DCD also could postpone the acme of NO3--N dynamics, which made soil preserve more NH4+-N in a longer period.Adding DCD could increase the utility efficiency of AB, and decrease its nitrogen losses.

• DCD同时能推迟NO3--N含量达到高峰,使土壤NH4+-N含量在较长时间保持相对较高水平,提高氮肥利用率,减少氮素流失。