So, the effects of elevated atmospheric CO2 on the
mineral concentration of milled rice grains might be mainly
attributed to three reasons: (1) Soil bio-available mineral
supply might not meet crop demand under elevated CO2.
Because CO2-led enhancement of crop growth (Kimball
et al. 2002; Jablonski et al. 2002) might lead to increment
of mineral uptake, the supply of bio-available minerals in the
soil might not meet crop demand.