I have been looking for few loads myself and as of yet no luck. So importing from UK might be my only choice. St gobain is as close as I can get or British gypsumAny sources of bulk gypsum?
I am looking to try a few load spread over some heavier ground.
Seems to be a mine in co.Monaghan but not sure if they sell or if its only for their own use.
Thanks.I live beside that gypsum mine in Monaghan it’s just used In their own factory to make plaster board never heard of anyone every getting it off them to spread on land.
The only similarity is appearance and calcium content. Gypsum is calcium sulphate and limestone is calcium carbonate.The gypsum mine in Monaghan used for making plaster board is quite close to the lime quarry owned by limestone industries, must be at least somewhat similar a product from the bowls of the earth, I would think given how close to one another they are.
Just from what bits im finding out on google etc it is good fertiliser/soil conditioner. On the heavier, higher Mg soils it helps break down the Mg in the soil which water particles stick to and in turn helps drainage on heavier soils and also possibly making a finer seed bed achievable.Do you mind telling what the benefits of spreading it on heavy land.
Do an Albrecht/Kinsey soil test as said above. Calcium needs to be above 60% before using gypsum or else the sulphur will take both calcium and mg with it probably making the problem worse.
How come people are happy to apply gypsum at high rates, that has I think 150kgs of S per ton, but don't recommend S at higher rates. Im at 40units on grass and this isn't recommended as it locks up a good few micro nutrients.
I understand the excess S that isn't needed to grow the crop, goes into stripping one of the Cations most in excess and turning it into a salt, but does it not cause huge lock issues in the year of application?
well I would be up on 40 units a year of S per ac for a good number of years and cant link anything really to it. I think the recommended at the moment is 25units and 40 for silage, but I dont think that takes into account that we are getting zero S from the sky anymore. Kinsey has written that he doesnt believe micro nutrients will be locked up with moderate levels of S. I have had the odd animal with Cobalt deficiency, but even the most recent one of them, was indoors.This is interesting.
A neighbour , intensive dairy farmer was telling me last week , that his vet had advised him not to spread sulphur more than once in the year , maybe twice at a push , as it was causing a condition something onto the style of laminitis. Grass was too rank .
It's an interesting read, but I do often wonder if there's a financial return on going that last 5%. To the best of my knowledge there are no labs in this country doing the tests, there's one in Scotland, a Dutch company we deal with were sending the samples to Kinsey's own lab in the US but they were planning on establishing their own way of doing them. They're not cheap tests either.
The difference in soil structure when you get the ratio right is hard to believe. Plenty of theories out their about the benefits and also that going this route is pointless, so who knows.It's an interesting read, but I do often wonder if there's a financial return on going that last 5%. To the best of my knowledge there are no labs in this country doing the tests, there's one in Scotland, a Dutch company we deal with were sending the samples to Kinsey's own lab in the US but they were planning on establishing their own way of doing them. They're not cheap tests either.