Judul: Pengaruh Pengeringan dan Pencucian terhadap Beberapa Sifat Kimia Tanah Sulfat Masam dari Delta Telang, Musi Banyuasin, Palembang. Sumatera Selatan
Abstrak: Buruknya drainase, rendahnya nilai pH dan tingginya konsentrasi Al3+, Fe2+, H+ dan SO4 2-'. hingga mencapai meracuni tanaman adalah beberapa sifat tanah sulfar rnasam yang tidak menguntungkan dan perlu mendapatkan penanganan yaclg serius. Kemasaman tanah sulfat masam akan meningkat secara drastis saat terjadi Itelteringan. Proses pemasaman maksimal terjadi bila semua ion besi dioksidasi dan dihidrolisis menjadi ferihidroksida.
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Judul: Pengaruh Beberapa Tingkat Pencucian dan Pengapuran terhadap Perubahan Sifat Kimia Tanah Sulfat Masam
Abstrak: Tanah Sulfat Masam (ptensial) merupakan salah satu tanah yang bermasalah, tersebar luas pada daerah pasang-surut di Indonesia, Masalah yang menghanbat perkembangan pertanian di daerah ini umumnya sebagai akibat tingkat kesuburan tanah yang sangat rendah disamping adanya faktor-faktor pembatas kimia yang sangat berat, misalnya ketersediaan Al, Fe, SCq yang sangat tinggi terutama pada keadaan oksidatif serta unsu>unsur mikm yang sering muncul sebagal pembatas pertumbuhan tanaman.
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Judul: Pengukuran Jantung Kelinci New Zealand White (Oryctolagus cuniculus) dengan Radiografi Toraks
Abstrak: This research was conducted to evaluate radiographs heart size of anaesthetized New Zealand White rabbits (Oryctolagus cuniculus) under different combination of ketamine and xylazine. The rabbits were divided into three groups. Group A were anaesthetized using a 35 mg/kg and 5 mg/kg combination of ketamine and xylazine (n=5). Group B were anaesthetized using a 40 mg/kg and 5 mg/kg combination of ketamine and xylazine (n=3) while group C were anaesthetized using 45 mg/kg and 5 mg/kg combination of ketamine and xylazine (n=3). Parameter of observation from left laterolateral view were: 1) the apicobasilar length of the heart (AB), 2) the width of the heart (CD), 3) the distance between the cranial edge of the fifth rib and the caudal edge of the seventh rib perpendicular to the spine (R5-7), and 4) the vertical depth of the toraks (H). Parameter of observation from dorsoventral view were: 1) the length of the heart (L), 2) the width of the heart (W), and 3) the width of the thorax (T). The result from the heart parameters observation that were measured in left laterolateral view and dorsoventral view shows theres no significantly differ among the groups (P > 0.05). The vertebrae heart size (VHS) values obtained from the sum of the length of the long and the short axes on left laterolateral view. The long axes mean values (A) were 4.35±0.26 v and the short axes mean values (B) were 3.59±0.30 v, therefore VHS mean values were 7.94±0.49 v. On the dorsoventral view, the length of the heart mean values (L) were 4.32±0.29 cm, the width of the heart mean values (W) were 3.33±0.26 cm, and the width of the thorax mean values (T) were 5.85±0.30 cm. In normal conditions, the width of the heart should be less than two-thirds the width of the thorax and values obtained of 3.33<3.72 it shows that the heart is in the normal range. The best ratio to calculated the normal heart dimension in the left laterolateral view was compared the long axes with the vertical depth of the thorax, whereas in dorsoventral view, the length of the heart was compared with the width of the heart.
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