How can the findings of the nitrogen use efficiency

Solution

• Option C is correct because the study's findings about NUE variations can guide the development of new rice varieties that are more efficient in nitrogen use, thereby reducing fertilizer costs and environmental pollution. • Option A is incorrect because the study actually shows significant variation in NUE, suggesting that a uniform approach to nitrogen use is not applicable. • Option B is incorrect as the study indicates that focusing solely on yield is insufficient; improving NUE is also crucial. • Option D is incorrect because the study found that higher NUE does not always correspond to lower yields, and higher NUE varieties are not necessarily less desirable. • Option E is incorrect because the study highlights the relevance of NUE in reducing fertilizer costs and mitigating environmental impacts.