请帮忙翻译一段话,要通顺的,不用改的.谢谢

仔细人工翻译
N (Nitrogen) is a necessary nutrient for plants,but also a major contributor to environmental pollution.How to accurately simulate the circulation of N in the soil has become a focus of attention among scientists.Through this experiment,we can find out the concentration of N in the soil at different stages; understand how various forms of N in the soil change with time; accurately assess the economic,ecological and environmental impact of the application of nitrous fertilizers,facilitate decision-making in the rational,sustainable and scientific application of nitrous fertilizers; and prevent economic and environmental impacts due to the loss of nitrous fertilizers.