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| Hello everyone. Would you give your opinions, please? The gypsum available for making gritty mix is "gypsum plus ast", which seems to mean this gypsum has added calcium and added sulfur. Would this be a problem? Thank you. |
Follow-Up Postings:
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| Gypsum IS calcium and sulfur, plus oxygen (CaSO4). The AST part means 'Advanced Soil Technology'. I've never used it, so I can't say how well it will perform. The coating might swell up a lot in soils (see link below), but it's only 2% of the product. Al Calcium Sulfate-Dihydrate (CaSO -2H 0) .......................................... 92% ALSO CONTAINS NONPLANT FOOD INGREDIENTS: ACTIVE INGREDIENTS INERT INGREDIENTS |
Here is a link that might be useful: Read more about the polyacrylamide coating
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- Posted by merrybookwyrm 7/8 dfw (My Page) on Thu, Jul 19, 12 at 20:08
| Thank you. I have -no- idea what I'm doing... hoping I don't kill the tangerine seedlings I've been nursing along. |
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| You can be sure we're all hoping right along with you. ;-) Good Luck! Al |
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