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【单选题】
通过哪种方式可以减少金属镉向农作物转移（ ）。A.
加入其他有机物，使其产生拮抗作用
B.
加入石灰调节土壤pH值，使镉成难溶的盐，减少转移
C.
使土壤中氧气充分，创造氧化条件
D.
加入硅酸使土壤pH降低，转化成难溶盐
E.
以上都不是
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