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nOVA sCOTIA

Could someone please explain the difference between raw mined gypsum and agricultural gypsum .An analysis of a sample of gypsum from a local gypsum mine came back as follows. Dry matter [98.140%] Calcium [221084.591 ppm] [K20 0.196%] Sulfur [48.805%] Conductivity mmhos [2.650]

1/15/2008 9:22:59 AM

[email protected]

Judging by the following analysis of agriculture grade gypsum there isn't much difference. I'd be more concerned with how this raw mined gypsum would spread. Was a sieve analysis done?

http://www.gypsumsolutions.com/newscenter/news/agricultural/landplasterbag.asp

1/15/2008 11:44:27 PM

nOVA sCOTIA

It is a mixture of powder and pelletized gypsum.Planning on spreading it sparingly on the surface by shovel.I read where gypsum doesn't effect PH,then i read that sulfur lowers ph.If agricultural gypsum contains approx 20% sulfur shouldn't it lower your ph level.

1/16/2008 11:29:55 AM

Brooklyn Corner, Nova Scotia

It's funny you mention raw gypsum Donkin. Just last week I went to the gypsum plant in Windsor. There is hundreds of tons of gypsum from chunks to dust in separate piles. Once I checked into it, it is more feasible for me to just purchase the bagged gypsum from the supplier in Kentville.

1/16/2008 12:45:34 PM

nOVA sCOTIA

Andy,I can't find bagged agricultural gypsum any where in cape breton.Iknow this topic has been discussed many times and i am hoping to put this subject to rest soon.I just need to know 2 things.Will the sulfur in gypsum alter my ph and if so should i add lime with the gypsum to counteract this.

1/16/2008 11:07:00 PM