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#1
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calcium and acidity question
hello,
(zone 5) i use vinegar in certain acid requiring plants' water (hibiscus, azalea) to maintain (or get to) a pH 7... the vinegar / water's pH is ~ 5 or 6... have heard that certain elements are unAvailable in acidic environments for ex calcium and wonder whether i should supplement these with calcium containing fertilizer (even though the soil pH is only minimally acidic (since i am assuming that the tap water is the calcium source) thank you! |
#2
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calcium and acidity question
(zone 5)
i use vinegar in certain acid requiring plants' water (hibiscus, azalea) to maintain (or get to) a pH 7 vinegar is not recommended, as it will decompose in the soil & may produce compounds which are toxic to plants. I think you would do better to use Miracid. City tap water in most locations has enough calcium for most plants. The usual problem is too much. Iris, Central NY, Zone 5a, Sunset Zone 40 "If we see light at the end of the tunnel, It's the light of the oncoming train." Robert Lowell (1917-1977) |
#3
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calcium and acidity question
Xref: news7 rec.gardens:208493
On 10 Feb 2003 00:38:05 GMT, (Iris Cohen) wrote: I think you would do better to use Miracid. First you express concerns about salts then you recommend salts...DOH? Regards, tomj |
#4
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calcium and acidity question
First off Miracid is a fertilizer not a soil ammendment.
Almost all chemical fertilizers will be acid and the ones for crops will tell you how much lime per ton of fertilizer you need to apply to counteract the acidity. To keep your soil acid your best bet would be to work a little sulfur into the top inch or so and to keep the lawn lime away from your plantings. For faster results you would use aluminum sulfate. To provide sulfur and nitrogen you could use a fertilizer whose nitrogen componant came from ammonium sulfate. As for the calcium concerns in the original post you either learn to recognize deficiency or you do a soil test. |
#5
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calcium and acidity question
Iris Cohen wrote:
(zone 5) i use vinegar in certain acid requiring plants' water (hibiscus, azalea) to maintain (or get to) a pH 7 vinegar is not recommended, as it will decompose in the soil & may produce compounds which are toxic to plants. I think you would do better to use Miracid. City tap water in most locations has enough calcium for most plants. The usual problem is too much. Iris, Central NY, Zone 5a, Sunset Zone 40 "If we see light at the end of the tunnel, It's the light of the oncoming train." Robert Lowell (1917-1977) thanks for the reply... i tested the soil and the mirAcid (which i *have* been using) is doing nothing for the pH... sincerely Tanya |
#6
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calcium and acidity question
Beecrofter wrote:
First off Miracid is a fertilizer not a soil ammendment. Almost all chemical fertilizers will be acid and the ones for crops will tell you how much lime per ton of fertilizer you need to apply to counteract the acidity. To keep your soil acid your best bet would be to work a little sulfur into the top inch or so and to keep the lawn lime away from your plantings. For faster results you would use aluminum sulfate. To provide sulfur and nitrogen you could use a fertilizer whose nitrogen componant came from ammonium sulfate. As for the calcium concerns in the original post you either learn to recognize deficiency or you do a soil test. hi thank you for replying... i *do* use mirAcid on some (azaleas) and tested the soil which in all except for 1 (which i had given sulfur to for ?mites/root problems)) were neutral to basic (on the test capsules and a pool testing kit) with the pool kit however, the pH was 6.8 for the sulfurized one... i don't know how to test for calcium... thanks again sincerely Tanya |
#7
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calcium and acidity question
6...
have heard that certain elements are unAvailable in acidic environments for ex calcium and wonder whether i should supplement these with calcium containing fertilizer (even though the soil pH is only minimally acidic (since i am assuming that the tap water is the calcium source) thank you! Soluble calcium salts or hydroxides combine with acids to form insoluble or less soluble calcium salts, That's why you use gound limestone (calcium carbonate) to to raise the pH of acid soils or take TUMS (also calcium carbonate) to raise the pH of your tummy, As long as a soluble calcium salt is available it is looking fo an acid to neutralize. Fortunately acid loving plants have low calcium requirements. dill |
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