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GCSE Combined Science · key term
The conversion of ammonium compounds into nitrites and then nitrates by nitrifying bacteria in soil.
Used by Edexcel
Paper 1, Paper 2
Revise: The nitrogen cycle and nitrate availabilityAnother group, nitrifying bacteria, converts ammonium compounds into nitrites and then nitrates. This process is called nitrification. It makes nitrogen available in a form that plant roots can absorb.
When explaining crop rotation, link legumes to root-nodule bacteria, then explain how decomposition and nitrification make nitrogen available to the next crop.
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