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Delayed reaction with fertiliser? Or wasted?

  • 08-04-2013 2:11pm
    #1
    Conmaicne Mara
    Closed Accounts Posts: 6,543 ✭✭✭


    I was just reading a Teagasc .pdf by Frank Hynes on the fodder shortage saying to spread Nitrogen ASAP, that it will be there to boost grass growth once temperatures recover.

    The cold weather is to blame for no/slow grass growth, with soil temperatures being too low, this much I know.

    What I want to ask is, I spread 18.6.12 on about 15/16 March, left it as long as I possibly could before lambs started dropping in the hope the weather might pick up. It didn't.

    What has happened to that fertiliser now, will it still be in the ground or has it been wasted?

    We got no snow and very little rain since then.


Comments

  • #2
    Farmer Pudsey
    Registered Users, Registered Users 2 Posts: 6,326 ✭✭✭Farmer Pudsey


    Conmaicne Mara wrote: »
    I was just reading a Teagasc .pdf by Frank Hynes on the fodder shortage saying to spread Nitrogen ASAP, that it will be there to boost grass growth once temperatures recover.

    The cold weather is to blame for no/slow grass growth, with soil temperatures being too low, this much I know.

    What I want to ask is, I spread 18.6.12 on about 15/16 March, left it as long as I possibly could before lambs started dropping in the hope the weather might pick up. It didn't.

    What has happened to that fertiliser now, will it still be in the ground or has it been wasted?

    We got no snow and very little rain since then.

    The nitrogen will have disolved into ground and been taken into roots off grasses. The excess P&K will still be in the ground. When temperature increase grass should take off.


  • #3
    Conmaicne Mara
    Closed Accounts Posts: 6,543 ✭✭✭Conmaicne Mara


    Farmer Pudsey wrote: »
    The nitrogen will have disolved into ground and been taken into roots off grasses. The excess P&K will still be in the ground. When temperature increase grass should take off.

    Thanks Pudsey. No need for me to spread anything extra so?


  • #4
    Farmer Pudsey
    Registered Users, Registered Users 2 Posts: 6,326 ✭✭✭Farmer Pudsey


    However remember that as grass takes off it will require 1 and it will head fast for 2 units a day so if 30 units spread you would want to be going out 10 days after growth starts to keep it growing fast.


  • #5
    Conmaicne Mara
    Closed Accounts Posts: 6,543 ✭✭✭Conmaicne Mara


    Ok, I'm not up to speed on units, how is that measured? Plenty of twins this year so I'll need grass on the low land as less ewes will be heading for the hill.

    Found it on Teagasc site :)

    http://www.teagasc.ie/environment/nitrates/fertiliser_planning.asp


  • #6
    Farmer Pudsey
    Registered Users, Registered Users 2 Posts: 6,326 ✭✭✭Farmer Pudsey


    Conmaicne Mara wrote: »
    Ok, I'm not up to speed on units, how is that measured? Plenty of twins this year so I'll need grass on the low land as less ewes will be heading for the hill.

    Any product in fertilizer has a composition based on NPK. So 18-6-12 is 18% N 6% P and 12%K.

    Now the way units work is re a 50kg bag. If you spread 50kgs(one Bag) of it to the acre you are putting 18 units of N, 6units of P and 12 units of K per acre. If you put out 2 bags(100kgs)/acre then it is double the units. I is an easy way to calculate how much you spread compared to dealing in KGs anf trying to calculate amount in a formulation.


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