The study with soil incubation test under constant temperature and humidity showed that compared with DCD,DL-1 could significantly inhibit the oxidation of soil ammonium.

• 以国内外应用较为广泛的硝化抑制剂双氰胺(DCD)为参比对象；采用室内培养方法；对新型吡唑类化合物DL-1的硝化抑制效应进行初步探讨.