Sriyani, Nanik and Salam, Abdul Kadir (1998) Accumulation of Lead and Copper and Growth of Several Tropical Weeds in A Lead Contaminated Soil Treated with Lime. Jurnal Agrotropika, 3 (2). pp. 24-28. ISSN 0216-7662


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Being detrimental to living things, lead and copper availabilities in soils must be controlled. One of the important techniques for controlling heavy metal availabilities in soils is liming. Lead and copper availabilities and accumulations and their possible effects on growth of several tropical weeds were evaluated in a glasshouse experiment using a lead contaminated soil. Soil medium was spiked with Pb at 20 mg kg•-1 and treated thoroughly with CaC03 at 4 ton ha-1. After incubation at the soil's field capacity and room temperature for 1 week, soil medium was planted with amaranth (Amaranthus tricolor) and three tropical weeds, i.e. pigweed (Amaranthus spinosus), green kyllinga (Cyperus kyllingia), and alang-alang (Imperata cylindrica) for 4 weeks. Except in the root-zone of alang-alang, the available Pb in soils was significanlly increased by Pb addition and decreased by lime addition, in a negative correlation with pH changes. Except in alang-alang: Pb and lime additions showed no effect on Pb accumulation in plant shoots and plant growth even though the growth of all plants generally tended to decrease by lime addition and be stimulated by Pb addition. Changes in soil available Pb were in good correlations with Pb accumulation and growth of alang-alang.. The soil available Cu and its accumulation in plant shoots were not affected by lime and Pb additions, except for alang-alang, in which lime addition decreased the weed Cu accumulation in soil not treated with Pb.

Item Type: Article
Uncontrolled Keywords: Copper, Lead, Lime, Metal Accumulation, Tropical Soils, Tropical Weeds
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Pertanian (FP) > Prodi Ilmu Tanah
Depositing User: Abdul Kadir Salam
Date Deposited: 26 Apr 2018 03:56
Last Modified: 26 Apr 2018 03:56

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