| 单词 | soil bacterium |
| 释义 | > as lemmassoil bacterium soil bacterium n. (usually plural) ΚΠ 1900 Knowledge July 161/2 In removing from the land his annual crop, the farmer carries off the greater part of the year's supply of potential humus whence the soil looks to be provided with Nitrates—by the action of the soil-bacteria—for the coming season. 1973 R. G. Krueger et al. Introd. Microbiol. xxx. 743/1 Two groups of aerobic soil bacteria are in large part responsible for the conversion of ammonia to nitrate. Representatives of the Nitrosomonas group oxidize ammonia to nitrite; those of the Nitrobacter group oxidize nitrite to nitrate. < as lemmas |
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