Burnt, Hot, Quick Lime.

Say my name

Bought some last year and went out with 50kgs/acre on the silage ground. Finally getting around to doing the rest of the land and am going back again on the silage ground again. I went to buy two pallets again today and the price was 260/t. 200 last year. It was available in a farmers merchants last year. This only available in a builders merchant and just because a builder asked for it in this yard when it wasnt available in the farmers merchant as they use it for building work.

Seems farmers aren't buying. And can see why now on the price.

I've only used it last spring and this autumn. Someone convince me it's worth it. As it's looking like it may be my last time.

Ye that used it before. How did it compare to ordinary granlime and would ye still buy Burnt lime?

Easten

https://www.boards.ie/discussion/2058218285/burnt-hot-quick-lime

Is that the real white floury stuff - the white rhino?

Say my name

https://www.boards.ie/discussion/comment/118177342#Comment_118177342

It's from the same place. White rhino is hydrated lime (moisture added).

This has a grit lump to it so it can be spread with a fert spreader.

maestroamado

I think the lime builders and land lime different...

Bass Reeves

Granular lines should never be spread in the Autumn/ winter. Because they are quick acting and very soluable in water.

The hydrated lime version's are about 70% stronger than the standard granular. Ideal time to spread is March. The hydrated/burnt line version needs rain shortly after spreading or heavy dews

Base price

https://www.boards.ie/discussion/comment/118177718#Comment_118177718

I presume hydrated lime (spread on grass) kills any insects/worms that it comes in contact with especially when it gets wet?

Farmers years ago used to shake hydrated lime on the backs of housed cattle/cows during the Winter to kill lice. It was important that the cattle were kept indoors/tie up byres cause if the lime got wet from rain it would burn the skin on their backs.

Say my name

I should be fine so I'm spreading the dehydrated version..🤪

@Bass Reeves I'm spreading it now because I'm in the southeast and we usually have growth through the winter and usually not be flooded out of it and I'll have it out of the way well before slurry spreading next year.

@Base price hydrated lime burns by raising the pH of liquid to high alkaline well over 13 pH. Basically like caustic soda. Dehydrated quick lime works by raising the pH and raising liquid temperature to well over boiling point. So it would kill whatever it comes in contact with. But the ground is moist this time of year and it's not very much applied when you see it on the ground. Plus if it's like when I applied it before the lumps take that bit of time to break down. They were still there months later.

I hope to spread some gypsum too. If all goes well? And that will be going out as soon as too.

If biology is killed I should have a clean slate for applied biology next year. But I know it doesn't work that way either. Where I spread it earlier on, dung pats are being broken down fairly quickly by biology, so the kill rate was minimal.

Base price

https://www.boards.ie/discussion/comment/118177961#Comment_118177961

https://www.boards.ie/discussion/comment/118177961#Comment_118177961

Years ago my late FIL showed me a local historic FMD cattle burial site near Swords NCD. Quick lime was used on the carcasses when they were buried to prevent any further spread. Stand corrected but are you advocating spreading quick lime?

Say my name

https://www.boards.ie/discussion/comment/118178625#Comment_118178625

Not advocating anything. Bar only the convenience of being able to spread it myself I'm trying to see is it worth it.

Based on the experience of buying it I seem to be the only whatever buying it.

Seems everyone else have gone bulk spread.

mythos110

So....

Small bit of chemistry here:

Quarry lime and most gran limes are limestone calcium carbonate: CaCO3

(Note: Some quarry lime is magnesium carbonate depending on the quarry)

The big difference between "quarry" lime and gran lime is that the gran lime is ground much finer before being prilled hence reacts quicker and potentially better. Normal pH is in the region of 8. This reacts with acid in the soil to raise the pH

Burnt Lime (Growmax in gran form for land spreading) is calcium oxide: CaO

This is limestone (CaCO3) which has been burnt to release the CO2 (hence the price increases you are seeing) to create CaO. This stuff is very reactive with a pH around the 12 mark. It also has a much higher calcium content (as per kg there isn't CO2 taking up the weight if that makes sense). Do not under any circumstances use this with a wet spreader or leave in the spreader overnight as it reacts exothermically with water - meaning that when it mixes with water it releases large amounts of heat. Also wear goggles when loading and keep the windows closed when spreading as this will do a job on your eyes if you are not careful.

Hydrated lime (White Rhino) is calcium hydroxide (technically calcium di-hydroxide): Ca(OH)2

Made from Burnt lime (calcium oxide). Technically can be used for pH correction of soils and is sometimes used in gardens etc due to availability in small bags. More typically used as a cubicle bedding due to the high pH causing a kill of bacteria. Also absorbs far more moisture than say a straight cubicle limestone.

To the OP. I've used Growmax/Burnt Lime myself and still do when reseeding paddocks for simplicity and/or if testing has indicated a very low pH. Also use quarry lime if doing a more large scale correction.