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All Journal SAINS TANAH - Journal of Soil Science and Agroclimatology
Wirakrama, Deva Maharani
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Metal absorption by pigweed and napier grass in biochar-treated soils Salam, Abdul Kadir; Wirakrama, Deva Maharani; Dani, Kurnia Rahma; Aini, Septi Nurul; Novpriansyah, Hery; Supriatin, Supriatin
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 2 (2025): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i2.93463

Abstract

Heavy metal absorption by plants is suggested to be affected by soil treatment with different types of biochar. Due to various types of available biochar materials in the environment, effects of three representative biochar types were evaluated in a greenhouse experiment using polluted soils planted with pigweed (Amaranthus spinosus L.) and napier grass (Pennisetum purpureum Schumach). Soil treatments were conducted with biochar of rice (Oryza sativa)-husk, corn (Zea mays)-cob and cassava (Manihot utilissima)-stem at 10 Mg ha-1. Soils and plants were analysed for Cu and Zn after a 4 weeks plant growth. The results showed that Cu and Zn accumulation by pigweed and napier grass were higher in soils polluted with more Cu and Zn. Pigweed in general acted as phytoextractor, accumulated more Cu and Zn in shoots, while napier grass as phyto-stabilizer, accumulated more Cu and Zn in roots. Pigweed accumulated Cu more effective than napier grass while napier grass more effective in Zn accumulation. Unlike rice-husk or corn-cob, cassava-stem biochar increased the soil Cu and Zn concentrations. Rice-husk and corn-cob enhanced but cassava-stem biochar decreased Cu and Zn accumulation by pigweed and napier grass. Rice-husk and corn-cob biochar showed better potential than cassava biochar for soil  Cu and Zn phytoremediation by pigweed and napier grass in heavy-metal polluted tropical soils.
Co-Authors Abdul Kadir Aini, Septi Nurul Dani, Kurnia Rahma Novpriansyah, Hery Supriatin Supriatin, Supriatin