Judul: Pengaruh Faktor Pembentuk Agregat Tanah terhadap Kemantapan Agregat Tanah Latosol Dramaga pada Berbagai Penggunaan Lahan
Abstrak: Latosol Soil generally used for agricultural activities. Soil aggregate stability is an important property because it affects to many other soil physical properties. Soil aggregate stability is influenced by various factors of foundation soil aggregate such as soil texture, clay mineral type, exchangeable cations, soil organic matter, biological processes, land use and soil tillage. The purpose of this research is to identify the influence of land use of soil aggregate stability and soil factors that influence on soil aggregate stability in Latosol Soil Dramaga. Analyzed parameters were soil aggregate stability, soil texture, soil organic matter, exchangeable calcium, magnecium, sodium. The analysis showed soil aggregate stability on all land uses were classified to very stable category (ISA> 200). Soil aggregate stabiliy was influenced by land use (P< 0.05). Highest soil aggregate stability was founded in Cocoa Garden and lowest in the Cassava Garden. Land use affected the Latosol Soil aggregates stability and aggregateforming factors such as soil organic matter and exchangeable calcium (P< 0.05). Analysis of variance showed soil aggregate stability were significantly influenced by percent of soil organic matter, exchangeable calcium, magnecium and sodium, and percent of clay and sand (R-Square = 93%, P< 0.05). The exchangeable calcium and magnecium had the highest impact than the other aggregate form factor in soil aggregates stability (P = 0.004).
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Judul: Pengaruh Pupuk Kandang, Zeolit, dan Skim Lateks Terhadap Berbagai Sifat Fisik Tanah Latosol Darmaga
Abstrak: Latosol Darmaga formed in areas with precipitation more than 3000 mm/year and high temperatures which can result in soil erosion by the raindrop impacts that can damage the soil physical properties. Therefore, the action needs to be done that can improve the physical properties of soil. Improving the physical properties of soil can be done with the addition of manure, zeolites, and skim latex. The purpose of this research is to study the influence of the addition manure, the mineral zeolite, skim latex, and there combinations to changes some soil physical properties of Latosol Darmaga and corn production. Research conducted at the Cikabayan garden and Soil and Water Conservation Laboratory since February 2007 until August 2007. The treatment given is A (control), B (manure), C (zeolite), D (manure + zeolite), E (manure + skim latex), F (zeolite + skim latex), and G (manure+zeolit + skim latex). The dose given was 4.5 kg / plot. The results showed that bulk density after the manure, zeolites, skim latex and there combination showed an increase, aggregate stability of treatments G (manure + zeolite + skim latex) significantly more stable compared with treatment A (control), B (manure) , C (zeolite), D (manure + zeolite), E (manure + skim latex), and F (zeolite + skim latex) in the amount of 58.83. Fast drainage pores in treatment B (manure) more high significantly than A (control) and treatment D (manure + zeolite). The addition of manure, zeolites, skim latex and there combination tends to increase the number of slow drainage pores, available water pores and the mean weight diameter (MWD) of 4.76 mm, while the mean weight diameter (MWD) 2.83 mm was decreased. From this research, suggested that addition soil conditioner to the good soil physical properties need to be done in order to conserve the land to avoid degradation.
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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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