Both fertilizers and manure release nitrogen into natural systems such as rivers, upsetting the natural balance.
化肥和粪肥都释放氮到自然生态系统,如河流,从而破坏自然的平衡。
2
What you can do is try to maintain nitrogenbalance.
你能做的就是尽量保持氮平衡。
3
Dietary fiber does not have significant effect on protein metabolism and nitrogenbalance, but some fiber can decrease the absorption and availability of lipids and carbohydrates.