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  • Cows in field, brown cow peeing on grass., sunny day.
    Rights: Racheal Bryant Published 22 December 2021 Size: 3.4 MB Referencing Hub media

    Understanding the nitrogen cycle is an important part of dairy farming. Balance is the key. Too little nitrogen and pasture plants do not thrive, but too much nitrogen can be harmful to the environment.

    Cows obtain nitrogen as they graze pasture plants and use it for their life processes and in milk production. When they consume more than they need, the excess is excreted as urine and dung. Pasture plants are not able to utilise all of the nitrogen, and it can be lost to leaching.

    Students use auditory and visual skills to construct pictures and diagrams that show the potential pathway of nitrogen from food source to effluent to leaching.

    The following resources are courtesy of Lincoln University:

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