Judul: Analisis Perbandingan Aspek Finansial antara Aplikasi Pupuk Kimia dan Pupuk Organik
Abstrak: Management must consider will invesment which be executed that will give advantage, good in the form of increase of effort for seeking of the alternative, then is followed with election of alternative that is very profits from so much the alternative. From background to hence there is its the problem formula is expenditure and earnings from farming can close over paddy farmer operating cost inbrida. Type and Data source applied is secondary data, in the form of first treatment report of usage of chemical fertilizer 100% and organic fertilizer 50% during five years that is the year 2008-2012 and second treatment of chemistry fertiliser use 50% and organic fertilizer 60% during five the year 2008-2012 and treatment of chemical fertilizer 100% and organic fertilizer 0% during five the year 2008-2012. Data collecting applies documentation data. Its the data analysis using quantitative analysis to cover method analysis Payback Period (PP), analysis NPV (Net Present Value), analysis IRR (Internal of Rate of Return), and analysis Net B/C. Based on calculation result which has been done by four appraisal of investment criterions consisted of : NPV, IRR, Net B/C, PBP appraisal of investment of inferential business that comparison of chemical fertilizer 100% and organic fertilizer 50% at rice Inbrida the year 2008-2012 at Skenario (P1, Q1 and S1) has positive NPV value Rp. 79,537,- ; IRR 40 %, and net B/C 5,6 PBP under from acceleration analysis age a period of crop that is 1,8 years. appraisal of investment of inferential business that comparison of chemical fertilizer 100% and organic fertilizer 50% the year 2008 - 2012 at competent inbrida paddy crop to be implemented for period plants second with chemistry fertiliser use 50% and organic fertilizer 60% at inbrida the year 2008-2012 for Skenario (P2, Q2 and S2) has positive NPV value Rp. 118,809,- ; IRR 40 % and Net B/C 5,7 for Pay Back Period under from analysis age with acceleration a period of crop that is 1,5 years, and period plants is third for chemical fertilizer 100% and organic fertilizer 0%. Elementary Scenario has positive NPV value Rp. 86,248,- ; IRR 41% and net B/C 5,6 pay back period 1,7 years. There by influential reality with improvement of paddy productivity inbrida if chemistry fertiliser use degraded and quickens post crop so that chemical fertiliser use and this competent organic fertilizer to be continued.
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Judul: Optimasi Dosis Pupuk Organik yang Diaplikasikan dengan Pupuk Hayati pada Budidaya Padi Organik
Abstrak: The research was conducted at Cibungur, Karawang Wetan, Karawang. Soil analysis carried out at the soil Laboratory, Department of Soil Science and Land Resources, agriculture faculty of IPB. The research was conducted from December 2012 to March 2013. The research design used was Randomized Plots Divided (Split Plot Randomized Block design). This research using a factorial design with two factors, namely bio-fertilizers and organic fertilizers. Data analysis using analysis of variance (F test), if real then by DMRT (Duncan Multiple Range Test) at the level of 5%. Treatment consisted of two biological fertilizer levels that is 2 l ha-1 application-1 and 0 l aplikasi-1 ha-1. Treatment of solid organic fertilizer consist of six levels, namely: 0 ton ha-1, 2 ton ha-1, 4 ton ha-1, 6 ton ha-1, 8 ton ha-1, and 10 ton ha-1 . The purpose of this study was to determine the effect of a combination of organic fertilizer with bio-fertilizers on organic rice farming. Applications POP 10 ton ha-1 resulted height plant, biomass plant, 1000 grain weight, GKP and GKG highest to all treatments. Application POP 8 and 10 ton ha-1 combined with bio-fertilizers can increase the yield of 6 and 10% grain yield, while treatment 2-6 ton ha-1 dont improve outcomes compared with control. POP dose 8-10 ton ha-1 increase grain yield around 10%.
Keyword: organic rice, organic fertilizers, bio-fertilizers

Judul: Karakteristik Anatomi Skelet Kepala Buaya senyulong (Tomistoma schlegelii).
Abstrak: Buaya sepit atau senyulong (Tomistoma schlegelii) merupakan jenis buaya asli Indonesia yang berhabitat di sungai-sungai Sumatera, Kalimantan, dan juga pedalaman Sulawesi. Salah satu ciri khas buaya senyulong adalah bentuk moncong yang runcing dan sempit, namun hingga saat ini informasi mengenai struktur skelet kepala buaya senyulong sangat terbatas. Penelitian ini bertujuan untuk mempelajari karakteristik anatomi skelet kepala buaya senyulong yang dikatikan dengan fungsi dan perilakunya. Penelitian dilakukan secara eksploratif dengan melakukan pengamatan, pencatatan, dan pengambilan gambar dari skelet kepala buaya senyulong. Skelet kepala berukuran panjang 70 cm, lebar 29 cm, dan tingggi 17 cm dengan permukaan kasar pada os nasale, os frontale, os maxilla, os mandibula, os lacrimale, os jugale. Jumlah gigi pada buaya ini sebanyak 78 buah, terdiri dari 4 buah gigi premaxila, 16 buah gigi maxila, dan 19 buah gigi mandibula. Pada regio orbitalis ditemukan dua pasang fenestrae temporales yang berkembang baik. Fenestra supratemporale merupakan lubang oval yang membentang di sepanjang os parietale. Fenestra infratemporale berbentuk segitiga dan dibatasi oleh os squamosum, os postorbitale, os jugulare, dan os quadratum. Os mandibula hewan ini mempunyai symphysis mandibularis yang panjang yaitu garis yang melintang di corpus mandibulae. Secara fungsional ukuran symphysis mandibularis berkaitan dengan adaptasi hewan terhadap diet makan.
Keyword: kepala, moncong, Tomistoma schlegelii