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19th January - Coldest day

  • 12-12-2014 8:24am
    #1
    onyerbikepat
    Closed Accounts Posts: 1,921 ✭✭✭


    I was watching a documentary last night (BBC I think) about the worlds different weather systems. It was saying that the 19th January was on average the coldest day in the Northern Hemiphere. Even though Dec 21st is the shortest day, the earth holds onto heat and so lags behind.
    So I was wondering (as you do) how does this tie in with the grass growing season. Say you have a non-growing season of 4 months, that would be from 19th Nov to the 19th March. Kinda about right, when you think of it.:D


Comments

  • #2
    Blackgrass
    Closed Accounts Posts: 735 ✭✭✭Blackgrass


    onyerbikepat wrote: »
    I was watching a documentary last night (BBC I think) about the worlds different weather systems. It was saying that the 19th January was on average the coldest day in the Northern Hemiphere. Even though Dec 21st is the shortest day, the earth holds onto heat and so lags behind.
    So I was wondering (as you do) how does this tie in with the grass growing season. Say you have a non-growing season of 4 months, that would be from 19th Nov to the 19th March. Kinda about right, when you think of it.:D

    Well over here records on farm show on average it cold from about now for the next 6 weeks staring to turn about the 20th Jan so pretty accurate?!
    `Would normally go with low rate of N late Jan early feb once growth starts to return to get things going. Will vary from lighter to heavy ground abt also


  • #3
    Farmer Pudsey
    Registered Users, Registered Users 2 Posts: 6,326 ✭✭✭Farmer Pudsey


    I used to go in lat Jan early February however now I keep an eye on grounf temperatures. When ground temp exceeds 5.5C i go out with N at first opportunity either in the form of urea or slurry. However grass would benefit more with water slurry in October before closing date as this would allow roots to carry an N reserve over the winter I think.


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