Soil-sand culture experiment was conducted to study the effect of root iron plaque on Zn uptake by two geno-type rice insoil irrigated with waste-water.

• 采用土-石英砂联合培养的盆栽试验,研究两个不同基因型的水稻根表铁膜的形成情况及其对水稻吸收污灌土中的锌的影响。