甲苯对土壤反硝化酶活性有明显的抑制作用，且土壤肥力水平越高，抑制幅度越大。
Toluene significantly inhibited DEA, and the inhibition grew with the increase of soil fertility.
细菌反硝化作用以及催化反硝化的各类酶的基本特性已被阐明。
Bacteria denitrification and the main characteristics of enzymes that catalyze the process were clear.
应用废水污泥不会影响硝化还原酶活性，但是BSW在根际土壤明显增加硝酸盐的含量。
The application of wastewater sludge did not affect the nitrate reductase activity but BSW significantly increased the content of nitrate in the rhizosphere soil.
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