Judul: Pengaruh Fosfat Alam, Bahan Organik dan Kombinasinya terhadap Perbaikan Sifat Kimia Tanah dan Produksi Tanaman Terung Ungu (Solanum melongena)
Abstrak: Arable land for farming system is commonly acid soils and has low nutrient content. As its low fertility, it is needed an effort to improve soil fertility and productivity. Podsolik is highly weathered acid soils that has low fertility level, but it has wide spread. Two fundamental factors limit the fertility of acid soils; nutrient deficiencies e.g. P, Ca and Mg, and the presence of phytotoxic substances e.g soluble Al and Mn (Haynes and Mokolobate 2001). Various efforts to improve the chemical properties of Podsolik such as fertilization, organic materials addition and liming. This research was aimed to observe the effect of rock phosphate, organic materials and its combination in improvement of soil chemical properties and crop production of eggplant (Solanum melongena) in Podsolik from Gajrug. The treatment laid out in a randomized complete by design with three replications. Treatment consisted of addition of rock phosphate, SP-36, organic materials, and their combinations. The results showed that the treatment of organic materials (cow dung or rice straw) affected significantly on total-N, available-P, exchangeable K, Ca, and Mg, the uptake of P and Ca, and crop production of eggplant. However, the treatment of singular rock phosphate did not effect significantly on all observed parameters. The treatment of organic materials which is combined with rock phosphate or SP-36 showed a higher crop production of eggplant than the treatment of singular organic materials (cow dung or rice straw). The highest crop production of eggplant was found in treatment of rock phosphate 100% + rice straw. It was followed by the treatment of rock phosphate 100% + cow dung .
Keyword: rock phosphate, P deficiency, organic materials

Judul: Pengaruh Pemberian Fosfat Alam Terhadap Perubahan Sifat Kimia Tanah, dan Kadar Hara Pada Tanaman Jagung (Zea mays)
Abstrak: The utilization of acid soil for agriculture faced several obstacles, including P deficient. It is because P ions sorbed by various soil components, such as Fe-Al ions, and Fe-Al hydrous oxides. One of the efforts made to overcome this problem is the use of natural phosphate in acid soils. This study aims to determine the effect of natural phosphate fertilizers in soil chemical properties and nutrients rate in plant of Latosol (Oxyc Dystrudept) Darmaga. Experimental design used in this study was a randomized design with a single factor, named P fertilizer. Source of P fertilizer used in this study is a natural phosphate and SP-36. Treatment dosage of P fertilizer are, control I (0%), control II (N + K), Std 100% (N+K+SP36), RP 50%, RP 100%, RP 150%, RP 200%, (N + K 50%) + RP 50%, and (N + K 50%) + RP 100%. The results showed that the phosphate fertilizer did not significantly affect soil pH, exchangeable-Al, available-P, exchangeable-Ca, and exchangeable-Mg. phosphate fertilizer have significantly affect only in exchangeable-K. Meanwhile, phosphate not significantly affect the rate of Mg, K, Ca, P and N. Rock phosphate’s application significantly affected the growth of maize on 4 week after planting (MST) and 6 MST. Rock phosphate’s application did differ significantly on increasing cob with husk’s weight and cob without husk’s weight. But rock phosphate’s application did not differ significantly on total weight of stover. The highest percent of crop value in treatment who give rock phosphate fertilizer there is in treatment of RP 150% with 158.1%, and the lowest percent of crop value there is in treatment of (N+K 50%) + RP 50% with 98.6%, and lowest in all treatment there in treatment of Control I with 74.7%. From result of crop value can get a conclusion that rock phosphate fertilizer is better than standard fertilizer (SP36).
Keyword: acid soil, maize, phosphate

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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