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fertilizers are not identical
August 7, 2008 by Anonymous, 1 year 13 weeks ago
Comment id: 31426
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"mineral nutrients from natural or artificial fertilisers are chemically identical"
That is a misleading statement. Putting synthetic nitrogen fertilizer on a field is not the same as adding manure. Manure has a whole range of minerals in it, major and trace. You can't replicate that with synthetic fertilizer.