Talk:Bone meal

more explicit?

from the article: "Bone meal once was often used as a dietary calcium supplement."; for farm animals, right? i have to believe so, maybe we could be more explicit & say "Bone meal once was often used as a dietary calcium supplement for farm animals.". i won't make this change because i don't know for sure if bonemeal is only fed to farm animals. lakitu 14:01, 14 July 2006 (UTC)

Yes, bone meal really was used as a human calcium supplement. See National Osteoporosis Foundation - Purity Dbfirs (talk) 17:47, 26 November 2007 (UTC)

needs some useful information. like available phosphate 23%-30%? or 2%-4% nitrogen —Preceding unsigned comment added by 72.161.45.95 (talk) 00:20, 24 February 2008 (UTC)

Needs inline citations

There are sources listed at the end, but it would be nice if there were citations in the text for particular statements. Oswald Glinkmeyer (talk) 21:38, 14 July 2009 (UTC)

Should this topic be merged with meat and bone meal?

We are growers of organic tomatoes. From our point of view, these are two totally separate products, and should have separate wiki entries. Many other organic grower users of the wiki would also get better use from two separate entries --Bigcanuknaz (talk) 13:39, 27 March 2010 (UTC)

Yeah, let's just put each of them in the See Also.

I concur these are entirely separate products used for very different purposes.Unless anyone objects I am removing the tag.

67.142.172.26 (talk) 03:00, 3 July 2010 (UTC)

Leather meal...

Why was there a link to leather meal? The articled either does not exist or was deleted. --173.9.201.97 (talk) 18:43, 24 August 2011 (UTC)

Blossom end rot.

Someone tried to get this right, but didn't finish the job. Blossom end rot is not caused by a lack of calcium in the soil or the plant. It is caused by a misallocation of calcium within the plant. When transpiration is high, water is lost through the leaves, causing water to be pulled out of the rest of the plant and into the leaves. When this happens, calcium ions go with the water, leaving the fruit. It's this movement of calcium ions from fruit to leaves that causes the fruit tissue to get soft. So calcium added to the soil does not prevent B.E.R. MarkinBoston (talk) 23:23, 11 November 2012 (UTC)

NPOV

This article has a strangely negative tone, as though someone is campaigning against the use of bonemeal as fertilizer. I've no idea why anybody would find bonemeal objectionable unless there is some sort of animal rights / vegetarian argument that I'm unaware of. --Ef80 (talk) 21:22, 8 May 2013 (UTC)

Agreed. I've chopped a bunch of the later paragraphs, which appear to be supported only a a page about human health. In other words not supported at all. Some of the information could perhaps be included in a reworded form, but it would need supporting citations which I can't find. Lithopsian (talk) 13:23, 26 September 2013 (UTC)

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Removed section

Mycorrhiza

Organic fertilizers usually require the use of a variety of fungi in the soil to make the nutrients in the fertilizer bioavailable to the plant. For plants needing phosphorus, the fungi mycorrhiza penetrate the roots and break down the compounds containing the phosphorus for easier absorption and utilization, and in turn the plants supply the mycorrhizae with amino acids and sugars.

-- ends --

Tagged {{Off topic|date=March 2016}} - and I agree. Might be relevant somewhere else though.

All the best: Rich Farmbrough (the apparently calm and reasonable) 12:28, 24 May 2020 (UTC).

misleading information

"Bone meal once was often used as a human dietary calcium supplement. Research in the 1980s found that many bone meal preparations were contaminated with lead and other toxic metals; for this reason, bone meal is no longer recommended as a calcium source."
Bone meal is still used as a human dietary calcium supplement. There are are plenty of products on the market for just this reason. 2601:CD:C480:1BB0:5550:6B30:B497:402A (talk) 17:10, 21 January 2022 (UTC)