International Journal for Asian Contemporary Research, 5(2): 48-53
Influence of Foliar Application of Different Types of Nano Silica on Heavy Metal Accumulation in Rice Plants
08 August, 2025 || Accepted: 29 August, 2025 || Published: 12 September, 2025
A B S T R A C T
Silicon (Si) is a beneficial element for rice, enhancing plant resistance to toxic metals. Nanofertilizers, due to their smaller particle size and unique characteristics, may offer advantages over traditional fertilizers in reducing heavy metal accumulation in rice tissues. However, the effects of nano-silicon (nano-Si) on heavy metal uptake in rice remain under investigation. In this study, a greenhouse pot culture experiment was conducted to evaluate the effects of foliar application of organic and inorganic nano-Si on rice growth, yield, and heavy metal accumulation in four widely grown rice cultivars (BRRI dhan 28, BRRI dhan 29, BRRI dhan 33, and BRRI dhan 34) grown in soil contaminated with cadmium (Cd), lead (Pb), copper (Cu), and zinc (Zn). The results showed that nano-Si application positively impacted rice biomass and yield, with hybrid cultivars showing better growth compared to traditional varieties. The average spike weight increased by 24.8% and 25.3% with organic and inorganic nano-Si, respectively. Nano-Si significantly reduced the concentrations of heavy metals, particularly Cd, in both roots and grains (P < 0.01), with inorganic nano-Si exhibiting stronger effects than organic nano-Si. Additionally, nano-Si decreased the bioaccumulation and translocation of heavy metals from roots to shoots and from shoots to grains. The average Cd concentration in grains decreased by 23.8% and 27.1% with organic and inorganic nano-Si, respectively. This study demonstrates that nano-Si has a positive effect on rice growth and yields in metal-contaminated soils and can potentially reduce the accumulation of toxic heavy metals, particularly Cd, in rice grains.
Keywords: Rice, Nano particles, Silicon, Heavy metals and Sustainable Agriculture.
Copyright information: Copyright © 2025 Author(s) retain the copyright of this article. This work is licensed under a Creative Commons Attribution 4.0 International License
To cite this article: Rahman, T.M.R., Islam, M.M., Sharkar, M.N., Hossain, M.S., Salahin,M. and Khan, M.T.A (2025). Influence of Foliar Application of Different Types of Nano Silica on Heavy Metal Accumulation in Rice Plants International Journal for Asian Contemporary Research, 5(2): 47-53.
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