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Old 05-13-2008, 02:41 AM   #10 (permalink)
Richard
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Location: Vista, CA
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Default Re: Lawn fertilizer ok?

K-Mag and Sul-Po-Mag are synonyms. Weights of the products I have here are:
1/2 cup Ammonium Sulfate ~ 113 grams
1/2 cup Sul-Po-Mag ~ 193 grams
1/2 cup Triple 15 ~ 225 grams

In my view the Triple 15 is unnecessary, esp. considering the ideal ratios are 3 lbs of 32-1-48 per year. You could instead apply 1 cup per year of a soil conditioner containing micronutrients; e.g., 3-3-3 and obtain all the phosphorus and minors you need for a year.
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