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K def & Corn Varaity
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mhagny
Posted 6/5/2007 21:53 (#158815 - in reply to #158685)
Subject: Re: K def & Corn Variety


John,

Before you spend too much money on this nutritional philosophy, you might want to check out what science has had to say about Albrecht's theories on 'ideal' ratios of cations:

http://www.grdc.com.au/growers/res_upd/north/n05a/menzies.htm

and this one:

http://soil.scijournals.org/cgi/content/abstract/71/2/259
(you gotta pay for the article, but how much are you spending on amendments to adjust ratios, etc? -- it is fabulous reading.)

All essential nutrients must be supplied to the crop (and soil biology) in sufficiency. Beyond that, not much matters in the way of ratios, etc. There is some competition for uptake sites, etc., but there is a very large range of nutrient ratios at which crops grow to their full potential. Plant nutritional science seems pretty clear on this. You could spend days just reading what's on the internet refuting the ratio theory. George Rehm in MN, John Grove at U.Ky, and many many more very respectable scientists have found absolutely nothing in their studies to support cation ratio theory.

respectfully,

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