Effects of different silicon (Si) treatments on Si concentrations in rice organs (SiO₂%).

<p>Si₀: no Si fertilizer; Si₁: slag fertilizer applied at a rate of 187 mg plant-available Si per kg soil; Si₂: slag fertilizer applied at a rate of 560 mg plant-available Si per kg soil; Si₃: slag fertilizer applied at a rate of 935 mg plant-available Si per kg soil; H: slag fertilizer H, Q: slag fertilizer Q; Data are means ± SD of three replicates; mean values followed by different letters (a, b, c) are significantly different (<i>P</i>≤0.05).