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#16
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"Robert" wrote in message ... : : If you want real lime, try a builder's merchant, especially one who : sells lime mortars. Builder's lime is a different thing altogether and is inactive on the garden. That is quite incorrect. Builders' lime is Calcium Hydroxide, known as "slaked lime" It is an alkaline material which is very frequently used to treat acid soil. [snip] Franz |
#17
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"Franz Heymann" wrote in message ... : : "Robert" wrote in message : ... : : : : : : If you want real lime, try a builder's merchant, especially one : who : : sells lime mortars. : : Builder's lime is a different thing altogether and is inactive on : the : garden. : : That is quite incorrect. Builders' lime is Calcium Hydroxide, known : as "slaked lime" It is an alkaline material which is very frequently : used to treat acid soil. No you're wrong Franz, builder's lime is no use to the garden whatsoever |
#18
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"Franz Heymann" wrote in message ... : : "Robert" wrote in message : ... : : : : : : If you want real lime, try a builder's merchant, especially one : who : : sells lime mortars. : : Builder's lime is a different thing altogether and is inactive on : the : garden. : : That is quite incorrect. Builders' lime is Calcium Hydroxide, known : as "slaked lime" It is an alkaline material which is very frequently : used to treat acid soil. : : [snip] : : Franz ps Slaked lime is not builder's lime, slaked lime is gardeners' lime. Builders' lime is hydrated lime. So we are as one even though we didn't know it lol. Merry Christmas Franz : : |
#19
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On Sat, 11 Dec 2004 13:41:30 -0000, "Robert"
wrote: : : If you want real lime, try a builder's merchant, especially one who : sells lime mortars. Builder's lime is a different thing altogether and is inactive on the garden. I am surprised that so many people do not use lime. It is essential where I garden in Plymouth as the soil will get 'sour' after too long without it as we are acid anyway. It is also useful to put in the planting hole to help prevent club root although the experts as usual dispel this notion. What are you talking about? Try this from the horses mouth. http://www.rmc.co.uk/crossproductpdf...atedlime_r.pdf Also any number of other lime producers, Castle Cement, Buxton Lime Industries etc................ We just use whatever hydrated lime our local builders' merchants stock. Crushed limestone is fine if you can get small quantities but acts more slowly and lasts longer. ================================================= Rod Weed my email address to reply. http://website.lineone.net/~rodcraddock/index.html |
#20
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On Sat, 11 Dec 2004 13:41:30 -0000, "Robert"
wrote: It is also useful to put in the planting hole to help prevent club root although the experts as usual dispel this notion. Which experts? When our local Hort College was growing brassicas commercially they kept the pH of their brassica field around 9 for that reason. ================================================= Rod Weed my email address to reply. http://website.lineone.net/~rodcraddock/index.html |
#21
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Robert wrote:
"Franz Heymann" wrote in message ... "Robert" wrote in message ... If you want real lime, try a builder's merchant, especially one who sells lime mortars. Builder's lime is a different thing altogether and is inactive on the garden. That is quite incorrect. Builders' lime is Calcium Hydroxide, known as "slaked lime" It is an alkaline material which is very frequently used to treat acid soil. [snip] Franz ps Slaked lime is not builder's lime, slaked lime is gardeners' lime. Builders' lime is hydrated lime. So we are as one even though we didn't know it lol. Merry Christmas Franz Surely this can't be right? Calcium hydroxide is calcium hydroxide, whether you call it hydrated lime or slaked lime. You can't use gardeners' lime to make mortar, but I thought that was just because the builder's version was "sharper", by virtue of being fresher and so not as thoroughly slaked. But you can certainly use builders' lime in the garden, though it washes out, and isn't safe for the skin by any means (it kills slugs): I'd use ground chalk or limestone. Have I been labouring under a serious misapprehension? Mike. |
#22
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On 11/12/04 15:44, in article , "Franz
Heymann" wrote: "Robert" wrote in message ... : : If you want real lime, try a builder's merchant, especially one who : sells lime mortars. Builder's lime is a different thing altogether and is inactive on the garden. That is quite incorrect. Builders' lime is Calcium Hydroxide, known as "slaked lime" It is an alkaline material which is very frequently used to treat acid soil. And it won't decompose the bodies........ -- Sacha www.hillhousenursery.co.uk South Devon (remove the weeds to email me) |
#24
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Mike Lyle wrote:
