Salam, Abdul Kadir and Djuniwati, Sri and Widodo, Sri and Harahap, Joni T. (1999) Penurunan Kelarutan Tembaga Asal Limbah Industri di dalam Tanah Tropika Akibat Perlakuan Kapur dan Kompos Daun Singkong. Journal of Tropical Soils, 4 (2). pp. 153-160. ISSN 0852-257X
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Abstract
The roles of lime and cassava-leaf compost in reducing heavy metal solubility in soils demonstrate the probable use of these materials for decreasing the solubility of Cu from industrial waste in soils. Th.is research was to evaluate effects of lime and/or cassava-leaf compost on the solubility of Cu from industrial waste in tropical soils. Three soil orders (Oxisol, Alfisol, and Vertisol) from Lampung and West Java were used as model systems. Lime was given at 0, 2.5, and 5 ton CaCO3 ha-1; cassava-leaf compost at 0, 5, and 10 ton-1; and industrial waste (of metal-spoon industry) at 0, 10, 20, and 40 ton ha-1. Mixture system was incubated at 40% moisture content (room temperature) for 4 weeks, after which soil pH and Cu solubility were determined. The results showed that lime and/or waste apparently increased all soils pH. Cassava-leaf compost slightly increased the soil pH of Oxisol and Alfisol, but the pH of Vertisol was lower in lime-and-waste treated soils at 10 ton compost ha-1 addition. Waste addition significantly increased the soluble Cu. As expected, lime addition significantly lowered the Cu solubility in Oxisol and Alfisol and slightly decreased the soluble Cu in Vertisol. Al.fisol and Vertisol adsorbed more Cu than did Oxisol. Different from previous report with Cu standard solution addition, cassava-leaf compost showed no effect on soluble Cu.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Cassava-Leaf Compost, Copper, Industrial Waste, Lime, 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 08:31 |
| Last Modified: | 25 Apr 2018 08:31 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/6535 |
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