flores/yet-another-nutrient-calculator — pull request #29 by Webunity (2012-11-28 10:52:39+00:00)
Title: Added DTPA Fe 7%

Also added solubility for this product.

Only thing i am not sure of is the weight of a tsp.
This is for now copied from 10% DTPA Fe.
We need to get the proper weight for this!