- Location
- Easter ross
In the bin. The fact you only had 4 trays I think and he's putting out 36 odd says it all
In the bin. The fact you only had 4 trays I think and he's putting out 36 odd says it all
I still use my 8 amazone trays for my Kuhn spreader. I space them out in a similar way to the SCS man, but at wider spacings obviously, and can only do one side of spreader at a time. Gives piece of mind through the season.
Need to get some test tubes rather than the amazone measure for better comparison though.
I made a set of tubes up . Got some 25 mm / 3 mm thick plastic pipe on eBay and cut to the lengths I wanted thenI still use my 8 amazone trays for my Kuhn spreader. I space them out in a similar way to the SCS man, but at wider spacings obviously, and can only do one side of spreader at a time. Gives piece of mind through the season.
Need to get some test tubes rather than the amazone measure for better comparison though.
Good news.Have been out and about today and I can't see anything. Think the panic might be over! Not sure whether to chuck the Amazone trays in the bin (or put them on Ebay).
Good news.
So did Amazone's original recommended settings work first time or did SCS have to make some adjustments?
That's good to know. I was beginning to lose my respect for Amazone and German engineering,Original settings worked first time.
It looks almost as if one of your discs is applying massively more than the other. The tray on the tramline is very full, the other three are fairly similar.
Was one side of the spreader emptying before the other?
You could do with doing a proper tray test, 12 trays spaced out evenly between two tramlines. Drive up one tramline and back down the other. Weigh them all and see what the full spread looks like.
When SCS came out how did they calculate the spread pattern? I'm guessing they weighed every tray and threw each tray weight into a spreadsheet to give a calculated spread pattern?
It is important to understand how a spreader throws fert, it will NEVER give an even spread across the width (as in it will not place the same amount of fertiliser each meter throughout its spread width) what it does by its very nature is to distribute (generally, this could differ from manufacturer to manufacturer given proprietary vane design) more fertiliser in the centre and less towards the edge. Then when you make the next pass the overlap will even it out to an acceptable level (known as the coefficient of variation) this acceptable level differs upon which standard is being worked towards, somewhere in the low teens is pretty normal for this CV value. Hopefully this wee pic explains it
View attachment 342276
Having a think about it, I'm reckoning that you take the weight from the little amazon test tubes and input it to their controller and this does the calculation in the background to work out adjustments to give a better pattern. Seeing uneven amounts of fert in each tray across the width is normal.
We have a Amazone weigher and have always used scs ,every year, to check on spread patterns.The spreader has always been extremely accurate with the tray test,some years there can be some very minor alterations due to slight changes to the product.This is why i was concerned with your,last year's, tray testing when we always had good results with our spreader.Im pleased it has now been sorted must be a great relief for you.@marcot, reading this post has made me think of another unsolved mystery. I bought a special bit of metal from Amazone to check the apertures are the same on either side because at one point I thought the rates might be different. Deep within the software (Somewhere like Setup -> picture of tractor and trailer -> toggle once or twice -> then there's a picture of the left and right apertures -> within that you can alter the aperture pulses to change the aperture) you can adjust the aperture to get the two sides equal.
I did that and felt much better, but I can't help but notice that one side is always empty before the other. With DAP or other products that don't flow as well I thought it might just be that I had loaded one side of the spreader more than the other. Given Nitram flows nicely and levels out in the hopper, once you go below the partition it really should empty evenly, but still doesn't seem to be the case. Now I've ignored what my measuring tool said have been slowly adjusting the settings so that both sides empty at the same time. Again, it's a mystery because the measuring tool should get it right.
This isn't the same side that you were using the reduced rate for headland spreading? Maybe your fields are all huge and the headland isn't significant but on 10/20ac fields, the headland is a big chunk.@marcot, reading this post has made me think of another unsolved mystery. I bought a special bit of metal from Amazone to check the apertures are the same on either side because at one point I thought the rates might be different. Deep within the software (Somewhere like Setup -> picture of tractor and trailer -> toggle once or twice -> then there's a picture of the left and right apertures -> within that you can alter the aperture pulses to change the aperture) you can adjust the aperture to get the two sides equal.
I did that and felt much better, but I can't help but notice that one side is always empty before the other. With DAP or other products that don't flow as well I thought it might just be that I had loaded one side of the spreader more than the other. Given Nitram flows nicely and levels out in the hopper, once you go below the partition it really should empty evenly, but still doesn't seem to be the case. Now I've ignored what my measuring tool said have been slowly adjusting the settings so that both sides empty at the same time. Again, it's a mystery because the measuring tool should get it right.
Didn’t I tell you this a year ago!Been looking through this old thread. We have satellite images now for our farm in June 2018. Obviously something has gone wrong. I'm so disheartened with solid fertiliser. After we had SCS in 2016 I sort of put the issue to bed a bit. This image shows I was wrong to do so. I never really did explain all the rubbish tray tests I got compared to SCS getting a decent result. I think I'm going to get them in again and put my trays next to theirs and compare the two side by side. Wish I hadn't bought so much Nitram (only upside was we bought it at £204/t) and ordered liquid instead.
Didn’t I tell you this a year ago!