farmland soil
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2022 ◽  
Vol 807 ◽  
pp. 150746
Author(s):  
Qinglin Li ◽  
Tianxiao Li ◽  
Dong Liu ◽  
Qiang Fu ◽  
Renjie Hou ◽  
...  

Geoderma ◽  
2022 ◽  
Vol 405 ◽  
pp. 115510
Author(s):  
Yutian Zuo ◽  
Fanxiang Meng ◽  
Tianxiao Li ◽  
Qiang Fu ◽  
Dong Liu ◽  
...  
Keyword(s):  

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Yunqiang Wang ◽  
Zhengkang Zou ◽  
Xinliang Su ◽  
Fengting Wan ◽  
Ying Zhou ◽  
...  

Abstract Background Due to the severe cadmium (Cd) pollution of farmland soil, effective measures need to be taken to reduce the Cd content in agricultural products. In this study, we added α-Fe2O3 nanoparticles (NPs) and biochar into Cd-contaminated soil to investigate physiological responses of muskmelon in the whole life cycle. Results The results showed that Cd caused adverse impacts on muskmelon (Cucumis melo) plants. For instance, the chlorophyll of muskmelon leaves in the Cd alone treatment was reduced by 8.07–32.34% in the four periods, relative to the control. The treatments with single amendment, α-Fe2O3 NPs or 1% biochar or 5% biochar, significantly reduced the soil available Cd content, but the co-exposure treatments (α-Fe2O3 NPs and biochar) had no impact on the soil available Cd content. All treatments could reduce the Cd content by 47.64–74.60% and increase the Fe content by 15.15–95.27% in fruits as compared to the Cd alone treatment. The KEGG enrichment results of different genes in different treatments indicated that single treatments could regulate genes related to anthocyanin biosynthesis, glutathione metabolism and MAPK signal transduction pathways to reduce the Cd toxicity. Conclusions Overall the combination of biochar and α-Fe2O3 NPs can alleviate Cd toxicity in muskmelon. The present study could provide new insights into Cd remediation in soil using α-Fe2O3 NPs and biochar as amendments. Graphic Abstract


2021 ◽  
Vol 225 ◽  
pp. 112724
Author(s):  
Xie Mengdi ◽  
Chen Wenqing ◽  
Dai Haibo ◽  
Wang Xiaoqing ◽  
Yang Li ◽  
...  

2021 ◽  
Vol 20 (1) ◽  
pp. 25-55
Author(s):  
Musa Saheed Ibrahim ◽  
Geoffrey Obinna Anoliefo ◽  
Ohanmu Edos. O

This study investigated the growth and phytoremediative response of Eleusine indica in a typical farmland soil that had been exposed to organochlorine pesticides. Different soil treatments were obtained by mixing pesticide polluted soil (P) with control soil (C) in ratios, 1P:99C, 5P:95C, 50P:50C, 25P:75C, 75P:25C, 100P and 100C. Three-leaf tillers of the test plant were sown in all the treatments for 3 months. The results revealed that there were no significant differences in all plant morphological parameters measured between plants in P impacted soils and C-soil. All the pH values were acidic, although an increase in pH and decrease in conductivity was observed with the introduction of the test plant. There was reduction in total pesticide residual (TPR) contents in the soil as a result of the plant activities. Significant reduction in q – BHC, α – chlordane and ϒ – chlordane was observed in the P1:C99 soil mix; a 90% remediation efficiency (1.663 mg kg-1 ) was registered in the all treatments. This study thus presents E. indica as a potential concentration-dependent phytoremediator of pesticide, with no significant morphological changes.


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