutting, loading, and transport on dry land sugar cane plantations. The obbservation results shows that the East Sleman and Bantul gardens have different harvest quality. It is proved by a decrease in brix value of Bantul 2 times bigger than the East Sleman, Bantul stumsps loss greater 2.24 time than East Sleman, and the average performance of East Sleman larger than Bantul 0.1 tons / day / labor. Harvest quality Sleman Bantul lower than the East because the collapsed of the sugar cane plantations
Keyword: Bogor Agricultural University (IPB), management, harvest, sugar cane

Judul: Pengelolaan Tanaman Tebu (Saccharum officinarum L.) di Pabrik Gula Madukismo, PT. Madubaru, Yogyakarta: dengan Aspek Khusus Mempelajari Produktivitas Tiap Kategori Tanaman
Abstrak: The study of the productivity of the various categories of sugarcane held in the Madukismo Millsworking area, Madubaru Company, Yogyakarta. This activity began in February 13 to May 14, 2012. The sample is taken at Sleman and Bantul district. The method used is the direct field observation, data from the division of plant productivity, as well as interviews with farmers. The results obtained on the productivity of down land is higher than up land. Differences in land characteristics influence the productivity of sugarcane. In addition, the downland productivity tended to decrease from the plant cane (PC) to ratoon crop (RC) in each subsequent season. For up land, there is higher productivity at ratoon cane I (RC 1) increase from low productivity in the plant cane (PC) and then back on every ratoon crop the following season. To overcome the low productivity of ratoon sugarcane needed to do the loading or replanting, or ratoon intensif nurse.
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Judul: Peluang Partikel Plasma Berada Pada Dimensi Debye Akibat Gangguan Gelombang Elektromagnetik dengan Menggunakan Persamaan Schrödinger
Abstrak: The solution of Schrodinger equations with plasma Coulomb potential in spherical coordinat results solution wave function and energy plasma particle. Electron probability density at Debye length with thermal effect same as ion, which indicates plasma in neutral state. Electromagnetic waves perturbation of an electric field given to result wave function perturbation system. The probability density of plasma particle due to electromagnetic waves perturbation is the largest when an electromagnetic waves frequency 1.41 times the plasma frequency .
Keyword: Schrödinger, plasma, electromagnetic wave