Therefore, it is feasible to decrease nitrate level of some leafy vegetables that are grown on those soils high in nitrate by applying more phosphorus fertilizer.

• 为此，在一些硝酸盐含量较高的土壤上栽培蔬菜时，可以采取增施适量磷肥的方法，以降低叶菜的硝酸盐含量。