Story: Irrigation and drainage



A lysimeter is a large tube buried upright in the soil. Water that moves through the lysimeter can be collected, measured and analysed for nutrient content. Probes inside can measure the soil moisture content at different depths. Lysimeters can also be used to measure the effects of irrigation on pasture growth, and the amount of nutrients that would be lost into groundwater. This row of lysimeters at Lincoln University allows the effects of differing fertilisers to be compared.

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Lincoln University

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How to cite this page:

Terry Heiler, 'Irrigation and drainage - Irrigation and the environment', Te Ara - the Encyclopedia of New Zealand, (accessed 24 June 2024)

Story by Terry Heiler, published 24 Nov 2008