French scientists traced nitrogen fertilizer and found that roughly 15 percent of the nitrogen applied in 1982 was still sitting in the soil today.
法国科学家追踪了氮肥，他们发现1982年施用的氮肥有大概15%现在依旧留在土壤中。
| 单词 | trace fertilizer |
| 释义 |
trace fertilizer
原声例句
科学60秒-科学美国人 2021年11月合集 French scientists traced nitrogen fertilizer and found that roughly 15 percent of the nitrogen applied in 1982 was still sitting in the soil today. 法国科学家追踪了氮肥，他们发现1982年施用的氮肥有大概15%现在依旧留在土壤中。 |
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