利用水培试验研究了在不同营养环境条件下几种二价金属营养元素与镉的互作关系及其水稻吸收运转镉的影响。研究结果表明，培养液中全部营养元素供应水平变化，二价金属元素浓度变化均对水稻吸收镉产生显著影响。Cd浓度保持为2 μmol/L不变，随着全部必须元素浓度系数从0.25提高到2.0，水稻根系和茎叶Cd含量分别降低42.5%和64.5%。在没有其它二价阳离子干扰的情况下，Mg²⁺、Fe²⁺、Zn²⁺、Mn²⁺、Cu²⁺均强烈抑制水稻对镉的吸收，水稻根系镉含量降低至对照的15.4%~61.6%，茎叶镉含量降低至对照的202%~875%。在木村B培养液中增量供应Zn²⁺或Mn²⁺均大幅度促进镉在根系、茎叶和稻谷积累，其中增量供应Zn²⁺处理的水稻根、茎叶和稻谷镉含量分别比对照增加45.5%、177.4%、250.8%，而增量供应Mn²⁺处理的水稻根系、茎叶、稻谷镉含量分别比对照增加20.2%、117.4%、227.1%。在所有二价金属元素中，Cu²⁺对水稻吸收Cd²⁺的拮抗作用最强，而且铜镉拮抗关系受营养环境的影响较小。培养液中增量供应Cu2+导致水稻吸收镉大幅减少，根系、茎叶、稻谷镉含量分别比对照降低51.4%、45.2%、52.2%；培养液缺Cu²⁺则导致根系和茎叶镉含量分别比对照增加177%和114%。研究结果表明，在镉污染稻田适度施用铜肥、控制锌锰的输入、在水稻生长发育期保持较高土壤营养水平可能是控制水稻积累镉的营养调控方法。

Water culture was used to study the regulation effect of metal divalent micronutrient elements including Cu2+, Zn2+, Mn2+ and Fe2+ on Cd accumulation in rice plant in different nutritional environments. The results indicated that the supply level of whole necessary nutrient elements or single divalent micronutrient element was very important factor which regulated Cd accumulation in rice plant. As  the supply ratio of whole necessary nutrients in solutions contained with Cd2+at 2 μmol/L increased from 0.25 to 2.0, the Cd content of root and stemleaf of the rice plant  decreased by 42.5% and 64.5% respectively. As adding single divalent metal nutrient element into a designed basic solution with Cd2+ but no other divalent necessary metal nutrient elements, the Cd content of the roots treated with Ca2+,Mg2+,Fe2+,Zn2+,Mn2+or Cu2+ decreased to 15.4%〖KG-*3〗~61.6% comparing with CK, and the Cd content of the stemleaf except the adding Ca2+ treatment decreased to 202%〖KG-*3〗~875% comparing with CK Excess supply of Zn2+ or Mn2+ in Kimura solution B stimulated strongly Cd accumulation in root, stemleaf and grain The Cd content of root, stemleaf and grain increased by 455%, 1774%, 2508% respectively treated with excess supply of Zn2+andincreased by 202%, 1174%, 2271% treated with excess supply of Mn2+ Cu2+ strongly inhibited the adsorption of Cd2+ by rice plant Excess supply of Cu2+ led to a remarkable decrease of Cd content of root, stemleaf and grain by 514%,452%,522% respectively, whereas Cu2+ deficiency led to a remarkable increase of  Cd content of root, stemleaf by 177%,114% respectively The results implicated that appropriate supply of Cu fertilizer, controlling the input of Zn and Mn, maintaining a higher nutrients supply level of soil would be  possibly potential measures to control the Cd accumulation in rice plant