Judul: Aplikasi Pemberian Bahan Organik terhadap Sifat Kimia dan Fisik Andisol Cisarua, Bogor
Abstrak: Agriculture practices generally use chemical fertilizers. Application of chemical fertilizers continuously can degrade the soil quality and decrease crop production. The application of organic fertilizers is probably can reduce land degradation. The study was conducted from May 2013 to January 2014. Soil samples were collected from Tugu Selatan village, Cisarua, Bogor. The aims of the study was to investigate the effect of long term organic matter application on Andisol, included its effect on soil chemical and physical properties. The results showed that the 26 years application of organic matter have better effect on soil organic matter (SOM), cation exchange capacity (CEC), exchangeable bases, total N, total and available P in soils. The soil organic matter (SOM) increase from 2.82% to 5.10% with 26 year organic matter application. The CEC value increased up to 36.56 me/100g, while the exchangeable bases such as K+ increased from 0.47 me/100g to 2.11 me/100g and Na+ raised from 0.34 me/100g to 0.94 me/100g. Total N increased from 0.16% to 0.33% and 0.41% respectively on organic matter application for 8 and 26 years. Total P value was 8.04 me/100g increased to 15.90 me/100g, while available P increased from 11.85 ppm to 65.55 ppm within 26 years of organic matter application. Meanwhile, improvement of soil quality also showed by soil physical properties. Soil with long term organic matter application has a more granular soil structure, a darker color and also stable aggregates as shown by the SEM photographs.
Keyword: Bogor Agricultural University (IPB), Soil Quality, Organic Matter, Andisol

Judul: Efektivias Pupuk Organik Komersial Terhadap Perbaikan Sifat Kimia Tanah dan Produktivitas Tanaman Padi Pada Tanah Cangkurawok Bogor
Abstrak: The addition of organic matter can be provide a positive effect on soil chemical, physical, and biological properties. This research was aimed to (1) learn the effect using of organic fertilizers to growth and production of rice, (2) learn the effects of organic fertilizer on several chemical soil properties, and (3) obtain optimum dosage based on farming analysis of rice in Cangkurawok, Bogor. The treatments provided in this research include: control, goat manure 5000 kg/ha and commercial organic fertilizer dose of 250, 500, 750, 1,000, 2,000, 3,000, and 5,000 kg/ha. Components observed were consisted of vegetative and generative growths, production, and chemical soil properties. The results indicated that addition of organic manure and commercial fertilizer have no significant effect on the growth of rice plants. On the contray,the treatments have significant effect on rice production. Commercial organic fertilizer provides increased production higher than manure. In general, organic fertilizer treatments did not significantly affect the chemical soil properties, except for pH and P-Bray I, which are significantly increased, and the P-HCl which is significantly decreased. Farming analysis indicates that 500 kg/ha commercial organic fertilizer treatment is the optimum dosage (R/C of 2.02).
Keyword: Bogor Agricultural University (IPB), Rice, Manure, Commercial Organic Fertilizer, Organic materials

Judul: Infeksi Virus Parainfluenza Pada Anjing
Abstrak: Virus parainfluenza anjing termasuk famili Paramyxoviridae, berbentuk pleomorf dengan ukuran bervariasi (bergaris tengah antara 100-500 nm), berpembungkus peka ether, berisi genom RNA dan secara serologis mempunyai kesamaan dengan virus SV-5 kera; dikenak sebagai salah satu kausa penting dari sindrom "kennel cough". Infeksinya dapat mengenai anjing semua umur yang belum pernah terinfeksi atau mendapatkan vaksinasi mengakibatkan gejala klinis ringan yang terbatas pada traktus respirasi atu infeksi yang secara klinis tidak memperlihatkan gejala nyata. Gejala klinis yang nampak setelah masa inkubasi (1-5 hari) terlewati berupa batuk yang tidak berat selama beberapa hari, berbagai tingkat tonsilitis dan pharyngitis dan kadang-kadang ditemukan kenaikan temperatur rektal antara 1-2 derajat C dari temperatur normal rat-rata. Anjing terinfeksi mengandung virus pada traktus respirasi bagian atas dan bawah serta limfonoduli sampai hari ke 9 setelah infeksi. Penyebaran virus antar anjing terjadi secara aerogen.
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