Reseed Nitrogen

hally

Member
Livestock Farmer
Location
cumbria
Often have the question asked of me, when to apply nitrogen on a new grass reseed, in the seedbed or after establishment.
Just wondering what’s everybody’s opinion on this.
 

milkloss

Member
Livestock Farmer
Location
East Sussex
I put 5 24 24 in seedbed . Never put much nitrogen in, especially if clover is going on , depending on the seed mix I may top dress with nitrogen when its got going

when is got going? Have a reseed that's got caught in the dry spell and now have quite a few 'needles' up but that's about it. Longest is three inches down to just germinating.
 

Derrick Hughes

Member
Location
Ceredigion
when is got going? Have a reseed that's got caught in the dry spell and now have quite a few 'needles' up but that's about it. Longest is three inches down to just germinating.
At early grazing stage
I have some clamp buster / Westerwolds that has not quite greened over . So another two weeks . The long term leys will probably get no more this year as I want the clover and the grass roots to develop first
 

Derrick Hughes

Member
Location
Ceredigion
Clover is particularly sensitive to N application during establishment. Do not apply N during this period

im sticking to my guns on this one atm

Ibers recommend no more than 18 units acre but only if your N level is extremely low
 
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Great In Grass

Member
Location
Cornwall.
RB209 recommends "Lucerne and red clover crops have no requirement for N fertiliser, apart from that needed for establishment in low SNS soils (up to 50 kg N/ha)".

"For red clover and grass swards, there may be some advantage in applying a small amount of nitrogen (up to 50 kg N/ha) in the early spring if the grass appears to be nitrogen deficient".

This would be my recommendation also, @neilo is spot on with his comment.
 
Clover is particularly sensitive to N application during establishment. Do not apply N during this period

im sticking to my guns on this one atm

Ibers recommend no more than 18 units acre but only if your N level is extremely low
Clover is a high protein plant, plant protein only comes from N, during establishment the clover isn't producing N, so where does it get it from if its not already in the soil?

That's said, if soils are so low in N,P&K that they cannot get a reseed going and established, other things possibly need looked at.
 

Derrick Hughes

Member
Location
Ceredigion
Clover is a high protein plant, plant protein only comes from N, during establishment the clover isn't producing N, so where does it get it from if its not already in the soil?

That's said, if soils are so low in N,P&K that they cannot get a reseed going and established, other things possibly need looked at.
Im just going on 40 years experience on growing clover and what Ibers advised me and other advisers , but they could be wrong and am always happy to take on board what others say , they actually advise to use nitrogen leaching crops to bring down the nitrates before sowing clover if its to high


Germinal
"Avoid application of nitrogen in establishment . Apply a 0:20:30 fertiliser so potassium and phosphate is available for the young clover plant.
 
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neilo

Member
Mixed Farmer
Location
Montgomeryshire
Yes Clover is no Stupid , Grass is enemy number one, so it holds back on Nitrogen until its established

It can't fix Nitrogen until it's established so, unless you have a lot of N in the soil already, it will need feeding (not much obviously, or the grass will swamp it). I certainly don't have spare N floating round here, unless the field's just had a grazed brassica on. Not a lot left after a grass or cereal crop.
 

Bury the Trash

Member
Mixed Farmer
Got one or 2 to do this spring/summer, which carried a lot of sheep all winter and having been supplementary fed all late winter /early spring there's enough of just about everything especially N (which also has be left by previous clover stands) for careful establishment of clover, (which actually is our main priority) and new grass seeds,also the ploughing we do in prep. helps to mineralise N in the seedbed.
reseeding In behind straight grass thats been cut a lot , well that's different but we don't have any of that.
 
Im just going on 40 years experience on growing clover and what Ibers advised me and other advisers , but they could be wrong and am always happy to take on board what others say , they actually advise to use nitrogen leaching crops to bring down the nitrates before sowing clover if its to high


Germinal
"Avoid application of nitrogen in establishment . Apply a 0:20:30 fertiliser so potassium and phosphate is available for the young clover plant.
What is a Nitrogen leaching crop?
Who exactly advised this?
Why would any advisor suggest encouraging leaching?
 

Derrick Hughes

Member
Location
Ceredigion
What is a Nitrogen leaching crop?
Who exactly advised this?
Why would any advisor suggest encouraging leaching?
Scavenging then


Ibers
Establishing white clover


Clover leys may follow cereals, roots or brassicas, as these will have
reduced nitrogen levels in the soil, which encourages clover establishment.
 
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Scavenging then


Ibers
Establishing white clover


Clover leys may follow cereals, roots or brassicas, as these will have
reduced nitrogen levels in the soil, which encourages clover establishment.
Your people say N is required for establishment
Screenshot_20210518-191245_Chrome.jpg
 

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