Used for the quantitative detection of nitrate reductase activity in soil samples, this ELISA research kit enables researchers to assess microbial activity related to the nitrogen cycle. It is particularly useful in environmental and agricultural studies where monitoring soil health and nitrogen transformation processes is essential. The kit supports precise measurement of enzyme activity, helping evaluate the impact of fertilizers, crop rotation, and soil management practices. It is widely applied in research on sustainable agriculture, nutrient cycling, and pollution assessment.