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5 votes

Nitrogen cycle semantics; nitrification/nitrogen fixation

I went to do a bit of research on this, and think that you can get a satisfactory answer just from the relevant wikipedia articles. Here are some select quotes: Nitrogen fixation is a process by ...
kingledion's user avatar
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4 votes

Are there plants or bacteria that perform NO2 fixation and how relevant are they for improving local/regional air quality?

NO2 uptake by plants It has been observed that plants can lead to a reduction of atmospheric NO2 concentrations [Breuninger et al, 2013]. Currently, it is assumed that NO2 is taken up through stomata ...
daniel.heydebreck's user avatar
4 votes

Did the Haber-Bosch process enable the population explosion?

There are a number of factors that went/are going into the population explosion, food is only one vaccination and antibiotics are a big factor as well. within food fertilizer is again only one of ...
John's user avatar
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4 votes

What is the origin of the dominant atmospheric nitrogen content in Earth's atmosphere?

The reason Earth has so much nitrogen is because it is non reactive and builds up. The origin of the nitrogen is covered in previous answers. Also, Venus has as much nitrogen in its atmosphere as ...
Jack R. Woods's user avatar
4 votes
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How does nitrogen cycle work?

The first step in the nitrogen cycle is atmospheric nitrogen (N2) and water (H2O) lightning will make (N2) and (H2O) combine into ammonia (NH3) and nitrate (NO3) this will combine with water and fall ...
trond hansen's user avatar
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3 votes
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How much nitrogen would you need to replace all oxygen in a room of 1,000 cubic feet?

Your assumption about constant pressure can't actually exist while everything is closed. I am not using this assumption here because it is more correct and a bit easier: $$\pu{10 feet} = \pu{3.048 m}$$...
User123's user avatar
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3 votes

Why is carbon dioxide a more important greenhouse gas than nitrous oxide?

Two things to think about: Nitrous oxide is extremely scarce in the atmosphere, less than 1 ppm. Compare with carbon dioxide that (unfortunately) is now greater than 400 ppm. Also consider the ...
Gimelist's user avatar
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3 votes
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How to find molarity of a fertilizer?

You probably mean 50kgN/ha, which sounds like a plausible number for fertilizer application. I don't know what you are doing exactly, but you need to know how much surface area your soil sample ...
mart's user avatar
  • 1,244
2 votes

What is the origin of the dominant atmospheric nitrogen content in Earth's atmosphere?

Where all that nitrogen comes from. The two terrestrial planets plus one moon, in order of the amount of Nitrogen that they possess in their atmospheres: are Venus, Titan, finally Earth. Our planet is ...
Chris Yukna's user avatar
2 votes

Why is carbon dioxide a more important greenhouse gas than nitrous oxide?

There isn't enough nitrous oxide in the atmosphere to make a major contribution to global warming, which in some ways is a pity, because we'd all bee in a much jollier mood if there was (N2O is ...
Michael Walsby's user avatar
2 votes
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How to interpret correctly this chart about nitrogen oxide?

A person answered to me on a dedicated Facebook group. He suggests that the labels are about areas, not lines, so the grey area (emissions in Sweden), is only the visible area, it does not continue ...
Michele Dorigatti's user avatar
2 votes
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Rain Water vs Sprinkler Irrigation

I think what you mean by thermo-electric nitrogen fixation is the nitric oxides created by lightning discharges. This is absorbed by the raindrops as they form and as they fall to earth, and helps to ...
Michael Walsby's user avatar
2 votes
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Does nitrogen fixation plants consume nutrients from soil

I'm not familiar with the plants you mention, unless they are the ones whose leaves rapidly move away from you when touched. I saw some in Malaya. However, the plants well known for fixing nitrogen ...
Michael Walsby's user avatar
2 votes

Why is carbon dioxide a more important greenhouse gas than nitrous oxide?

Specifically regarding the table in your question, the last column compares the emissions not by mass but by CO2-Eqivalent mass. That means that the number already takes into account that the global ...
uUnwY's user avatar
  • 268
2 votes

Did the Haber-Bosch process enable the population explosion?

There are several aspects to be considered in this apparent difference. First, your quote from Wikipedia describes the change in productivity but does not account for other factors that have lead to ...
haresfur's user avatar
  • 4,419
1 vote

How big of an issue are Nitrogen and phosphorus flows to the biosphere and oceans?

Eutrophication is an issue...namely because of red tides, algal blooms and anoxic water.... However practical solutions. However influxes of fertilizer is often dealt with. For decades scientists have ...
LazyReader's user avatar
1 vote

Feedback loops between soil chemistry and plant growth

I don't think you can define a direct relationship between soil temperature and organic carbon - at least in a general sense. As temperature increases so does soil microbial activity, which will tend ...
haresfur's user avatar
  • 4,419
1 vote

Feedback loops between soil chemistry and plant growth

You're on the right track, though the positive and negative aspect of feedback loops is more about dynamics of the overall system rather than just the increase or decrease of components in the ...
cr0's user avatar
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