The contents of NO3(superscript +)-N and NH4(superscript +)-N increased significantly in earthworm inoculation, but not significantly in straw application.

• 接种蚯蚓显著提高了土壤NO3(上标-)-N和NH4(上标+)-N含量，秸秆处理土壤并不显著增加土壤中的NH4(上标+)-N含量。