Judul: Pengaruh Berbagai Bahan Pembenah Tanah terhadap Sifat Fisik Tanah Latosol untuk Budidaya Tanaman Sayuran.
Abstrak: Vegetables need proper physical conditions of soil, for instance fertile, porous, has a good aeration and drainage, and also capable to holding enough water. Those conditions are required by the smooth root of vegetables to support its growth. Vegetables are generally cultivated on Andosol soils which are spread around the mountain areas and eroded easily, in order that, most of Andosol soils are used as conservation areas or protected forest. The best alternative to bear vegetables cultivation areas is Latosol soils since the soils are dominant and widely spread in Indonesia. However, the physical properties of Latosol soils are not good enough for vegetables cultivation compared with Andosol soils. To overcome these, in this research some soil ameliorant were added into Latosol soils to increase the good properties condition to support the growth of vegetables. The research was aimed to study the effect of various soil ameliorant on physical properties of Latosol soils for vegetables cultivation. There were six treatments in this research, i.e. soil and husk charcoal (1/2:1/2), soil and cocopeat (1/2:1/2), soil and compost (1/2:1/2), soil and compost and mixed husk charcoal (1/3:1/3:1/3), soil and compost and mixed with cocopeat (1/3:1/3:1/3), and control (soil tillage without soil ameliorant addition). Soil sampling for each treatment was carried out after the soils were used to cultivate vegetables and after the harvest time, and those soils still in the naturally condition after for one year. The results showed that ameliorant treatments that were husk charcoal, cocopeat, compost, compost and mixed with husk charcoal, compost and mixed with cocopeat reduced the value of bulk density (BD). Husk charcoal treatment showed the lowest bulk density of the two upper layers (0-5) and (5-10) cm is 0.70 and 0.80 g/cm3, whereas the control showed the highest bulk density of the two upper layers (0-5) and (5-10) cm is 0.83 and 0.93 g/cm3. Application of soil ameliorant treatments also changed the distribution of pore size in soils and improved the water holding capacity of soils. The volume of soil field water from the lowest to the highest in sequence were husk charcoal treatment (39.90%), control (45.61%), compost (47.10%), cocopeat (48.42%), compost and mixed with husk charcoal (52.27%), compost and mixed with cocopeat (52.84%). Treatment with aggregate size ≤2 mm and ≥2 mm from the highest to the lowest in sequence were husk charcoal treatment, cocopeat, compost and mixed with husk charcoal, compost, compost and mixed with cocopeat, control. Soils with ≤2 mm and ≥2 mm too high aggregate sized were not ideal for plant root growth. Therefore, the ideal treatment for plant root growth was compost treatment.
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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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