Used for measuring NarG protein levels in soil samples, this ELISA kit enables researchers to assess microbial nitrate reductase activity, which is critical for understanding nitrogen cycling in terrestrial ecosystems. It supports environmental monitoring by providing insight into denitrifying bacterial activity, helping evaluate soil health, fertilizer efficiency, and potential nitrate pollution in agriculture and natural habitats. The kit is also useful in studies related to climate change, as microbial nitrogen transformations influence greenhouse gas emissions like nitrous oxide.