The consistence of 0.5%, 0.3%, 0.3%is optimal respectively when the DCD is added in order to both hold up the loss and accelerate the transformation of NH4-N in Purple, Yellow Soil and Aquent.

• 在紫色土、潮土和黄壤上添加DCD抑制NH4-N损失和转化的效果分别以0.；5%25、0