Judul: Rencana Pengelolaan Lanskap Pasca Tambang untuk Kawasan Agroforestri di PT. Arutmin Indonesia Tambang Senakin, Kalimantan Selatan
Abstrak: Condition of open pit post-mining usually has not productive. The main problem is environment degradation and soil chemistry which affect soil quality, water quality, and furthermore morphology and topography changing. The ojective of this research is to evaluate and manage biophysics. To achieve land improvements, used approach to analyze land suitability for agriculture purpose which has developed by FAO 1983. Principally, it compares land characteristics and land utilization type as preferences by corporate and local society. Land utilization type is for agroforestry area with Hevea brassiliensis as a main crops. There were some limiting factors which was found: pH, soil base saturation, organic content, and topography in some areas. Around 213,84 hectares was proposed to be managed by local society in Manggis village and 87,63 hectares must be conserved included lake for 57 hectares. There were three combinations of agroforestry, those are Hevea brassiliensis with Oryza sativa (235.93 ha), Hevea brassiliensis with Curcuma oomestica (11.89 ha), and Hevea brassiliensis with Nephelium lappaceum and Durio zibethinus (7.6 ha).
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Judul: Rencana pengelolaan lanskap pasca tambang untuk kawasan agroforestri di PT. Arutmin Indonesia Tambang Senakin, Kalimantan Selatan
Abstrak: Kondisi lanskap pasca tambang pada pertambangan terbuka biasanya sudah tidak produktif. Masalah utamanya adalah degradasi lingkungan dan kimia tanah yang mempengaruhi kualitas tanah, air, dan lebih jauh lagi pada masalah perubahan morfologi dan topografi. Tujuan penelitian ini adalah melakukan evaluasi dan manajemen bio-fisik lahan. Dalam mencapai peningkatan kualitas lahan, digunakan pendekatan analisis kesesuaian lahan untuk tujuan pertanian yang telah dikembangkan oleh FAO 1983. Prinsipnya adalah memandingkan antara karakteristik lahan dengan tipe penggunaan lahan yang menjadi preferensi dari perusahaan tambang dan masyarakat. Tipe penggunaan lahannya adalah untuk kawasan agroforestri dengan karet (Hevea brassiliensis) sebagai tanaman utama. Beberapa faktor pembatas lahan adalah pH tanah, tingkat kejenuhan basa, kandungan bahan organik, dan topografi pada area tertentu. Seluas 213,84 ha diusulkan untuk dikelola oleh masyarakat Desa Manggis dan 87,63 ha harus dijadikan area lindung termasuk danau seluas 57 ha. Terdapat tiga kombinasi tipe penggunan lahan dengan sistem agroforestri diantaranya karet dengan padi gogo (235,93 ha), karet dengan kunyit (11,89 ha), dan karet dengan rambutan dan durian (7,6 ha).
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Agroforest landscape, Hevea brassiliensis, Land characteristic, Land utilization type, Physic-biophysic management

Judul: Pengujian Virus Newcastle Disease Gen VII Isolat Lapang Sebagai Virus Standar Pada Uji Tantang Vaksin
Abstrak: This study was conducted to determine the standard of Newcastle disease virus Gene VII field isolate as a virus challenge to vaccine test. A virus suspension that has previously been tested by HA test then titrated with EID50 using 30 Specific Pathogen Free (SPF) of 10 day old chicken embryonated eggs. In addition, chicken lethal dose50 (CLD50) test were used to determine the virus titer that could cause 50% death of the chicken population. The CLD50 test was used 25 day-old-chickens (DOC) divided into 5 groups. The virus was diluted from 10-1 to 10-8. The 104 to 10-8 dilution of NDV was infected to every group of chicken via eyedrop and intranasal with 0.1 ml/chicken dosage. Haemagglutination test showed that the allantoic fluid were contain high titers of NDV is 512 HAU. The infective NDV that had been titrated by EID50 test showed the virus titers is 109 EID50/0.1 ml or 1010 EID50/ml and the virus titers of CLD50 test e.i 106.48 CLD50/0.1 ml or 107.48 CLD50/ml. These results can be concluded that the NDV Gene VII field isolates were most appropriate to be used as a standard virus to vaccine test
Keyword: Newcastle Disease Virus Gene VII, HA tes, EID50 test, CLD50 test