The soil selenium content, form, availability, healthy effects and adjust measures were reviewed in this paper.
本文拟就土壤中硒的含量、形态、有效性影响因素、硒的保健作用和调节措施等方面作一综述。
According to the classification definition standard of soil selenium amount put forward by Li Jiaxi, it is confirmed that there exists selenium-rich soil in Zhejiang.
依据李家熙的土壤硒含量的分类定义标准，可以确认浙江存在富硒土壤。
Selenium can be low if the food is grown in selenium deficient soil, so a Brazil nut a day provides a useful insurance policy.
在缺乏硒的土壤中长的食物含硒量就会低，而每天一颗巴西坚果，为摄取硒提供了有益的保障。
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