N rates for RGT Planet spring barley

[Laggard]

Last year I applied 110kg N/ha to RGT Planet spring barley (following sugar beet) giving a yield of 7.7t/ha with grain nitrogen 1.57% - 1.68% (very dry year here in the east).
This year I have RGT Planet spring barley following fallow, sugar beet, winter OSR, winter wheat and spring barley. How much N would you put on following these different crops please? I am aiming for feed barley but would like it to remain standing. My soil type is Hanslope and Beecles medium clay loam.

 

[Will 1594]

Got a rec here to do neighbours planet as soon as it’s through . 3.25 cwt acre of 38 n 10 as soon as you can see rows all in one hit as he too tight to split it. After late lifted beet on blowing sand

 

[Spencer]

Think that’s 152kg/ha of N in new money

 

[Will 1594]

Think that’s 152kg/ha of N in new money

He must know some thing we don’t . Two lightest fields sown down at 9 st / acre

 

[Spencer]

He must know some thing we don’t . Two lightest fields down at 9 st / acre

What’s he putting on to keep it standing?

 

[yellow belly]

last year there was a lot of residual n in the soil the low winter rainfall
this year there is a lot less
but it is now looking very dry for april

 

[ajd132]

About 115kgs/ha here on hanslope clay. The yield response curves i have seen show little benefit of anything more than about 125

 

[Laggard]

What about following OSR, some of which got mown before harvest (CSFB damaged then the pollen beetle wouldn’t let it pod).

 

[Brisel]

I apply 150 kg/ha N on Planet for targeting 1.85 N. You'd have a little bit left after a failed osr crop depending on N what it had. I've got years of post harvest results so know what each variety and market requires. I'm on light land with less holding ability and slightly lower N use efficiency, so heavier stuff will require less, especially if the use of manures & cover crops has been greater.

 

[Feldspar]

I apply 150 kg/ha N on Planet for targeting 1.85 N. You'd have a little bit left after a failed osr crop depending on N what it had. I've got years of post harvest results so know what each variety and market requires. I'm on light land with less holding ability and slightly lower N use efficiency, so heavier stuff will require less, especially if the use of manures & cover crops has been greater.
[//QUOTE]


Is that taking into account the NIAB data on the very flat response curve for Planet and applied N above 125 kg/ha?

 

[Brisel]

Im taking into account my own results. I’ve tested grain samples for high and lower yielding fields and 150 kg seems to be the optimal average here. Good fields get a bit more and poorer ones a bit less.