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Mcpa application

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  • 21-04-2021 9:52pm
    #1
    893bet
    Registered Users Posts: 8,740 ✭✭✭


    Have 3 acres to spray with mcpa

    Application rate do ye use? How much water and product to the acre.


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    #2
    Birdnuts
    Registered Users Posts: 9,633 ✭✭✭Birdnuts


    893bet wrote: »
    Have 3 acres to spray with mcpa

    Application rate do ye use? How much water and product to the acre.

    Follow the guidlines on the container - there is a real problem with over application in this country with growing levels in groundwater etc. that reflects badly on farming in general


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    #3
    893bet
    Registered Users Posts: 8,740 ✭✭✭893bet


    Birdnuts wrote: »
    Follow the guidlines on the container - there is a real problem with over application in this country with growing levels in groundwater etc. that reflects badly on farming in general

    Outside of container got damaged. Hence I am asking what is people preference.

    If I recall it 2.7-5.4 litre per ha. That’s a big range so interested to what people use and how much water they used also.

    The rushes are fairly soft still really and field was cut for silage last June/july.


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    #4
    ruwithme
    Registered Users Posts: 1,183 ✭✭✭ruwithme


    I use anything from 1 litre to 1 and a half litres of mcpa for every 100 litres of water in the sprayer tank.low pressure & drive slow with the rushes.

    I'd generally get a good kill with this.this . I use a sticking agent in the mix for rushes.


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    #5
    50HX
    Registered Users Posts: 1,670 ✭✭✭50HX


    100-150 water to the acre

    1 litre mcpa to 100 water

    24-48 hours dry weather after is a better job

    Hormone based chemical so rush has to be growing


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    #6
    893bet
    Registered Users Posts: 8,740 ✭✭✭893bet


    ruwithme wrote: »
    I use anything from 1 litre to 1 and a half litres of mcpa for every 100 litres of water in the sprayer tank.low pressure & drive slow with the rushes.

    I'd generally get a good kill with this.this . I use a sticking agent in the mix for rushes.

    What sticking agent do you use?


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    #7
    Jb1989
    Registered Users Posts: 2,422 ✭✭✭Jb1989


    50HX wrote: »
    100-150 water to the acre

    1 litre mcpa to 100 water

    24-48 hours dry weather after is a better job

    Hormone based chemical so rush has to be growing

    Won't be fit to drive hard enough at 100 litres if ground is rough and rushy, usually be 125/150.


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    #8
    50HX
    Registered Users Posts: 1,670 ✭✭✭50HX


    Jb1989 wrote: »
    Won't be fit to drive hard enough at 100 litres if ground is rough and rushy, usually be 125/150.

    Adjust pressure and/or change nozzle jet

    125/150 water is OK too, I think dry period after is critical


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    #9
    Mooooo
    Registered Users Posts: 8,611 ✭✭✭Mooooo


    You need to know what litres per ha/ acre you will be putting out. The amount of product per ha/acre stays the same regardless of the volume of water


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    #10
    50HX
    Registered Users Posts: 1,670 ✭✭✭50HX


    Mooooo wrote: »
    You need to know what litres per ha/ acre you will be putting out. The amount of product per ha/acre stays the same regardless of the volume of water

    Correct but there is often a broad range on water volume per have

    With rushes I think the high end rate of water works best


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    #11
    SpraySafely
    Registered Users Posts: 16 ✭SpraySafely


    Hi Applicator,

    3Acres = 1.2 Ha

    There are a few variables which will determine the correct amount of water required.

    Rate per nozzle? L/m (depends on nozzle colour and pressure)
    Distance between nozzles? m
    Speed you will be travelling at? km/h
    Dosage Rate, can be found online if you have the name of the product usually 2.7-3.3 L/ha

    I have a spreadsheet and am happy to calculate the amount of water required for you should you wish.

    There is a huge risk to our continued use of herbicides going forward due to incorrect usage and I urge you to please not go for a 5.4L/ha application rate. You will get much better results doing 2.7L/ha twice in say Spring and Autumn.

    Below are figures I use for Agroxone90 with my sprayer, red nozzles @ 3bar.

    INPUTS
    Rate Per Nozzle 1.6 L/m
    Dispance per nozzle 0.5 m
    Sprayer Capacity 400 L
    Dosage Rate 2.7 L/ha
    Speed 7 km/h

    = Chemical Added 3.94 L


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