When to apply fertiliser to grassland

HarryB97

Member
Mixed Farmer
If it’s for grazing then get it on any time from now onwards. I never fertilise my silage ground till around the end of March to be cut first week or two of May
 

Fendt516profi

Member
Livestock Farmer
Location
Yorkshire
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Mine will be staying in shed another week or two
 

Agrivator

Member
As a very rough guide:

March 1st at sea level.

Delay for two days for every 100 ft increase in altitude.

So at 1000 ft ASL, March 20th, but not if you have to plough through snow drifts.

Trials by SAC at Edinburgh in the 70s showed a significant response from N applications in mid-February, and that the response was greater if soluble Phosphate was included. It is also well established that adequate Potassium in the cell sap acts as an antifreeze and protects the cell against frost damage. But excess potassium in grass also tends to make grazing stock more susceptible to Magnesium deficiency.
 
As a very rough guide:

March 1st at sea level.

Delay for two days for every 100 ft increase in altitude.

So at 1000 ft ASL, March 20th, but not if you have to plough through snow drifts.

Trials by SAC at Edinburgh in the 70s showed a significant response from N applications in mid-February, and that the response was greater if soluble Phosphate was included. It is also well established that adequate Potassium in the cell sap acts as an antifreeze and protects the cell against frost damage. But excess potassium in grass also tends to make grazing stock more susceptible to Magnesium deficiency.
No evidence bar i know it works but we always get a great response from winter applied slurry
 

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