One for the liming experts

[Scrambler]

I've got some soil with a ph of around 6. (Tested with my new Keith Mount BDH test kit ?) This ground is hopefully going into osr following wheat. I would like to use some sort of subsoiler/claydon type of drill but I'm wondering if any lime that is spread on the wheat stubble should be mixed into the soil a bit before sowing. What do you think?
Oh, and how much lime should I put on?
I farm around 10 miles west of Leicester. Pm me if you fancy quoting for doing the lime spreading.
Thanks.

 

[Steevo]

@Mounty @Cab-over Pete @Shovelhands

 

[SilliamWhale]

no. Wheat can cope with 6 and it has all winter to go down. Presuming its good quality lime

 

[Cab-over Pete]

You won’t need to mix it in, the rain will take it in for you.

If you have the land long term or own it you may want to get the pH up to 7.0 which will take approximately 2 tonnes per acre of good quality ground lime.

If it’s a short term let you may want to peg the costs back a bit by applying 1.5 tonnes per acre, but I would still go with a good quality product.

If there’s any history of clubroot the higher pH 7.0 would be advisable.

 

[Brisel]

no. Wheat can cope with 6 and it has all winter to go down. Presuming its good quality lime

Read the OP. They want to put in osr after wheat which is more sensitive to pH.

I don't think it needs incorporating personally. The drill choice will do some of that & the best place for lime is on top as Pete says. @Cab-over Pete is the man to do the job too.

 

[Against_the_grain]

We have spread lime on to stubble just before direct drilling osr and I think last year just after.

 

[T C]

Did it just after last year subsoiled than vaderstad drilled.
Variable application so some areas needed none some 4t/ha.
Seed had not emerged. It was dry however.
Thinking was that traffic damage would be outweighed by higher pH. As mentioned club root does not like higher pH.

 

[Scrambler]

Thanks for the replies. That gives me the confidence that I can get away with not mixing it in.

 

[Tompkins]

Sorry to hijack this thread but I'm also hoping to put OSR in on a land with a pH of 6, I've ordered enough gypsum to apply 2t/acre as it's very high mag soil. Will the gypsum affect the pH at all? I will also be applying 750kg/ha of Fibrophos which I think has a small neutralizing value?

 

[Brisel]

Gypsum's NV is virtually zero.

That dose of Fibrophos won't do much. Depending on the grade, the NV is only around 15%. https://www.fibrophos.co.uk/will-fibrophos-help-maintain-soil-ph/

 

[Tompkins]

Gypsum's NV is virtually zero.

That dose of Fibrophos won't do much. Depending on the grade, the NV is only around 15%. https://www.fibrophos.co.uk/will-fibrophos-help-maintain-soil-ph/

As I thought, lime needed as well...

 

[Brisel]

Never mind - if the same spreader is doing all 3 jobs they ought to do you a good £ rate!

 

[Tompkins]

Never mind - if the same spreader is doing all 3 jobs they ought to do you a good £ rate!

It's the same rate however much we do, it's our spreader!