Low input grassland - SFI fertiliser rates

[110441]

Does anyone know what the equivalent rates of 12kg/ha of FYM actually correlates to in fertiliser terms? The guidance for LIG1/2 is of no help at all as it just says equivalent amounts of available nutrients as fertiliser.

 

[milkloss]

It’s 12 tonne per hectare I think and 1 tonne of cattle fym contains 6kg of nitrogen according to rb209. So that 72kg of nitrogen per hectare.

 

[Aspiring Peasants]

It’s 12 tonne per hectare I think and 1 tonne of cattle fym contains 6kg of nitrogen according to rb209. So that 72kg of nitrogen per hectare.

That’s same as I worked out

 

[Hindsight]

Does anyone know what the equivalent rates of 12kg/ha of FYM actually correlates to in fertiliser terms? The guidance for LIG1/2 is of no help at all as it just says equivalent amounts of available nutrients as fertiliser.

It’s 12 tonne per hectare I think and 1 tonne of cattle fym contains 6kg of nitrogen according to rb209. So that 72kg of nitrogen per hectare.

That’s same as I worked out

FYM in RB209 is total nitrogen 6 kg per tonne which is 72kg but the availability of Nitrogen that Nitrogen in FYM is only around 10 - 20% depending on time of year of explanation - as explained in RB209. So I would suggest might as a direct equivalent of Ammonium Nitrate or Urea Nitrogen fertiliser the 12 tonnes hectare FYM is equal to around 7 - 10 kg Nitrogen. Ask a FACTS adviser. Cheers.

 

[Aspiring Peasants]

FYM in RB209 is total nitrogen 6 kg per tonne which is 72kg but the availability of Nitrogen that Nitrogen in FYM is only around 10 - 20% depending on time of year of explanation - as explained in RB209. So I would suggest might as a direct equivalent of Ammonium Nitrate or Urea Nitrogen fertiliser the 12 tonnes hectare FYM is equal to around 7 - 10 kg Nitrogen. Ask a FACTS adviser. Cheers.

For SFI purposes though, do you not think the way it is worded would mean the simper calculation will suffice? I would suggest keeping a copy of the calculation as well to justify the figure.

 

[Hindsight]

For SFI purposes though, do you not think the way it is worded would mean the simper calculation will suffice? I would suggest keeping a copy of the calculation as well to justify the figure.

I don't know AP. And I didn't know if you or the other two posters were aware of or had missed the Available section in RB209. So thought for the benefit of the thread I would add the comment. Just flagging up. As it is n one is really going to know what has been applied apart from you. Best wishes,

 

[SpottedFlycatcher]

What did you end up deciding / getting advised on with this in the end? I'd also assumed it would be available N, but the grass is looking very hungry after all this rain.

 

[Filthyfarmer]

Another question...

Is it ok to lime pasture under the GS2 very low input inputs and GS17 lenient grazing supplement?

As far as I can see it is ok, but maybe I have missed something.

 

[PeterPrestbury]

It depends on what the lime is for (my underlining)

Under GS2 option 'Recommended Management':
'We recommend that you:

• maintain soil pH above 5.4 by liming, if necessary to promote a range of grasses and wild flowers, but not if the target is to maintain acid grassland.'

From what I can see, the GS17 supplement impacts on dates and sward heights, but not on whether or not you can apply lime.