N Cylcle: Match the steps of the Nitrogen Cycle you would find beneficial based on theprofessions/goals listed belowFarmer wishes to increase vegetable[Choose]production[Choose ]Farmer wishes to decrease runoff of nitratecontaining fertilizers in irrigation waterdenitrificationnitrogen fixation and nitrificationsewage plant operator wishing to decreasefrequeny of HAB's from treated sewagedumped into Sacramento River[ Choose ]water quality consultant working with publicwho are using many nitrate containingfertilizers; consultant wishes to increasewater quality and clarity in Lake Tahoe,[ Choose ]

Denitrification is the conversion of soil nitrate to the nitrogen gases N2O and N2 by bacteria that consumes nitrate as a terminal electron acceptor when oxygen is not available. Denitrification occurs when the available carbon, nitrate, and low oxygen concentrations occur simultaneously. Nitrification is a two-step process. Nitrosomonas bacteria convert ammonia and ammonium to nitrite (NO2). Nitrite is highly toxic to fish and makes the water quality poor. It is then converted to nitrate (NO3) by Nitrobacter bacteria.Farmer wishes to increase vegetable production [Nitrogen fixation and nitrification] Farmer wishes to decrease runoff of nitrate-containing fertilizers in irrigation water. [Denitrification] Sewage plant operator wishing to decrease the frequency of HAB's from treated sewage dumped into Sacramento river. [Denitrification] Denitrification is by municipal wastewater to remove nitrogen from sewage and wastewater. Water quality consultant working with public who are using many nitrate-containing fertilizers; consultant wishes to increase water quality and clarity in lake Tahoe. [Denitrification] For the prevention of groundwater pollution with nitrate that is resulted from excessive agricultural or residential fertilizer usage.