采用盆栽试验，研究了在重金属镉污染（5 mg/kg）下，2种锌源（硫酸锌、纳米氧化锌）与3种有机物料（蚕砂、菜籽饼、豆饼）配施对水稻吸收镉、锌及对土壤镉形态变化的影响。结果表明，有机物料与锌配施可以提高土壤pH值、阳离子交换量（CEC），降低土壤DTPA提取态镉含量，增加DTPA提取态锌含量，改变镉赋存形态。与对照相比，配施处理均能降低糙米镉含量；当有机物料种类相同时，纳米氧化锌降镉效果优于硫酸锌，其中纳米氧化锌+菜籽饼处理使糙米镉含量降低至0.04 mg/kg，低于国家标准镉的安全限值。相关性分析表明，水稻糙米镉含量与锌含量呈极显著正相关，土壤DTPA提取态镉含量与水稻各器官中的锌含量呈负相关。有机物料与锌配施通过改变土壤DTPA提取态镉和锌含量、水稻各器官锌含量及镉形态影响水稻吸收积累镉的能力。

On account of Cd pollution （5 mg/kg）, a pot experiment was conducted to study the effects of combined application of two zinc sources （ZnSO₄, ZnO-NPs） and three organic components （silkworm sand, rapeseed cake, bean cake） on the adsorption of Cd and Zn by rice, and Cd speciation in the soil. The results showed that the combined application of organic components and zinc could increase soil pH and CEC （cation exchange capacity） values, reduce soil DTPA-extracted cadmium content, increase DTPA-extracted zinc content, and change cadmium speciation. Compared with the control, the combined treatments could reduce Cd concentration in the brown rice. While employing the same organic component, the combined treatment of ZnO-NPs obviously surpassed that of ZnSO₄. The treatment of ZnO-NPs + rapeseed cake could reduce Cd concentration to 0.04 mg/kg in brown rice, lower than the national standard. Correlation analysis showed that the cadmium content in brown rice was significantly positively correlated with the zinc content in brown rice, and the soil DTPA-extracted cadmium content was negatively correlated with the zinc content in various organs of rice. Combined application of organic components and zinc sources could affect the ability of rice to absorb and accumulate Cd by altering Cd and Zn availability in soil, Zn concentration in various organs of rice and Cd speciation.