Comparative efficiency of wheat straw and sugarcane bagasse biochar reduces the cadmium bioavailability to spinach and enhances the microbial activity in contaminated soil |
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Authors: | Saqib Bashir Muzammal Rehman Muhammad Yousaf Abdus Salam Allah Bakhsh Gulshan Javaid Iqbal |
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Institution: | 1. Department of Soil and Environmental Science, Ghazi University, Dera Ghazi Khan, Pakistan;2. College of Resources and Environment, Huazhong Agricultural University, Wuhan, P. R. China;3. saqibbashir416@yahoo.com;5. MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China;6. College of Resources and Environment, Huazhong Agricultural University, Wuhan, P. R. China;7. Department of Botany, Ghazi University, Dera Ghazi Khan, Pakistan;8. Department of Agronomy, Ghazi University, Dera Ghazi Khan, Pakistan |
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Abstract: | AbstractBiochar is considered a novel soil amendment for cadmium (Cd) stabilization in contaminated soils. A pot experiment was conducted to examine the efficiency of wheat straw and sugarcane bagasse induced biochar on Cd mobility in soil and its bioavailability to spinach in contaminated soil. Soil pH, Cd contents in plant tissues and microbial biomass were examined. Results showed that Cd was significantly decreased by 30.95% and 20.83% with wheat straw and sugarcane bagasse biochar at 2% application rate respectively, relative to the control. Similarly, Cd contents were decreased in plants shoots by 15.41 and 14.33%, while in roots by 48.3 and 35.54%, when wheat straw and sugarcane biochar were added at 2% application rate respectively. Moreover, soil microbial biomass was significantly increased with the application of all biochar types and their applications rates. Finally, wheat straw biochar at 2% application rate can be considered as an effective approach for Cd stabilization in contaminated soils. |
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Keywords: | Bioavailability biochar cadmium microbial biomass spinach |
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