Drought stress changed the correlation of NH4(superscript +)-N and NO3(superscript -)-N with protease, urease activity, ammonifying bacteria and nitrifying bacteria.

• 干旱胁迫改变了玉米根际NH4(上标+)-N和NO(上标-)-N与蛋白酶、脉酶、氮化细菌和硝化细菌的相关性。