Asked in Elements and Compounds
Elements and Compounds
Is nitrate reduction beneficial to farmers?
Answer

Wiki User
November 20, 2008 6:50AM
Nitrate reduction is not good for farmers. Nitrate reduction is the substitution of nitrates for oxygen as a terminal electron acceptor for bacteria. This means the nitrate (NO3-) then becomes nitrite (NO2-), and if the process stays anaerobic and continues, then the nitrite is reduced to nitrogen gas (N2) which then escapes from the soil.
Many plants thrive on nitrates, however if they are reduced to nitrogen gas, then the available nitrogen is reduced and the plants don't do as well. This is why a good deal of fertilizers that farmers put on their fields are chock-full of nitrates.
Many plants thrive on nitrates, however if they are reduced to nitrogen gas, then the available nitrogen is reduced and the plants don't do as well. This is why a good deal of fertilizers that farmers put on their fields are chock-full of nitrates.
Related Questions
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Would nitrate reduction occur more often in the presence or absence of a molecular oxygen?

Nitrate reduction occurs in some facultative anarobes, nitrate
is used as a terminal electron acceptor under (anaerobic)
conditions, this carries off nitrate respiration. So in other words
nitrate reduction does not happen in the precense of oxygen because
then oxygen would be used instead of nitrogen as an electron
acceptor.
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Is potassium nitrate a safe food preservative?

According to Wikipedia, in the process of food preservation,
potassium nitrate is a common ingredient of salted meat, but there
are theories indicating that using nitrates in meats can cause
cancer. As a preservative it can be known as E252.
I am unsure about potassium nitrate, but sodium nitrate has been
marked as something we should avoid, but it actually has beneficial
properties despite what some "studies" say, it in moderate does is
nothing to fear, but instead may be beneficial. Potassium nitrate
is still a mystery to me though, i plan to look into though
eventually.
Asked in Elements and Compounds
What is the nitrate broth?

Cultures are grown in beef extract medium containing potassium
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Answer found in Benson's Microbiological Applications:
Laboratory Manual in General Microbiology Eleventh Edition by
Alfred E. Brown on page 258.
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