Nitrate
When the chips are down
Groundwater scientists are using John Saywell's Canterbury farm to measure how well buried trenches filled with woodchips and bacteria break down nitrates in drainage water. Audio, Gallery
When the chips are down
Groundwater scientists are using John Saywell's Canterbury farm to measure how well buried trenches filled with woodchips and bacteria break down nitrates in drainage water.
AudioThe ex-university lecturers offering free environmental education
Errol Wood and Kelvin Nicolle believe that the best way for today's teenagers to learn about the environment is to be in the environment. They run environmental outreach programme for school and… Audio, Gallery
The ex-university lecturers offering free environmental education
Errol Wood and Kelvin Nicolle believe that the best way for today's teenagers to learn about the environment is to be in the environment. They run environmental outreach programme for school and…
AudioAlex Pressman: making money from seaweed
Alex Pressman is turning an invasive marine pest into a business. His company, Waikaitu, takes an invasive species of seaweed, wakame (undaria pinnatifida) and turns it into fertiliser, food and even… Audio
New mothers warned off tap water in Ashburton
Health authorities are warning of the increasing agricultural pollution in Canterbury drinking water that's potentially lethal to newborn babies. Data from the regional council shows nitrate levels… Audio
Nothing in new freshwater push deals with nitrate - ecology expert
A new push to clean up New Zealand's waterways is being criticised for failing to address the problem of nitrate seeping off farms into rivers. RNZ science reporter Jacob McSweeny has the details. Audio
Limiting nitrate leaching on dairy farms
Massey University soil scientists are investigating how taking cows off paddocks during certain times of the year could significantly reduce the amount of nitrate leaching into waterways. Audio
Limiting nitrate leaching on dairy farms
Massey University soil scientists are investigating how taking cows off paddocks during certain times of the year could significantly reduce the amount of nitrate leaching into waterways.
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