High pH.

[Overrun]

We have tested our soils, all are high pH, high magnesium, low sulphur and manganese.

Is there any product that could be used and make our 3 and 4 index P&k more available.

All fields are temporary and permanent grass.

 

[Oldmacdonald]

...lime?

 

[Overrun]

pH already high, using ammonium sulfate this year to add a bit of sulphur.

 

[Oldmacdonald]

Ah sorry, misread.

 

[Overrun]

Other thread I've read would suggest Tiger sulphur, but what could be applied to reduce the high pH and increase manganese?

 

[teslacoils]

Gypsum, manure, ammonium sulphate.

 

[cotswoldcs]

How high is the pH out of interest?

 

[Overrun]

7.5/7.8ph

 

[milkloss]

7.5/7.8ph

Perfect for planting a high clover sward then. Sorry, I don’t have any other input to the issue.

 

[Overrun]

Got clover in already. Low in sodium, manganese and iodine and sulphur.
Just trying to tweak it a bit for the benefit of my stock.

 

[Bogweevil]

7.5/7.8ph

Likely high free carbonates then, so unlikely ever to be possible to reduce the pH in any meaningful cost-effective way, especially if clay fraction highish.

Manure tends to make soil more alkaline, but I would not worry too much about that as it will enhance structure aiding root function.

Soil tests measure available nutrients not total nutrients.

 

[Flatlander]

I’d be intrested in a remedy for a high ph also. Mine are 8.2 /8.3. have tried tiger 90 elemental sulphur but the rates at which it need to reduce it becomes toxic and very costly. next step is to tile drain the fields to help flush out the carbonate and helping the long term health of the soil. Biggest hinderence is the cost. At your ph I’d be using Ammonium sulphate fir all my N needs and see how it is in five years.

 

[Bogweevil]

I’d be intrested in a remedy for a high ph also. Mine are 8.2 /8.3. have tried tiger 90 elemental sulphur but the rates at which it need to reduce it becomes toxic and very costly. next step is to tile drain the fields to help flush out the carbonate and helping the long term health of the soil. Biggest hinderence is the cost. At your ph I’d be using Ammonium sulphate fir all my N needs and see how it is in five years.

Prairie soils? Sodic?

In high rainfall countries like Britain soil tends to acidity so high pH often indicates basic underlying rock which can seldom be acidified.

With sandy soil that are usually only alkaline if previously limed or over-manured you have a chance and in fact is often done for blueberries.

Here is how https://ohioline.osu.edu/factsheet/agf-507

 

[snarling bee]

I also have areas with pH over 8, with excessively high calcium levels. I'm not sure you can do a lot other than foliar feed Mg (excess Ca locks up Mg) and take advantage of take-all not liking high pH, by growing continuous wheat.

Edit: Just re read your post. Continuous wheat not much use if you are all grass!

 

[Brisel]

We have tested our soils, all are high pH, high magnesium, low sulphur and manganese.

Is there any product that could be used and make our 3 and 4 index P&k more available.

All fields are temporary and permanent grass.

What is the underlying soil type? That makes a big difference to the choices for answering your question.

 

[Overrun]

Grey and red clay, with underlying sand and gravel. Never buried anything up there for some reason!

 

[ollie989898]

Manure/slurry will be the best option. Those pH aren't that high, should be fine for grass/herbage. May need to adjust species to suit.

 

[PSQ]

Carry on with ammonium sulphate but be careful it doesn’t switch to being acidic, as the stuff I use (sparingly) comes from a sulphuric acid recovery facility. It can completely borx a soil if overused.

What’s the soil texture like, friable and crumbly or cold cat sh!t?

 

[Flatlander]

Prairie soils? Sodic?

In high rainfall countries like Britain soil tends to acidity so high pH often indicates basic underlying rock which can seldom be acidified.

With sandy soil that are usually only alkaline if previously limed or over-manured you have a chance and in fact is often done for blueberries.

Here is how https://ohioline.osu.edu/factsheet/agf-507

I’ve heard of sodic soils in Saskatchewan and Alberta but locally is black clay loam over bottomless yellowish sandy clay. Some patches of grey clay. The natural drainage of the red river valley is very poor due to its heavy texture and flatness. If a region was ever a good candidate for tile drainage it’s this one.