Joint utilization of Chinese milk vetch and lime materials mitigates soil cadmium risk and improves soil health in a double-cropping rice system

Chemosphere, Год журнала: 2024, Номер 363, С. 142784 - 142784

Опубликована: Июль 5, 2024

Язык: Английский

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Phosphorus-modified metakaolin as a soil amendment for immobilizing REEs and reducing their bioaccumulation

Applied Clay Science, Год журнала: 2024, Номер 251, С. 107304 - 107304

Опубликована: Фев. 22, 2024

Язык: Английский

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Layered Double Hydroxides Reduce the Availability of Cadmium and Lead in Soil and the Content of Cadmium and Lead in Grain

Soil and Sediment Contamination An International Journal, Год журнала: 2024, Номер unknown, С. 1 - 17

Опубликована: Апрель 9, 2024

Layered double hydroxides (LDHs) have excellent immobilization effects on heavy metals (HMs) in water and soil. For the first time Hunan province, effect of Ca-Al LDH (SR-02-02) Mg-Al (SR-02-03) for remediation Cd Pb was examined contaminated soils. With treatments SR-02-02 at 3000 kg/ha(L2–3), available 54.74% 20.85%; with SR-02-03 kg/ha(L3–3), 68.02% 26.70%, which showed that Cd, were gradually solidified into stable oxidizable residual state. Less HMs absorbed by rice as a result SR-02-03, concentration root, stem, husk, grain also significantly reduced. In particular, under treatment L2–3, content decreased 69.13% 72.67%, respectively; L3–3, 80.76% 100%, respectively. This because LDHs materials reacted to form Cd-OH, Pb-OH, CdAl-LDH, Ca/Mg-O-Pb etc. reduced availability HMs. conclusion, material is promising synergistic

Язык: Английский

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Impacts of biochar-based amendment on soil cadmium immobilization, rice grain cadmium accumulation and yield

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Май 20, 2024

Cadmium (Cd) contamination in soil is of severe health and environmental concern because its threat to human health, food safety, ecosystem sustainability. The situ stabilization Cd has been recognized as a potentially economical technique for the rehabilitation polluted with Cd. Biochar recently received much attention an eco-friendly recyclable amendment, which more beneficial plant growth, restoration contaminated soil. An experiment was performed field study efficiency three different types biochar: maize straw biochar, bamboo coconut shell activated carbon combination rape organic fertilizer (ROF), calcium magnesium phosphate (CMPF), fulvic acid (MFA), respectively, on immobilization, uptake by rice, rice yield. indicated that biochar-based amendments reduced bioavailability content 9.58%-27.06% 19.30%-71.77%, respectively. transformation exchangeable (Ex-Cd) carbonate bound (Ca-Cd), Fe-Mn oxide bond (Ox-Cd), residual (Re-Cd) accounted mitigation absorption enrichment rice. In addition, altered physicochemical properties promoted health. Biochar-based enhanced Fe Mn plaques 47.31%-160.34% 25.72%-73.09%, correlation analysis revealed leaf Fe/Mn primarily controlled pH, Eh, CEC, SOC, plaques, TP influenced This demonstrated had higher benefit were applicable ameliorating metal-contaminated agricultural

Язык: Английский

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Revealing the role of farmer-to-farmer extension in promoting sustainable agricultural practices in China: A case of rice-green manure rotation system diffusion

Journal of Cleaner Production, Год журнала: 2024, Номер unknown, С. 144365 - 144365

Опубликована: Дек. 1, 2024

Язык: Английский

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