Judul: Penerapan teknik konservasi tanah dan pengelolaan bahan organik serta hara fosfor untuk meningkatkan produktivitas tanah ultisol
Abstrak: Low productivity of Ultisol is caused by some limiting factors, such as nutrient and organic matter content mainly low to very low, high concentration of Aluminum exchangable, pH <5.0. In addition, heavy erosion can drift soil nutrients and organic materials, hence, fertilizing becomes no longer effective and efficient. In order to increase it productivity, efforts are needed in terms of preventing soils nutrients looses and increasing the availability of phosphorus nutrient in the soil. The objectives of this research was to evaluate the application of soil conservation technique, soil organic matter and phosphorous management to increase Ultisol productivity. The research was conducted in Tulang Bawang District, Lampung. The soils used are from the fine textured of Acid Volcanic materials. Research was designed 9 treatments, which are P0: control; P1: no soil conservation technique + SP-36/season; P2: Stylosantes goyanensis strip + SP-36/season; P3: Flemingia congesta hedgerows + SP-36/season; P4: no soil conservation technique + SP-36 + organic matter; P5: no soil conservation technique + rock phosphate; P6: Stylosantes goyanensis strip + rock phosphate; P7: Flemingia congesta hedgerow + rock phosphate; P8: no soil conservation technique + rock phosphate + organic matter. The research results showed the technology package which gave no significant influence to some physical and chemical characteristics of the soils, as well as soil nutrients looses in overland flow. The result also showed the technology gave no significant influence to concentration of sediment and nutrient content. But, the soil conservation techniques can reduce sediment and nutrient losses by the Flemingia congesta and Stylosantes goyanensis hedgerows. However, the results also performed the significant influence of the technology package on crops (maize and cassava) growth and production. The techology package of SP-36 fertilizer application gave higher on corps growth and production than control and tecnology package of Rock Phosphate apllication.
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Judul: Aplikasi Teknologi Sistem Peresapan Biopori Untuk Mencegah Aliran Permukaan Dan Erosi Serta Peningkatan Produksi Tanaman Pada Tanah Latosol Darmaga
Abstrak: Surface runoff and erosion are the main problem causing land degradation on sloping upland agriculture. Biopore infiltration system is one of water harvesting technology developed on arid region. The experiment aimed at studying the effect of biopore infiltration system to control surface runoff and erosion on sloping upland. The research was conducted in Cikabayan experimental farm, University Farm, Bogor, and in ITSL Laboratory, Faculty of Agriculture, Bogor Agricultural University. The Research was done from January 2009 until March 2010. The objective of this research to study the effectiveness of the biopori infiltration system in preventing damage to land by surface runoff and erosion, as well as in improving agricultural production on upland. Completely randomized block experimental design was used to analyze data collected from five treatments arranged randomly in three blocks as replications. Applied treatments were: control (T0); ridge terrace with contour channel according to the size of a width of 20 cm and 15 cm deep in intervals of 2 m (T1); T1 treatment combined with vertical mulching 4 tons of rice straw/ha (T2); T1 treatment combined with 2 infiltration hole in the contour channel at intervals of 1 m, diameter 8 cm and 100 deep, filled with rice straw (T3); and combinations of treatments T2 and T3 (T4). Research results indicated that each treatment very significantly prevents runoff and erosion for corn planting season and upland rice planting season compared to treatment T0. All treatments tends to increasing plant heigh of maize and upland rice except treatment of T2 at corn planting season to treatment T0. Treatment T2, T3, and T4 very significantly increase number of produvtive tillers compared to treatment T0. All treatments tends to increasing dry seed wight compared to T0 except treatment of T4 which is real increased dry seed wight. Treatment with vertical mulch (T2, T3, and T4) had higher seed wight if it is compared to treatment without vertical mulch (T1). All treatments very significantly increase dry rice grain wight if it is compared to T0. Treatment of T3 and T4 tends to produce higher rice grain if it compared to treatment of T1 and T2. Treatment with vertical mulch (T2, T3, and T4) very significantly increased the weight of dry straw if it is compared to treatment T0.
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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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