Nitrification involves the microbial transformation of____________________?
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Answer: A. NH nitrogen the NO3 nitrogen in soil
Explanation
Nitrification is the biological oxidation of ammonium compounds into nitrates in soil. Soil bacteria sequentially convert ammonium nitrogen into nitrites and then nitrates. This microbial process is a crucial step in the global biogeochemical nitrogen cycle. Chemoautotrophic bacteria such as Nitrosomonas and Nitrobacter drive nitrification reactions. Ammonium nitrogen is bound to soil particles, while nitrates move freely in soil water. Soil temperature and moisture levels heavily influence the speed of microbial nitrification.
Farmers manage nitrification to ensure crops receive nitrogen in forms they can readily absorb. Excess nitrate production can lead to leaching losses and environmental water pollution. Nitrification inhibitors are sometimes applied to agricultural soils to reduce nitrogen loss. NH nitrogen the NO3 nitrogen in soil accurately describes the core conversion process. NO2 to NO3 nitrogen in soil covers only the final step of the overall sequence. None of the above is incorrect because the primary transformation is accurately stated.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
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