Applying Lime

Vizslaman

Member
Location
Hampshire
I have a 12.5 acre field that has an average ph5. And a problem with reeds as the field gets very wet.

I have been advised to apply lime to up the ph level and wonder how much per acre.

TIA
 

yellowbelly

Member
Livestock Farmer
Location
N.Lincs
By the way, lime won’t actually kill reeds and rushes like some people think it does..........
..........or make the wet bits drier - even though your local, friendly neighbourhood contractor will float effortlessly over them with his big fat tyres.....
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😉
:playful: :playful:
 
All good advice so far.

By the way, lime won’t actually kill reeds and rushes like some people think it does. Get those topped and sprayed off, then with a correct pH level the grass will compete better with the rushes.
People used to say that 2 ton / acre was the maximum in one dose and if it needs more do it in split dressing again in six months or so. What's your experience?
 

Luke Cropwalker

Member
Arable Farmer
If you have high Magnesium soils then make sure you don't apply Mag lime. Top the rushes and spray them when they regrow in spring, if possible try and improve the drainage by mole ploughing or subsoiling. Rushes are an indicator of poor drainage, the low pH could be a result of this issue rather than the cause.
 

Macsky

Member
Livestock Farmer
Location
Highland
Rushes aren’t always an indicator of poor drainage systems, but they certainly can ruin the drainage capacity of the soil. With their matted roots they can soon start to hold water back in the upper profile of the soil, even when it is perfectly dry underneath, it’s just part of the reversion process in mild and wet parts of the country, where all ground basically wants to be moss and heather, as that is what is most suited to the climate, rushes are an enabling step in the journey towards that destination.

Generous calcium lime applications are the most effective in combating this, where drainage isn’t the problem, by making phosphate more available to grass/clover to help it complete, creating a more habitable environment for soil bacteria to break down plant residues and by the repulsive forces of its own ions against each other which opens the soil and helps it breathe/drain.
 
People used to say that 2 ton / acre was the maximum in one dose and if it needs more do it in split dressing again in six months or so. What's your experience?

That’s a good approach, but can be tricky when you have a small acreage against full lorries delivered.
Sometimes you can’t get things perfect and can only do your best.
 

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