background value of soil elements

例句：

1. 1.The background value of soil elements plays a crucial role in determining crop yields.
   土壤元素的背景值在决定作物产量方面起着至关重要的作用。
2. 2.The study found that the background value of soil elements can significantly affect plant growth.
   研究发现，土壤元素的背景值可以显著影响植物生长。
3. 3. The researcher analyzed the background value of soil elements to understand their impact on ecosystems.
   研究者分析了土壤元素的背景值，以了解它们对生态系统的影响。