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Improving the growth of pea plant by biochar-polyacrylamide association to cope with heavy metal stress under sewage water application in a greenhouse
Journal article   Open access   Peer reviewed

Improving the growth of pea plant by biochar-polyacrylamide association to cope with heavy metal stress under sewage water application in a greenhouse

Muhammad Naveed, Maryum Fatima, Zainab Naseem, Zulfiqar Ahmad, Abdel-Rhman Z. Gaafar, Mubashra Shabbir, Qurrat ul Ain Farooq, Mohamed S. Hodhod, Muhammad Imran Khan, Dua Shahid, …
Frontiers in environmental science, Vol.12, 1380867
2024
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Published3.04 MBDownloadView
CC BY V4.0 Open Access

Abstract

Environmental Sciences Environmental Sciences & Ecology Life Sciences & Biomedicine Science & Technology
Sewage water is extensively used for irrigation, serving as a valuable resource for plant growth to enhance agricultural productivity. However, this practice also results in a significant accumulation of heavy metals in the soil, posing potential environmental and health risks. A study was designed to evaluate the combined effect of amendments on heavy metal immobilization in soil and improved growth and yield in pea plants. For this, the soil for each treatment was mixed with biochar (BC) (1% w/w), polyacrylamide (PAM) (0.5% w/w), and also applied in combination. Pea plants were irrigated with tap water (TW), sewage water (SW), and tap + sewage water (TW + SW). A factorial design was applied to analyze data statistically. The combined application of the biochar and polymer showed a positive response by significantly enhancing the plant growth parameters (39%-84%), physiological attributes (67%-69%), and reducing Cd (56%) and Cr (65%) concentration in soil applied with SW and TW + SW. Moreover, treatment with a combined application of BC and PAM significantly reduced Cd concentrations by 43% in roots, 50% in shoots, and 91% in grains. Similarly, Cr concentrations were reduced by 51% in roots, 51% in shoots, and 94% in grains compared to the control. Overall, the study results indicate reduced bioaccumulation and health risks associated with potentially toxic elements (PTEs), supporting the application of the polymer and biochar for irrigating pea plants with TW + SW. Leveraging the combined benefits of polymer and biochar amendments appears to be an effective strategy to remediate PTE-contaminated soil, thereby increasing plant growth and yield.

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
3 Agriculture, Environment & Ecology
3.91 Contamination & Phytoremediation
3.91.172 Phytoremediation Mechanisms
Web Of Science research areas
Environmental Sciences
ESI research areas
Environment/Ecology
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