Urea in spring barley seed bed

[CORK]

Have not applied any p in 4 years, if I had to I would broadcast, just like any other fertilizer

Broadcast into the seedbed and mix in, pretty much same result as drill placement. P broadcast onto a standing crop will mostly be for future crops as it doesn’t move in the soil.

 

[jonnyjon]

Recent research suggests that placed p does not increase rooting and prevents the plant from forming a association with m fungi

 

[ollie989898]

Recent research suggests that placed p does not increase rooting and prevents the plant from forming a association with m fungi

For which crop? You can spot phosphate placement cock ups in maize from the road some years.

Agree with others, spring crops probably want at least half their N in the seedbed, probably get the whole lot in the bed if it is getting late.

 

[Pebd99]

Why anyone would put fertilizer into a drill is beyond me

95+% of crop in Aberdeenshire is sown with fert. It’s very easy to see up here where the fert has run out, even if it’s spread on top the next day.

 

[jonnyjon]

95+% of crop in Aberdeenshire is sown with fert. It’s very easy to see up here where the fert has run out, even if it’s spread on top the next day.

A symptom of a dead unhealthy soil with no nutrient cycling going on

 

[Chae1]

Does @quattro place fert now?

Remember speaking to him a few years ago and they didn't bother.

Interesting someone else's perspective who's moved to Aberdeenshire from another area.

 

[quattro]

Does @quattro place fert now?

Remember speaking to him a few years ago and they didn't bother.

Interesting someone else's perspective who's moved to Aberdeenshire from another area.

We grow mostly winter crops so I don’t see advantage of combine drilling
Also if it’s dry enough I spread chicken muck on top of ploughing/pressed ground and sow into that
However last year spring barley only had fold yard muck prior to ploughing and it averaged 2.75tons acre which I was very pleased with considering the very dry year

 

[Pebd99]

A symptom of a dead unhealthy soil with no nutrient cycling going on

Plenty healthy soils just a colder place that needs fert in the bed with s barley to get it up and going quickly.

 

[jonnyjon]

Fair enough, well my soils are far from healthy and they grow good yields, show no response to artificial p n k, don't require tillage and are not infested with blackgrass etc.

 

[neilo]

Fair enough, well my soils are far from healthy and they grow good yields, show no response to artificial p n k, don't require tillage and are not infested with blackgrass etc.

Your soils ‘show no response to artificial p n k’? You appear to have the job sorted, could you let us all in on the secret?

 

[MrAgrologist]

With urea use coming to an end in 2020 then i would look at the more efficient alternatives - CAN or AN - include some sulphur for Nitrogen Use Efficiency. Generally the best approach is 60% of the total in the seedbed, followed by the 40% balance when tramlines are visible. The other risk with urea in the seedbed will be ammonia affecting the germinating seeds - Axan a great balance of N and S for cereals (https://www.yara.co.uk/crop-nutrition/fertiliser/nitrate/yarabela-axan/), with THE lowest ammonia emissions. If the Spring Barley is for feed then 160 / 170 kgN /ha, for malting then 130-150 kgN/ha depending on the contract.

 

[rob1]

With urea use coming to an end in 2020 then i would look at the more efficient alternatives - CAN or AN - include some sulphur for Nitrogen Use Efficiency. Generally the best approach is 60% of the total in the seedbed, followed by the 40% balance when tramlines are visible. The other risk with urea in the seedbed will be ammonia affecting the germinating seeds - Axan a great balance of N and S for cereals (https://www.yara.co.uk/crop-nutrition/fertiliser/nitrate/yarabela-axan/), with THE lowest ammonia emissions. If the Spring Barley is for feed then 160 / 170 kgN /ha, for malting then 130-150 kgN/ha depending on the contract.

Why is urea use coming to an end ?

 

[neilo]

With urea use coming to an end in 2020 then i would look at the more efficient alternatives - CAN or AN - include some sulphur for Nitrogen Use Efficiency. Generally the best approach is 60% of the total in the seedbed, followed by the 40% balance when tramlines are visible. The other risk with urea in the seedbed will be ammonia affecting the germinating seeds - Axan a great balance of N and S for cereals (https://www.yara.co.uk/crop-nutrition/fertiliser/nitrate/yarabela-axan/), with THE lowest ammonia emissions. If the Spring Barley is for feed then 160 / 170 kgN /ha, for malting then 130-150 kgN/ha depending on the contract.

Quite apart from your statement about ‘urea use coming to an end in 2020’ (I too would be interested to hear where that statement of fact has come from), does anyone really apply 160/170kg N/Ha to Spring Barley? Surely that’s only a level that you might push to on a Winter Barley crop that showed serious potential?

Do you sell AN by any chance?

 

[Rob Holmes]

My understanding is urea without any form of inhibitor is to be banned, Inhibitored ureas are ok. But there hasn't been much publicity about it

 

[David_A]

My understanding is urea without any form of inhibitor is to be banned, Inhibitored ureas are ok. But there hasn't been much publicity about it

Where is the un biased science to support this. I feel there must be a very cosy relationship between AN manufacturers and government.

 

[David_A]

Will the inhibitor have any impact on those of us who dissolve urea?

 

[jh.]

Quite apart from your statement about ‘urea use coming to an end in 2020’ (I too would be interested to hear where that statement of fact has come from), does anyone really apply 160/170kg N/Ha to Spring Barley? Surely that’s only a level that you might push to on a Winter Barley crop that showed serious potential?

Do you sell AN by any chance?

I've been thinking for a while we need to up rates for modern varieties. Yields are pretty stagnant but it's maybe because we still use old N rates from long ago. Was saying to dad the other day , roughly , if 80units (old skool for his benefit) can grow 2 ton an acre , then surely we need 120units for 3 with same N dilution

It's just having the bottle to actually try it with malting barley

 

[Flat 10]

I've been thinking for a while we need to up rates for modern varieties. Yields are pretty stagnant but it's maybe because we still use old N rates from long ago. Was saying to dad the other day , roughly , if 80units (old skool for his benefit) can grow 2 ton an acre , then surely we need 120units for 3 with same N dilution

It's just having the bottle to actually try it with malting barley

I would expect well over 2 tonnes an acre and only use about 90units and occasionally N is high.

 

[Chae1]

I've been thinking for a while we need to up rates for modern varieties. Yields are pretty stagnant but it's maybe because we still use old N rates from long ago. Was saying to dad the other day , roughly , if 80units (old skool for his benefit) can grow 2 ton an acre , then surely we need 120units for 3 with same N dilution

It's just having the bottle to actually try it with malting barley

I've tried it on feed barley, normally go to
110 but did some at 120 and didn't see any yield benefit.

I'm generally at 90 for malting barley, but all laureate this year, so will try some at 100..

 

[clemmo]

My understanding is urea without any form of inhibitor is to be banned, Inhibitored ureas are ok. But there hasn't been much publicity about it

I was told that any urea plus (sulphur etc) will not be affected by potential new ammonia regs