Talk:Nitrification

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Needs cleanup, especially sectional structure. -- Paleorthid 01:52, 17 January 2007 (UTC)
Nitrification is included in the 2007 Wikipedia for Schools, or is a candidate for inclusion in future versions. Please maintain high quality standards, and make an extra effort to include free images, because non-free images cannot be used on the CDs.

[edit] Nitrogen cycle figure

I believe the image is from the site of the book; Campbell and Reece: Biology. You'll need a accescode for the site; www.campbellbiology.com

Is this statement meant to dispute the basis for the USEPA employee authorship and public domain status of the graphic in the article? So far, I'm not buying it: image looks to be PD. -- Paleorthid 20:36, 18 June 2006 (UTC)

I don't really understand what you're trying to say. I've checked my book, and the image is indeed in it. Don't believe me? Check it out for yourselve: Campbell & Reece, Biology. I have the seventh edition, and there the image appears on page 1197. And hey, I'm only trying to help.

The image appears on the EPA's website [1]. I don't see anything that suggests they lifted it anywhere else (or, if they did, they're doing so illicitly), so it seems PD to me. Could it be that Campbell and Reece have "borrowed" it? Cheers, --Plumbago 11:17, 20 June 2006 (UTC)


Does the picture of the nitrogen cycle really belong here? I think an example of denitrification mechanism would be more acceptable. —Preceding unsigned comment added by 74.71.103.70 (talk) 23:04, 5 May 2008 (UTC)

[edit] Sources of oxygen

Are we sure that the oxygen atom in the NO2 -> NO3 step comes from water? The Nitrifying_bacteria pages lists otherwise. 216.59.231.35 16:41, 10 November 2006 (UTC)