Thinking of going back to 24m from 36m. My boom height control system on my 36m is woeful and needs a big upgrade which is huge money so I’m thinking of going back to 24m which would also allow me to go back to granular fert instead of liquid (I’ve posted a thread on that in the cropping section). I could do away with the big heavy trailed setup and get into a lightweight agri buggy type sprayer for not much more money than my decent trailed is worth.
Back to 24m
- Thread starter Beefsmith
- Start date
Why not go 36m self propelled?
glasshouse
Member
- Location
- lothians
36m kit is too fudging dear
simmy_bull
Member
- Location
- North Yorkshire
It makes some interesting fag packet maths for the sprayer or fert spreader.
I make it roughly 1300 m extra length to drive and 4 extra turns per 10ha.
I make it roughly 1300 m extra length to drive and 4 extra turns per 10ha.
- Location
- Bedfordshire
We went from 24 to 36, and also from 3000l to 4000, 3 years ago. We have fields from 42 Ha to 3 Ha. I would say that the biggest contributor to increased output is a larger tank, not increased boom width. I would also say that our daily output actually has not increased that much, and is helped more by bowser assistance than anything else (although that requires another tractor and man)
- Location
- northumberland
Went from 20 to 24 years ago then to 28 6yrs ago with new sprayer, it’s big enough but surprising how much quicker it is at 4000L instead of 3000 and no half widths drilling with 4m
glasshouse
Member
- Location
- lothians
Capital v labour
- Location
- NSW, Newstralya
36m self propelled are not for the financially faint hearted . . .
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- Location
- Darlington
Think I will have two 
Nearly
Member
- Location
- North of York
Local spud grower and arable man was looking at 36m beastie as upgrade from trailed 24m.
Then he had a month in hospital in August and a slowish return back to full form.
The fact that everything was on 24m meant that almost anyone could be roped in to cover the blight spray workload.
A second hand self propelled 24m has arrived.
Another arable team have perfectly straight pairs of ruts 36m apart across all their land. It might be the 'effecient' way but it looks a mess in a year like this.
Then he had a month in hospital in August and a slowish return back to full form.
The fact that everything was on 24m meant that almost anyone could be roped in to cover the blight spray workload.
A second hand self propelled 24m has arrived.
Another arable team have perfectly straight pairs of ruts 36m apart across all their land. It might be the 'effecient' way but it looks a mess in a year like this.
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- Location
- South Devon
Europeans seem to be going wider but slower speeds and even back up towards 200L/ha to get the efficacy back as chem loses its bite. And better environmentally to travel slower, could spray in slightly worse conditions at 6kph compared to 10kph. Slower speeds would give the chance for the height control to work better?
6K and 200L?!
We spray (120L/Ha, +/-10) and liquid fertilise (350L@20%) everything at 16k, with a 2nd hand 24m SP.
At 6k I would have to live in the sprayer cab, sod that. Higher rates and pressure create drift, keep rates low and theres no need to mitigate drift with slow speed.
There is a lot to be said for efficacy, but the same goes for timeliness and making the most of these all too brief weather windows.
[T0 ready to apply as soon as the wind drops, and it stops raining...]
Mr Onions
Member
I went from 24m to 30m 2 years ago on a 4000l sp chafer. Now work on achieving 160ha in 10hr day as opposed to 120ha. 30m is a great size, find it rides as well as 24m, not a massive boom, can keep forward speeds up, works with our 6m drills and fert spreads to it easily. I look at some smaller sp's with 36m booms and it looks like the tail wags the dog, on mine everything feels balanced and the norac uc7 works well
you’ll be surprised how much spray gets ‘sucked’ under behind the sprayer itself and messes the pattern up. Thing in CPM a few months ago and I think that only went up to 12k.
Spencer
Member
- Location
- North West
Used to spray at 24km/h at 50 litres ha in Oz, with a Spra Coupe. Forward momentum pushed the spray down into crops
- Location
- NSW, Newstralya
36 m x 20km/h x 10 hours say 75% field efficiency = 540 ha
easy
easy
if you only have a small target surely a higher concentration of chemicals is better? I get for pre ems or fungicides higher makes sense.Field efficiency tends to drop quite dramatically when you are in 5 ha fields unfortunately36 m x 20km/h x 10 hours say 75% field efficiency = 540 ha
easy
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