Nitrogen Cycle Flashcards
ammonification
production of ammonia from organic nitrogen-containing compounds
Nitrification
oxidation of ammonium ions to NITRITE ions
Oxidation of NITRITE ions to NITRATE ions
Which plants have nitrogen fixing bacteria, where are they and what is this and example of?
Legumes, in the root nodules, example of mutualism (bacteria provide nitrates to plant, plant provides sugar)
Denitrification
Soils waterlogged and oxygen concentration decreases meaning less aerobic nitrifying and nitrogen fixing bacteria and more anaerobic denitrifying bacteria
X
Leeching of nitrates causes eutophication
Leaching
loss of water-soluble plant nutrients from the soil, due to rain and irrigation (applying controlled amounts of water to plants and needed intervals)
Correct sequence of changing ions
NH4 +, NO2 -, NO3-