Gran lime conversation rate

Asus1

Got soil test and came back lacking in lime,was advised on it to do 3ton year one and 1.5ton year two to an acre.This was obviously bulk quarry lime but I've only 30 acres and I've it fenced up into small enough fields so big tractor and spreader wouldn't really work.Spreading myself with gran lime does anyone know how many bags per acre that would convert to,thanks.

White Clover

https://www.boards.ie/discussion/2058422658/gran-lime-conversation-rate

Would the PH be around 5.6? It's a long way short for gran lime. I'd say go with the ground lime for at least the first round at 2 tonne per acre.

Asus1

Screenshot_2025-08-25-16-21-45-395_com.whatsapp.jpg

Here's the report,my land was reclaimed bog so not great to begin with

Castlekeeper

It's great weather to put out lime on such ground now, you might be waiting a bit to get it as dry again?

Unless the fields are less than an acre in size they'll have no bother, but I would err on the 2 ton side rather than 3 on black ground, heavy liming can turn it to mush.

Generally granlime is applied at 1-4 bags per acre per year. It's late in the year to be spreading now so maybe leave it til spring or else spread a bag to the acre now and go with 2 or 3 bags in the spring.

Its relatively expensive and I'm not sure how well it would work on ground such as yours. Maybe do a bit of both and see which works better for you?

funkey_monkey

I was going to put down 3T, but the lime merchant advised against going that heavy. He said put out 2T, retest and then go again after a year or two.

Gran lime would be of little use and persistence. As said above, go with ground lime and go now when the weather is good.

Asus1

https://www.boards.ie/discussion/comment/123753128#Comment_123753128

Yeah when it gets a few weeks of rain it can take months before a tractor could get out without tearing the place up.

Its never going to be great ground but I'm sick looking at rushes every year so I've them sprayed now and waiting for them to die then was hoping to lime it.Land is divided up into 6 uneven fields so all bigger than an acre.

Bass Reeves

If you are using granlime there is no point spreading it in the Autumn. Best time to spread uis March/April. Max I woukd spread us 2 bags (100 kgs) an acre.

There is another product called Growmax it'd a quicklime product, you need to spread before rain. It's 70% stronger than granulated lime

I spread granlime on a section of ground that was 5.5ph, I got it back to 6.5 within 5 years at 2 bags per acre. While the neutralising value of granlime is significantly less than ground lime its 100% available. Usually you spread ground lime in the autumn rain washes away about 25-20% every winter. The granlime is used up by wintertime.

If you buy growmax make sure to thoroughly clean the fertlizer spreader and tractor straightaway after.

leoch

How much granlime would u use in a burned of field for stitching in grass seed

It's only 2.5 to 3 acres and it got ground lime last year

Bass Reeves

https://www.boards.ie/discussion/comment/123774065#Comment_123774065

50kgs per acre maybe even a tad less 40ish kgs.. but a small field like that I would buy 3 bags for it. Anything left over throw it on tge lawn

morphy87

https://www.boards.ie/discussion/comment/123773956#Comment_123773956

why have you to clean the tractor and spreader? Does it corrode the paint?

patsy_mccabe

I spread 4 bags of Granlime last early summer on a small field that is awkward to spread ordinary ag lime on. Plan was 3 bags but trying to figure out the setting on the wagtail spreader. I might even spread the same next year and then cut back to 2 bags after that. PH was really low. I don't think the field ever got lime.

I spread it after spreading 18.6.12. Some grass there so tracks very easy to see.

Bass Reeves

https://www.boards.ie/discussion/comment/123774362#Comment_123774362

It's Quicklime ( hydrated/burnt lime) it's a very high ph alkali it will burn anything. Always spread it early in the year and just before light rain. Granlime and ground lime is need acid to activate it, Growmax has a high PH and it will burn like caustic soda

Asus1

Thanks for the replies interesting reading as everything is expensive now so don't want to waste time or money doing something for no returns.Also it seems mcpa spray is indeed a slow worker on killing rushes,docks, nettles and thistle were folding over after a day or two rushes are only starting to show effects now so time is needed.

Bass Reeves

https://www.boards.ie/discussion/comment/123774699#Comment_123774699

DDid You use an activator/sticker with the MCPA it's a liquid that softens the wax on the rushes and allows the MCPA to work better

Asus1

https://www.boards.ie/discussion/comment/123774714#Comment_123774714

I did indeed,20 a bottle so dear as well why it's not added to spray without having to buy separate is fairly scabby by these companies.