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Silicon (Si) is assimilated from soil by rice and is deposited in shoots in inter- and intracellularly, resulting in the formation of silicaceous structures, namely phytoliths. During the precipitation of Si, elements present in xylem/phloem sap, including phosphorus (P), can also be occluded in the phytolith. We examined the release of Si and P from the rice straw derived phytolith to elaborate the...