Comments on: Of Calcium in the Soil – Part 4 http://blog.bolandbol.com/2010/01/21/of-calcium-in-the-soil-part-4/ Be joyful though you have considered all the facts Tue, 07 Feb 2012 06:41:12 +0000 hourly 1 http://wordpress.org/?v=3.1-alpha By: Of Calcium in the Soil - Part 6 | MamaStories http://blog.bolandbol.com/2010/01/21/of-calcium-in-the-soil-part-4/comment-page-1/#comment-17878 Of Calcium in the Soil - Part 6 | MamaStories Sat, 30 Jan 2010 21:59:50 +0000 http://blog.bolandbol.com/?p=3517#comment-17878 [...] instead of “soil”,  is it really a typo?). Click to read part 1, part 2, part 3 and part 4 and part [...] [...] instead of “soil”,  is it really a typo?). Click to read part 1, part 2, part 3 and part 4 and part [...]

]]> By: Mummum http://blog.bolandbol.com/2010/01/21/of-calcium-in-the-soil-part-4/comment-page-1/#comment-17448 Mummum Fri, 22 Jan 2010 05:13:09 +0000 http://blog.bolandbol.com/?p=3517#comment-17448 That's interesting ! Mamoni is now studying real chemistry ! Calcium phosphate is readily soluble and hence used as fertiliser that provide both calcium and phosphorus to the plant.i remember my father using something called bone meal.see http://en.wikipedia.org/wiki/Bone_meal. To quote from the internet: The use of bone as fertilizer dates from Biblical times, since in those days it was known that the best place to plant a vineyard was where there had been a great battle. John Lawes experimented with bones at his farm, treated them with acid and discovered that his crop of turnips more than doubled that produced by using untreated bones. The following is part of John Lawes patent which he was granted in 1842. Whereas bones, bone ash, and bone dust and other phosphoritic substances have been heretofore employed as manures, but always, to the best of my knowledge, in a chemically undecomposed state, whereby their action on the soils to which they have been applied has been tardy and imperfect. And whereas it is in particular well known that in the case of a large proportion of the soils of this country, the application of bone dust is of no utility in producing crops of turnips on account of the slow decomposition of the bone dust in the soil, and the consequent exposure of the young plant for a brig period to the ravages of the turnip fly. Now, the first of my said improvements consists in decomposing, in manner following, the said bones, bone ash, bone dust, and other phosphoritic substances. Previous to using them for the purposes of manure, I mix with the bones, bone ash, or bone dust, or with apatite or phosphorite, or any other substance containing phosphoric acid, a quantity of sulphuric acid, just sufficient to set free as much phosphoric acid as will hold in solution the undecomposed phosphate of lime. The result of John Lawes' experiment on turnips was: Tons per acre No phosphate 2.2 Mineral phosphate 3.05 Mineral phosphate and sulfuric acid 6.8 From these results it is clear that bones or phosphate rock must be dissolved in acid in order to be effective. Phosphate rock or ground bones may be effective in tropical countries where the soil is very acidic and rainfall is heavy. In Ontario, information on the effectiveness of phosphate rock applied to the soil is difficult to find. I wouldn't expect to see immediate results on neutral or alkaline soil. It is possible that acid soils would work on decomposing the phosphates and the bone dust. In any event, if you are interested in testing some of those materials, don't treat your whole farm, try a bit in a field and watch it for several years before drawing any conclusions.[Sustainable farming]http://eap.mcgill.ca/MagRack/SF/Spring%2088%20C.htm That’s interesting ! Mamoni is now studying real chemistry ! Calcium phosphate is readily soluble and hence used as fertiliser that provide both calcium and phosphorus to the plant.i remember my father using something called bone meal.see http://en.wikipedia.org/wiki/Bone_meal.
To quote from the internet:
The use of bone as fertilizer dates from Biblical times, since in those days it was known that the best place to plant a vineyard was where there had been a great battle. John Lawes experimented with bones at his farm, treated them with acid and discovered that his crop of turnips more than doubled that produced by using untreated bones. The following is part of John Lawes patent which he was granted in 1842. Whereas bones, bone ash, and bone dust and other phosphoritic substances have been heretofore employed as manures, but always, to the best of my knowledge, in a chemically undecomposed state, whereby their action on the soils to which they have been applied has been tardy and imperfect. And whereas it is in particular well known that in the case of a large proportion of the soils of this country, the application of bone dust is of no utility in producing crops of turnips on account of the slow decomposition of the bone dust in the soil, and the consequent exposure of the young plant for a brig period to the ravages of the turnip fly. Now, the first of my said improvements consists in decomposing, in manner following, the said bones, bone ash, bone dust, and other phosphoritic substances.

Previous to using them for the purposes of manure, I mix with the bones, bone ash, or bone dust, or with apatite or phosphorite, or any other substance containing phosphoric acid, a quantity of sulphuric acid, just sufficient to set free as much phosphoric acid as will hold in solution the undecomposed phosphate of lime.

The result of John Lawes’ experiment on turnips was:
Tons per acre
No phosphate 2.2
Mineral phosphate 3.05
Mineral phosphate and sulfuric acid 6.8

From these results it is clear that bones or phosphate rock must be dissolved in acid in order to be effective. Phosphate rock or ground bones may be effective in tropical countries where the soil is very acidic and rainfall is heavy. In Ontario, information on the effectiveness of phosphate rock applied to the soil is difficult to find. I wouldn’t expect to see immediate results on neutral or alkaline soil. It is possible that acid soils would work on decomposing the phosphates and the bone dust. In any event, if you are interested in testing some of those materials, don’t treat your whole farm, try a bit in a field and watch it for several years before drawing any conclusions.[Sustainable farming]http://eap.mcgill.ca/MagRack/SF/Spring%2088%20C.htm

]]> By: brooklinemama http://blog.bolandbol.com/2010/01/21/of-calcium-in-the-soil-part-4/comment-page-1/#comment-17415 brooklinemama Thu, 21 Jan 2010 16:12:37 +0000 http://blog.bolandbol.com/?p=3517#comment-17415 Ye-es. That is the question, isn't it... Ye-es. That is the question, isn’t it…

]]> By: Leigh http://blog.bolandbol.com/2010/01/21/of-calcium-in-the-soil-part-4/comment-page-1/#comment-17413 Leigh Thu, 21 Jan 2010 16:10:18 +0000 http://blog.bolandbol.com/?p=3517#comment-17413 Ah, but we're wiser for it! So then. The question remains, how do we apply this to our gardening? Ah, but we’re wiser for it! So then. The question remains, how do we apply this to our gardening?

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