N-SENSOR TRIALS

     
    Project Overview

     

    Having been an N-Sensor user for nearly 10 years and worked with YARA UK on all aspects of the N-Sensor development we were asked to do a field scale trial to prove the benefit of using the technology.

    Our Solution

     

    We decided that the simplest way was to do a fully replicated trial that compared conventional Nitrogen applications with variable ones using the N-Sensor.  By using liquid Nitrogen we could concentrate the trial into one field and minimise any variation that may be caused by soil type.  We used a field of feed wheat, grown on Cotswold Brash soil for the trial.

    Having finished the Nitrogen applications, all the maps and quantities used were put together into a spreadsheet.  We then combined each trial plot individually and weighed the wheat.

    Results

     

    • 27ha field with each plot covering one tramline and just under 1ha
    • 3 applications, the first with sulphur, the rest straight N
    • 5 full replicates
    • 4 plots gave an increased yield
    • Overall benefit from using the N-Sensor was a 5% yield increase

    The trial was a success and proved the benefit of using variable rate Nitrogen with Yara’s N-Sensor.  Despite one of the plots showing no increase in yield, the overall increase in yield when all the plots were added together was 5%

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