Urea or AN for D-D spring crops?

Jim Bullock

Never Forgotten
Honorary Member
We have been using urea both pre-drilling and top dressing for spring wheat, oats and linseed but I am beginning to wonder if it's the right choice. Spring crops need to get up and grow and under dry conditions the urea can often sit on the surface before being dissolved by the next rainfall. The situation can be even worse where there is a lot of surface residue after a cover crop. It could be weeks before the plants can take up the N..
Any thoughts?
 

Gong Farmer

Member
BASIS
Location
Glos
People overestimate the wetting qualities of liquid fertiliser. It's not sufficient to 'wash the fertiliser in'.

Re OP, N for spring cereals can go on at drilling or when tramlines can be seen. Crop can't use N in the meantime, so there's that time at least for N from urea to be made available.

Speed of availability more important in spring oilseeds though so I'd probably agree AN is better with these.
 

Clive

Staff Member
NFFN Member
Location
Lichfield
People overestimate the wetting qualities of liquid fertiliser. It's not sufficient to 'wash the fertiliser in'.

Re OP, N for spring cereals can go on at drilling or when tramlines can be seen. Crop can't use N in the meantime, so there's that time at least for N from urea to be made available.

Speed of availability more important in spring oilseeds though so I'd probably agree AN is better with these.

it is when you apply in the rain because you cant spray :)
 

shakerator

Member
Location
LINCS
We have been using urea both pre-drilling and top dressing for spring wheat, oats and linseed but I am beginning to wonder if it's the right choice. Spring crops need to get up and grow and under dry conditions the urea can often sit on the surface before being dissolved by the next rainfall. The situation can be even worse where there is a lot of surface residue after a cover crop. It could be weeks before the plants can take up the N..
Any thoughts?

gone back to AN
just a lot more manageable with unpredictable residue break downs/ lockups/ minerilisations etc
 

franklin

New Member
Is there any harm in spreading the urea on a fortnight or so before drilling the crop? As an advocate of urea, I must say that everything spring-sown that had urea vs AN last year was a poor 2nd place.
 

Simon C

Member
Arable Farmer
Location
Essex Coast
Is there any harm in spreading the urea on a fortnight or so before drilling the crop? As an advocate of urea, I must say that everything spring-sown that had urea vs AN last year was a poor 2nd place.

I was thinking this afternoon that I will do exactly that, this year. It is hardly going to disappear anywhere, we need at least another 6 inches of rain before any drains start running.
 

bobk

Member
Location
stafford
Back on the blue bag this year , found 3 bags of lithan in the back of the shed last year which was easily 3 years old , spread it on mowing ground and the difference was biblical compared to the other fields with 46% , not very scientific but ...
 

franklin

New Member
Cant see the difference between spreading 100kg/ha urea on a fortnight before drilling spring barley in late March, vs folk spreading muck on stubbles in August and ploughing it the next day....for drilling spring barley in March. I reckon there is enough science to justify it, so long as you have checked the weather etc.
 

rob1

Member
Location
wiltshire
Cant see the difference between spreading 100kg/ha urea on a fortnight before drilling spring barley in late March, vs folk spreading muck on stubbles in August and ploughing it the next day....for drilling spring barley in March. I reckon there is enough science to justify it, so long as you have checked the weather etc.
I have done that the last few years,half on a fortnight before drilling the rest with after rolling, as its DD in mid april to allow the soil here to dry and warm up I feel the N( urea) needs to be ready and waiting
 

Clive

Staff Member
NFFN Member
Location
Lichfield
I have done that the last few years,half on a fortnight before drilling the rest with after rolling, as its DD in mid april to allow the soil here to dry and warm up I feel the N( urea) needs to be ready and waiting

I'm not sure I would admit that to a EA inspector
 

rob1

Member
Location
wiltshire
I'm not sure I would admit that to a EA inspector
Bound to be wrong in some set of rules,but is it much different from putting AN on after drilling and then getting a downpour or putting loads of slurry on before maize or ploughing ? We are pretty flat sodont get runoff and dolook at the long range forecast to avoid extreme rain
 

BFSfertilisers

Member
BASIS
Location
Essex
Put liquid N and P down the spout at planting - much more efficient and effective, and a lot of crops respond to fresh P even when index is medium. Liquid N with P has some immediately available N, as nitrate, while the ammonium and urea components take time to convert to a plant usable form - immediate and slow release all at same time! And NO run-off.
 

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Man fined £300 for bonfire-related waste offences

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Written by William Kellett from Agriland

court-640x360.jpg
A man has pleaded guilty at Newtownards Magistrates’ Court to waste offences relating to a bonfire next to the electrical sub-station on the Circular Road in Newtownards, Co. Down.

Gareth Gill (51) of Abbot’s Walk, Newtownards pleaded guilty to two charges under the Waste and Contaminated Land (Northern Ireland) Order 1997, for which he was fined £150 each and ordered to pay a £15 offender’s levy

On June 25, 2018, PSNI officers went to Gill’s yard, where they found a large amount of waste consisting of scrap wood, pallets, carpet and underlay.

Discussion with Northern Ireland Environment Agency (NIEA) officers confirmed the site...
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