Judul: Evaluasi kesesuaian lahan untuk tanaman pinus (Pinus Merkusii) pada profil-profil yang berkembang dari bahan piroklastik dan lahar letusan gunung Galunggung, Tasikmalaya
Abstrak: Evaluasi kesesuaian lahan yaitu kegiatan yang membandingkan persyaratan yang diminta oleh tipe penggunaan lahan dengan sifat-sifat atau kualitas lahan yang dimiliki oleh lahan yang digunakan. Penelitian ini bertujuan untuk menentukan dan menilai kelas kesesuaian lahan pada tiga profil di Kecamatan Indihiang yang berkembang dari bahan piroklastik dan lahar letusan Gunung Galunggung, Tasikrnalaya untuk tanaman pillus (Pinus merkusii).
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Judul: Uji Prosedur Evaluasi Kesesuaian Lahan Pinus merkusii : Studi Kasus di BKPH Jasinga – Leuwiliang, KPH Bogor, Jawa Barat.
Abstrak: Evaluasi kesesuaian lahan dilakukan dengan cara membandingkan kualitas lahan masing-masing satuan peta lahan dengan persyaratan penggunaan lahan yang diterapkan. Prosedur yang telah ditetapkan FAO masih mengandung ketidakjelasan. Tujuan dari penelitian adalah menentukan kedalaman lapisan tanah untuk sifat tanah tertentu (pH dan tekstur tanah) yang menjadi penentu tingkat kesesuaian lahan Pinus merkusii serta menguji penerapan Hukum Minimum Liebig dalam kasus-kasus evaluasi kesesuaian lahan tertentu. Data yang diperoleh dari penelitian ini adalah kualitas dan karakteristik lahan serta nilai bonita aktual di lapang. Penelitian ini menggunakan purposive sampling dengan mempertimbangkan keadaan pertumbuhan tegakan P. merkusii. Hasil penelitian menunjukkan bahwa penentuan kedalaman lapisan tanah untuk sifat tanah tertentu (pH dan tekstur tanah) dapat dilakukan pada semua lapisan yang paling tebal, baik pada kedalaman 0 – 30 cm, 0 – 60 cm dan 0 – 100 cm. Penelitian ini juga menunjukkan bahwa pH tanah dan temperatur rata-rata tahunan belum tentu menjadi faktor pembatas dan Hukum Minimum Liebig dapat digunakan dalam evaluasi kesesuaian lahan, tetapi pada kasus-kasus tertentu Hukum Minimum Liebig tidak dapat diberlakukan.
Keyword: BKPH Jasinga – Leuwiliang, bonita, Hukum Minimum Liebig, kesesuaian lahan, Pinus merkusii

Judul: Biology and ecology of the buffalo fly, haematobia exigua de meijere (diptera:muscidae)
Abstrak: The life history of the buffalo fly was observed at room temperature of 27°-29.5°C and at a relative humidity of 48-68 percent. The eggs hatched after 17-22 hours, with an average of 18 hours. First instar larvae measured 1.25 + 0.16 mm long and 0.27 + 0.037 mm wide. reach the second larval stage. It took 6-12 hours to the second instar larvae measured 2.676 +0.187 mm long and 0.353 +0.028 mm wide. The second instar took about 12-24 hours to reach the third larval stage. The third instar measured 6.833 + 0.189 mm long and 0.919 + 0.051 mm wide. It took about 2-3 days for the third instar to become pupae. Duration of the pupal stage was about 5-7 days before the adults emerged. Under laboratory condition, the buffalo fly completed its life cycle in 9.5 to 10.5 days, whereas under field condition it took 9-14 days with an average of 10.5 days. The growth ratio which was based on the measurements of the cephalo-pharyngeal skeleton of each instar was 1.797. The preoviposition period was 8-12 days and mating usually occurred on the 6th or 7th day. The longevity of the male was 29 days, whereas it was 32 days in the female. The range of egg production under laboratory condition was between 20-139 per female fly. The belly and hind legs of the carabao were the most preferred habitat either during cloudy and cool dry or shiny and warm day. When the weather was clear and the carabao was in the shade, the flies tended to be more distributed particularly on the shoulder, dewlap, back and horns. The carabaos had relatively fewer Musca sp. and Stomoxys calcitrans than cattle; never the less carabaos had a higher infestation of buffalo fly than cattle. Oviposition occured either during the day or night but the buffalo flies were more active during the night than in the day time. The effect of various lengths of exposure time of manure in relation to the oviposition was profound. observed, the maximum number of the buffalo flies was occurred when the dung was exposed for 30 minutes. With increasing time of exposure the number and variety of insects also increase. It was evident that Sepsidae and psychodidae were the most dominant insects emerging from the dung. The number of buffalo flies also increased with increasing
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