How much nitrogen?

[N.Yorks.]

Yes but that's still every month for 5 months. So 170kg N/ha total. Which is bang on what I'd put on a wheat crop. Just seemed a lot for grassland to me?!

If they were taking 4 cuts of silage, aiming for 14 t Dry Matter yield per Ha then they'd be aiming to apply 310 kg N/ha. So if that was going on via Ammonium Nitrate you'd be looking at 1.1 tonnes of AN (34.5%N).........

If they were applying 34 kgN/ha per month then that's pretty much bang on per monthly grazing rotation if they were aiming to get something like 8-12 tonnes DM/ha yield.

 

[harperfarmer]

We must just be massively underproducing then as we don't put any N on grassland at all

 

[N.Yorks.]

We must just be massively underproducing then as we don't put any N on grassland at all

Maybe you've got plenty of legumes in the sward.......?

Maybe you're stocking rate is low and you don't need 14t DM/ha?

There's not really a simple one size fits all approach.

 

[crashbox]

Think they just wanted to know how much N to put on grazing land!

Personally I put on 125kg/ha of a N:S blend per month from April to August

That's big bucks for an old ley with no tests done. I'm assuming you're talking about a 40N 14SO3 urea blend.