Spray Water Volumes

[DrWazzock]

Probably been discussed a million times but reviewing again to reduce overheads.
If I go down to 155 litres per ha instead of 200 I only need to visit each block of land once with my 2000 litre tank which is a big saving in time and clat factor.
Is 155 litres per ha adequate for fungicides etc rather than 200. Flat fans, 04, 2 barg, 10 kph.
I find 155 is very good for glyphosate but wonder if it’s enough for T2 fungicide etc.

 

[teslacoils]

I use 100lt.

 

[snarling bee]

We rarely use more than 120. Timeliness more important than getting last 1% out of PPPs, if we are actually loosing any of that 1%.

200l was only the standard because that's what our ancestors did, and that's what trials were done with.

 

[farenheit]

Plenty in Australia using crazy low water volumes.
The water volume I use is directly correlated with how much I value my time.

 

[DrWazzock]

Thanks. That settles it.

 

[Boysground]

I swap water rates quite a lot. I really like 150l and use it mostly for spring herbicides. Did a block of wheat with Pacifica last week and one block was done at 140l so I could do it in 1 load.
I like 125l for fungicide but quite happy to drop to 100.

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[An Gof]

Probably been discussed a million times but reviewing again to reduce overheads.
If I go down to 155 litres per ha instead of 200 I only need to visit each block of land once with my 2000 litre tank which is a big saving in time and clat factor.
Is 155 litres per ha adequate for fungicides etc rather than 200. Flat fans, 04, 2 barg, 10 kph.
I find 155 is very good for glyphosate but wonder if it’s enough for T2 fungicide etc.

Been using 100l/ha as standard application here for years. Anything else is “irrigation” …….. but you will need to change those 04 nozzles.
Try some 025 Guardian Airs.

 

[DrWazzock]

Trying to turn a small farm into a part time “after tea” job, rather than an all afternoon PITA.
Getting there.

 

[Steevo]

100l for everything but pre-em and post-em herbicides.

Have dropped to 75l for glyphosate.

Never suffered anything but 100% glyphosate kill. Can’t really comment on the others.

 

[davidroberts30]

Suppose it all depends on the target and how much biomass your spraying into or through

 

[DrWazzock]

Suppose it all depends on the target and how much biomass your spraying into or through

It certainly does. I’m all cereals and OSR. When we grew a few spuds we went 400 litres on blight spray. But now they are gone I think 155 will work across the board except for low volume fine quality beet herbicides which I do at 100.
I quite like my 110 04 XR Teejets as good all rounders. They aren’t too drifty at 2 barg.
My sprayer only has single nozzle bodies.

 

[Gong Farmer]

155 is more than enough for fungicides.

 

[2wheels]

Probably been discussed a million times but reviewing again to reduce overheads.
If I go down to 155 litres per ha instead of 200 I only need to visit each block of land once with my 2000 litre tank which is a big saving in time and clat factor.
Is 155 litres per ha adequate for fungicides etc rather than 200. Flat fans, 04, 2 barg, 10 kph.
I find 155 is very good for glyphosate but wonder if it’s enough for T2 fungicide etc.

go down to 03's and up the pressure a bit will give you better coverage and also change to some of the better low drift nozzles like lechler or bfs.

 

[DrWazzock]

I did try some back and forward facing air induction nozzles last year for fungicides but considering the cost I couldn’t really see a noticeable benefit over flat fans for the same volume. Everything still died off with septoria!!
Those nozzles were a pain to clean out as well.

 

[bobk]

Instead of changing nozzles can't you just go faster

 

[DrWazzock]

Instead of changing nozzles can't you just go faster

I’m doing 10k. That’s enough without suspension for me….. and for my reaction time approaching poles.

 

[SilliamWhale]

160 for pre ems and some in crop herbicides
120 for fungicides
100 for roundup on its own

 

[Ben B]

My mate was doing 60lts to ha with round up for a contractor. That rate sounds pretty common around here aleast. The paddocks did have 3k runs which he was doing 25 kph up and down. Sprayer was self propelled with 5000L tank with 36 m boom I think

 

[Boysground]

My mate was doing 60lts to ha with round up for a contractor. That rate sounds pretty common around here aleast. The paddocks did have 3k runs which he was doing 25 kph up and down. Sprayer was self propelled with 5000L tank with 36 m boom I think

80ha fill definitely the way to go 100l/ha is 40ha for me which I like but it doesn’t happen often

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[Ben B]

80ha fill definitely the way to go 100l/ha is 40ha for me which I like but it doesn’t happen often

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Same here 40ha keeps the seeder busy for the day. I need to talk to an expert on the situation but presently I think 100ls a ha gives us plenty of leaf contact. Admittedly there was not many weeds on that block my mate was spraying.