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本文作者对不同发育时期朝天委陵菜茎叶中的硝酸盐、亚硝酸盐以及维生素C的含量进行了测定，并就此对这种野菜的品质进行了评价。
The authors determined the contents of nitrate, nitrite and vitamin C in the stems and leaves of Potentilla anulus in different developmental stages, and evaluated their quality.