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标题：Tithonia diversifolia Compost for Decreasing the Activity of Mercury in Soil
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作者：Isrun ; Muhammad Basir-Cyio ; Imam Wahyudi 等
期刊名称：Journal of Environmental Science and Technology
印刷版ISSN：1994-7887
电子版ISSN：2077-2181
出版年度：2018
卷号：11
期号：2
页码：79-85
DOI：10.3923/jest.2018.79.85
出版社：Asian Network for Scientific Information
摘要：Background and Objective: Tithonia diversifolia ( T. diversifolia ) compost could be used for reducing the effect of mercury (Hg) poisoning on heavy metal contaminated soil. Land and plants in Poboya Mining, Central Sulawesi, have been contaminated by mercury. This study aims to determine the decreasing activity of Hg²⁺ peanut and water spinach due to by the application of T. diversifolia compost. Methodology: The green house research was arranged a two-factorial randomized blocked design, in which the first factor was T. diversifolia compost rates including 0 (b₀), 10 (b₁), 20 (b₂), 30 (b₃), 40 (b₃) and 50 t ha¹ (b₄) and these condfactors were plant types including peanut (t₁) and water spinach (t₂). Results: Peanut grown on Hg²⁺polluted soil added with 50 t ha¹ T. diversifolia compost has reduced level of soil Hg²⁺ by upto 71.53% whereas water spinach reduced by up to 67.58%. The addition of 50 t ha¹ T. diversifolia compost also significantly decreased the concentration of Hg²⁺ in the peanut and water spinach roots by up to 86.19 and 84.82%, respectively and that in the plant shoots by 65.93 and 75.04%. Conclusion: Tithonia diversifolia compost can be used for the recovery of agricultural land and plants contaminated by Hg²⁺.