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Little River, TX | The man who sent me most of the good information was DR Keith A. Kelling, Emeritus Professor (retired professor) University of Wisconsin. [email protected]
If he does not respond try DR John B. Peters [email protected] or
DR Mike Rankin [email protected]
Consider also Soil Testing and Plant Analysis 3rd ed.-SSSA Book series, no3
Also in Better Crops http://www.ppi-ppic.org/ winter 1985 -1986
Unfortunately Better crops only goes back to 1997 in their web site. Possibly you could ask them to send you a copy.
The ratios I use are Alfalfa; N/S (12.4) 1/0.3 - 15.7/1;
N/K (1.3) 1.1 - 1.4/1; N/P (11.2) 7.3 - 11.5/1; P/Mg (1.4) 0.99 - 1.4/1; K/Ca (2.0) 2.1 - 2.9/1; K/Mg (12.2) 6.8 - 12.3/1
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help me understand plant tissue test
