Judul: Karakteristik Hubungan Infrastruktur Pertanian dan Pola Ruang Terhadap Neraca Pangan (Studi Kasus Lahan Pertanian Pangan Berkelanjutan Kecamatan Tarogong Kidul, Kabupaten Garut)
Abstrak: The availability of agricultural land in Tarogong Kidul District is threatened because Tarogong Kidul belongs to urban area of Garut. The purposes of this research are to determine, (a) the spatial distribution of land use and paddy fields, (b) the influence of agricultural infrastructure on the agricultural land development, and (c) the level of food security and status in Tarogong Kidul. The techniques to determine spatial distribution of land use in 2007 and 2014 are by digitizing process and interpretation based on IKONOS imagery in 2007 and 2012. The influence of agricultural infrastructure were measured by paddy fields area in 2007 and 2014 based on road border 50 – 800 metres, identification of irrigation network and its effect on the productivity. Hierarchy analysis process and overlay results from the previous maps were used to determine rice fields which are vulnerable to conversion and the level of local food security. Land use of Tarogong Kidul is dominated by paddy fields and settlements. Paddy fields spread out at the south and west while settlements spread out at north and east that is adjacent with urban of Garut. The results showed that road border, road status, irrigation and productivity has consecutive weights of 0.48, 0.47, 0.04, and 0.01. Based on the map, the highly vulnerable status of conversions are located near urban Garut and spread out through out the district. Based on food balance sheets, there are six villages deficit status and 6 villages surplus status. Theory this analysis of the food security status of South Tarogong will be surplus until 2016.
Keyword: Bogor Agricultural University (IPB), Paddy Fields, food balance sheet, analysis hierarchy process, agricultural infrastructure

Judul: Analisis Ekonomi Sumberdaya Lahan Usahatani Padi Sawah untuk Mendukung Pertanian Pangan Berkelanjutan di Kabupaten Garut
Abstrak: The main objective of this research is to develop sustainable rice farming systems in Kabupaten Garut based on land capability. Each farming system has different input-output structures. The study showed that 57,91% of total paddy area was conducted on unsuitable land. Such a system needs higher inputs and influences the farmers’ income. The efficiency report showed different results based on the applied approach, either constant return to scale (CRS) or variable return to scale (VRS). The average efficiency score of rice farming systems using VRS approach was higher than using CRS approach for both land capabilities, i.e. 72-83%. This score range means that technically those farming systems had excess capacity between 17-28%. Land productivity change of rice farming system estimated by monetary valuation showed that on suitable land occurred appreciation, while on unsuitable one occurred depreciation. The result of feasibility analysis showed that the rice farming system on suitable land was feasible to be conducted, while on unsuitable one was unfeasible. The value of producer surplus of rice farming system on suitable land was higher than on unsuitable one. The result of optimization analysis showed that there were some areas in 7 sub-districts better not to produce rice since inefficient to be carried out, i.e. Kecamatan Kadungora, Pameungpeuk, Samarang, Banjarwangi, Cisewu, Talegong and Cikelet.
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Judul: Katalis Zink Ferit Tersubstitusi Cu untuk Oksidasi Benzil Alkohol
Abstrak: Katalis berperan dalam menurunkan energi aktivasi. Katalis ZnFe2O4 dan ZnFe2O4 tersubstitusi Cu disintesis menggunakan metode kopresipitasi untuk digunakan dalam oksidasi benzil alkohol. Katalis dicirikan dengan spektrofotometer inframerah (FTIR) dan difraktometer sinar-X. Spektrum FTIR menunjukkan puncak serapan dari ikatan Zn-O dan Fe-O masing-masing pada rentang 559‒575 cm-1 dan 419‒447 cm-1. Difraktogram menunjukkan terbentuknya fase tunggal Zn0.6Cu0.4Fe2O4 pada katalis ZnFe2O4 tersubstitusi Cu 20%. Benzil alkohol dioksidasi dengan sistem refluks. Konversi benzil alkohol meningkat dengan meningkatnya suhu. Kadar benzaldehida yang dihasilkan dengan katalis ZnFe2O4 tersubstitusi Cu 20% lebih tinggi dibandingkan dengan katalis ZnFe2O4 yang tidak tersubstitusi dan yang tersubstitusi Cu 60 dan 80%. Hal tersebut menunjukkan bahwa katalis ZnFe2O4 tersubstitusi Cu 20% memiliki kinerja yang lebih baik dalam oksidasi benzil alkohol menjadi benzaldehida dengan kadar benzaldehida 8.763%.
Keyword: Benzil alkohol, katalis, oksidasi, ZnFe2O4