Cd accumulation in rice grain is a world-wide problem because rice is the staple food of over half the worlds population. Over the past few decades, many authors have reported that Si-rich substances can mitigate the negative influence of Cd on the growth of various plants, including rice. The main aim of this research was to summarize the data from literature and the investigation to understand the mechanisms of the Si effect on the migration and transportation of Cd in the paddy soil-rice system. This system was separated into two parts the soil and the plant and each part was studied...