How does Rapid Lime Compare in cost to conventional lime?
Consider that you wish to raise the pH level on 100ha. Your options are:
(1) Apply 2 1/2 tons/ha of Ag-Lime (a total of 250 tons of product)
or
(2) Apply 250kg/ha of PFP Lime Prills, (a total of 25 tons of product)
NB These figures are not quotations but are used to illustrate typical cost comparisons (Rapid Lime will be happy to quote for your individual situation).
How can 250kg/ha be as effective as 2 1/2 tons/ha of conventional lime?
When it comes to lime, “It’s not the tons per hectare that raises the pH, it’s the available surface area of Calcium Carbonate that counts”. It’s a scientific fact that reducing particle size increases limes efficiency exponentially because, as particle sizes are reduced the available surface area of its Calcium Carbonate content increases dramatically.
To explain , a single 2mm chip of limestone has a surface area of only a square mm, however if we grind that same 2mm chip down to less that 20 micron we increase the surface area to an astonishing 2,400 square mm.
Over the last fifty years, scientific work in the USA, Scandinavia and Australia clearly demonstrates that finely ground particles of lime have a much greater and swifter effect of raising soil pH than coarse particles.
It is unfortunate that those who continue to denounce the effectiveness of fine particle lime must be basing their opinions on well outdated scientific tests and models that “assumed” lime particles of less than a q1/4 of a mm were 100% available.
The widely held belief that the coarse particles of conventional lime become effective over a couple of years after application has been proven to be a fallacy.
(1) Apply 2 1/2 tons/ha of Ag-Lime (a total of 250 tons of product)
or
(2) Apply 250kg/ha of PFP Lime Prills, (a total of 25 tons of product)
NB These figures are not quotations but are used to illustrate typical cost comparisons (Rapid Lime will be happy to quote for your individual situation).
How can 250kg/ha be as effective as 2 1/2 tons/ha of conventional lime?
When it comes to lime, “It’s not the tons per hectare that raises the pH, it’s the available surface area of Calcium Carbonate that counts”. It’s a scientific fact that reducing particle size increases limes efficiency exponentially because, as particle sizes are reduced the available surface area of its Calcium Carbonate content increases dramatically.
To explain , a single 2mm chip of limestone has a surface area of only a square mm, however if we grind that same 2mm chip down to less that 20 micron we increase the surface area to an astonishing 2,400 square mm.
Over the last fifty years, scientific work in the USA, Scandinavia and Australia clearly demonstrates that finely ground particles of lime have a much greater and swifter effect of raising soil pH than coarse particles.
It is unfortunate that those who continue to denounce the effectiveness of fine particle lime must be basing their opinions on well outdated scientific tests and models that “assumed” lime particles of less than a q1/4 of a mm were 100% available.
The widely held belief that the coarse particles of conventional lime become effective over a couple of years after application has been proven to be a fallacy.
RAPID LIME IS DISTRIBUTED THROUGHOUT NEW ZEALAND BY:
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