Salam, Abdul Kadir and Marintias, Catri and Rusdianto, Saja and Sunarto, Saja and Djuniwati, Sri and Novpriansyah, Hery and Harahap, Joni T. (1997) Perubahan Fraksi Labil Tembaga Asal Limbah Industri dalam Beberapa Jenis Tanah Tropika Akibat Perlakuan Kapur dan Kompos Daun Singkong. Journal of Tropical Soils, 3 (1). pp. 11-20. ISSN 0852-257X


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Soil labile fractions of heavy metals determine heavy metal bioavailabilities and are suggested to be affected by changes in soil pH and adsorption capacity. Changes in soil labile Cu of tropical soils were evaluated under lime and/or cassava-leaf compost treatments in a laboratory experiment. Loaded with industrial waste containing Cu at O to 40 ton dry waste ha-1, soil samples of Gedongmeneng and Banjaragung (Lampung) and Cihea (Cianjur, West Java) were also treated with lime at O and .5 ton CaCO3 ha-1 and/or cassava-leaf compost at O and .5 ton ha-1. Soil analyses were conducted after soil mixtures were incubated at 40% moisture contents and room temperature for 4 weeks. Industrial waste was found to increase Cu contents in all soils. As reported previously, lime at 5 ton CaC03 ha-1 decreased the DTPA extractable Cu by 11.6-55.0% in a negative correlation with the increase in soil pH. Lime treatment also decreased exchangeable Cu by 26.1-86.7% but the cassava-leaf compost treatment reduced the magnitude of lime effect. Lime showed no consistent effect on soluble Cu. In general soil of Banjaragung showed a greater increase in adsorption capacity with liming, followed by soils of Gedongmeneng and Cihea.

Item Type: Article
Uncontrolled Keywords: Cassava-Leaf Compost. Copper, Lime. Metal Labile Fractions, Tropical Soils
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Pertanian (FP) > Prodi Ilmu Tanah
Depositing User: Abdul Kadir Salam
Date Deposited: 25 Apr 2018 08:44
Last Modified: 25 Apr 2018 08:44

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