How many units of nitrogen for a first wheat thats been after a long term grass ley?

[jackrussell101]

As above really, just wondering if I can get away without putting as much N on and not detrimentally affecting the yield, it's been grass for 10 years before with regular lashings of slurry etc

 

[DRC]

Depends what you paid for your N , soil type etc.
Ive got some very light fields that I know won’t yield more than 3.4tons, so spend accordingly .
Always used to find after a grass ley, it was often the 2nd wheat that benefitted , not so much the first .

 

[cricketandcrops]

First year after grass often very hungry compared to following year, most herbage seed growers get higher 2nd wheat yield.

 

[bobk]

50

 

[moretimeforgolf]

First year after grass often very hungry compared to following year, most herbage seed growers get higher 2nd wheat yield.

Do you think that oats would be a better option straight after grass, then go with wheat the following year?

 

[teslacoils]

200 units.

My min till wheat after grass looks most in need of N.

 

[Headless chicken]

Foliar feed it and add some humic acid. Should be able to reduce n by 30-40% then

 

[e3120]

On good wheat land, 150/60 if it was grazed, 180 if cut. As said, second wheat will be the star.

 

[Flat 10]

What does rb209 say?

 

[jackrussell101]

200 units.

My min till wheat after grass looks most in need of N.

So you didn't plough the grass then?

How do you find not ploughing the turf under?

 

[deleted user 837354]

Agree with the above, can drop it back a bit but not too crazy. Depends on previous management- heavily mucked land that has seen slurry year on year etc could get away with 100 or even just 50.

 

[teslacoils]

So you didn't plough the grass then?

How do you find not ploughing the turf under?

Was so dry after second cut the plough wouldn't go in the ground. Will plough for second wheat after it. The turf is well chopped up and the wheat is nicely there, although it looks scruffy.

 

[jackrussell101]

So for a 2nd wheat after long term grass I could drop it back alot?

Say 100 units?

 

[yellow belly]

If it has had plenty of fym/slurry
and is a strong forward crop be careful how much you use
when we used big amounts of fym /poultry muck on exe grass more than 100 kgs n would result in lower yields
due to severe lodging and desease
get it right and yields were 4 tonne and more when 4 was a very good yield

 

[DRC]

If it has had plenty of fym/slurry
and is a strong forward crop be careful how much you use
when we used big amounts of fym /poultry muck on exe grass more than 100 kgs n would result in lower yields
due to severe lodging and desease
get it right and yields were 4 tonne and more when 4 was a very good yield

4 still is for many of us

 

[czechmate]

The problem with wheat after older grass, now there is no gamma-col is wireworm. If you have lots of large circles with next to no plants...

 

[Flat 10]

I’m tempted to pull up some long term fallow this spring early in an attempt to get the rooks to eat them and all the other bugs before autumn drilling. The other possibility is to Chuck some mustard in as a cover crop before the wheat but undecided if that’s worthwhile.

 

[czechmate]

I’m tempted to pull up some long term fallow this spring early in an attempt to get the rooks to eat them and all the other bugs before autumn drilling. The other possibility is to Chuck some mustard in as a cover crop before the wheat but undecided if that’s worthwhile.

I was glad when dursban went, as it didn’t work anyway but you felt you had to try it. Gamma col and aldrin, great chems

I suppose keep pulling something like a triple k through it would get the birds eating more

 

[Two Tone]

1st wheat after PP1 or long term grass ley:
If you are buying the nitrate now, 50-75 units. (If you can get it).
If you bought it somewhere about the £400/ton, 110-120 units.
If you bought it a year ago 140-150 units max.

You are more likely to lose yield by overdoing it.
But at today’s prices, you can no longer try to hit the end of the straight line of the N response curve.
Those days are over unless you can sell wheat in excess of £300/tonne. (This might actually happen as the shortage and high cost of N reduces Global crop yields causing a shortage sometime during 2023).

 

[czechmate]

1st wheat after PP1:
If you are buying the nitrate now, 50-75 units. (If you can get it).
If you bought it somewhere about the £400/ton, 110-120 units.
If you bought it a year ago 140-150 units max.

You are more likely to lose yield by overdoing it.
But at today’s prices, you can no longer try to hit the end of the straight line of the N response curve.
Those days are over unless you can sell wheat in excess of £300/tonne. (This might actually happen as the shortage and high cost of N reduces Global crop yields causing a shortage sometime during 2023).

What is 50 units (for example) please?