Yara N tester

[Danieljack1991]

Have many found the Yara N Tester to be effective and reliable in what result comes back. Interested to know what growth stages people have perhaps used the tool at etc and other comments about it.

 

[Chae1]

Our agronomist did a couple fields for us last year. Used satellite images also. It recommended 100kg/ha N. Already had 120 at that stage.

The wheat all went flat, w. barley stayed up.

He's no longer our agronomist. This is part of reason.

Definitely wouldn't use it again.

 

[Danieljack1991]

Our agronomist did a couple fields for us last year. Used satellite images also. It recommended 100kg/ha N. Already had 120 at that stage.

The wheat all went flat, w. barley stayed up.

He's no longer our agronomist. This is part of reason.

Definitely wouldn't use it again.

Yes I am definitely taking it with a pinch of salt. I want to use it in a different manor agronomically anyway.

 

[Chae1]

Yes I am definitely taking it with a pinch of salt. I want to use it in a different manor agronomically anyway.

We are mainly livestock so lots of residual N.

Agronomist aware of this, but unsure if that confused it.

 

[Luke Cropwalker]

I find it a very good decision aid for topping up N levels on milling wheats, particularly when the crop has been top dressed with digestate or slurry.

 

[Danieljack1991]

We are mainly livestock so lots of residual N.

Agronomist aware of this, but unsure if that confused it.

Yes, it’s what’s underneath the crop that matters. not always what goes on top.

 

[Chae1]

Yes, it’s what’s underneath the crop that matters. not always what goes on top.

I've always thought one on sprayer would be useful for variable rate PGR application on spring barley

 

[Danieljack1991]

I've always thought one on sprayer would be useful for variable rate PGR application on spring barley

There was or is the Isaria and Yara N sensors that have been used in the past to try to match applications to crop requirements, not sure what happened with them...

 

[Badshot]

There was or is the Isaria and Yara N sensors that have been used in the past to try to match applications to crop requirements, not sure what happened with them...

There's grants for them.
So I expect they're still available

 

[mo!]

It's a tool to be used to advise not blindly follow. You need to be taking regular readings to see trends rather than absolutes and looking at other factors such as weather to make a decision. No point putting N on if it has been too dry to use the last dose for example. Our neighbour did some trial work and the results were impressive: more smaller doses, less N overall, bigger yield for less cost. Lots of management time though.

 

[BRB John]

Our agronomist did a couple fields for us last year. Used satellite images also. It recommended 100kg/ha N. Already had 120 at that stage.

The wheat all went flat, w. barley stayed up.

He's no longer our agronomist. This is part of reason.

Definitely wouldn't use it again.

You didn't add another 100kg did ya?
I would agree that tool would be best used for variable rate while applying the N rather than whether or not it needs more cause how could it know what's on the ground already..

But my problem with variable rate is how the hell are you suppose to know how much you need?

 

[Danieljack1991]

There's grants for them.
So I expect they're still available

Are they popular.

 

[Chae1]

You didn't add another 100kg did ya?
I would agree that tool would be best used for variable rate while applying the N rather than whether or not it needs more cause how could it know what's on the ground already..

But my problem with variable rate is how the hell are you suppose to know how much you need?

I did yes.

It wasn't a big acreage, so thought why not

Another lesson learnt

 

[Bumble Bee]

We've used one with a lot of success in the past. But last year we noticed that if we tested after a hot herbicide it threw it out and wanted to recommend too much nitrogen.