Worried about Nitrogen

amacca

Got about 3.5 bags (a bit less in practice) 21-2.2 -10 spread 20th april and cut silage early the 06th June and baled late last night (so had some time to wilt although given the weather I didn't want it too dry so no tedding)

By my initial calculations thats 73 kg to the acre nitrogen and at a rough rate of 2kg per acre per day used up by the grass per acre then I should be OK in terms of nitrogen not inhibiting the preservation etc...if those rough calculations are OK?

47 days should do it..... I hope, now that I'm thinking about it though I'm wondering how many days with almost no growth was there during that time

What do people think?...It kind of slipped my mind as the meadow itself shot up out of the ground over the last three weeks to the point where it would be getting too stemmy in many places if it was given another week......

charolais0153

amacca wrote: »

Got about 3.5 bags (a bit less in practice) 21-2.2 -10 spread 20th april and cut silage early the 06th June and baled late last night (so had some time to wilt although given the weather I didn't want it too dry so no tedding)

By my initial calculations thats 73 kg to the acre nitrogen and at a rough rate of 2kg per acre per day used up by the grass per acre then I should be OK in terms of nitrogen not inhibiting the preservation etc...if those rough calculations are OK?

47 days should do it..... I hope, now that I'm thinking about it though I'm wondering how many days with almost no growth was there during that time

What do people think?...It kind of slipped my mind as the meadow itself shot up out of the ground over the last three weeks to the point where it would be getting too stemmy in many places if it was given another week......

Its grand ...had stuff tested 27th may that 90units n on 21 april and it was all gone then

Say my name

First of all you're getting units and kgs mixed up.

There's 21 units of N in that 50kg bag.
But there's 10.5kgs of N in that 50kgs bag.

You should be fine on the time front.
2 units/day is the general run but some days could be more, some less.
You had 10 days to spare there.
Shouldn't be anything to worry about.

How to work out the kgs of whatever is in your fert work off the ton first so there's 210kgs of N in your 1000kgs of fertiliser.
There's 20 bags of fertiliser in your ton.
So 210 divided by 20 is 10.5kgs of N.

_Brian

Yes there was a period of non growth, but for last 12 days the growth has been phenomenal, probably more than compensating for the non growing phase.
The 2 units a day consumption is average.

Nekarsulm

My neighbour cut Wednesday.
It got 100 units N five weeks before, and a dose of slurry two weeks before that.
He pulled a sample of grass Tuesday, froze it and got it analyized in Oldcastle lab.
They said the N was gone.
Bales today, for better or worse!

orchard farm

Don't understand the science but was always told six weeks and away ya go,never knew nature to go by calendar farming

Keepgrowing

N well gone. Average is 2 units per day in normal growth. Growth has been explosive for the last 3 weeks so she probably ran out of N 10 days ago. Nothing to worry about

Keepgrowing

N well gone. Average is 2 units per day in normal growth. Growth has been explosive for the last 3 weeks so she probably ran out of N 10 days ago. Nothing to worry about

tellmeabit

May I ask when u put out nitrogen, where dies it go? Does the plant take it up after few days or does it remain in soil until plant needs it. Ie once uncut any excess is in the bale unless wilted well and defo not left in the field?

Robson99

Say my name wrote: »

First of all you're getting units and kgs mixed up.

There's 21 units of N in that 50kg bag.
But there's 10.5kgs of N in that 50kgs bag.

You should be fine on the time front.
2 units/day is the general run but some days could be more, some less.
You had 10 days to spare there.
Shouldn't be anything to worry about.

How to work out the kgs of whatever is in your fert work off the ton first so there's 210kgs of N in your 1000kgs of fertiliser.
There's 20 bags of fertiliser in your ton.
So 210 divided by 20 is 10.5kgs of N.

Out of curiosity what makes up the other 668 kgs??
1000 - 210 - 22 - 100 = 668

Say my name

Robson99 wrote: »

Out of curiosity what makes up the other 668 kgs??
1000 - 210 - 22 - 100 = 668

Binding agents.

Glycerol and glycerol polymers and molasses. The dusty ones use no molasses.

I think even cement dust was used years ago. Maybe it still is?

Keepgrowing

Say my name wrote: »

Binding agents.

Glycerol and glycerol polymers and molasses. The dusty ones use no molasses.

I think even cement dust was used years ago. Maybe it still is?

Grit in blends, €400 per year to replace spreading fins. Try where possible to buy CCF

Say my name

It's the one thing you never think about is what binder or filler is used in fertiliser.

It's always cost, cost and cost.