Clearing rushes

That will depend on speed, nozzle size, bar psi

The days of sure throw it in & cover what you can are long gone

Get a 2L jug put water in the tank set it up turn it on and measure the output of one nozzle for 60 seconds. 3 bar woukd be high IMO

Count the number of nozzles and multiply by amount of water. You now have the amount of spray the sprayer put out in 60 seconds.

You then find out your tractor speed in KM at the difference gears. Usually most lads aim for 80-100L/acre.......200-250/HA.

If you are travelling at 5km/hour with a 10M boom you travel 83M in a minutes and. cover 830sqM. A hectare ( 2.5 acres approx) is 10000 sqM . At that speed it takes about 12 minutes to cover a HA. You want the sprayer to deliver 250-300 L in that time frame.

Right away. It's well absorbed in now

2 weeks sprayed now. Is this dying off at the right pace?

I'll get the drum tomorrow and check for you. Remind me if I forget.

Dead right. I would be as well off to let the place go wild here if MCPA is removed from the shelves. Application rates and only applying in suitable weather and land conditions are vitally important if we are to hang onto it. Water system around here is already one of the hotspots in the country for MCPA when tested.

Firing out higher doses of the chemical won't make the rushes any more dead than the recommended rate and that is before you even look at the extra cost.

Stopped spraying for most neighbours a few years back because the amount of lads that wanted to spray right up to watercourses or put on double the recommended dose of chemical was driving me nuts. Trying to explain that there is a maximum rate allowed was like talking to the wall.

I find for rough ground that if you max out water: chemical ratio that you can travel a bit slower to get the application rate right. 2.7 litres in 400 litres and you are still ok usually.

I always use maximum water rate here as I would have patches of rough ground that I wouldn't be able to get to every year due to ground conditions. You would want to be covering almost 5 acres with your set-up above to be applying at the correct rate.

I posted about this in the chit chat thread. However, I don't think this will turn the tide as there are not enough on our side in the houses of power to shoot about it.

https://phys.org/news/2024-07-glyphosate-european-rivers-farming.html

At that psi & speed are you not are at 97litres per hectare?

Assuming the psi is correct @3bar & the 6kph on the speedometer is checked.

For mcpa I think the extra 20litres of water is beneficial.

You are correct tho, best practise when spraying needs to be promoted more.

Neighbour has a field right nxt to me & I've to close the windows of the house when he's spraying for docks...place is like a car wash🙄

8 kph is quite fast when spraying. When spreading fertlizer I trave @7kph. Spraying down around 3.5 to 4kph.

Try to keep spray pressure down to below 2 bar.

Sorry mph. 7mph is about 11kph and 3.8mph is about 6kph.

My sprayer is 10 neter and on my spreader i use the 10meter spreading settings.

Rushes are usuall on rough ground If I was spraying them I would be back probably below the 6kph.

I actually calibrated my spray so I have setting for about 2.5mph in a book.