Experimental study demonstrates that woody peat and humate alter iron plaque dynamics to shift cadmium and arsenic uptake in rice, highlighting soil amendment strategies for safer crops.
) decreased, accompanied by reduced Cd retention but increased As sequestration in iron plaque. The distinct variations in the availability of Cd/As and their differential partitioning in iron plaque jointly contributed to the extent of Cd/As accumulation in the rice grains. This study provides novel insights into how woody peat and its humate regulate Cd/As dynamics in the ricesoil system through Fe fractionation and iron plaque regulation.
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Li et al. (2026) studied this question.
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