General discussion regarding the techniques and methods used to successfully grow tomato plants in containers.
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#16 |
Tomatovillian™
Join Date: Jan 2007
Location: PNW
Posts: 4,743
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Greensand breaks down slowly, like granite dust, hard
rock phosphate, etc, more slowly than most organic matter. It has 2% potassium, for example, but the documentation on it says not to expect it to correct a potassium deficiency the same year that you apply it. It is mainly added for a long-term, slow release source of iron and other trace minerals. (The green color comes from glauconite, a potassium iron silicate, so it has a fair amount of silicon, too.) If amending a garden bed with it, a single application should be good for 5 years or more.
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#17 |
Tomatovillian™
Join Date: Feb 2011
Location: Austin, TX
Posts: 11
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Thanks Panhandler. I just might try that! I'll probably make my mix this weekend so it has a couple weeks to mellow.
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