Potash

[Plain steer]

Hello just bought some land I’m planning on taking 2 cuts of silage off it this year just soil sampled it ph and p fine but potash just 1;s how much bagged potash do I need to bring it up to a 2 , planning on giving it 12 tons to the acre of finishing cattle muck as soon as ground drys up

 

[Tasteless]

Spread some sh!t on it.

 

[Surface Tension]

Would think you'll need about 160 units/acre of potash and your muck should add about 190 units by itself

 

[upnortheast]

Bringing index up is a long term job.
Short term concentrate on putting enough on to get a decent crop.
Muck & 1 bag / acre MOP + some N ( Sorry, i`m still in old money ) would be a start

 

[deleted user 837354]

If you are applying a lot of manure you might not want to go buying any bagged MOP. You need to do the sums on this carefully.

Your soil test result should tell you what is needed for the crop in question at the indicated indices.

 

[Derrick Hughes]

If you are applying a lot of manure you might not want to go buying any bagged MOP. You need to do the sums on this carefully.

Your soil test result should tell you what is needed for the crop in question at the indicated indices.

It is very low though abd is isue is the 2 cuts , he will be removing it as fast as it goes on also his muck wont be as concetrated as slurry
Personaly i woukd be hitting it hard with both

 

[Plain steer]

It is very low though abd is isue is the 2 cuts , he will be removing it as fast as it goes on also his muck wont be as concetrated as slurry
Personaly i woukd be hitting it hard with both

I was thinking 1cwt mop which is 60 units will that be enough?

 

[Plain steer]

Had muck analysed it has 5kg of n and 3kg of k per ton fresh weight

 

[O'Reilly]

Had muck analysed it has 5kg of n and 3kg of k per ton fresh weight

So 50t/ha muck (individual application limit) gives 250kg N and 150kg k. Why would you want it out of a bag?

 

[upnortheast]

So 50t/ha muck (individual application limit) gives 250kg N and 150kg k. Why would you want it out of a bag?

Will depend how many tonnes of muck / how many hectares you have

 

[Purli R]

Muck will give enough K for 1st cut (without going OTT) 2 bags acre MOP for 2nd cut (plus N)

 

[Boohoo]

Isn't it getting a bit late for muck before 1st cut?

 

[Bruce Almighty]

I looked up FYM values and came up with the figures 8/2/10

so by my reckoning 10 t/ac FYM gives you
(Per acre)
80 units N
20 units P
100 units K

 

[Lemon curd]

1 index of soil potash = 500 units, 1 index of soil phos =350 units. Dont apply a lot of potash to growing crops or you get luxury uptake. Feed potash to the soil in winter for build up. Long term nvestment

 

[Lemon curd]

I looked up FYM values and came up with the figures 8/2/10

so by my reckoning 10 t/ac FYM gives you
(Per acre)
80 units N
20 units P
100 units K

My fym testing said 10 ton = 12-20-72

 

[Will Blackburn]

1 index of soil potash = 500 units, 1 index of soil phos =350 units. Dont apply a lot of potash to growing crops or you get luxury uptake. Feed potash to the soil in winter for build up. Long term nvestment

On coarse sand, you’d regret putting it on out of season.

 

[crashbox]

It is very low though abd is isue is the 2 cuts , he will be removing it as fast as it goes on also his muck wont be as concetrated as slurry
Personaly i woukd be hitting it hard with both

Far more potash in FYM than slurry.

Cattle FYM c. 8.5kg Potash/tonne.

30% DM silage uses c. 8kg/t, say you're taking 10t/ac over 2 cuts = 80kg/acre. 12t FYM per acre replaces 100kg/acre.

Book says put on extra 60kg/ha (c. 25kg/acre) in autumn after last cut to build indices.

 

[Bruce Almighty]

My fym testing said 10 ton = 12-20-72

Was it fresh out of the shed or had it been rotting in the heap a while ?

 

[deleted user 837354]

Was it fresh out of the shed or had it been rotting in the heap a while ?

That wouldn't change the values.

 

[Bruce Almighty]

That wouldn't change the values.

I’m sure N would reduce
Why else do they advocate covering slurry stores and muck heaps to a lesser extent