:: Robert wrote: ::: "Franz Heymann" wrote in ::: message ... :::: :::: "Robert" wrote in message :::: ... ::::: ::::: :::::: :::::: If you want real lime, try a builder's merchant, especially :::::: one who sells lime mortars. ::::: ::::: Builder's lime is a different thing altogether and is inactive ::::: on the garden. :::: :::: That is quite incorrect. Builders' lime is Calcium Hydroxide, :::: known as "slaked lime" It is an alkaline material which is very :::: frequently used to treat acid soil. :::: :::: [snip] :::: :::: Franz ::: ::: ps Slaked lime is not builder's lime, slaked lime is gardeners' ::: lime. Builders' lime is hydrated lime. So we are as one even ::: though we didn't know it lol. Merry Christmas Franz :: :: Surely this can't be right? Calcium hydroxide is calcium hydroxide, :: whether you call it hydrated lime or slaked lime. You can't use :: gardeners' lime to make mortar, but I thought that was just because :: the builder's version was "sharper", by virtue of being fresher and :: so not as thoroughly slaked. But you can certainly use builders' :: lime in the garden, though it washes out, and isn't safe for the :: skin by any means (it kills slugs): I'd use ground chalk or :: limestone. You can use gardeners lime to make mortar. They are both the same basic compound, except for gardens it has been slaked and then dried, builders (who still use it) slake their own, IE: drop it into a dustbin full of cold water, wait until it stops boiling, then use as normal...slaked means it has been added to water to take the fire out of it, after this process it can be dried and doesn't need to be slaked again before use, this is what you buy as gardeners lime. If you find a plasterer and ask him to save all the old plaster rmoved from old houses (not cement) it is a mixture of sand and lime (and horsehair)...it breaks up the soil nicely and raises the alkalinity too. HTH |
#25
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The message
from Chris Hogg contains these words: Lime as I know it is hydrated calcium oxide, chemically Ca(OH)2. It's quite strongly alkaline, and it wouldn't surprise me if, in this litigious age, garden centres don't stock it for fear of being sued by someone who got it in their eyes, or for health and safety reasons in respect of their own staff. It's slaked lime, and is not strongly alkaline. In my local Wyvale, I found that small bags of 'lime' looked suspiciously like ground limestone, calcium carbonate, CaCO3. While this would eventually do much the same as lime, it's a lot slower acting. That depends on the acidity of the soil, but yes, it does tend to reduce acidity less and more slowly. If you want real lime, try a builder's merchant, especially one who sells lime mortars. No, *DON'T!* That will be quicklime, or calcium oxide, and is not recommended at all. It is quite caustic and generates quite a lot of heat when it comes into contact with water. Fine stuff (mixed with sand, and matured) for sticking bricks together thobut. -- Rusty Open the creaking gate to make a horrid.squeak, then lower the foobar. http://www.users.zetnet.co.uk/hi-fi/ |
#26
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The message
from "Mike Lyle" contains these words: Hydrated lime, slaked quicklime, as you say, is nasty; and there's ordinarily no horticultural point. Garden lime in the form of ground chalk or limestone is the one to go for: it works better for most purposes because it's slower-acting and washes out less. Some gardens benefit from "magnesium limestone". Quicklime's the nasty one. Hydrated lime is slaked lime, and while it will damage your skin if it has prolonged contact with it, (turns the fats in it to soap) I have taken no harm by working-up lime mortar with my bare hands - but as I said - not for a prolonged period. -- Rusty Open the creaking gate to make a horrid.squeak, then lower the foobar. http://www.users.zetnet.co.uk/hi-fi/ |
#27
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The message
from "Neil Tonks" contains these words: It isn't needed in many gardens, but where it is, it makes a real difference especially to vegetables. And grass. Have you noticed that old tennis courts are much lusher where the lines have been? -- Rusty Open the creaking gate to make a horrid.squeak, then lower the foobar. http://www.users.zetnet.co.uk/hi-fi/ |
#28
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The message
from "Franz Heymann" contains these words: I wonder which organic processes can yield such concentrated chemicals. Rendering of seaweed, I'd guess. -- Rusty Open the creaking gate to make a horrid.squeak, then lower the foobar. http://www.users.zetnet.co.uk/hi-fi/ |
#29
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The message
from "Mike Lyle" contains these words: I suppose they make and then evaporate aqueous solutions, which seems an expensive procedure. I imagine guano is involved. I think naturally-occurring nitrates would be allowed under organic rules, so Chile nitre could be used too. Hmmm. Pee on the bonfire heap and you'll get all the nitre you need... -- Rusty Open the creaking gate to make a horrid.squeak, then lower the foobar. http://www.users.zetnet.co.uk/hi-fi/ |
#30
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The message
from "Robert" contains these words: Builder's lime is a different thing altogether and is inactive on the garden. I am surprised that so many people do not use lime. It is essential where I garden in Plymouth as the soil will get 'sour' after too long without it as we are acid anyway. It is also useful to put in the planting hole to help prevent club root although the experts as usual dispel this notion. Ahem! Builder's lime is calcium oxide and is far *TOO* active on the garden, and will scorch the plant matter it comes into contact with. Having reacted with water it becomes slaked lime, which is also far from inactive - but a lot more beneficial on acid soils. Powdered chalk or limestone has the advantage that it doesn't neutralise acids so quickly, and especially in the case of limestone, may contain valuable trace elements. (Ground volcanic rock such as basalt will rejuvenate even the most exhausted soil, but doesn't tend to regulate the pH.) -- Rusty Open the creaking gate to make a horrid.squeak, then lower the foobar. http://www.users.zetnet.co.uk/hi-fi/ |
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