Nitrogen in the Environment: Nitrogen Cycle

Nitrogen in the Environment: Nitrogen Cycle nitrogen cycle Nitrogen fixation generally refers to the process in which atmospheric nitrogen is converted into ammonia Conversion of atmospheric N to ammonia product life cycle nitrogen lossgain and methane release Benthic nitrogen fixation While biogenic reworking of sediment is known to enhance the Nitrogen Cycle 287

product life cycle In an aerobic medium, organic nitrogen matter converts into ammonia salts which in turn convert into nitrites and then into nitrates by

calvin cycle Nitrogen is taken up by plant roots and combined into organic substances in the plant, such as enzymes, proteins and chlorophyll Chlorophyll Nitrogen has a crucial role to play in primary productivity, and indeed is the plant nutrient required in greatest quantity In the biosphere it undergoes