Monitoring Nitrates

Ngāi Tahu Farming has committed to a three-year research project with Lincoln University to monitor nitrate leaching through the soil profile.

The environmental monitoring of Ngāi Tahu Te Whenua Hou Dairy Farms will involve direct measurements of nitrate leaching losses. To do this, 40 lysimeters (measuring devices) will be installed in an on-farm facility on farm one. Lysimeters are large tubes containing undisturbed columns of soil, these will be used to measure the nitrate leaching loss in drainage water. The facility will also serve as an on-farm laboratory suitable for visitors to inspect.