Judul: Identifikasi dan Analisis Tata Guna Lahan dan Kecukupan Air Irigasi di Dua Desa Lingkar Kampus IPB (Desa Cibanteng dan Desa Benteng)
Abstrak: Water is one of the important factors in agriculture cultivation process. Irrigation planning was very important to guarantee water availability especially for paddy field. Water deficiency influenced paddy development and could reduced its productivity. To fulfill plant water requirement, irrigation must be given in right time and quality. The objectives of this research are to identify and analyse land use, irrigation requirements, and irrigation sufficiency in two villages. The result showed that land use in Cibanteng village and Benteng villages were used for settlement, farming and plantation area. Analysing by Map Info software, showed that settlement and farming area in both villages are increased, but the plantation area is decreased. The irrigation water requirement was calculated by Cropwat software and the result for Cibanteng village in second plant time is 1.47 lt/s and for Benteng village is 0.416 lt/s. The irrigation water sufficiency in Cibanteng village is 26.64 lt/s and in Benteng village is 30.42 lt/s. From that irrigation water sufficiency, the farming area in both villages can planted with paddy twice in a year and once planted with dry crop.
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Judul: Kajian Penggunaan Pompa Irigasi untuk Pertanian di Desa Babakan Raden, Kecamatan Cariu, Kabupaten Bogor.
Abstrak: One of the main problems that occur in irrigation supply is the increasing water scarcity at certain times. Actually the water is still available in the basin, it's just necessary some efforts to supply the irrigation needs. Actually the water can be raised by using water pump. If agriculture only depends on surface water and rainfall, it will not be able to increase the productivity of land because the crop water requirement is not fulfilled in some periods. The purpose of this study are determining the irrigation water pricing and finding out profitable irrigated farming. Irrigation water requirement is calculated with CROPWAT 8.0 software by using climate and rainfall conditions as input parameters, and engineering economy is used to calculate irrigation water pricing. The result shows that existence of the pump for lifting up the water to agricultural land could help farmers in increasing cropping intensity and farmers income because the farmers could plant three times a year with cropping pattern rice-rice-secondary crops or rice-rice-vegetables. The most profitable cropping pattern is rice-rice-vegetable because vegetables income is the highest among secondary crops. For sustainable farming, irrigation water cost have to based on irrigation water pricing.
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Judul: Konversi Asam Stearat dan Asam Oleat Menjadi Senyawa Oksazolina dengan Katalis Zeolit Teraktivasi Berbantuan Gelombang Mikro.
Abstrak: Oksazolina adalah senyawa heterosiklik dengan R tertentu dapat digunakan sebagai antikorosi karena mempunyai kerapatan elektron yang tinggi sehingga dapat terabsorpsi kuat pada permukaan logam. Penelitian ini bertujuan menyintesis senyawa 2-heptadesil-4,5-dihidrooksazol dan (Z)-2-heptades-8-en-1- il-4,5-dihidrooksazol dengan melakukan konversi dari asam stearat dan asam oleat menggunakan aminoalkohol sebagai reagen dan zeolit teraktivasi sebagai katalis berbantuan gelombang mikro pada beragam daya. Daya optimum ialah 300 W. Rendemen yang diperoleh yaitu 55% untuk senyawa (Z)-2-heptades-8-en-1-il-4,5- dihidrooksazol dan 6,5% untuk senyawa 2-heptadesil-4,5-dihidrooksazol. Stuktur oksazolina dicirikan berdasarkan spektrum inframerah yang menghasilkan pita spektrum baru pada bilangan gelombang 1650 cm-1 dan 1044 cm-1, masingmasing untuk gugus fungsi imina dan eter, selanjutnya dicirikan dengan teknik resonansi magnetik inti.
Keyword: antikorosi, asam oleat, asam stearat, oksazolina, oksazolina, zeolit